CN112531714A - 5G micro base station-oriented alternating current and direct current hybrid power supply system - Google Patents
5G micro base station-oriented alternating current and direct current hybrid power supply system Download PDFInfo
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- CN112531714A CN112531714A CN202011203259.8A CN202011203259A CN112531714A CN 112531714 A CN112531714 A CN 112531714A CN 202011203259 A CN202011203259 A CN 202011203259A CN 112531714 A CN112531714 A CN 112531714A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/02—Circuit arrangements for ac mains or ac distribution networks using a single network for simultaneous distribution of power at different frequencies; using a single network for simultaneous distribution of ac power and of dc power
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
- H02J2300/26—The renewable source being solar energy of photovoltaic origin involving maximum power point tracking control for photovoltaic sources
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/14—Energy storage units
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses an alternating current and direct current hybrid power supply system facing a 5G micro base station. The invention comprises an alternating current and direct current power supply system, a remote power supervision system and a power supply detection system; the alternating current and direct current power supply system adopts a power supply mode combining commercial power and new energy, and the unit monitoring controller realizes the coordination distribution of two power supply circuits through control signals, thereby meeting the power supply requirements of each subsystem; the power supply detection system comprises an electric quantity detection module which is communicated with the unit monitoring controller through an RS485 interface; the remote electric power monitoring system comprises a wireless communication module and a terminal server; the output end of the unit monitoring controller is connected with the wireless communication module, the sending end of the wireless communication module is wirelessly connected with the terminal server, and the terminal server obtains data and working state of the power system in real time. The invention applies environment-friendly and energy-saving energy to the 5G micro base station, breaks through the condition that commercial power is used as the only power supply source, and effectively solves the problem that solar energy cannot be used in rainy days for a long time.
Description
Technical Field
The invention belongs to the technical field of electronic control equipment, and particularly relates to an alternating current and direct current hybrid power supply system for a 5G micro base station.
Background
The 5G base station is constructed by adopting macro-micro cooperation, and planning and deployment are carried out by adopting a principle mode that a macro station carries out wide area coverage and a micro station carries out deep coverage. The micro base station has high deployment flexibility, light weight, low power consumption and simple deployment. The ultra-dense networking of micro base stations based on areas is expected to become the mainstream mode of the 5G era. However, in the 5G micro base station construction process, the challenges of difficult station site acquisition, high coordination cost, high matching cost and the like exist. And the public infrastructure construction has the characteristics of small volume, hiding and beautifying, wide distribution and the like, and the problem of site selection of the 5G micro base station is greatly solved. The combination of the 5G micro base station and the public infrastructure has important effects on blind covering compensation, telephone traffic absorption, energy consumption saving, electromagnetic radiation reduction and the like, and the energy-saving emission-reduction green environmental protection effects of environmental friendliness, invisible base stations and no visual pollution are realized.
The construction of the 5G base station is closely related to a power supply system, the power supply system and the management are core zones of the whole 5G network, and the construction of the 5G micro base station is combined with public infrastructure to realize stable power supply, so that the 5G micro base station is the basis for working. The 5G micro base station draws power from the power supply station independently, and due to the fact that construction time is long, the process of power drawing application is long, and cost is high, the construction speed of the 5G micro base station is hindered, and social economy is not high. Meanwhile, the construction of a high-density 5G micro base station network brings great burden and challenge to a power system, and under the condition of insufficient mains supply, the 5G micro base station should be equipped with a storage battery as a backup energy source, so that the charging and discharging and replacement of the storage battery also cause the waste of a large amount of manpower and material resources.
In the whole, the construction of the 5G micro base station has certain requirements on a power supply technology and a power supply mode, and also provides certain challenges for the bearing capacity of a power system. Therefore, it is necessary to design an ac/dc hybrid power supply system for a 5G micro base station, which combines a new energy technology.
Disclosure of Invention
The invention provides an alternating current and direct current hybrid power supply system for a 5G micro base station, aiming at the defects of the power supply technology of the 5G micro base station.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention consists of 16 modules: the device comprises an alternating current filter, a rectifier bridge, a power factor correction device, a power switch, a solar photovoltaic cell, an MTTP controller, a storage battery pack, an electric quantity detection module, a unit monitoring controller, an electric power controller, a DC/DC converter, a direct current filter circuit, a 5G micro base station, a wireless communication module, a terminal server and a direct current filter circuit. According to different functions of the system, the whole system can be divided into three parts: the system comprises an alternating current direct current power supply system, a remote power monitoring system and a power supply detection system. In an alternating current and direct current power supply system, the system adopts a power supply mode of combining commercial power and new energy, and a monitoring unit controller realizes the coordinated distribution of two power supply circuits through control signals, so that the power supply requirements of each subsystem are met.
The alternating current and direct current power supply system comprises an alternating current filter, a rectifier bridge, a power factor correction device, a power switch, a solar photovoltaic cell, an MTTP controller, a storage battery pack, a power controller, a DC/DC converter and a direct current filter circuit. The commercial power is input into an alternating current filter, the alternating current filter is connected with a rectifying circuit, the rectifying circuit is connected with a power factor corrector, the power factor corrector is connected with a power switch, the power switch is connected to a DC/DC converter to realize direct current voltage conversion and is connected to a direct current filter circuit, and the direct current filter circuit outputs voltage to stably supply power to the 5G micro base station. The solar photovoltaic cell absorbs light and converts the light into electric energy to be input into the MTTP controller, and the MTTP controller is connected with the storage battery pack. The storage battery pack is connected with the power switch, is also connected with the DC/DC converter through the power switch to realize direct-current voltage conversion, is connected to the direct-current filter circuit, and supplies power to the 5G micro base station through the output voltage of the direct-current filter circuit. The unit monitoring controller outputs a control signal to the power controller, and the power controller controls the power switch to selectively output the electric energy of the commercial power or the storage battery.
The alternating current filter can be a KEILS power filter, an EMI power filter and the like, the rectifier bridge can be a universal bridge rectifier circuit or a full-wave rectifier circuit, the power factor correction device is a universal power factor correction circuit, the MPPT controller can be a controller with the model of ZSCU-48V40A and the like, the power controller can be an E-series SCR power controller and the like, the DC/DC converter can be an ADS-15524 and the like, and the direct current filter circuit is a universal passive filter circuit such as an RC-pi filter circuit and an LC filter circuit and the like.
The power supply monitoring system comprises an electric quantity detection module. The electricity quantity detection module comprises an electricity meter module, an ESP8266 module and an AC-DC module. The ESP8266 obtains electric quantity information including main parameters such as power, voltage and electric quantity from the electric quantity meter module through a serial port. The working parameters of charging and discharging of the storage battery are collected in real time, and the electric quantity detection module is communicated with the unit monitoring controller through an RS485 interface.
The remote power monitoring system comprises a wireless communication module and a terminal server. The data output end of the monitoring unit controller is connected with the wireless communication module, the data sending end of the wireless communication module is wirelessly connected with the terminal server, and the terminal server obtains data and working state of the power system in real time. Wherein, the wireless communication module can be selected from DT-5058, RS232/485/422-LORA and other models.
The system is an alternating current and direct current hybrid power supply system which is combined with a new energy technology and faces to a 5G micro base station. At present, a power supply system adopts a far-end power supply mode, the construction time is long, the cost is high, more application procedures exist, certain burden and challenge are brought to a power system by the construction of a high-density 5G micro base station network, and the monitoring and maintenance of the 5G micro base station are very complicated and difficult. However, the system is applied to the 5G micro base station integrated with infrastructure, the electricity is taken from the municipal carrier power supply system nearby and is converted into the direct current power supply of the 5G micro base station, the alternating current and direct current hybrid power supply system is formed by combining a new energy technology, the load of the power supply system is reduced under the condition that the normal work of the 5G micro base station is guaranteed, and the system is energy-saving and environment-friendly. Meanwhile, the Internet of things technology is used for monitoring the hybrid power supply system in real time, so that original measurement data can be obtained, and useful data are provided for improvement and optimization of the system.
The 5G RAN architecture evolves into a CU, DU, and AAU three-level structure. The CU and the DU are arranged in the same station, the DU is connected with the AAU in a remote mode, and the power supply system mainly supplies power to the AAU. The utility model provides a commercial power passes through the wave filter, rectifier bridge and power factor correcting unit after with 220V alternating current conversion to the required 48V direct current of 5G little basic stations and flows in the direct current generating line and supply power, supply power to 5G little basic stations as alternating current power supply end, and use self-adaptation particle swarm algorithm in global maximum power point tracking through MTTP controller, carry out maximum power point tracking to solar energy, it is fast to possess the convergence rate, the accuracy is high, and the better characteristics of stability, high-efficient with electric energy storage in the battery, the battery flows in the direct current generating line as the direct current supply end and supplies power. The monitoring unit controller detects the storage condition of the electric quantity of the storage battery in real time through the electric quantity detection module, and the coordination control of two paths of power supply to the power switch is realized by outputting a control signal to the power controller. And the direct current is input into a DC/DC converter for conversion, so as to provide required voltage for the 5G micro base station. When the storage battery and the photovoltaic power generation device are sufficient, the battery is used for inversion power supply. When the power supply of the storage battery and the photovoltaic power generation device is insufficient, the storage battery and the photovoltaic power generation device are supplied by commercial power, the power switch is switched uninterruptedly, two paths of output of alternating current and direct current are provided, and uninterrupted operation of communication equipment is ensured.
The electric quantity detection module detects the electric quantity of the storage battery in real time, the electric quantity data signal is communicated with the monitoring unit controller through the RS485 interface, the monitoring unit controller monitors the working state of the power system in real time, the electric power data and the working state of the power supply system are transmitted to the wireless communication module through the TTL interface, the wireless communication module transmits the electric power data and the working state of the power supply system to the terminal server in a wireless communication mode, the real-time monitoring of the data state of the 5G micro base station power supply system is remotely realized, and the power supply system can be overhauled in time when a fault occurs.
In the process of integrating the 5G micro base station into the infrastructure, a plurality of infrastructure subsystems can be matched on the basis of the system. The temperature control system plays an important role in controlling the temperature of the 5G micro base station, the temperature detection system is a closed-loop control system, a temperature sensor is arranged in the closed-loop control system, real-time detection is carried out on temperature data in the advertising board, when the detected temperature value reaches the upper limit, the temperature reduction device carries out temperature reduction processing on the micro base station, the temperature detection module detects the temperature of the 5G micro base station and carries out real-time feedback, and the 5G micro base station can be effectively operated. The lighting system may serve as an important subsystem of the infrastructure. The illumination system is a closed-loop control system, a light sensor is arranged in the illumination system and can detect the illumination intensity of the external environment of the billboard in real time, the obtained detection signal can be converted into a digital signal through an analog-to-digital converter, the monitoring unit controls the illumination controller according to the received digital signal, the intensity of the illumination device is adjusted by applying a self-adaptive light adjusting technology, and energy is saved. The monitoring unit controller is used as a main control unit to carry out coordination control on each subsystem according to feedback signals of each detection module, and the power supply system provides electric energy for each subsystem.
Advantageous description of the invention:
1. the system adheres to an energy-saving and environment-friendly idea, combines a new energy technology, provides an alternating current and direct current hybrid power supply system for a 5G micro base station, emphatically considers the utilization of electric energy, ensures that the electric power is supplied by commercial power under the condition of insufficient light and the solar energy is supplied by the solar energy under the condition of sufficient light through the coordinated control of a commercial power supply mode and a solar storage battery power supply mode, plays the effects of environment protection and energy saving, applies environment-friendly and energy-saving energy to the 5G micro base station, breaks through the condition of using the commercial power as a unique power supply source, and effectively solves the problem that the solar energy can not be used due to long-term rainy weather.
2. The system can monitor the power supply system in real time, transmit the power data and the working state of the power system to the terminal server in a wireless transmission mode, provide analysis data for remote monitoring, timely overhaul the fault system and provide data support for improvement and optimization of the power supply system.
3. The system can be a 5G micro base station, comprises infrastructure integrated on a billboard, a bus station, a monitoring pole and the like, supplies power for a matching system, comprises subsystems such as a temperature control system and an illumination system, and enables the matching system to work effectively on the basis of ensuring the effective work of the 5G micro base station.
Drawings
FIG. 1 is a block diagram of the overall control of a power supply system;
FIG. 2 is a power monitoring control block diagram;
FIG. 3 is a companion system control block diagram;
Detailed Description
As shown in fig. 1, the present invention provides an ac/dc hybrid power supply system for a 5G micro base station, aiming at the defects of the power supply technology of the 5G micro base station. The system consists of 16 modules: the device comprises an alternating current filter, a rectifier bridge, a power factor correction device, a power switch, a solar photovoltaic cell, an MTTP controller, a storage battery pack, an electric quantity detection module, a unit monitoring controller, an electric power controller, a DC/DC converter, a direct current filter circuit, a 5G micro base station, a wireless communication module, a terminal server and a direct current filter circuit.
According to different functions of the system, the whole system can be divided into three parts: the system comprises an alternating current direct current power supply system, a remote power monitoring system and a power supply detection system. In an alternating current and direct current power supply system, the system adopts a power supply mode of combining commercial power and new energy, and a monitoring unit realizes the coordinated distribution of two power supply circuits through a control signal, so that the power supply requirements of each subsystem are met.
The alternating current and direct current power supply system comprises an alternating current filter, a rectifier bridge, a power factor correction device, a power switch, a solar photovoltaic cell, an MTTP controller, a storage battery pack, a power controller, a DC/DC converter and a direct current filter circuit. The commercial power is input into an alternating current filter, the alternating current filter is connected with a rectifying circuit, the rectifying circuit is connected with a power factor corrector, the power factor corrector is connected with a power switch, the power switch is connected to a DC/DC converter to realize direct current voltage conversion and is connected to a direct current filter circuit, and the direct current filter circuit outputs voltage to stably supply power to the 5G micro base station. The solar photovoltaic cell absorbs light and converts the light into electric energy to be input into the MTTP controller, and the MTTP controller is connected with the storage battery pack. The storage battery pack is connected with the power switch, is also connected with the DC/DC converter through the power switch to realize direct-current voltage conversion, is connected to the direct-current filter circuit, and supplies power to the 5G micro base station through the output voltage of the direct-current filter circuit. The unit monitoring controller outputs a control signal to the power controller, and the power controller controls the power switch to selectively output the electric energy of the commercial power or the storage battery.
The power supply monitoring system comprises an electric quantity detection module. The electricity quantity detection module comprises an electricity meter module, an ESP8266 module and an AC-DC module. The ESP8266 obtains electric quantity information including main parameters such as power, voltage and electric quantity from the electric quantity meter module through a serial port. And working parameters such as charging and discharging of the storage battery are collected in real time, and the electric quantity detection module is communicated with the unit monitoring controller through an RS485 interface.
The remote power monitoring system comprises a wireless communication module and a terminal server. The data output end of the monitoring unit controller is connected with the wireless communication module, the data sending end of the wireless communication module is wirelessly connected with the terminal server, and the terminal server obtains data and working state of the power system in real time.
To make the diagram unambiguous, supplementary explanations are started below.
As shown in fig. 2, the electric quantity detection module detects the electric quantity of the storage battery in real time, and communicates an electric quantity data signal with the monitoring unit controller through an RS485 interface, the monitoring unit controller monitors the working state of the power system in real time, and transmits the electric power data and the working state of the power supply system to the wireless communication module through a TTL interface, the wireless communication module transmits the electric power data and the working state to the terminal server in a wireless communication mode, so that the remote real-time monitoring of the data state of the 5G micro base station power supply system is realized, and the power supply system can be overhauled in time when a fault occurs.
As shown in fig. 3, the 5G micro base station can support a plurality of infrastructure subsystems in the process of being integrated in the infrastructure. The temperature control system plays an important role in controlling the temperature of the 5G micro base station, the temperature detection system is a closed-loop control system, a temperature sensor is arranged in the closed-loop control system, real-time detection is carried out on temperature data in the advertising board, when the detected temperature value reaches the upper limit, the temperature reduction device carries out temperature reduction processing on the micro base station, the temperature detection module detects the temperature of the 5G micro base station and carries out real-time feedback, and the 5G micro base station can be effectively operated. The lighting system may serve as an important subsystem of the infrastructure. The illumination system is a closed-loop control system, a light sensor is arranged in the illumination system and can detect the illumination intensity of the external environment of the billboard in real time, the obtained detection signal can be converted into a digital signal through an analog-to-digital converter, the monitoring unit controls the illumination controller according to the received digital signal, the intensity of the illumination device is adjusted by applying a self-adaptive light adjusting technology, and energy is saved. The monitoring unit controller is used as a main control unit to carry out coordination control on each subsystem according to feedback signals of each detection module, and the power supply system provides electric energy for each subsystem.
Claims (5)
1. An alternating current and direct current hybrid power supply system facing a 5G micro base station is characterized by comprising an alternating current filter, a rectifier bridge, a power factor correction device, a power switch, a solar photovoltaic cell, an MTTP controller, a storage battery pack, an electric quantity detection module, a unit monitoring controller, a power controller, a DC/DC converter, a direct current filter circuit, the 5G micro base station, a wireless communication module, a terminal server and a direct current filter circuit; according to different functions of the system, the whole system is divided into three parts: the system comprises an alternating current direct current power supply system, a remote power monitoring system and a power supply detection system; in an alternating current and direct current power supply system, the system adopts a power supply mode of combining commercial power and new energy, and a unit monitoring controller realizes the coordinated distribution of two power supply circuits through control signals so as to meet the power supply requirements of each subsystem;
the power supply detection system comprises an electric quantity detection module, and the electric quantity detection module is communicated with the unit monitoring controller through an RS485 interface;
the remote electric power monitoring system comprises a wireless communication module and a terminal server; the data output end of the unit monitoring controller is connected with the wireless communication module, the data sending end of the wireless communication module is wirelessly connected with the terminal server, and the terminal server obtains data and working states of the power system in real time.
2. The alternating current and direct current hybrid power supply system facing the 5G micro base station as claimed in claim 1, wherein the alternating current and direct current hybrid power supply system comprises an alternating current filter, a rectifier bridge, a power factor correction device, a power switch, a solar photovoltaic cell, an MTTP controller, a storage battery pack, a power controller, a DC/DC converter and a direct current filter circuit; the commercial power is input into an alternating current filter, the alternating current filter is connected with a rectifying circuit, the rectifying circuit is connected with a power factor corrector, the power factor corrector is connected with a power switch, the power switch is connected to a DC/DC converter to realize direct current voltage conversion and is connected to a direct current filter circuit, and the direct current filter circuit outputs voltage to stably supply power to the 5G micro base station; the solar photovoltaic cell absorbs light and converts the light into electric energy to be input into the MTTP controller, and the MTTP controller is connected with the storage battery pack; the storage battery pack is connected with the power switch, is also connected with the DC/DC converter through the power switch to realize direct-current voltage conversion, is connected to the direct-current filter circuit, and supplies power to the 5G micro base station through the output voltage of the direct-current filter circuit; the unit monitoring controller outputs a control signal to the power controller, and the power controller controls the power switch to selectively output the electric energy of the commercial power or the storage battery.
3. The AC-DC hybrid power supply system for the 5G micro base station as claimed in claim 2, wherein the AC filter is selected from a KEILS power filter and an EMI power filter; the rectifier bridge can adopt a universal bridge rectifier circuit or a full-wave rectifier circuit, the power factor correction device adopts a universal power factor correction circuit, the MPPT controller can adopt a controller with a model of ZSCU-48V40A, the power controller can adopt an E series SCR power controller model, the DC/DC converter can adopt an ADS-15524 model, and the direct current filter circuit adopts a universal passive filter circuit comprising an RC-pi type filter circuit and an LC filter circuit.
4. The alternating current and direct current hybrid power supply system facing the 5G micro base station as claimed in claim 2, wherein the electric quantity detection module comprises an electric quantity meter module, an ESP8266 module and an AC-DC module; the ESP8266 acquires electric quantity information including power, voltage and electric quantity from the electric quantity meter module through a serial port, and collects working parameters of charging and discharging of the storage battery in real time;
the electric quantity detection module detects the electric quantity of the storage battery in real time, the electric quantity data signal is communicated with the monitoring unit controller through the RS485 interface, the monitoring unit controller monitors the working state of the power system in real time, the electric power data and the working state of the power supply system are transmitted to the wireless communication module through the TTL interface, the wireless communication module transmits the electric power data and the working state of the power supply system to the terminal server in a wireless communication mode, the real-time monitoring of the data state of the 5G micro base station power supply system is remotely realized, and the power supply system can be overhauled in time when a fault occurs.
5. The AC-DC hybrid power supply system for 5G micro base stations according to claim 2, wherein the AC-DC hybrid power supply system provides power for each subsystem in the 5G micro base station.
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