CN209472388U - A Photovoltaic DC Power Distribution System - Google Patents

Abstract

The utility model discloses a photovoltaic direct current power distribution system, which comprises a photovoltaic power station, a distribution platform, a fully charged photovoltaic cell, a direct current distribution station and a photovoltaic cell with insufficient power; In the photovoltaic cells, the DC distribution station is intelligently distributed through the distribution platform according to the needs of users; the battery power status is sent to the distribution platform through the induction system, and the delivery personnel can combine the DC distribution station with the location and model of the photovoltaic cells on the distribution platform. The power demand of the power station is intelligently distributed, replaced and recycled. The utility model adopts the photovoltaic power station to directly store the electric energy generated by solar energy in multi-type photovoltaic cells, which reduces the power generation system equipment and power generation costs, and solves the problem of the small application range of the general DC power distribution system, the long delivery time and the distribution and recovery of photovoltaic cells. Use unreasonable questions.

Description

A Photovoltaic DC Power Distribution System

technical field

The utility model relates to the technical field of photovoltaic power distribution, in particular to a photovoltaic DC power distribution system.

Background technique

With the advancement of science and technology and the increase of electronic products, more than 60% of people's daily electrical appliances are DC products, and they generally obtain electric energy through the "AC → DC" power supply method or the "AC → DC" method of charging their batteries. These methods High energy consumption and complex system. Therefore, there is an increasing demand for building a DC power distribution system. However, the existing DC power distribution system has the problems of small coverage, insufficient sources of low-grade DC power, unintelligent distribution and other uncontrollable variables. At present, the DC power distribution system has not been popularized in buildings or homes, so users cannot enjoy it anytime and anywhere. Low-grade electrical energy provided by the DC power distribution system.

Photovoltaic power generation, as a form of clean energy power generation, has entered a period of rapid development, and its power generation cost has been decreasing year by year, and has approached retail electricity prices. Independent photovoltaic power generation systems that do not provide AC power supply have lower power generation costs. Small independent photovoltaic power generation systems with batteries such as solar street lights can be installed in various scattered idle spaces (parking shed roofs, sunshade roofs, balconies, bus stops , rental bicycle roof, etc.), does not affect the use of the original space, and stores photovoltaic power generation in the battery. In addition to satisfying the use of the site, its photovoltaic power generation can be deployed in the form of distributed photovoltaic cells to supply DC power for various occasions. The utility model will be based on the photovoltaic power generation technology and combine the DC power distribution system with intelligent distribution to build a photovoltaic DC power distribution system.

The disclosure of the above background technical content is only used to assist in understanding the utility model concept and technical solution of the present utility model, and it does not necessarily belong to the prior art of this patent application. If there is no clear evidence that the above content is on the filing date of this patent application In the case of disclosure, the above background technology should not be used to evaluate the novelty and inventiveness of this application.

Utility model content

The utility model provides a photovoltaic DC power distribution system and a power distribution method thereof for the problems of small coverage of the DC power distribution system, insufficient sources of low-grade DC power sources, and unintelligent distribution. The utility model combines the DC power distribution system with intelligent distribution, and uses scattered idle spaces, municipal public facilities, balconies, community signs, street lamps, etc. to set up solar photovoltaic panels with suitable area and capacity on the basis of photovoltaic power generation technology. Photovoltaic battery boxes, and intelligently distribute fully charged multi-type photovoltaic batteries according to user needs through Internet technology. At the same time, the photovoltaic battery with insufficient power can also be recycled to the corresponding photovoltaic power station for recharging through the distribution platform, and finally build an urban photovoltaic DC power distribution system. It can not only improve the utilization rate of photovoltaic power, meet user needs quickly and efficiently, but also save land, protect the environment and achieve sustainable development.

In order to realize the above object, the technical scheme that the utility model adopts is as follows:

A photovoltaic DC power distribution system, characterized in that it includes a photovoltaic power station, a distribution platform, a fully charged photovoltaic cell, a DC power distribution station, and a photovoltaic cell with insufficient power; Store the electric energy generated by solar energy in fully charged photovoltaic cells with the charge and discharge controller, and intelligently distribute the DC power distribution station through the distribution platform according to the needs of users; the DC power distribution station includes borrowing power stations, replacement power stations, and shared charging cabinets . Fixed DC power consumption system; the fixed DC power consumption system is to realize the power demand of household appliances, LED lighting and security monitoring system, etc. by fully charged photovoltaic cells through the DC power supply bus. The insufficient power photovoltaic cell automatically displays or sends a signal of insufficient power to the distribution platform, and is recycled to the corresponding photovoltaic power station for recharging after receiving the signal. The photovoltaic power station is to make full use of scattered idle spaces (parking shed roofs, sunshade roofs, etc.), municipal public facilities (bus stations, rental bicycle shed roofs, etc.), balconies, community signs, street lights, etc., with suitable area and capacity. Suitable solar photovoltaic panels charge the photovoltaic cells.

In the photovoltaic power station, the photovoltaic modules charge and store photovoltaic cells through the photovoltaic controller (which acts as a voltage regulator), the DC bus and the charging and discharging controller.

The area of the solar photovoltaic power generation panels used in the photovoltaic power station is determined by comprehensive consideration of the location of the components, the area that can be effectively used, and the size of the battery box. The principle is to adapt measures to local conditions, make full use of terrain advantages, and improve battery charging efficiency.

The distribution platform can uniformly allocate fully charged photovoltaic cells and insufficiently charged photovoltaic cells according to the needs of users in the DC power distribution station.

The fully charged photovoltaic cells are multi-type photovoltaic cells, which are stored in a storage box made of insulating materials. The model selection is determined by the area and location of the installed photovoltaic panels. The photovoltaic battery uses a battery such as a polymer lithium battery as a power storage unit, and can also provide charging for electronic equipment.

The fully charged photovoltaic battery is a fully charged small photovoltaic battery (such as a power bank) that can be stored in a power station. The standard battery capacity of the power bank can be 10400mAh, which can meet the daily charging needs of mobile electronic devices for one day. User charging is fast and easy to use.

The fully-charged photovoltaic battery is a fully-charged medium-sized photovoltaic battery that can be distributed to shared charging cabinets, etc., to meet the centralized emergency charging needs of users, and can also be used as a charging power source for the current shared power bank. Taking the commonly used models of electric vehicles as an example, the battery pack with a capacity of 48V/10Ah can be set.

The fully charged photovoltaic cells are fully charged large photovoltaic cells that can be distributed to fixed DC power systems, such as workplaces, entertainment venues, and home users. To meet the power demands of household DC appliances, architectural lighting (LED lamps) and security systems.

The borrowing station, exchange station, shared charging cabinet and fixed DC power consumption system in the DC distribution station all have power sensors, and when the battery power is insufficient, they will automatically send a signal to the distribution platform to enable intelligent distribution.

The shared charging cabinet in the DC power distribution station realizes the charging demand of the photovoltaic battery through the discharge controller.

The fixed DC power consumption system in the DC distribution station can realize the purpose of directly charging the photovoltaic battery through the DC bus; when the photovoltaic battery is insufficient, its power sensor will send a signal, if the photovoltaic battery cannot be replaced in time, When the transmission power is reduced to the limit value, the traditional power supply mode of "AC-DC" will be activated by the controller for emergency use. The photovoltaic cells with insufficient power can be recovered and recharged, so that they can circulate infinitely in the photovoltaic DC power distribution system. Realized resource conservation, environmental protection, and promotion of sustainable development.

The distribution method of the photovoltaic DC power distribution system of the utility model is as follows: the photovoltaic power station is composed of solar photovoltaic power generation panels. When starting to work, the solar photovoltaic power generation When the battery is fully charged, the induction signal light of the storage box changes from red to green, and then transmits the signal to the distribution platform through the induction system, and the distribution platform performs intelligent distribution of photovoltaic cells to the DC distribution station according to the needs of users; When the power of the photovoltaic battery in the power station, shared charging cabinet, and fixed DC power system is insufficient, the sensor signal light will change from green to red, and then the sensor system will send a signal to the distribution platform, and the delivery staff can use the photovoltaic battery on the distribution platform The location and model are combined with the distribution of photovoltaic power stations for recycling and recharging.

Compared with the prior art, the utility model has advantages and beneficial effects as follows:

The utility model adopts the photovoltaic power station to directly store the electric energy generated by solar energy in multi-type photovoltaic cells, does not consider the problem of grid connection of photovoltaic power generation, reduces the cost of power generation system equipment and power generation, and solves the problem that the general DC power distribution system has a small application range. Long delivery time and unreasonable distribution and recycling of photovoltaic cells.

Description of drawings

Figure 1 is a schematic structural diagram of a photovoltaic DC power distribution system.

Figure 2 is a schematic diagram of the structure of a photovoltaic power station.

Fig. 3 is a schematic diagram of charging in a shared charging cabinet.

Fig. 4 is a schematic diagram of power consumption of a fixed direct current power consumption system.

1-photovoltaic power station, 2-distribution platform, 3-fully charged photovoltaic battery, 4-borrowing power station, 5-swapping power station, 6-shared charging cabinet, 7-fixed DC power system, 8-DC distribution station, 9 -Insufficient power photovoltaic cell, 10-photovoltaic module, 11-photovoltaic controller, 12-DC bus, 13-charge and discharge controller, 14-voltage regulator, 15-DC power supply bus.

Detailed ways

The utility model will be described in further detail below in conjunction with specific embodiments. It should be emphasized that the following descriptions are only illustrative, not intended to limit the scope of the present utility model and its application.

As shown in the accompanying drawing 1, the photovoltaic direct current distribution system includes a photovoltaic power station 1, a distribution platform 2, a fully charged photovoltaic cell 3, a direct current distribution station 8 and a photovoltaic cell 9 with insufficient electricity; the photovoltaic power station 1 will The electric energy generated by solar energy is stored in the fully charged photovoltaic cell 3, and the DC distribution station 8 is intelligently distributed through the distribution platform 2 according to the needs of users; the DC distribution station 8 includes a borrowing station 4, a replacement station 5, and a shared charging cabinet 6. Fixed DC power consumption system 7; the insufficient power photovoltaic cell 9 automatically displays or sends a signal of insufficient power to the distribution platform 2, and is recycled to the corresponding photovoltaic power station 1 for recharging after receiving the signal.

When starting to work, the solar photovoltaic power generation panel converts light energy into electrical energy and stores it in the fully charged photovoltaic cell. When the fully charged photovoltaic cell is fully charged, the induction signal light of the storage box changes from red to green, and then transmits a signal to the Distribution platform, the distribution platform carries out intelligent distribution of photovoltaic cells to the DC power distribution station according to the needs of users; when the power of photovoltaic cells in the borrowing power station, replacement station, shared charging cabinet, and fixed DC power system is insufficient, the power of the storage box The induction signal light changes from green to red, and then the induction system will send a signal to the distribution platform, where the delivery personnel can recycle and recharge according to the location and model of the photovoltaic cells and the distribution of photovoltaic power stations.

The above content is a further detailed description of the utility model in combination with specific example preferred implementation modes, and it cannot be assumed that the specific implementation of the utility model is limited to these descriptions. For those of ordinary skill in the technical field to which the utility model belongs, on the premise of not departing from the concept of the utility model, it can also make some substitutions or modifications to the described embodiments, and these substitutions or modifications should be Be deemed to belong to the protection scope of the present utility model.

Claims (6)

1. A photovoltaic direct current power distribution system, characterized in that: comprising a photovoltaic power station (1), a distribution platform (2), a fully charged photovoltaic cell (3), a direct current distribution station (8) and a photovoltaic cell with insufficient power (9 ); the photovoltaic power station (1) is a photovoltaic module (10) through a photovoltaic controller (11), a DC bus (12) and a charging and discharging controller (13) to store the electric energy generated by solar energy in a fully charged photovoltaic cell (3 ), the DC distribution station (8) is intelligently distributed through the distribution platform (2) according to the needs of users; the DC distribution station (8) includes a borrowing station (4), a replacement station (5), and a shared charging cabinet (6), fixed direct current power consumption system (7); described fixed direct current power consumption system (7) is fully electric photovoltaic battery (3) realizes its electric energy demand through direct current power supply busbar (15); described power shortage photovoltaic battery (9) Automatically display or send a signal of insufficient power to the distribution platform (2), and be recycled to the corresponding photovoltaic power station (1) for recharging after receiving the signal. 2. The photovoltaic DC power distribution system according to claim 1, characterized in that: the photovoltaic power station utilizes parking shed roofs, sunshade roofs, bus stations, bicycle rental roofs, balconies, community signs, and street lights. The photovoltaic power generation module charges the photovoltaic cells. 3. The photovoltaic direct current power distribution system according to claim 1, characterized in that: the fully charged photovoltaic cell (3) is charged by photovoltaic direct current generated by a photovoltaic power station (1). 4. The photovoltaic DC power distribution system according to claim 1, characterized in that: the borrowing power station, swapping power station, shared charging cabinet and fixed DC power consumption system in the DC power distribution station all have power sensors. 5. According to claim 1, the photovoltaic DC power distribution system is characterized in that: after the power sensor in the fixed DC power system sends a power shortage signal, if the photovoltaic battery cannot be replaced in time, the power transmission will be reduced to the limit The traditional power supply mode of "AC-DC" will be activated through the controller for emergency use. 6. The photovoltaic direct current power distribution system according to claim 1, characterized in that: the photovoltaic battery is a battery such as lithium polymer as a power storage unit.