CN102122845B - Network switching distribution automation measurement and control device - Google Patents
Network switching distribution automation measurement and control device Download PDFInfo
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- CN102122845B CN102122845B CN201110092682XA CN201110092682A CN102122845B CN 102122845 B CN102122845 B CN 102122845B CN 201110092682X A CN201110092682X A CN 201110092682XA CN 201110092682 A CN201110092682 A CN 201110092682A CN 102122845 B CN102122845 B CN 102122845B
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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
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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
- Y04S40/124—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 wired telecommunication networks or data transmission busses
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Abstract
The invention belongs to the technical field of power automation control and relates to a network switching distribution automation measurement and control device. A core central processing unit (CPU) circuit adopts the conventional unit module and is in electric information connection with a CPU expansion circuit through a communication interface; a peripheral interface of the CPU expansion circuit is in butted electric information communication with an analog quantity acquisition circuit and a digital input/output circuit respectively; the digital input/output circuit is electrically connected with a power circuit; the core CPU circuit is butted to form the CPU expansion circuit through a parallel network chip which is arranged on the CPU expansion circuit; and the core CPU circuit is connected in parallel with two network interface chips, wherein one network interface chip is communicated with an independent network interface by connecting a driving isolating circuit, and the othernetwork interface chip is interactively connected in parallel with a plurality of driving isolating circuits and is in electric information communication with a corresponding switch network interfacerespectively. The device is novel in structure, reasonable in technical route, safe and reliable to use, high in self-control capacity and high in network performance and saves resources and energy.
Description
Technical field:
The invention belongs to power automation control technology field, relate to a kind of network exchange type distribution automatic measure and control device, be applicable to electrical signal collection and the switch control of the equipments such as distribution system 10KV and following on-pole switch, ring main unit, switching station, switchgear house, transformer, by with the SCADA of main website system communication, realize power distribution automation observing and controlling operation.
Background technology:
At present, operation power occupies leading position to the impact of national economy, and electric power transmits and the using and control for the application of electric power and energy-conservationly have critical role and an effect of controller switching equipment.Existing power distribution equipment and running technology thereof are divided into Artificial Control and automation control two large classes, and the situation of automation control power equipment operation is in leading position substantially.Power distribution automation is swift and violent as the core development of intelligent grid, communication requirement to Distributing Terminal Assembly improves day by day, in operation power and control procedure, be accompanied by two master station communications, face protection, wide area protection to the demand of port, existing single port can not satisfy electric power transfer and the needs of communicating by letter; And existing simple dual network mouth is supported the situation of two master station communications, the interconnected private branch exchange system that then needs of its device cooperates, because the switch cost is high, to temperature, humidity, requiring of the ambient condition conditions such as dust is high, and to take special-purpose installing space, the waste resource, simultaneously exist wiring the problem such as to concentrate at technical elements, reducing gradually of its actual the field, and for the technology of existing distributed erection unit, usually adopt fieldbus (Echelon, CAN) realize devices interconnect, be difficult to be applicable to the electric power transfer of high speed big data quantity.End is got up, and it is complicated that the prior art ubiquity device structure, and operation control difficulty is large, and safe and applicable is poor, the device resource waste, and power consumption is large, and interconnected performance is inadequate, the outstanding shortcoming of the little grade of accommodation.
Summary of the invention:
The object of the invention is to overcome the shortcoming that prior art exists, seek design a kind of network exchange type distribution automatic measure and control device is provided, support the two master station communications of the many master station communications of same network segment and different segment, the Ethernet that satisfies simultaneously between operation power and control appliance is interconnected, replace fieldbus, improve the automatization level of distribution terminal, adapt to following operation power and the requirement of control system to communicating by letter.
To achieve these goals, the technical solution used in the present invention is that existing exchanger circuit is embedded into distribution power automation terminal inside, as a funtion part of device, its agent structure comprises core CPU circuit, CPU expanded circuit, analog quantity acquisition circuit, digital input/output circuitry and power circuit; The core CPU circuit adopts existing unit module, it is connected with CPU expanded circuit telecommunications breath by communication interface, the peripheral interface of CPU expanded circuit is communicated with analog quantity acquisition circuit and digital input/output circuitry dock telecommunications breath respectively, numeral input/output circuitry and power circuit electric connection, the powered operation of implement device; The core CPU circuit is by placing the parallel network chip docking on the CPU expanded circuit to consist of the CPU expanded circuit, and the agent structure of CPU expanded circuit comprises independent network interfaces, parallel exchange interface, network exchanging chip, network interface chip and parallel driving isolation circuit; The core CPU circuit is parallel to be connected to two network interface chips, and an one network interface chip is communicated with independent network interfaces by connecting a driving isolation circuit; Its another network interface chip interactive mode also is connected with 2-100 driving isolation circuit and is communicated with the CPU expanded circuit structure of formation multiterminal control with each self-corresponding exchange interface telecommunications breath respectively; The CPU expanded circuit provides power supply, analog quantity, digital quantity and communication interface circuit for the operation of core CPU circuit; External two network interface chips of core CPU circuit are realized the network support to two network segments, and one of them network interface chip externally provides through the form of driving isolation circuit with the RJ45 interface; In the CPU expanded circuit, embedded the network exchange circuit of prior art, the network exchanging chip of a network exchange circuit wherein port is connected with wherein another network interface chip of CPU expanded circuit, all the other interfaces of network exchanging chip according to the demand of using after isolation and the processing of driving electricity with the form of RJ45 interface in return the machine interface externally provide; When two main websites are in the same network segment, adopt different exchange interfaces to realize; When two main websites are in not the same network segment, adopt independent network interfaces and exchange interface realization; The interconnected network exchange interface that directly connects two equipment by grid line between multiple devices is realized the cascade of multiple devices; Solve the problem that adopts the private branch exchange system existence and replaced fieldbus to realize the full networked of communication; Possess 10M/100M Ethernet switch function or two network segment network communications capability; This device possesses a separate network mouth and two above switch network mouths; Separate network mouth and switch network mouth be not in the same network segment; Adopt network switch circuit commonly used, be connected with a port in the device, externally provide the above port of two-way to connect simultaneously.
The present invention compared with prior art, the overall construction design of its device is novel, the electroporation route is reasonable, install and use safe and reliablely, the operation self-control ability is good, and network performance is strong, save fixed resource and energy, can extensively replace the controller switching equipment of existing operation power and control.
Description of drawings:
Fig. 1 is complete machine agent structure schematic block diagram of the present invention.
Fig. 2 is the structural principle schematic block diagram of network C PU expanded circuit of the present invention.
Fig. 3 is the digital input/output circuitry schematic diagram of device of the present invention.
Embodiment:
Also be described further by reference to the accompanying drawings below by embodiment.
Embodiment:
The agent structure of the present embodiment comprises core CPU circuit 1, CPU expanded circuit 2, analog quantity acquisition circuit 3, digital input/output circuitry 4 and power circuit 5, core CPU circuit 1 adopts existing unit module, it is connected with CPU expanded circuit 2 telecommunications breath by communication interface, the peripheral interface of CPU expanded circuit 2 is communicated with analog quantity acquisition circuit 3 and digital input/output circuitry 4 dock telecommunications breath respectively, numeral input/output circuitry 4 and power circuit 5 electric connections, the powered operation of implement device; Core CPU circuit 1 is by placing parallel network chip 24 docking on the CPU expanded circuit 2 to consist of CPU expanded circuit 2, and the agent structure of CPU expanded circuit 2 comprises independent network interfaces 21, parallel exchange interface 22, network exchanging chip 23, network interface chip 24 and the driving isolation circuit 25 that walks abreast; Core CPU circuit 1 is parallel to be connected to two network interface chips 24, and an one network interface chip 24 is communicated with independent network interfaces 21 by connecting a driving isolation circuit 25; Its another network interface chip 24 interactive modes also are connected with 2-100 driving isolation circuit 25 and are communicated with the CPU expanded circuit structure of formation multiterminal control with each self-corresponding exchange interface 22 telecommunications breath respectively; CPU expanded circuit 2 provides power supply, analog quantity, digital quantity and communication interface circuit for the operation of core CPU circuit; Core CPU circuit 1 external two network interface chips are realized the network support to two network segments, and one of them network interface chip externally provides through the form of driving isolation circuit with RJ45 interface 21; In CPU expanded circuit 2, embed the network exchange circuit of prior art, network exchanging chip 23 a wherein port is connected with wherein another network interface chip 24 of CPU expanded circuit 2, all the other interfaces of network exchanging chip 23 according to the demand of using after isolation and the processing of driving electricity with the form of RJ45 interface in return machine interface 22 externally provide; During at the same network segment, adopt different exchange interfaces to realize in two main websites; During not at the same network segment, adopt independent network interfaces 21 and exchange interface to realize in two main websites; The interconnected network exchange interface that directly connects two equipment by grid line between multiple devices is realized the cascade of multiple devices; Solve the problem that adopts the private branch exchange system existence and replaced fieldbus to realize the full networked of communication; Possess 10M/100M Ethernet switch function or two network segment network communications capability; Possess a separate network mouth 21 and two above switch network mouths 22; Separate network mouth and switch network interface be not in the same network segment; Adopt network switch circuit 23 commonly used, be connected with the interior network interface chip 24 of device, externally provide the above port of two-way to connect simultaneously.
The circuit that the present embodiment relates to, chip and interface be commercially available or industry in know design and product, wherein core CPU circuit 1 is for adopting the central processing unit minimum system (Blackfin537) that possesses network support function; Analog quantity acquisition circuit 3 is for being converted to the external communication signal by voltage, current transformer the custom circuit of 0 to 5V range signal; Numeral input/output circuitry 4 adopts device inside that power supply is provided, and connects loop stimulated luminescence diode mode by external connector and realizes the quantity of state collection; Power circuit 5 adopts the DC/DC module, and selecting model is BCT WR24D15S5; Independent network interfaces 21 is network RJ45 interface slot with switch network interface 22; Network exchanging chip 23 adopts the universal exchange chip, and selecting model is AC526; Network interface chip 24 adopts W5100, realizes extension of network by the parallel port; Driving isolation circuit 25 adopts Ethernet interface isolating transformer commonly used, realizes electrical isolation.
The digital input/output circuitry 4 that the present embodiment relates to adopts existing commercially available relevant finished product circuit structure, resistance wherein, electric capacity, crystal diode, transistor all adopt conventional model and parameter value, and internal electric source 26 wherein is 24 volts of dc power supplies; Numeral input/output circuitry 4 adopts the identical quantity of state input of a plurality of structures of parallel-connection structure, can gather simultaneously and input a plurality of pulse digit information and process for the core CPU circuit 1 of device.
Claims (1)
1. network exchange type distribution automatic measure and control device, it is characterized in that existing exchanger circuit is embedded into distribution power automation terminal inside as a funtion part of measure and control device, its agent structure comprises core CPU circuit, CPU expanded circuit, analog quantity acquisition circuit, digital input/output circuitry and power circuit; The core CPU circuit adopts existing unit module, it is connected with CPU expanded circuit telecommunications breath by communication interface, the peripheral interface of CPU expanded circuit is communicated with the powered operation of digital input/output circuitry and power circuit electric connection implement device with analog quantity acquisition circuit and digital input/output circuitry dock telecommunications breath respectively; The core CPU circuit is by placing the parallel network chip docking on the CPU expanded circuit to consist of the CPU expanded circuit, and the CPU expanded circuit comprises independent network interfaces, parallel exchange interface, network exchanging chip, network interface chip and parallel driving isolation circuit; The core CPU circuit is parallel to be connected to two network interface chips, and an one network interface chip is communicated with independent network interfaces by connecting a driving isolation circuit; Its another network interface chip interactive mode also is connected with 2-100 driving isolation circuit and is communicated with the CPU expanded circuit structure of formation multiterminal control with each self-corresponding exchange interface telecommunications breath respectively; The CPU expanded circuit provides power supply, analog quantity, digital quantity and communication interface circuit for the operation of core CPU circuit; External two network interface chips of core CPU circuit are realized the network support to two network segments, and one of them network interface chip externally provides through the form of driving isolation circuit with the RJ45 interface; In the CPU expanded circuit, embedded the network exchange circuit of prior art, the network exchanging chip of a network exchange circuit wherein port is connected with wherein another network interface chip of CPU expanded circuit, all the other interfaces of network exchanging chip according to the demand of using after isolation and the processing of driving electricity with the form of RJ45 interface in return the machine interface externally provide; When being in the same network segment, adopt two main websites different exchange interfaces to realize; When being in not the same network segment, adopt two main websites independent network interfaces and exchange interface realization; The interconnected network exchange interface that directly connects two measure and control devices by grid line between many table apparatus is realized the cascade of many observing and controlling; This device possesses 10M/100M Ethernet switch function or two network segment network communications capability; Possess an independent network interfaces and two above exchange interfaces; Independent network interfaces and exchange interface be not in the same network segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110092682XA CN102122845B (en) | 2011-04-01 | 2011-04-01 | Network switching distribution automation measurement and control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110092682XA CN102122845B (en) | 2011-04-01 | 2011-04-01 | Network switching distribution automation measurement and control device |
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| CN102122845A CN102122845A (en) | 2011-07-13 |
| CN102122845B true CN102122845B (en) | 2013-01-23 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102946147A (en) * | 2012-12-06 | 2013-02-27 | 广州南方电力集团科技发展有限公司 | Integrated terminal for integrated supervision of intelligent power distribution room |
| CN103634143B (en) * | 2013-11-04 | 2016-08-31 | 天津汉柏信息技术有限公司 | A kind of method registering and manage exchange chip interface |
| CN109714215A (en) * | 2018-12-30 | 2019-05-03 | 国网北京市电力公司 | Distribution Network Communication method and system |
| CN114205228A (en) * | 2021-11-29 | 2022-03-18 | 通号城市轨道交通技术有限公司 | A network system, control method, storage medium and program product |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2821984Y (en) * | 2005-09-09 | 2006-09-27 | 东南大学 | Full network digital protector |
| CN101499639A (en) * | 2009-01-24 | 2009-08-05 | 北京清电华力电气自动化科技有限公司 | Relay protection and measurement integrated apparatus with multiple communication interfaces integrated |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2202914A1 (en) * | 2008-12-23 | 2010-06-30 | ABB Research Ltd. | Power over ethernet in a redundant ring data network |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2821984Y (en) * | 2005-09-09 | 2006-09-27 | 东南大学 | Full network digital protector |
| CN101499639A (en) * | 2009-01-24 | 2009-08-05 | 北京清电华力电气自动化科技有限公司 | Relay protection and measurement integrated apparatus with multiple communication interfaces integrated |
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Application publication date: 20110713 Assignee: Hangzhou Techen Hongtai Electric Power Science & Technology Co., Ltd. Assignor: Qingdao Qiancheng Electronics Co., Ltd. Contract record no.: 2013370000142 Denomination of invention: Network switching distribution automation measurement and control device Granted publication date: 20130123 License type: Exclusive License Record date: 20130609 |
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Address after: 266061 Shandong Province, Qingdao city Laoshan District Songling Road No. 169 Patentee after: QINGDAO ITECHENE TECHNOLOGIES CO., LTD. Address before: 266061 Shandong Province, Qingdao city Laoshan District Songling Road No. 169 Patentee before: Qingdao Qiancheng Electronics Co., Ltd. |
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Assignee: Hangzhou Techen Hongtai Electric Power Science & Technology Co., Ltd. Assignor: QINGDAO ITECHENE TECHNOLOGIES CO., LTD. Contract record no.: 2013370000142 Date of cancellation: 20180604 |
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Application publication date: 20110713 Assignee: Hangzhou Techen Hongtai Electric Power Science & Technology Co., Ltd. Assignor: QINGDAO ITECHENE TECHNOLOGIES CO., LTD. Contract record no.: 2018370010007 Denomination of invention: Network switching distribution automation measurement and control device Granted publication date: 20130123 License type: Exclusive License Record date: 20180625 |