CN102122845A - Network switching distribution automation measurement and control device - Google Patents
Network switching distribution automation measurement and control device Download PDFInfo
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- CN102122845A CN102122845A CN201110092682XA CN201110092682A CN102122845A CN 102122845 A CN102122845 A CN 102122845A CN 201110092682X A CN201110092682X A CN 201110092682XA CN 201110092682 A CN201110092682 A CN 201110092682A CN 102122845 A CN102122845 A CN 102122845A
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- 238000012545 processing Methods 0.000 claims abstract description 5
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- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 4
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- 230000015572 biosynthetic process Effects 0.000 claims description 3
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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
- 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 other network 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 interface respectively. 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 formula power distribution automation measure and control device, be applicable to the electric signal collection and the switch control of 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 influence 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 controller switching equipment and running technology thereof are divided into Artificial Control and automation control two big 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, the wide area protection demand to 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 switch cost height, requirement height to ambient condition conditions such as temperature, humidity, dusts, and to take special-purpose installing space, the waste resource, simultaneously exist wiring 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) to realize devices interconnect, be difficult to be applicable to the electric power transfer of high speed big data quantity.End is got up, and the prior art ubiquity the device structure complexity, and operation control difficulty is big, and safe and applicable is poor, the device resource waste, and power consumption is big, and interconnected performance is not enough, the outstanding shortcoming of the little grade of accommodation.
Summary of the invention:
The objective of the invention is to overcome the shortcoming that prior art exists, seek design a kind of network exchange formula power distribution automation measure and control device is provided, support the two master station communications of 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 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 acquisition circuit, digital input/output circuitry and power circuit; The core CPU circuit adopts the existing unit module, it is connected with CPU expanded circuit electrical information by communication interface, the peripheral interface of CPU expanded circuit is communicated with analog acquisition circuit and digital input/output circuitry dock electrical information respectively, numeral input/output circuitry and power circuit electric connection, the powered operation of implement device; The core CPU circuit constitutes the CPU expanded circuit by placing the parallel network chip butt joint on 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 buffer 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 buffer circuit; Its another network interface chip interactive mode also is connected with 1-100 driving buffer circuit and is communicated with the CPU expanded circuit structure of formation multiterminal control respectively with each self-corresponding switch network interface electrical information; 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 process isolation and drive circuit externally provide with the form of 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 one of them network interface chip of core CPU circuit, all the other interfaces of network exchanging chip according to demands of applications through isolate and the processing of driving electricity after with the form of RJ45 interface in return the machine interface externally provide; When two main websites are in the same network segment, adopt the different port of switch to realize; When two main websites are in not the same network segment, adopt independent network interfaces and exchange interface realization; Interconnected between multiple devices directly connects the network exchange interface of two equipment by grid line, the cascade of realization multiple devices; Solved 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 exchange machine circuit commonly used, be connected, externally provide the above port of two-way to connect simultaneously with a port in the device.
The present invention compared with prior art, the overall construction design novelty of its device, 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 a 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 in conjunction with the accompanying drawings below by embodiment.
Embodiment:
The agent structure of present embodiment comprises core CPU circuit 1, CPU expanded circuit 2, analog acquisition circuit 3, digital input/output circuitry 4 and power circuit 5, core CPU circuit 1 adopts the existing unit module, it is connected with CPU expanded circuit 2 electrical information by communication interface, the peripheral interface of CPU expanded circuit 2 is communicated with analog acquisition circuit 3 and digital input/output circuitry 4 dock electrical information respectively, numeral input/output circuitry 4 and power circuit 5 electric connections, the powered operation of implement device; Core CPU circuit 1 constitutes CPU expanded circuit 2 by placing parallel network chip 24 butt joints on the 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 buffer 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 buffer circuit 25; Its another network interface chip 24 interactive modes also are connected with 1-100 driving buffer circuit 25 and are communicated with the CPU expanded circuit structure of formation multiterminal control respectively with each self-corresponding switch network interface 22 electrical information; 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 process isolation and drive circuit externally provide with the form of 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 one of them network interface chip 24 of core CPU circuit 1, all the other interfaces of network exchanging chip 23 according to demands of applications through isolate and the processing of driving electricity after with the form of RJ45 interface in return machine interface 22 externally provide; During at the same network segment, adopt the different port of switch 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; Interconnected between multiple devices directly connects the network exchange interface of two equipment by grid line, the cascade of realization multiple devices; Solved 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 exchange machine circuit 23 commonly used, be connected, externally provide the above port of two-way to connect simultaneously with the interior network interface chip 24 of device.
The circuit that 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 acquisition circuit 3 is for being the custom circuit of 0 to 5V range signal with the external communication conversion of signals by voltage, current transformer; 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 for use is BCT WR24D15S5; Independent network interfaces 21 is network RJ45 interface slot with switch network interface 22; Network exchanging chip 23 adopts the general switch machine chip, and selecting model for use is AC526; Network interface chip 24 adopts W5100, realizes extension of network by the parallel port; Drive buffer circuit 25 and adopt Ethernet interface isolating transformer commonly used, realize electrical isolation.
The digital input/output circuitry 4 that 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 and import the core CPU circuit 1 of a plurality of pulse digit information supplying apparatus simultaneously and handle.
Claims (1)
1. network exchange formula power distribution automation measure and control device, it is characterized in that existing exchanger circuit is embedded into the funtion part of distribution power automation terminal inside as measure and control device, its agent structure comprises core CPU circuit, CPU expanded circuit, analog acquisition circuit, digital input/output circuitry and power circuit; The core CPU circuit adopts the existing unit module, it is connected with CPU expanded circuit electrical information by communication interface, the peripheral interface of CPU expanded circuit is communicated with analog acquisition circuit and digital input/output circuitry dock electrical information respectively, the powered operation of digital input/output circuitry and power circuit electric connection implement device; The core CPU circuit constitutes the CPU expanded circuit by placing the parallel network chip butt joint on 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 buffer 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 buffer circuit; Its another network interface chip interactive mode also is connected with 1-100 driving buffer circuit and is communicated with the CPU expanded circuit structure of formation multiterminal control respectively with each self-corresponding switch network interface electrical information; 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 process isolation and drive circuit externally provide with the form of 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 one of them network interface chip of core CPU circuit, all the other interfaces of network exchanging chip according to demands of applications through isolate and the processing of driving electricity after with the form of RJ45 interface in return the machine interface externally provide; When being in the same network segment, adopt two main websites the different port of switch to realize; When being in not the same network segment, adopt two main websites independent network interfaces and exchange interface realization; Interconnected between many table apparatus directly connects the network exchange interface of two measure and control devices by grid line, the cascade of many observing and controlling of realization; 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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| Publication Number | Publication Date |
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| CN102122845A true CN102122845A (en) | 2011-07-13 |
| CN102122845B CN102122845B (en) | 2013-01-23 |
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| CN201110092682XA Active CN102122845B (en) | 2011-04-01 | 2011-04-01 | Network switching distribution automation measurement and control device |
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Cited By (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 |
| CN103634143A (en) * | 2013-11-04 | 2014-03-12 | 天津汉柏信息技术有限公司 | Method for registering and managing 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 | Network system, control method, storage medium and program product |
Citations (3)
| 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 |
| WO2010072701A1 (en) * | 2008-12-23 | 2010-07-01 | Abb Research Ltd. | Power over ethernet in a redundant ring data network |
-
2011
- 2011-04-01 CN CN201110092682XA patent/CN102122845B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2821984Y (en) * | 2005-09-09 | 2006-09-27 | 东南大学 | Full network digital protector |
| WO2010072701A1 (en) * | 2008-12-23 | 2010-07-01 | Abb Research Ltd. | Power over ethernet in a redundant ring data network |
| 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 |
Cited By (5)
| 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 |
| CN103634143A (en) * | 2013-11-04 | 2014-03-12 | 天津汉柏信息技术有限公司 | Method for registering and managing exchange chip interface |
| 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 | Network system, control method, storage medium and program product |
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| Publication number | Publication date |
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| CN102122845B (en) | 2013-01-23 |
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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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Change date: 20180601 Contract record no.: 2013370000142 Assignor after: QINGDAO ITECHENE TECHNOLOGIES CO., LTD. Assignor before: Qingdao Qiancheng Electronics Co., Ltd. |
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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 |
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