CN104300676A - On-line monitoring system suitable for capacitive device of intelligent substation - Google Patents
On-line monitoring system suitable for capacitive device of intelligent substation Download PDFInfo
- Publication number
- CN104300676A CN104300676A CN201410443861.7A CN201410443861A CN104300676A CN 104300676 A CN104300676 A CN 104300676A CN 201410443861 A CN201410443861 A CN 201410443861A CN 104300676 A CN104300676 A CN 104300676A
- Authority
- CN
- China
- Prior art keywords
- arm
- data
- ied
- communication
- sub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- Y04S10/16—Electric power substations
-
- 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
- Y04S10/18—Systems supporting electrical power generation, transmission or distribution using switches, relays or circuit breakers, e.g. intelligent electronic devices [IED]
-
- 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
-
- 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
Abstract
The invention discloses an on-line monitoring system suitable for a capacitive device of an intelligent substation. Terminals are connected with an IED through an RS485 bus, and the IED is used for processing and packaging data and uploading the data to a monitoring host through an IEC 61850 protocol. To facilitate upgrading and improving of a traditional substation, the IED is an independent module and can be independently used. According to the on-line monitoring system, the efficient and quick digital signal processing capacity of an ARM processor and a sub-ARM chip is fully utilized. Synchronous triggering of the field monitoring terminals at different places is achieved through a 485 bus command, the synchronization error is smaller than 2 NS, and the precision of system measuring is greatly improved. Instruction transmission and data communication between a capacitive device field monitoring unit and the IED are achieved through the RS485 wired transmission mode, the interference problem of electromagnetic wireless transmission under the high-voltage environment of the substation is solved, and the reliability and real-time performance of data transmission are guaranteed.
Description
Technical field:
The present invention is applicable to intelligent substation and realizes equipment and monitor continuously, and during the transformation of traditional intelligent substationization, and on-Line Monitor Device is from process layer, wall to the information transmission of station level.
Background technology:
1, IEC61850 open communication standard
2, singlechip technology
3, LINUX operating system and programming technique
4, RS485 bus transfer agreement.
Summary of the invention:
The present invention be each terminal of intelligent substation capacitive equipment on-line monitoring adopt RS485 bus mode and IED interconnected, IED processes data, packs to be uploaded to monitoring host computer with IEC61850 agreement.Simultaneously for convenience of traditional transformer station upgrading, IED is a standalone module, can be used alone.
1, intelligent substation equipment on-line monitoring system architecture
Transformer Substation Online Monitoring System can be divided into station level, wall and process layer.Process layer mainly completes to sample with primary equipment switching value I/O, analog quantity and the function such as transmission of control command; Wall is made up of intelligent electronic device (IED), completes the transmission of transmission to station level control command and process layer information, and the data analysis that monitoring terminal is collected and storage; Station level realizes the management function such as wall, process layer devices, and completes and the communicating of control centre and man-machine interface etc.
According to transformer substation system structure, equipment on-line monitoring device by RS485 bus and system IED interconnected.The workflow of whole system is as follows: monitoring host computer server sends acquisition instructions, passes to each monitor terminal through IED by RS485.After each terminal receives acquisition instructions, gather current signal in the same time.After each terminal data gathers, image data was passed IED by RS485, and IED processes data, and packing is uploaded to monitoring host computer with IEC61850 agreement.
2 equipment on-line monitoring IED
System IED adopts the sub-ARM dual processor of ARM+, has very high data acquisition, management and analysis ability.Different CPU is responsible for different task, ensures that each link is efficiently carried out, can realize the high speed of information, stable transfer, carries out control in real time more accurate to equipment state.The function that IED mainly realizes has:
Communication function, the acquisition of the Monitoring Data that receiving equipment on-Line Monitor Device collects and transfer station control stratum server;
To the data analysis that monitoring terminal collects, and fault message is stored and local display.
Embed IEC61850 agreement, realize the information sharing of transformer station and the interoperability of equipment.
The hardware of 2.1IED
IED is as the bay device in transformer station, the acquisition receiving station level in real time accurately is not only needed also to be handed down to process layer monitoring device in time, the data also process layer will uploaded beam back control layer in time, analyze and early warning the abnormal data that equipment is uploaded.In order to realize high speed and the real-time of system IED operation, the sub-ARM dual-CPU architecture of this system ARM+ is hardware core.ARM adopts ARM9 family chip, can the hardware device such as keyboard, liquid crystal, ethernet communication of additional peripheral, in order to complete management and the control of whole system.ARM function comprises and sends instruction to sub-ARM, requires return data, processes further data, stores and show, and with the communication of sub-ARM and host computer.Utilize the feature of the high-speed computation of sub-ARM and multiple On-Chip peripheral to complete issuing acquisition, and carry out computation and analysis to gathering the data come, the request of simultaneously real-time response ARM, sends to ARM by the result of data processing.The communication of sub-ARM and ARM adopts SPI communication.
2.1.1 power module
IED power unit adopts AC/DC power supply chip, and Main Function is 5V and 12V voltage for subsequent use by alternating current 220V voltage transitions.5V voltage is converted to 3.3V by linear voltage stabilization chip MIC29502BU, is supplied to other electricity consumption device normal power supplies on CAN network interface circuit, ethernet network interface circuit and IED.3.3V voltage regulates chip LM1117-ADJ to be converted to 1.5V and 1.9V by linear voltage, gives sub-ARM kernel and WIFI interface circuit supply respectively.3.3V voltage provides 5V insulating power supply to power to 485 network interface circuits by insulating power supply chip B0305.This design is the key of this system, and the good supply module of part isolation design is from outside electromagnetic interference.
2.1.2 SPI communication
Communication modes between master-slave cpu can have 3 kinds: SPIHPI and dual port RAM.Within the system, sub-ARM does not have HPI functional module, and SPI dual port RAM of comparing is more stable and rapidly, so adopt SPI communication modes between master-slave cpu, whole system can be made more reliable, efficient.
Specific works flow process is as follows: ARM sends signal and carrys out log-on data transmission, and sub-ARM receives data by interrupt mode, when receiving complete control frame, first the validity of control frame is checked, for effective control frame, first close SPI and interrupt, process accordingly simultaneously.After processing, then open SPI interruption and ARM transmission data.ARM is for invalid Frame and time-out error, and will respond error code and require to retransmit, splitting abnormal data will start warning function.
2.2 IED Software for Designs
This system adopt dual processors, primary and secondary structure, different CPU bears different tasks, based on ARM, sub-ARM be from.ARM embedded in LINUX operating system, and ARM Software for Design focuses on the stability of man-machine interface and system; On sub-ARM Software for Design, adopt c program design language, by the CCS3.3 programming development that develops software of TI company, and then ensure that whole software systems and communication Design have stronger real-time.
Host A RM starts poll function according to configuration file, and extract according to the communication protocol drafted in advance to the order of the terminal equipment that will gather and issue, intelligent terminal is transmitted to after the significance bit of order being intercepted after sub-ARM obtains order, the data that intelligent terminal returns carry out resolving according to agreement in sub-ARM and the calculating of being correlated with to different data is integrated, then encapsulation is uploaded to ARM.Be further processed and communication.
3 IEC61850 protocol realization
IEC61850 is the communication standard of an opening, and it has the feature of open system, can realize seamless link at IED equipment room.IEC61850 be first about electric substation automation system than more complete communication standard system, clearly propose the configuration management of information layered, feasible system, method that object-oriented, employing map and concrete network is independent, data object unification mode, meet the requirement adopting Internet Transmission to set up seamless communication system, become the basis of seamless communication system transport protocol, avoid loaded down with trivial details protocol conversion, achieve the interoperability between intelligent electronic device IED.
The standard that IED adopts IEC61850 to provide carries out model to system IED, and got up by software contacts in the server of station level, the IED of wall and on-Line Monitor Device by these models, and then achieve the communication between process layer, bay level IED and between station level server.
Logical node is data model basic in IEC61850, and data model have expressed data type, which data needs communication and these data how to communicate.Wherein comprise again certain data object, and data object is made up of corresponding data attribute.IED application embedded ethernet, make it can without CPU, communication unit or the intermediate link such as conversion unit of protocol, gateway, directly be connected with electric substation automation system network, when control of standing also adopts IEC61850, not only can save the design of whole system, the debugging maintenance time can also be reduced.
The present invention takes full advantage of the efficient digital signal processing capability fast of arm processor and sub-ARM chip.The strange land adopting 485 bus line commands to realize each field monitoring terminal is synchronously triggered, and its synchronous error is less than 2NS, substantially increases the precision of systematic survey.Adopt the mode of RS485 wire transmission to realize command between capacitive apparatus field monitoring unit and IED and data communication, overcome the interference problem of the electromagnetic wireless transmission under transformer station's hyperbaric environment, ensure reliability and the real-time of transfer of data.Its major function of IED has been the data communication with device context monitoring means and host computer, and its powerful real-time monitoring capacity and the stable communication capacity of high speed, efficiently, reliably can realize equipment on-line monitoring work.Xing 220kV collects Transfomer Substation Reconstruction one year over, operational excellence, meets onsite application requirement completely.Result shows, this design accurately can record substation equipment on-line operation situation, provides reliable guarantee for substation safety runs.
Accompanying drawing illustrates:
Fig. 1 is substation equipment on-line monitoring system framework map of the present invention;
Fig. 2 is the system hardware structure figure of IED of the present invention;
Fig. 3 is the power module figure of IED of the present invention;
Fig. 4 is IED software flow pattern of the present invention;
Fig. 5 is the hierarchical mode figure of capacitive apparatus IED of the present invention.
Embodiment:
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
1, intelligent substation equipment on-line monitoring system architecture
Transformer Substation Online Monitoring System can be divided into station level, wall and process layer.Process layer mainly completes to sample with primary equipment switching value I/O, analog quantity and the function such as transmission of control command; Wall is made up of intelligent electronic device (IED), completes the transmission of transmission to station level control command and process layer information, and the data analysis that monitoring terminal is collected and storage; Station level realizes the management function such as wall, process layer devices, and completes and the communicating of control centre and man-machine interface etc.
According to transformer substation system structure, substation equipment on-line monitoring system framework is as shown in Figure 1 proposed.In Fig. 1, double-head arrow indicates that data double-way transmits.Equipment on-line monitoring device by RS485 bus and system IED interconnected.The workflow of whole system is as follows: monitoring host computer server sends acquisition instructions, passes to each monitor terminal through IED by RS485.After each terminal receives acquisition instructions, gather current signal in the same time.After each terminal data gathers, image data was passed IED by RS485, and IED processes data, and packing is uploaded to monitoring host computer with IEC61850 agreement.
2 equipment on-line monitoring IED
System IED adopts the sub-ARM dual processor of ARM+, has very high data acquisition, management and analysis ability.Different CPU is responsible for different task, ensures that each link is efficiently carried out, can realize the high speed of information, stable transfer, carries out control in real time more accurate to equipment state.The function that IED mainly realizes has:
Communication function, the acquisition of the Monitoring Data that receiving equipment on-Line Monitor Device collects and transfer station control stratum server;
To the data analysis that monitoring terminal collects, and fault message is stored and local display.
Embed IEC61850 agreement, realize the information sharing of transformer station and the interoperability of equipment.
The hardware of 2.1IED
IED is as the bay device in transformer station, the acquisition receiving station level in real time accurately is not only needed also to be handed down to process layer monitoring device in time, the data also process layer will uploaded beam back control layer in time, analyze and early warning the abnormal data that equipment is uploaded.In order to realize high speed and the real-time of system IED operation, the sub-ARM dual-CPU architecture of this system ARM+ is hardware core.ARM adopts ARM9 family chip, can the hardware device such as keyboard, liquid crystal, ethernet communication of additional peripheral, in order to complete management and the control of whole system.ARM function comprises and sends instruction to sub-ARM, requires return data, processes further data, stores and show, and with the communication of sub-ARM and host computer.Utilize the feature of the high-speed computation of sub-ARM and multiple On-Chip peripheral to complete issuing acquisition, and carry out computation and analysis to gathering the data come, the request of simultaneously real-time response ARM, sends to ARM by the result of data processing.The communication of sub-ARM and ARM adopts SPI communication.System hardware structure is shown in Fig. 2.
2.1.1 power module
Power module is shown in Fig. 3.
IED power unit adopts AC/DC power supply chip, and Main Function is 5V and 12V voltage for subsequent use by alternating current 220V voltage transitions.5V voltage is converted to 3.3V by linear voltage stabilization chip MIC29502BU, is supplied to other electricity consumption device normal power supplies on CAN network interface circuit, ethernet network interface circuit and IED.3.3V voltage regulates chip LM1117-ADJ to be converted to 1.5V and 1.9V by linear voltage, gives sub-ARM kernel and WIFI interface circuit supply respectively.3.3V voltage provides 5V insulating power supply to power to 485 network interface circuits by insulating power supply chip B0305.This design is the key of this system, and the good supply module of part isolation design is from outside electromagnetic interference.
2.1.2 SPI communication
Communication modes between master-slave cpu can have 3 kinds: SPIHPI and dual port RAM.Within the system, sub-ARM does not have HPI functional module, and SPI dual port RAM of comparing is more stable and rapidly, so adopt SPI communication modes between master-slave cpu, whole system can be made more reliable, efficient.
Specific works flow process is as follows: ARM sends signal and carrys out log-on data transmission, and sub-ARM receives data by interrupt mode, when receiving complete control frame, first the validity of control frame is checked, for effective control frame, first close SPI and interrupt, process accordingly simultaneously.After processing, then open SPI interruption and ARM transmission data.ARM is for invalid Frame and time-out error, and will respond error code and require to retransmit, splitting abnormal data will start warning function.
2.2 IED Software for Designs
This system adopt dual processors, primary and secondary structure, different CPU bears different tasks, based on ARM, sub-ARM be from.ARM embedded in LINUX operating system, and ARM Software for Design focuses on the stability of man-machine interface and system; On sub-ARM Software for Design, adopt c program design language, by the CCS3.3 programming development that develops software of TI company, and then ensure that whole software systems and communication Design have stronger real-time.
Host A RM starts poll function according to configuration file, and extract according to the communication protocol drafted in advance to the order of the terminal equipment that will gather and issue, intelligent terminal is transmitted to after the significance bit of order being intercepted after sub-ARM obtains order, the data that intelligent terminal returns carry out resolving according to agreement in sub-ARM and the calculating of being correlated with to different data is integrated, then encapsulation is uploaded to ARM.Be further processed and communication.Software flow is shown in Fig. 4.
3 IEC61850 protocol realization
IEC61850 is the communication standard of an opening, and it has the feature of open system, can realize seamless link at IED equipment room.IEC61850 be first about electric substation automation system than more complete communication standard system, clearly propose the configuration management of information layered, feasible system, method that object-oriented, employing map and concrete network is independent, data object unification mode, meet the requirement adopting Internet Transmission to set up seamless communication system, become the basis of seamless communication system transport protocol, avoid loaded down with trivial details protocol conversion, achieve the interoperability between intelligent electronic device IED.
The standard that IED adopts IEC61850 to provide carries out model to system IED, and got up by software contacts in the server of station level, the IED of wall and on-Line Monitor Device by these models, and then achieve the communication between process layer, bay level IED and between station level server.The hierarchical mode of capacitive apparatus IED is shown in Fig. 5.
Logical node is data model basic in IEC61850, and data model have expressed data type, which data needs communication and these data how to communicate.Wherein comprise again certain data object, and data object is made up of corresponding data attribute.IED application embedded ethernet, make it can without CPU, communication unit or the intermediate link such as conversion unit of protocol, gateway, directly be connected with electric substation automation system network, when control of standing also adopts IEC61850, not only can save the design of whole system, the debugging maintenance time can also be reduced.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (1)
1. be applicable to an on-line monitoring system for intelligent substation capacitive equipment, it is characterized in that: specifically comprise with lower part:
1), intelligent substation equipment on-line monitoring system architecture
Transformer Substation Online Monitoring System can be divided into station level, wall and process layer.Process layer mainly completes to sample with primary equipment switching value I/O, analog quantity and the function such as transmission of control command; Wall is made up of intelligent electronic device (IED), completes the transmission of transmission to station level control command and process layer information, and the data analysis that monitoring terminal is collected and storage; Station level realizes the management function such as wall, process layer devices, and completes and the communicating of control centre and man-machine interface etc.
According to transformer substation system structure, equipment on-line monitoring device by RS485 bus and system IED interconnected.The workflow of whole system is as follows: monitoring host computer server sends acquisition instructions, passes to each monitor terminal through IED by RS485.After each terminal receives acquisition instructions, gather current signal in the same time.After each terminal data gathers, image data was passed IED by RS485, and IED processes data, and packing is uploaded to monitoring host computer with IEC61850 agreement.
2) equipment on-line monitoring IED
System IED adopts the sub-ARM dual processor of ARM+, has very high data acquisition, management and analysis ability.Different CPU is responsible for different task, ensures that each link is efficiently carried out, can realize the high speed of information, stable transfer, carries out control in real time more accurate to equipment state.The function that IED mainly realizes has:
Communication function, the acquisition of the Monitoring Data that receiving equipment on-Line Monitor Device collects and transfer station control stratum server;
To the data analysis that monitoring terminal collects, and fault message is stored and local display.
Embed IEC61850 agreement, realize the information sharing of transformer station and the interoperability of equipment.
2.1) hardware of IED
IED is as the bay device in transformer station, the acquisition receiving station level in real time accurately is not only needed also to be handed down to process layer monitoring device in time, the data also process layer will uploaded beam back control layer in time, analyze and early warning the abnormal data that equipment is uploaded.In order to realize high speed and the real-time of system IED operation, the sub-ARM dual-CPU architecture of this system ARM+ is hardware core.ARM adopts ARM9 family chip, can the hardware device such as keyboard, liquid crystal, ethernet communication of additional peripheral, in order to complete management and the control of whole system.ARM function comprises and sends instruction to sub-ARM, requires return data, processes further data, stores and show, and with the communication of sub-ARM and host computer.Utilize the feature of the high-speed computation of sub-ARM and multiple On-Chip peripheral to complete issuing acquisition, and carry out computation and analysis to gathering the data come, the request of simultaneously real-time response ARM, sends to ARM by the result of data processing.The communication of sub-ARM and ARM adopts SPI communication.
2.1.1) power module
IED power unit adopts AC/DC power supply chip, and Main Function is 5V and 12V voltage for subsequent use by alternating current 220V voltage transitions.5V voltage is converted to 3.3V by linear voltage stabilization chip MIC29502BU, is supplied to other electricity consumption device normal power supplies on CAN network interface circuit, ethernet network interface circuit and IED.3.3V voltage regulates chip LM1117-ADJ to be converted to 1.5V and 1.9V by linear voltage, gives sub-ARM kernel and WIFI interface circuit supply respectively.3.3V voltage provides 5V insulating power supply to power to 485 network interface circuits by insulating power supply chip B0305.This design is the key of this system, and the good supply module of part isolation design is from outside electromagnetic interference.
2.1.2) SPI communication
Communication modes between master-slave cpu can have 3 kinds: SPIHPI and dual port RAM.Within the system, sub-ARM does not have HPI functional module, and SPI dual port RAM of comparing is more stable and rapidly, so adopt SPI communication modes between master-slave cpu, whole system can be made more reliable, efficient.
Specific works flow process is as follows: ARM sends signal and carrys out log-on data transmission, and sub-ARM receives data by interrupt mode, when receiving complete control frame, first the validity of control frame is checked, for effective control frame, first close SPI and interrupt, process accordingly simultaneously.After processing, then open SPI interruption and ARM transmission data.ARM is for invalid Frame and time-out error, and will respond error code and require to retransmit, splitting abnormal data will start warning function.
2.2) IED Software for Design
This system adopt dual processors, primary and secondary structure, different CPU bears different tasks, based on ARM, sub-ARM be from.ARM embedded in LINUX operating system, and ARM Software for Design focuses on the stability of man-machine interface and system; On sub-ARM Software for Design, adopt c program design language, by the CCS3.3 programming development that develops software of TI company, and then ensure that whole software systems and communication Design have stronger real-time.
Host A RM starts poll function according to configuration file, and extract according to the communication protocol drafted in advance to the order of the terminal equipment that will gather and issue, intelligent terminal is transmitted to after the significance bit of order being intercepted after sub-ARM obtains order, the data that intelligent terminal returns carry out resolving according to agreement in sub-ARM and the calculating of being correlated with to different data is integrated, then encapsulation is uploaded to ARM.Be further processed and communication.
3) IEC61850 protocol realization
IEC61850 is the communication standard of an opening, and it has the feature of open system, can realize seamless link at IED equipment room.IEC61850 be first about electric substation automation system than more complete communication standard system, clearly propose the configuration management of information layered, feasible system, method that object-oriented, employing map and concrete network is independent, data object unification mode, meet the requirement adopting Internet Transmission to set up seamless communication system, become the basis of seamless communication system transport protocol, avoid loaded down with trivial details protocol conversion, achieve the interoperability between intelligent electronic device IED.
The standard that IED adopts IEC61850 to provide carries out model to system IED, and got up by software contacts in the server of station level, the IED of wall and on-Line Monitor Device by these models, and then achieve the communication between process layer, bay level IED and between station level server.
Logical node is data model basic in IEC61850, and data model have expressed data type, which data needs communication and these data how to communicate.Wherein comprise again certain data object, and data object is made up of corresponding data attribute.IED application embedded ethernet, make it can without CPU, communication unit or the intermediate link such as conversion unit of protocol, gateway, directly be connected with electric substation automation system network, when control of standing also adopts IEC61850, not only can save the design of whole system, the debugging maintenance time can also be reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410443861.7A CN104300676A (en) | 2014-09-02 | 2014-09-02 | On-line monitoring system suitable for capacitive device of intelligent substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410443861.7A CN104300676A (en) | 2014-09-02 | 2014-09-02 | On-line monitoring system suitable for capacitive device of intelligent substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104300676A true CN104300676A (en) | 2015-01-21 |
Family
ID=52320303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410443861.7A Pending CN104300676A (en) | 2014-09-02 | 2014-09-02 | On-line monitoring system suitable for capacitive device of intelligent substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104300676A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105116757A (en) * | 2015-07-23 | 2015-12-02 | 国网四川省电力公司电力科学研究院 | IEC 61850/MMS simulation method of concurrent signals of multiple devices |
| CN105528258A (en) * | 2015-12-11 | 2016-04-27 | 中国航空工业集团公司西安航空计算技术研究所 | Fault isolated multi-application sharing input/output interface component |
| CN106506591A (en) * | 2016-09-28 | 2017-03-15 | 华北电力大学 | System is collected based on the intelligent substation Condition Monitoring Data of multi-layer hybrid network |
| CN106874235A (en) * | 2017-02-09 | 2017-06-20 | 北京开疆智能自动化科技有限公司 | A kind of simulation DPRAM communication systems and method based on SPI serial links |
| CN107167684A (en) * | 2017-05-27 | 2017-09-15 | 国网浙江省电力公司电力科学研究院 | A kind of measuring system applied to transformer multimode amount live detection technology |
| CN107608204A (en) * | 2017-09-29 | 2018-01-19 | 上海微程电气设备有限公司 | Redundancy communication controller based on arm processor |
| CN109917222A (en) * | 2019-03-06 | 2019-06-21 | 湖北工业大学 | A kind of capacitance component is comprehensive to be monitored on-line and health status diagnostic device and method |
| CN110989418A (en) * | 2019-11-04 | 2020-04-10 | 苏州智电节能科技有限公司 | Data acquisition system based on RS485 communication and working method thereof |
| CN112886705A (en) * | 2019-11-29 | 2021-06-01 | 北京天诚同创电气有限公司 | Controller of micro-grid fault recording device and fault recording method |
| CN117457060A (en) * | 2023-12-22 | 2024-01-26 | 力瑞信（深圳）科技有限公司 | STB (set top box) board of solid state disk mass production test control equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255394A (en) * | 2011-08-08 | 2011-11-23 | 青岛特锐德电气股份有限公司 | Digital intelligent box-type power transformation device |
| CN202206427U (en) * | 2011-08-10 | 2012-04-25 | 华北电网有限公司唐山供电公司 | Novel intelligent substation breaker intelligent electronic device (IED) based on advanced reduced instruction set computer machine (ARM) and digital signal processor (DSP) |
-
2014
- 2014-09-02 CN CN201410443861.7A patent/CN104300676A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255394A (en) * | 2011-08-08 | 2011-11-23 | 青岛特锐德电气股份有限公司 | Digital intelligent box-type power transformation device |
| CN202206427U (en) * | 2011-08-10 | 2012-04-25 | 华北电网有限公司唐山供电公司 | Novel intelligent substation breaker intelligent electronic device (IED) based on advanced reduced instruction set computer machine (ARM) and digital signal processor (DSP) |
Non-Patent Citations (1)
| Title |
|---|
| 王红亮等: "智能变电站电容型设备介质损耗在线监测IED设计", 《高压电器》, vol. 48, no. 1, 31 January 2012 (2012-01-31) * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105116757A (en) * | 2015-07-23 | 2015-12-02 | 国网四川省电力公司电力科学研究院 | IEC 61850/MMS simulation method of concurrent signals of multiple devices |
| CN105528258B (en) * | 2015-12-11 | 2018-12-25 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of more Application share input/output interface components of Fault Isolation |
| CN105528258A (en) * | 2015-12-11 | 2016-04-27 | 中国航空工业集团公司西安航空计算技术研究所 | Fault isolated multi-application sharing input/output interface component |
| CN106506591A (en) * | 2016-09-28 | 2017-03-15 | 华北电力大学 | System is collected based on the intelligent substation Condition Monitoring Data of multi-layer hybrid network |
| CN106874235A (en) * | 2017-02-09 | 2017-06-20 | 北京开疆智能自动化科技有限公司 | A kind of simulation DPRAM communication systems and method based on SPI serial links |
| CN106874235B (en) * | 2017-02-09 | 2020-11-03 | 北京开疆智能自动化科技有限公司 | Analog DPRAM communication system and method based on SPI serial link |
| CN107167684A (en) * | 2017-05-27 | 2017-09-15 | 国网浙江省电力公司电力科学研究院 | A kind of measuring system applied to transformer multimode amount live detection technology |
| CN107608204A (en) * | 2017-09-29 | 2018-01-19 | 上海微程电气设备有限公司 | Redundancy communication controller based on arm processor |
| CN109917222A (en) * | 2019-03-06 | 2019-06-21 | 湖北工业大学 | A kind of capacitance component is comprehensive to be monitored on-line and health status diagnostic device and method |
| CN109917222B (en) * | 2019-03-06 | 2020-12-18 | 湖北工业大学 | Device and method for comprehensive online monitoring and health state diagnosis of capacitor assembly |
| CN110989418A (en) * | 2019-11-04 | 2020-04-10 | 苏州智电节能科技有限公司 | Data acquisition system based on RS485 communication and working method thereof |
| CN112886705A (en) * | 2019-11-29 | 2021-06-01 | 北京天诚同创电气有限公司 | Controller of micro-grid fault recording device and fault recording method |
| CN117457060A (en) * | 2023-12-22 | 2024-01-26 | 力瑞信（深圳）科技有限公司 | STB (set top box) board of solid state disk mass production test control equipment |
| CN117457060B (en) * | 2023-12-22 | 2024-03-22 | 力瑞信（深圳）科技有限公司 | STB (set top box) board of solid state disk mass production test control equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104300676A (en) | On-line monitoring system suitable for capacitive device of intelligent substation | |
| CN103366312B (en) | A kind of intelligent transformer substation cloud system | |
| CN103427489A (en) | Intelligent substation comprehensive monitoring system | |
| CN103812724A (en) | Communication management device for transformer substation online monitoring system | |
| CN103647351A (en) | Multi-agent and heterogeneous communication technology based micro-grid intelligent measuring and controlling terminal and method | |
| WO2015176563A1 (en) | Unified modeling method using generalized measurement transverse correlation mode | |
| CN103414251A (en) | Substation network communication simulation system based on IEC 61850 | |
| CN105117532A (en) | Modeling method for intelligent substation secondary equipment interval information model | |
| CN105589438A (en) | Intelligent mobile communication base station energy management system | |
| WO2015010482A1 (en) | Cross-system ems status estimation method based on cim/e interaction | |
| CN106300684A (en) | A kind of intelligent integral towards transformer station's standby power system monitors method | |
| CN105827596A (en) | Communication management system | |
| CN104580245A (en) | Power distribution terminal 104 message parsing system and parsing method thereof | |
| CN103545933B (en) | I0 interface communication method in intelligent substation on-line monitoring system station | |
| CN102738903A (en) | Alternating current-direct current integrated power monitoring device used for station | |
| CN102830755B (en) | Integrated soft intelligent equipment server for intelligent substation | |
| CN103091580A (en) | Micro-grid electric energy monitoring device based on ARM | |
| CN101651361A (en) | Integrated automation system of substation | |
| CN203587709U (en) | Intelligent transformer station integrated monitoring system | |
| CN104253487B (en) | A kind of integrated intelligent electronic installation of transformer station process layer | |
| CN203932958U (en) | Power grid integrated intelligence is adjusted and online nucleus correcting system | |
| Yoo et al. | CAN to IEC 61850 for microgrid system | |
| CN109256865A (en) | A kind of distribution network automated terminal with self-checking function | |
| CN202650220U (en) | Intelligent access equipment for Internet of Things | |
| CN201576963U (en) | IEC61850-based intelligent data set of transformer substation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150121 |