CN102856981A - Station-area protection and control device with protection and control functions in converting station - Google Patents
Station-area protection and control device with protection and control functions in converting station Download PDFInfo
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- CN102856981A CN102856981A CN2012103388664A CN201210338866A CN102856981A CN 102856981 A CN102856981 A CN 102856981A CN 2012103388664 A CN2012103388664 A CN 2012103388664A CN 201210338866 A CN201210338866 A CN 201210338866A CN 102856981 A CN102856981 A CN 102856981A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/14—Protecting elements, switches, relays or circuit breakers
-
- 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
Abstract
The invention discloses a station-area protection and control device with protection and control functions in a converting station. The protection functions of the device comprise line protection, transformer protection and bus protection; and the control functions comprise backup power automatic switching function and low-frequency deloading function. The protection and control functions are realized by a plurality of independent functional plug-ins, and different plug-ins fulfill different functions. The functional plug-ins share data information through an internal 100M Ethernet. When bus differential protection or transformer backup protection is active, the backup power automatic switching function is automatically locked; and when the protection functional plug-ins are active, the low-frequency deloading function is automatically locked. Compared with the traditional protection device, the station-area protection and control device with protection and control functions in a converting station can realize the function of more than ten of original independent protection and control devices of the converting station through one set of device, so as to greatly lower the cost of the protection and control devices and improve the coordinative and cooperative ability between the protection and control functions.
Description
Technical field
The invention belongs to relay protection of power system and technical field of automation, be specifically related to transformer station's integrated protection control device that a kind of based on data network is shared.
Background technology
At present; Microcomputer Protection is used widely in electric power system; but still have some problems effectively not solved; capability of information sharing is poor between the different microcomputer protecting devices; protection is adjusted and is cooperated difficulty; setting value can't adaptive system dynamic change, separate between protective relaying device and the automatic safety device, be difficult to the collaborative failure accident of considering to process electrical network.Along with the expansion of electrical network scale, the increase of substation capacity, independently Microcomputer Protection and control device are more and more in the transformer station, have brought larger workload for the operation maintenance of grid equipment.
Intelligent primary equipment has changed the awkward situation that traditional primary equipment in the past is difficult to satisfy the modern automation technology demand, the network technology of high speed development has satisfied the demand to network capacity and safety, unfailing performance that day by day increases, and the IEC61850 standard solved complexity and the technology realization of original system integration and share of information effectively.The realization that is applied as information sharing and digital transformer substation of these advanced technologies is laid a good foundation, and also research, the enforcement for integrated protection provides possibility.
Summary of the invention
The invention discloses a kind of territory, station protection control device that in transformer station, has protection and control function.The defencive function of described device comprises route protection, tranformer protection, bus protection; The control function comprises: prepared auto restart function and UFLS function.The protection of described device and control function realized by some independently feature cards, different plug-in units is finished different functions.Realize data information sharing by inner 100M Ethernet between the difference in functionality plug-in unit.When bus differential protecting or transformer backup protection action, automatic blocking prepared auto restart function; During the action of defencive function plug-in unit, automatic blocking UFLS function.The present invention compares with traditional protective device; this device can be realized by a covering device function of former more than ten cover stand alone type protection control device in the transformer station; reduce in a large number the cost of protection control device, promoted the cooperation ability between the protection and control function.
The present invention specifically by the following technical solutions.
A kind of territory, station protection control device that has protection and control function in transformer station is characterized in that:
Territory, described station protection control device has analog acquisition plug-in unit, switch acquisition plug-in unit, switching value output inserter, route protection plug-in unit, tranformer protection plug-in unit, bus protection plug-in unit, prepared auto restart plug-in unit, UFLS plug-in unit;
Link to each other by the inner inside 100M Ethernet that arranges between the described different plug-in unit;
Full station voltage, current analog amount that described analog acquisition plug-in unit is external, realize each analog quantity synchronized sampling by lock-out pulse, realization is to the synchronous data collection of each bar busbar voltage, line current, each side electric current of main transformer in the transformer station, and delivers in real time each protective plug-in unit by inner 100M Ethernet;
The switching value of each switch of the external full station of described switch acquisition plug-in unit, disconnecting link by the lock-out pulse collection, and is delivered to each protective plug-in unit in real time by inner 100M Ethernet;
Tripping operation and the combined floodgate contact of each switch of the external full station of described switching value output inserter, execute protection plug-in unit send tripping operation and the order of closing a floodgate;
Described route protection plug-in unit utilizes the line switching that voltage, current information and the described switching value output inserter of the circuit that described analog acquisition plug-in unit gathers gather, the switching value of disconnecting link, realize distance protection, zero-sequenceprotection and reclosing function, when line failure, the route protection plug-in unit sends trip signal, is sent to the action of tripping of switching value output inserter by the 100M Ethernet;
Described main transformer protection plug-in unit utilizes the main transformer switch that each side voltage, current information and the described switching value output inserter of the main transformer that described analog acquisition plug-in unit gathers gather, the switching value of disconnecting link, realize main transformer differential protection, composite voltage locking overcurrent protection, zero sequence overcurrent protection, when main transformer breaks down, described main transformer protection plug-in unit sends trip signal, is sent to the action of tripping of switching value output inserter by the 100M Ethernet;
Described bus protection plug-in unit utilizes each bar circuit on the bus that described analog acquisition plug-in unit gathers and voltage, the current information of transformer, the switching value of each bar circuit and transformer switch, disconnecting link on the bus that gathers with described switching value output inserter, realize bus differential protecting, when bus breaks down, described bus protection plug-in unit sends trip signal, is sent to the action of tripping of switching value output inserter by the 100M Ethernet;
Described prepared auto restart protective plug-in unit utilizes full station track road, bus and the transformer switch that voltage, current information and the described switching value output inserter of full station track road, bus and transformer that described analog acquisition plug-in unit gathers gather, the switching value of disconnecting link, realize the comprehensive prepared auto restart protection of transformer station, when prepared auto restart protection action, described prepared auto restart protective plug-in unit sends trip signal, be sent to the switching value output inserter by the 100M Ethernet and trip and feed motion, realize prepared auto restart function in the station;
Described UFLS protective plug-in unit utilizes frequency and the voltage of the bus that described analog acquisition plug-in unit gathers, the switching value of each bar circuit and transformer switch, disconnecting link on the bus that current information and described switching value output inserter gather, realize the protection of UFLS and low pressure off-load, when system's low frequency or low pressure, according to predefined low frequency definite value and low pressure definite value, described UFLS protective plug-in unit sends trip signal, is sent to the trip off-load action of switching value output inserter by the 100M Ethernet;
When bus differential protecting or tranformer protection action, bus protection plug-in unit or tranformer protection plug-in unit send locking information by the 100M Ethernet to the prepared auto restart plug-in unit, locking prepared auto restart function; When route protection, tranformer protection or bus protection were moved, corresponding protective plug-in unit sent locking information by the 100M Ethernet to the UFLS plug-in unit, locking UFLS function.
The present invention compares with traditional protective device; this device can be realized by a covering device function of former more than ten cover stand alone type protection control device in the transformer station; reduce in a large number the cost of protection control device, promoted the cooperation ability between the protection and control function.
Description of drawings
Fig. 1 is the structural representation of the application's territory, station protection control device.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing and example.
As shown in Figure 1; pluggable mode behind the structure employing plug-in unit of the application's territory, station protection control device; cabinet is inserted at the cabinet rear portion that is each plug-in unit slave station territory protection control device; thereby weak signal bus and forceful electric power signal are split before and after cabinet; strengthened the bus structures of the antijamming capability of device, feature card comprises: analog acquisition plug-in unit, switch acquisition plug-in unit, switching value output inserter, route protection plug-in unit, tranformer protection plug-in unit, bus protection plug-in unit, prepared auto restart plug-in unit, UFLS plug-in unit.Different plug-in units is finished different functions; The major function of above-mentioned plug-in unit is as follows:
1) the external full station of analog acquisition plug-in unit voltage, current analog amount; realize each analog quantity synchronized sampling by lock-out pulse; realization is to the synchronous data collection of each bar busbar voltage, line current, each side electric current of main transformer in the transformer station, and delivers in real time each protective plug-in unit by inner 100M Ethernet.
2) position and other switching values of the position of the external full station of a switch acquisition plug-in unit switch, disconnecting link; gather synchrodata by lock-out pulse and deliver in real time each protective plug-in unit by the 100M Ethernet, in order to judge the operating state of this circuit or transformer.
3) tripping operation of each switch of the external full station of switching value output inserter and combined floodgate contact are carried out each protective plug-in unit and are sent tripping operation and combined floodgate order.
4) the route protection plug-in unit utilizes the line switching that voltage, current information and the described switching value output inserter of circuit gather, the switching value of disconnecting link, realizes distance protection, zero-sequenceprotection and reclosing function.When line failure, trip signal is sent in protection, is sent to the action of tripping of switching value output inserter by the 100M Ethernet.
5) the main transformer protection plug-in unit utilizes the main transformer switch that each side voltage, current information and the described switching value output inserter of main transformer gather, the switching value of disconnecting link, realizes main transformer differential protection, composite voltage locking overcurrent protection, zero sequence overcurrent protection.When main transformer broke down, trip signal was sent in protection, was sent to the action of tripping of switching value output inserter by the 100M Ethernet.
6) the bus protection plug-in unit utilizes the switching value of each bar circuit and transformer switch on the bus that voltage, current information and the described switching value output inserter of each bar circuit on the bus and transformer gather, disconnecting link, realizes bus differential protecting.When bus broke down, trip signal was sent in protection, was sent to the action of tripping of switching value output inserter by the 100M Ethernet.
7) voltage, current information and the transformer switch of the full station track of prepared auto restart protective plug-in unit utilization road, bus and transformer, the switching value of disconnecting link realize the comprehensive prepared auto restart protection of transformer station.When prepared auto restart moved, device sent trip signal, was sent to the switching value output inserter by the 100M Ethernet and tripped and feed motion, realized prepared auto restart function in the station.
8) the UFLS protective plug-in unit utilizes frequency and the voltage of bus, and the switching value of each bar circuit and transformer switch, disconnecting link on the bus that current information and described switching value output inserter gather realizes the protection of UFLS and low pressure off-load.When system's low frequency or low pressure, according to predefined low frequency definite value and low pressure definite value, trip signal is sent in protection, is sent to the off-load action of tripping of switching value output inserter by the 100M Ethernet.
Can mutual magnanimity information and realize data sharing in order to make between the different plug-in units, this device is provided with inner 100M Ethernet, and different feature cards all accesses the 100M Ethernet.When bus differential protecting or transformer backup protection action, send locking information by the 100M Ethernet to the prepared auto restart plug-in unit, locking prepared auto restart function; During the action of defencive function plug-in unit, send locking information by the 100M Ethernet to the UFLS plug-in unit, locking UFLS function;
The embodiment that more than provides is in order to illustrate the present invention and its practical application, be not that the present invention is done any pro forma restriction, any one professional and technical personnel is in the scope that does not depart from technical solution of the present invention, and the above technology of foundation and method do certain modification and the equivalent embodiment that is considered as equivalent variations is worked as in change.
Claims (2)
1. control device is protected in a territory, station that has protection and control function in transformer station, it is characterized in that:
Territory, described station protection control device has analog acquisition plug-in unit, switch acquisition plug-in unit, switching value output inserter, route protection plug-in unit, tranformer protection plug-in unit, bus protection plug-in unit, prepared auto restart plug-in unit, UFLS plug-in unit;
Link to each other by the inner inside 100M Ethernet that arranges between the described different plug-in unit;
Full station voltage, current analog amount that described analog acquisition plug-in unit is external, realize each analog quantity synchronized sampling by lock-out pulse, realization is to the synchronous data collection of each bar busbar voltage, line current, each side electric current of main transformer in the transformer station, and delivers in real time each protective plug-in unit by inner 100M Ethernet;
The switching value signal of each switch of the external full station of described switch acquisition plug-in unit, disconnecting link by the lock-out pulse collection, and is delivered to each protective plug-in unit in real time by inner 100M Ethernet;
Tripping operation and the combined floodgate contact of each switch of the external full station of described switching value output inserter are carried out corresponding protective plug-in unit and are sent tripping operation and combined floodgate order;
Described route protection plug-in unit utilizes the line switching that voltage, current information and the described switching value output inserter of the circuit that described analog acquisition plug-in unit gathers gather, the switching value signal of disconnecting link, realize distance protection, zero-sequenceprotection and reclosing function, when line failure, the route protection plug-in unit sends trip signal, is sent to the action of tripping of switching value output inserter by the 100M Ethernet;
Described main transformer protection plug-in unit utilizes the main transformer switch that each side voltage, current information and the described switching value output inserter of the main transformer that described analog acquisition plug-in unit gathers gather, the switching value of disconnecting link, realize main transformer differential protection, composite voltage locking overcurrent protection, zero sequence overcurrent protection, when main transformer breaks down, described main transformer protection plug-in unit sends trip signal, is sent to the action of tripping of switching value output inserter by the 100M Ethernet;
Described bus protection plug-in unit utilizes the switching value of circuit that voltage, current information and the described switching value output inserter of each bar circuit on the bus that described analog acquisition plug-in unit gathers and transformer gather and transformer switch, disconnecting link, realize bus differential protecting, when bus breaks down, described bus protection plug-in unit sends trip signal, is sent to the action of tripping of switching value output inserter by the 100M Ethernet;
Circuit, bus, the switch of transformer, chopper switch amount that described prepared auto restart protective plug-in unit utilizes voltage, current information and the described switching value output inserter of full station track road, bus and transformer that described analog acquisition plug-in unit gathers to gather, realize the comprehensive prepared auto restart protection of transformer station, when prepared auto restart protection action, described prepared auto restart protective plug-in unit sends trip signal, be sent to the switching value output inserter by the 100M Ethernet and trip and feed motion, realize prepared auto restart function in the station;
Described UFLS protective plug-in unit utilizes frequency and the voltage of the bus that described analog acquisition plug-in unit gathers, the line switching that current information and described switching value output inserter gather, the switching value of disconnecting link, realize the protection of UFLS and low pressure off-load, when system's low frequency or low pressure, according to predefined low frequency definite value and low pressure definite value, described UFLS protective plug-in unit sends trip signal, is sent to the trip off-load action of switching value output inserter by the 100M Ethernet;
When bus differential protecting or tranformer protection action, bus protection plug-in unit or tranformer protection plug-in unit send locking information by the 100M Ethernet to the prepared auto restart plug-in unit, locking prepared auto restart function; When route protection, tranformer protection or bus protection were moved, corresponding protective plug-in unit sent locking information by the 100M Ethernet to the UFLS plug-in unit, locking UFLS function.
2. control device is protected in territory, station according to claim 1, it is characterized in that:
Pluggable mode behind the structure employing plug-in unit of territory, described station protection control device, namely cabinet is inserted at the cabinet rear portion of each plug-in unit slave station territory protection control device, thereby weak signal bus and forceful electric power signal are split before and after cabinet, has strengthened the antijamming capability of device.
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| CN201210338866.4A CN102856981B (en) | 2012-09-13 | 2012-09-13 | Station-area protection and control device with protection and control functions in converting station |
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| CN201210338866.4A CN102856981B (en) | 2012-09-13 | 2012-09-13 | Station-area protection and control device with protection and control functions in converting station |
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| CN102856981B CN102856981B (en) | 2015-04-22 |
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| CN104950844A (en) * | 2015-05-11 | 2015-09-30 | 国家电网公司 | Intelligent substation area protection control system detection method and device |
| CN105281305A (en) * | 2014-06-19 | 2016-01-27 | 国网山西省电力公司电力科学研究院 | Distributed freely-network-expanded wide-area current differential backup protector |
| CN105634128A (en) * | 2016-01-27 | 2016-06-01 | 国网山东无棣县供电公司 | Maintenance and control system between master substation and slave stations |
| CN105896468A (en) * | 2015-01-26 | 2016-08-24 | 国家电网公司 | Compact relay protection device |
| CN106199337A (en) * | 2016-07-20 | 2016-12-07 | 武汉中元华电软件有限公司 | A kind of grid fault analytical method combining judgement based on analog quantity and switching value |
| CN108173245A (en) * | 2017-12-28 | 2018-06-15 | 北京四方继保自动化股份有限公司 | The implementation method of combined floodgate is thought highly of in open circuit in a kind of intelligent substation |
| CN110544947A (en) * | 2019-09-23 | 2019-12-06 | 南方电网科学研究院有限责任公司 | low-voltage load shedding control method and device for power system |
| CN111130218A (en) * | 2019-12-25 | 2020-05-08 | 深圳供电局有限公司 | Transformer substation security bus difference unification device |
| CN112564032A (en) * | 2020-11-27 | 2021-03-26 | 国网四川省电力公司德阳供电公司 | Adjusting method for setting line of low-frequency load shedding protection device of city power grid |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105281305A (en) * | 2014-06-19 | 2016-01-27 | 国网山西省电力公司电力科学研究院 | Distributed freely-network-expanded wide-area current differential backup protector |
| CN105281305B (en) * | 2014-06-19 | 2018-03-06 | 国网山西省电力公司电力科学研究院 | A kind of distribution freely expands net wide area current differential reserve protection |
| CN105896468A (en) * | 2015-01-26 | 2016-08-24 | 国家电网公司 | Compact relay protection device |
| CN104950844A (en) * | 2015-05-11 | 2015-09-30 | 国家电网公司 | Intelligent substation area protection control system detection method and device |
| CN105634128A (en) * | 2016-01-27 | 2016-06-01 | 国网山东无棣县供电公司 | Maintenance and control system between master substation and slave stations |
| CN106199337A (en) * | 2016-07-20 | 2016-12-07 | 武汉中元华电软件有限公司 | A kind of grid fault analytical method combining judgement based on analog quantity and switching value |
| CN108173245A (en) * | 2017-12-28 | 2018-06-15 | 北京四方继保自动化股份有限公司 | The implementation method of combined floodgate is thought highly of in open circuit in a kind of intelligent substation |
| CN108173245B (en) * | 2017-12-28 | 2019-07-23 | 北京四方继保自动化股份有限公司 | The implementation method of combined floodgate is thought highly of in open circuit in a kind of intelligent substation |
| CN110544947A (en) * | 2019-09-23 | 2019-12-06 | 南方电网科学研究院有限责任公司 | low-voltage load shedding control method and device for power system |
| CN110544947B (en) * | 2019-09-23 | 2020-12-04 | 南方电网科学研究院有限责任公司 | Low-voltage load shedding control method and device for power system |
| CN111130218A (en) * | 2019-12-25 | 2020-05-08 | 深圳供电局有限公司 | Transformer substation security bus difference unification device |
| CN112564032A (en) * | 2020-11-27 | 2021-03-26 | 国网四川省电力公司德阳供电公司 | Adjusting method for setting line of low-frequency load shedding protection device of city power grid |
| CN112564032B (en) * | 2020-11-27 | 2023-03-28 | 国网四川省电力公司德阳供电公司 | Adjusting method for setting line of low-frequency load shedding protection device of city power grid |
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| CN102856981B (en) | 2015-04-22 |
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