CN101227091A - Intelligent power utilization system - Google Patents
Intelligent power utilization system Download PDFInfo
- Publication number
- CN101227091A CN101227091A CNA2007101904605A CN200710190460A CN101227091A CN 101227091 A CN101227091 A CN 101227091A CN A2007101904605 A CNA2007101904605 A CN A2007101904605A CN 200710190460 A CN200710190460 A CN 200710190460A CN 101227091 A CN101227091 A CN 101227091A
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- power supply
- circuit breaker
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- bus
- intelligent controller
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Abstract
The invention provides an intelligent employed electric system, which comprises a two-way incoming line power supply, an incoming line breaker which is respectively connected with the two-way incoming line power supply and a bus bar which is respectively and electrically connected with the incoming line power supply, wherein a bus coupling circuit breaker is electrically arranged between two sections of the bus bars, the invention also comprises an incoming line detecting unit, an intelligent controlling device which is electrically connected with each output end of the incoming line detecting unit, wherein the intelligent controlling device is also respectively and electrically connected with each breaker, the intelligent controlling device controls a close-open gate of each breaker through judging voltage and electric current value of each incoming line and according to the state of the current close-open gate of the breaker and the operating mode which is required by the system, the intelligent controlling device carries out an auto-switch-on control on each breaker according to the collected information when any incoming line power supply is failed, therefore the employed electric system can be led to continuously supply power, and the reliability of the employed electric system is effectively increased, failure processing time and operating cost are reduced, and the intelligent employed electric system is particularly applied on an unattended transformer station whose voltage grade is 110kV or under 110kV.
Description
Technical field
The present invention relates to a kind of substation using electricity system, particularly a kind of power utilization system that is applied to 110kV and following electric pressure transformer station.
Background technology
Substation's using electricity system adopts two road incoming powers to power to feedline circuit at present, this two road incoming power is electrically connected with lead-in circuit breaker respectively, the bus that is electrically connected with each lead-in circuit breaker, be electrically connected with bus between two sections buses, each circuit breaker has separating brake, combined floodgate, three service positions of dropout, this system has multiple operational mode, wherein a kind of operational mode is that two road incoming powers are main power supply, lead-in circuit breaker all is in closing position, bus is in the separating brake position, and main power supply is respectively to corresponding bussed supply; A kind of operational mode is in two road incoming powers one the tunnel to be main power supply wherein, another road incoming power is a stand-by power supply, be in closing position with the corresponding lead-in circuit breaker of main power supply, be in the separating brake position with the corresponding lead-in circuit breaker of stand-by power supply, and bus is in closing position, main power supply is powered simultaneously to two sections buses, mainly be to adopt manual mode to realize that thereby the switching of each circuit breaker system that makes operates under the different operational modes in the prior art, but the manual mode of this kind can not be suitable for unwatched requirement, as to adopt two road incoming powers be the operational mode of main power supply, when dead electricity appears in one road incoming power, cause this section bus dead electricity, the operations staff must the scene of arriving in the very nick of time handles could reduce loss as far as possible.
The importance of the power utilization system of transformer station is conspicuous, the dead electricity if institute's electricity consumption is stood entirely, to cause that the main transformer temperature is too high, the state of emergency such as direct current system battery discharge, if in time do not handle, will cause more serious consequence, therefore require power utilization system can guarantee continuous reliable power supply.
Summary of the invention
The present invention seeks to provide in order to overcome the deficiencies in the prior art a kind of is adapted to unattended and the intelligent power utilization system of continued power reliably.
For achieving the above object, technical scheme of the present invention is: a kind of intelligent power utilization system, it comprises two road incoming powers, the lead-in circuit breaker that is electrically connected with described two road incoming powers respectively, the bus that is electrically connected with described lead-in circuit breaker respectively, be electrically connected with bus between described two sections buses, described each circuit breaker has separating brake, close a floodgate, three service positions of threading off, this system has two kinds of operational modes, first kind of operational mode is that described two road incoming powers are main power supply, lead-in circuit breaker all is in closing position, described bus is in the separating brake position, and described main power supply is respectively to corresponding bussed supply; Second kind of operational mode is in described two road incoming powers one the tunnel to be main power supply wherein, another road incoming power is a stand-by power supply, be in closing position with the corresponding lead-in circuit breaker of main power supply, be in the separating brake position with the corresponding lead-in circuit breaker of stand-by power supply, and bus is in closing position, and described main power supply is powered simultaneously to two sections buses;
It also comprises with each incoming power is electrically connected and is used to gather the voltage of corresponding incoming power and the inlet wire detecting unit of electric current, the intelligent controller that is electrically connected with the output of described each inlet wire detecting unit, described intelligent controller also is electrically connected with described lead-in circuit breaker and bus respectively, described intelligent controller is gathered the voltage and current value of each inlet wire detecting unit and is judged the back and carry out prepared auto restart control to realize continued power according to the operational mode of current on/off switch state of each circuit breaker and system requirements with the electric current and voltage value of setting, described prepared auto restart control comprises two kinds of modes at least, first kind of prepared auto restart mode is under first kind of operational mode, when wherein one road main power supply breaks down, described intelligent controller disconnects the lead-in circuit breaker that is connected with this main power supply and with the bus automatic closing, when main power supply recovers normal, the lead-in circuit breaker automatic closing that described intelligent controller disconnects bus and will be connected with main power supply; Second kind of prepared auto restart mode is under second kind of operational mode, when main power supply breaks down, the lead-in circuit breaker automatic closing that described intelligent controller disconnects corresponding lead-in circuit breaker and will be connected with stand-by power supply, recover normal when main for incoming power, described intelligent controller disconnects the lead-in circuit breaker of stand-by power supply and the lead-in circuit breaker of main power supply is closed a floodgate.
The present invention compared with prior art, has following advantage: owing to gather the electric current and voltage value of incoming power with the inlet wire detecting unit, intelligent controller is by to the judgement of the voltage and current value of each inlet wire and control the separating brake and the combined floodgate of each circuit breaker according to the operational mode of current on/off switch state of circuit breaker and system requirements, and when arbitrary road incoming power breaks down, intelligent controller carries out prepared auto restart control according to the information of gathering to each circuit breaker, thereby make that power utilization system can continued power, this intelligent power utilization system has effectively increased the reliability of power utilization system, reduce fault handling time and operating cost, be specially adapted to 110kV and the unwatched transformer station of following electric pressure.
Description of drawings
Accompanying drawing 1 is intelligent power utilization system frame structure schematic diagram of the present invention;
Wherein: 1, incoming power; 2, lead-in circuit breaker; 3, bus; 4, bus; 5, intelligent controller; 6, bus detecting unit; 8, inlet wire detecting unit.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is done concrete introduction:
Intelligent power utilization system as shown in Figure 1, comprise two road incoming powers 1, the lead-in circuit breaker 2 that is electrically connected with two road incoming powers 1 respectively, the bus 3 that is electrically connected with each lead-in circuit breaker 2, also be connected with bus 4 between two sections buses 3, be convenient maintenance and replacing, each circuit breaker adopts drawout breaker, and the overcurrent protection value of each circuit breaker can be adjusted, each circuit breaker has separating brake, close a floodgate, three service positions of short circuit dropout, so native system can adopt operation under the following dual mode: first kind of operational mode is that two road incoming powers 1 are respectively as main power supply, two lead-in circuit breakers 2 are in closing position, bus 4 is in the separating brake position, and promptly this kind operational mode is powered to two sections buses 3 respectively by two road incoming powers 1; Second kind of operational mode be wherein one road incoming power 1 as main power supply, another road incoming power 1 is as stand-by power supply, the lead-in circuit breaker 2 that is connected with main power supply is in closing position, the lead-in circuit breaker that is connected with stand-by power supply is in the separating brake position, bus is in closing position, and promptly this kind operational mode is powered to two sections buses simultaneously by the one road main incoming power that supplies.
Along with intelligentized requirement is more and more higher, power utilization system of the present invention also comprises two inlet wire detecting units 8, intelligent controller 5, two bus detecting units 6, the input of each inlet wire detecting unit 8 is electrically connected with corresponding incoming power 1 respectively, the output of each inlet wire detecting unit 8 is connected by communication interface with intelligent controller 5 respectively and carries out information interaction, each bus detecting unit 6 is connected with the bus 3 of correspondent section, and the output of bus detecting unit 6 still is connected by communication interface with intelligent controller 5 and carries out information interaction, described intelligent controller 5 also has bi-directional communication interface, by this bi-directional communication interface, power utilization system of the present invention can carry out telecommunication with remote monitoring system, so this system not only can local operation but also can remote operation, be suitable for unwatched occasion, communication interface can be selected RS485 for use, TCP/IP, CAN, a kind of among the I2C, intelligent controller 5 also is electrically connected with each circuit breaker and is used for gathering the service position information of each circuit breaker, each inlet wire detecting unit 8 is used to detect the electric current and voltage value of corresponding incoming power 1, and the electric current and voltage value outputed to intelligent controller 5, intelligent controller 5 is automatically controlled the combined floodgate and the separating brake position of each circuit breaker according to the electric current and voltage value, thereby be intelligent controller 5 can carry out prepared auto restart control assurance system to each circuit breaker can continued power, make whole system more intelligent.
Following mask body is introduced several modes of intelligent controller 5 prepared auto restarts control among the present invention:
First kind of prepared auto restart mode is that system is under first kind of operational mode, be that the two-way incoming power is a main power supply, bus is in the separating brake position, two lead-in circuit breakers are in closing position, the electric current and voltage value of the corresponding incoming power of each inlet wire detecting unit 4 output is to intelligent controller, described intelligent controller is according to default overvoltage, under-voltage electric current and voltage value to primary voltage is carried out overvoltage and under-voltage and phase shortage whether judgement, the set point of described overvoltage/undervoltage is adjustable, when intelligent controller 5 detects arbitrary road incoming power and breaks down, the lead-in circuit breaker that its control is connected with this incoming power disconnects, and make the bus closure, when corresponding incoming power fault is got rid of, intelligent controller disconnects bus, with corresponding incoming power closure, return to the mode that the two-way incoming power is a main power supply;
Second kind of prepared auto restart mode is that system is in second kind of operational mode, promptly this moment wherein one road incoming power be main power supply, another road incoming power is a stand-by power supply, bus between bus is in closing position, the lead-in circuit breaker that is connected with main power supply is in closing position, the circuit breaker that is connected with stand-by power supply is in the separating brake position, the inlet wire detecting unit that is connected with main power supply detects the current/voltage value of output when the intelligent controller judgement is broken down, intelligent controller will disconnect the lead-in circuit breaker that is connected with main power supply, the lead-in circuit breaker that will be connected with stand-by power supply simultaneously closes a floodgate, when the main power supply fault is discharged, then intelligent controller is controlled the lead-in circuit breaker automatic disconnection that is connected with standby voltage, and the lead-in circuit breaker auto-closing that will be connected with main power supply, from and return to initial operational mode.
The on/off switch control of above-mentioned circuit breaker is mainly controlled automatically by intelligent controller, certainly the circuit breaker switching control in the present embodiment also can adopt manual mode to carry out, particularly occurring to adopt manual mode to carry out emergency operation under the whole dead electricity situations of electric fault or two-way interchange inlet wire.
When taking place to exchange emergency stop valve trip, intelligent controller is controlled corresponding circuit breaker and is in blocking, thereby prevents to exchange the further expansion of fault, causes the interchange dead electricity at full station, and concrete operations are as follows:
When system is in first kind of operational mode, intelligent controller detects a certain lead-in circuit breaker has short circuit to thread off, then system maintains the original state, keep the state of single busbar connection operation, forbid that bus drops into automatically, prevent that the fault point from causing another lead-in circuit breaker to thread off, thereby the situation of avoiding full station to exchange dead electricity takes place.After the maintainer repairs the fault point, by system being cut, the circuit breaker of threading off is carried out sub-switching operation to manual operational mode, normal condition is promptly recovered by system, according to the needs of scene operation system is cut to corresponding operational mode automatically then;
When system is in second kind of operational mode, if intelligent controller detects bus and threads off, then system maintains the original state, keep the state of single busbar connection operation, forbid the stand-by power supply input, prevent that the fault point from causing the stand-by power supply lead-in circuit breaker to thread off, thereby the situation of avoiding full station to exchange dead electricity takes place.If intelligent controller detects the lead-in circuit breaker that is connected with main power supply and threads off, then make the bus separating brake earlier, and then the lead-in circuit breaker that will be connected with stand-by power supply closes a floodgate and get final product, thereby avoid full station to exchange the situation generation of dead electricity.After the maintainer repairs the fault point, by system being cut, the circuit breaker of threading off is carried out sub-switching operation to manual operational mode, normal condition is promptly recovered by system, and then according to the needs of scene operation system is cut to corresponding operational mode automatically.
Intelligent controller of the present invention also is provided with the fault alarm unit, when can not system be control effectively unusually appears in this controller, will send warning message.
All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (6)
1. intelligent power utilization system, it comprises two road incoming powers, the lead-in circuit breaker that is electrically connected with described two road incoming powers respectively, the bus that is electrically connected with described lead-in circuit breaker respectively, be electrically connected with bus between described two sections buses, described each circuit breaker has separating brake, close a floodgate, three service positions of threading off, this system has two kinds of operational modes, first kind of operational mode is that described two road incoming powers are main power supply, lead-in circuit breaker all is in closing position, described bus is in the separating brake position, and described main power supply is respectively to corresponding bussed supply; Second kind of operational mode is in described two road incoming powers one the tunnel to be main power supply wherein, another road incoming power is a stand-by power supply, be in closing position with the corresponding lead-in circuit breaker of main power supply, be in the separating brake position with the corresponding lead-in circuit breaker of stand-by power supply, and bus is in closing position, and described main power supply is powered simultaneously to two sections buses;
It is characterized in that: it also comprises with each incoming power is electrically connected and is used to gather the voltage of corresponding incoming power and the inlet wire detecting unit of electric current, the intelligent controller that is electrically connected with the output of described each inlet wire detecting unit, described intelligent controller also is electrically connected with described lead-in circuit breaker and bus respectively, described intelligent controller is gathered the voltage and current value of each inlet wire detecting unit and is judged the back and carry out prepared auto restart control to realize continued power according to the current on/off switch state of each circuit breaker and the operational mode of system requirements with the electric current and voltage value of setting, described prepared auto restart control comprises two kinds of modes at least, first kind of prepared auto restart mode is under first kind of operational mode, when wherein one road main power supply breaks down, described intelligent controller disconnects the lead-in circuit breaker that is connected with this main power supply and with the bus automatic closing, when main power supply recovers normal, the lead-in circuit breaker automatic closing that described intelligent controller disconnects bus and will be connected with main power supply; Second kind of prepared auto restart mode is under second kind of operational mode, when main power supply breaks down, the lead-in circuit breaker automatic closing that described intelligent controller disconnects corresponding lead-in circuit breaker and will be connected with stand-by power supply, recover normal when main for incoming power, described intelligent controller disconnects the lead-in circuit breaker of stand-by power supply and the lead-in circuit breaker of main power supply is closed a floodgate.
2. intelligent power utilization system according to claim 1, it is characterized in that: this system also comprises the bus detecting unit that is used to gather the voltage and current on the respective bus bars that is electrically connected respectively with described two sections buses, and described bus detecting unit and described intelligent controller are electrically connected and carry out information interaction.
3. intelligent power utilization system according to claim 1 and 2, it is characterized in that: described intelligent controller is provided with adjustable pressure point, under-voltage point, deferred action time excessively, and described intelligent controller is gathered the electric current and voltage value of two road incoming powers and carried out two road incoming power overvoltages, under-voltage, phase shortage whether judgement.
4. intelligent power utilization system according to claim 1 is characterized in that: thus described intelligent controller has the bi-directional communication interface of carrying out information interaction realization Long-distance Control with remote monitoring system.
5. intelligent power utilization system according to claim 4 is characterized in that: described bi-directional communication interface is a kind of among RS485, TCP/IP, CAN, the I2C.
6. intelligent power utilization system according to claim 1 is characterized in that: described bus and lead-in circuit breaker adopt overcurrent protection to be worth adjustable pull-out type breaker of plastic casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101904605A CN101227091A (en) | 2007-11-26 | 2007-11-26 | Intelligent power utilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101904605A CN101227091A (en) | 2007-11-26 | 2007-11-26 | Intelligent power utilization system |
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| CN101227091A true CN101227091A (en) | 2008-07-23 |
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| CNA2007101904605A Pending CN101227091A (en) | 2007-11-26 | 2007-11-26 | Intelligent power utilization system |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788607B (en) * | 2009-12-28 | 2011-12-28 | 江苏省电力公司苏州供电公司 | Low-voltage phase-sequence phasemeter and detection method thereof |
| CN101788614B (en) * | 2009-12-28 | 2012-07-25 | 江苏省电力公司苏州供电公司 | High and low voltage integrated phase-sequence phase meter and detection method thereof |
| CN102790426A (en) * | 2012-06-29 | 2012-11-21 | 宝钢不锈钢有限公司 | Improved spare power source automatic switch method for single bus sectionalized operation of power substation |
| CN103001213A (en) * | 2011-09-13 | 2013-03-27 | 辽宁省电力有限公司本溪供电公司 | Continuous power supplying guarantee device for power supply |
| CN103023133A (en) * | 2012-12-04 | 2013-04-03 | 施耐德万高（天津）电气设备有限公司 | Dual power supply automatic changeover gear controller |
| CN103199614A (en) * | 2013-03-28 | 2013-07-10 | 辽宁华冶集团发展有限公司 | Two-way alternating current inlet wire and connection power distribution control method |
| CN103699004A (en) * | 2013-12-25 | 2014-04-02 | 施耐德万高（天津）电气设备有限公司 | Parallel function-based automatic transfer switching device control system and control method |
| CN103840546A (en) * | 2014-03-06 | 2014-06-04 | 上海华虹宏力半导体制造有限公司 | Power supply system |
| CN104467172A (en) * | 2013-09-23 | 2015-03-25 | 国家电网公司 | Direct current system and control device thereof |
| CN104659904A (en) * | 2015-03-20 | 2015-05-27 | 山东钢铁股份有限公司 | Spare power automatic switching method, device and system |
| WO2015074429A1 (en) * | 2013-11-19 | 2015-05-28 | 国家电网公司 | Distributed spare automatic switching apparatus connection method and spare automatic switching action method thereof |
| CN105932769A (en) * | 2016-07-07 | 2016-09-07 | 国电南瑞南京控制系统有限公司 | Power supply seamless switching device and method of electrified railway traction substation |
| CN106160187A (en) * | 2014-09-30 | 2016-11-23 | 北京机械工业自动化研究所 | Middle pressure power transmission and distribution automatic switching control system and control method |
| CN106655464A (en) * | 2016-10-14 | 2017-05-10 | 杭州鸿雁智能科技有限公司 | Double-busbar monitoring system |
| CN108054829A (en) * | 2017-12-18 | 2018-05-18 | 安徽伊格瑞德电气设备有限公司 | A kind of double-bus segmentation apparatus for fast switching and its method of work |
| CN110601347A (en) * | 2019-09-11 | 2019-12-20 | 陕西铭拓机电技术有限公司 | Control device and control method of low-voltage switch equipment |
| CN110752588A (en) * | 2019-11-07 | 2020-02-04 | 国网浙江淳安县供电有限公司 | Protection device based on electric arc and light detection |
| CN113691009A (en) * | 2021-08-24 | 2021-11-23 | 常州太平洋电力设备(集团)有限公司 | Power supply system of subway main substation power supply and closed loop control method |
| CN116742788A (en) * | 2023-08-16 | 2023-09-12 | 华能澜沧江水电股份有限公司 | Automatic switching-on method and device for standby power supply |
-
2007
- 2007-11-26 CN CNA2007101904605A patent/CN101227091A/en active Pending
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788614B (en) * | 2009-12-28 | 2012-07-25 | 江苏省电力公司苏州供电公司 | High and low voltage integrated phase-sequence phase meter and detection method thereof |
| CN101788607B (en) * | 2009-12-28 | 2011-12-28 | 江苏省电力公司苏州供电公司 | Low-voltage phase-sequence phasemeter and detection method thereof |
| CN103001213A (en) * | 2011-09-13 | 2013-03-27 | 辽宁省电力有限公司本溪供电公司 | Continuous power supplying guarantee device for power supply |
| CN102790426A (en) * | 2012-06-29 | 2012-11-21 | 宝钢不锈钢有限公司 | Improved spare power source automatic switch method for single bus sectionalized operation of power substation |
| CN103023133A (en) * | 2012-12-04 | 2013-04-03 | 施耐德万高（天津）电气设备有限公司 | Dual power supply automatic changeover gear controller |
| CN103199614A (en) * | 2013-03-28 | 2013-07-10 | 辽宁华冶集团发展有限公司 | Two-way alternating current inlet wire and connection power distribution control method |
| CN104467172A (en) * | 2013-09-23 | 2015-03-25 | 国家电网公司 | Direct current system and control device thereof |
| WO2015074429A1 (en) * | 2013-11-19 | 2015-05-28 | 国家电网公司 | Distributed spare automatic switching apparatus connection method and spare automatic switching action method thereof |
| CN103699004A (en) * | 2013-12-25 | 2014-04-02 | 施耐德万高（天津）电气设备有限公司 | Parallel function-based automatic transfer switching device control system and control method |
| CN103840546A (en) * | 2014-03-06 | 2014-06-04 | 上海华虹宏力半导体制造有限公司 | Power supply system |
| CN103840546B (en) * | 2014-03-06 | 2015-11-25 | 上海华虹宏力半导体制造有限公司 | Electric power system |
| CN106160187A (en) * | 2014-09-30 | 2016-11-23 | 北京机械工业自动化研究所 | Middle pressure power transmission and distribution automatic switching control system and control method |
| CN104659904A (en) * | 2015-03-20 | 2015-05-27 | 山东钢铁股份有限公司 | Spare power automatic switching method, device and system |
| CN105932769A (en) * | 2016-07-07 | 2016-09-07 | 国电南瑞南京控制系统有限公司 | Power supply seamless switching device and method of electrified railway traction substation |
| CN106655464A (en) * | 2016-10-14 | 2017-05-10 | 杭州鸿雁智能科技有限公司 | Double-busbar monitoring system |
| CN108054829A (en) * | 2017-12-18 | 2018-05-18 | 安徽伊格瑞德电气设备有限公司 | A kind of double-bus segmentation apparatus for fast switching and its method of work |
| CN110601347A (en) * | 2019-09-11 | 2019-12-20 | 陕西铭拓机电技术有限公司 | Control device and control method of low-voltage switch equipment |
| CN110601347B (en) * | 2019-09-11 | 2021-05-07 | 陕西铭拓机电技术有限公司 | Control device and control method of low-voltage switch equipment |
| CN110752588A (en) * | 2019-11-07 | 2020-02-04 | 国网浙江淳安县供电有限公司 | Protection device based on electric arc and light detection |
| CN113691009A (en) * | 2021-08-24 | 2021-11-23 | 常州太平洋电力设备(集团)有限公司 | Power supply system of subway main substation power supply and closed loop control method |
| CN116742788A (en) * | 2023-08-16 | 2023-09-12 | 华能澜沧江水电股份有限公司 | Automatic switching-on method and device for standby power supply |
| CN116742788B (en) * | 2023-08-16 | 2024-01-23 | 华能澜沧江水电股份有限公司 | Automatic switching-on method and device for standby power supply |
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Open date: 20080723 |