CN101145752B - Channel switching technology of generator excitation adjusting device - Google Patents
Channel switching technology of generator excitation adjusting device Download PDFInfo
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- CN101145752B CN101145752B CN2007101308043A CN200710130804A CN101145752B CN 101145752 B CN101145752 B CN 101145752B CN 2007101308043 A CN2007101308043 A CN 2007101308043A CN 200710130804 A CN200710130804 A CN 200710130804A CN 101145752 B CN101145752 B CN 101145752B
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Abstract
The invention relates to a channel switching technology for an excitation regulating device of a generator. Dual-channel (a main channel and a standby channel) operation mode is adopted, the standby channel does not participate failure predication of the main channel, once the main channel predicts the self-failure, the main channel will switch to the standby channel to reserve excitation or adoptmanual operation mode in the channel; the main channel is completely independent, and the switching is only conducted between the output pulse; real-time multi-type inspection prediction technology is adopted to completely avoid the occurrence of generator loss of excitation loss or erroneous excitation forcing of the generator; when the standby channel tracks the main channel, smooth filtering technique and inertial element are adopted to automatically filter out error messages and reduce the influence of abrupt change of trace quantity, meanwhile, multi-target simultaneous tracking technique is adopted to track variables of the main channel and the system and guarantee the unperturbed switching or recover to the prefault state. The invention can remarkably improve the sensitivity and stability of the channel switching of the generator excitation regulating device, so as to improve the operational reliability of the excitation regulating device.
Description
Technical field
The present invention relates to a kind of control device of generator, especially relate to a kind of generator excitation adjusting device passageway switching method.Belong to the power automation technical field.
Background technology
Generator excitation adjusting device is in order to improve reliability, often take the binary channels redundant fashion, treatment channel is switched the following three kinds of modes that mainly contain at present: (1) 2: 1 ballot systems, promptly except two passage places, also have a ruling passage, passage switches by the ballot ruling; (2) the main received shipment of binary channels one is capable, and that main channel self detects is soft, withdraw from automatically after the hardware fault, by relay and communication alternate channel is had disturbance ground simultaneously and drops into, and whether the main channel is withdrawed from is fully judged by self; (3) binary channels one a main received shipment is capable, and the main channel judges that self having fault or alternate channel to judge all carries out the primary channel switching when there is fault the main channel.External producer adopts mode (1) mostly, and domestic manufacturer adopts mode (2) mostly, and part domestic manufacturer adopts mode (3).These three kinds of switching modes cut both ways: mode (1) is the most reasonable in principle, but relative complex, the fault point is more; Mode (2) is simple relatively, but requires the main channel to judge that faults itself is reliable fully, otherwise can occur the main channel loss of excitation or mistake encourage by force, do not switch to the situation of alternate channel yet; Mode (3) alternate channel participates in judging whether the main channel is normal, has increased a criterion than mode (2), and sensitivity has improved, and is normally missed the situation of cutting by alternate channel originally but the main channel may occur, and reliability has reduced.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of sensitivity and reliable channel switching technology, thereby improve the operational reliability of excitation regulation device.
At present both at home and abroad three kinds of channel switching technologies mainly adopting of generator excitation adjusting device are realized the principle differences, and pluses and minuses are respectively arranged, but purpose all is that generator excitation is not out of control in order to guarantee normally to move, and all requires the passage switching judging sensitive and reliable.
In order to solve the deficiencies in the prior art, according to above-mentioned design philosophy, the present invention is achieved by the following technical solutions:
A kind of generator excitation adjusting device passageway switching method, it is characterized in that: passage switches the following mode of taking: 1) one main one is equipped with the binary channels operation, passage switches to be judged by the main channel fully, alternate channel does not participate in the main channel fault judgement, in case the main channel determines faults itself, if alternate channel is in running status, then switch to alternate channel, encourage fully or this path manual operational mode otherwise switch to; 2) primary channel working power, analog acquisition, switching value processing, CPU module, that pulse generates each link is independent fully, only be connected in parallel at the pulse output, have only the pulse of main channel just to be dealt on the power device, passage switches the switching of just exporting between the pulse; 3) the passage switching is correctly switched based on the logical relation of the multiple determination strategy between 422 communications, the relay node; 4) adopt real-time, polymorphic type detection judgment technology, when alternate channel is followed the tracks of main channel information, adopt multiple target tracking technique simultaneously, comprise main channel variable and system variable, thoroughly prevent loss of exicitation and the generation of by mistake encouraging by force; When 5) alternate channel is followed the tracks of the main channel, follow the tracks of the input and output result that automatic AVR regulates, manual ECR regulates, also follow the tracks of the inside link value of control algolithms such as PID intermediate variable simultaneously by the method for inverse excitation regulation rule.
Aforesaid generator excitation adjusting device passageway switching method, when it is characterized in that alternate channel is followed the tracks of the main channel, adopt smothing filtering technology and inertial element, filtering error message and reduce the sudden change influence of tracking amount automatically guarantees to switch no disturbance or with the preceding state consistency of fault.
The invention has the beneficial effects as follows: the present invention can significantly improve sensitivity, the stability that the generator excitation adjusting device passage switches, thereby improves the operational reliability of excitation regulation device.
Description of drawings
Fig. 1 is the schematic diagram of generator excitation adjusting device passageway switching method of the present invention at the southern embodiment who realizes of state's electricity on PSVR 100 generator excitation adjusting devices.
Embodiment
Fig. 1 is the schematic diagram of generator excitation adjusting device passageway switching method of the present invention at the southern embodiment who implements of state's electricity on PSVR 100 generator excitation adjusting devices.Below in conjunction with accompanying drawing the present invention is done concrete introduction.
The present invention is when handling the switching of PSVR 100 passages, taked following technology: passage switches the following mode of taking: 1) one main one is equipped with the binary channels operation, in case the main channel determines faults itself, if alternate channel is in running status, then switch to alternate channel, encourage fully or this path manual operational mode otherwise switch to.Alternate channel does not participate in the main channel fault judgement; 2) primary channel is independent fully, only is connected in parallel at the pulse output, switches the switching of just exporting between the pulse; 3) the passage switching is correctly switched based on the logical relation of the multiple determination strategy between 422 communications, the relay node; 4) main channel comprises that any fault of deadlock all can be judged fast and with self excision, changes to alternate channel and moves; 5) adopt real-time, polymorphic type detection judgment technology, thoroughly prevent the generation that loss of exicitation and mistake are encouraged by force; When 6) alternate channel is followed the tracks of main channel information, adopt multiple target tracking technique simultaneously, comprise main channel variable and system variable 7) when alternate channel is followed the tracks of the main channel, follow the tracks of the input and output result that automatic AVR regulates, manual ECR regulates, also follow the tracks of the inside link value of control algolithms such as PID intermediate variable simultaneously by the method for inverse excitation regulation rule; When 8) alternate channel is followed the tracks of the main channel, adopt smothing filtering technology and inertial element, filtering error message and reduce the sudden change influence of tracking amount automatically guarantees to switch no disturbance or with the preceding state consistency of fault.
The foregoing description does not limit the present invention in any form, and all technical schemes that mode obtained of taking to be equal to replacement or equivalent transformation all drop in protection scope of the present invention.
Claims (2)
1. generator excitation adjusting device passageway switching method, it is characterized in that: passage switches the following mode of taking: 1) one main one is equipped with the binary channels operation, passage switches to be judged by the main channel fully, alternate channel does not participate in the main channel fault judgement, in case the main channel determines faults itself, if alternate channel is in running status, then switch to alternate channel, encourage fully or this path manual operational mode otherwise switch to; 2) primary channel working power, analog acquisition, switching value processing, CPU module, that pulse generates each link is independent fully, only be connected in parallel at the pulse output, have only the pulse of main channel just to be dealt on the power device, passage switches the switching of just exporting between the pulse; 3) the passage switching is correctly switched based on the logical relation of the multiple determination strategy between 422 communications, the relay node; 4) adopt real-time, polymorphic type detection judgment technology, when alternate channel is followed the tracks of main channel information, adopt multiple target tracking technique simultaneously, comprise main channel variable and system variable, thoroughly prevent loss of exicitation and the generation of by mistake encouraging by force; When 5) alternate channel is followed the tracks of the main channel, follow the tracks of the input and output result that automatic AVR regulates, manual ECR regulates, also pass through the inside link value of the method tracking control algorithm of inverse excitation regulation rule simultaneously.
2. generator excitation adjusting device passageway switching method according to claim 1, when it is characterized in that alternate channel is followed the tracks of the main channel, adopt smothing filtering technology and inertial element, automatically filtering error message and reduce the sudden change influence of tracking amount guarantees to switch no disturbance or with the preceding state consistency of fault.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101308043A CN101145752B (en) | 2007-08-17 | 2007-08-17 | Channel switching technology of generator excitation adjusting device |
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| CN2007101308043A CN101145752B (en) | 2007-08-17 | 2007-08-17 | Channel switching technology of generator excitation adjusting device |
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| CN101145752A CN101145752A (en) | 2008-03-19 |
| CN101145752B true CN101145752B (en) | 2010-06-02 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664420A (en) * | 2012-05-09 | 2012-09-12 | 河北省电力研究院 | Method for judging reactive power oscillation source of power grid |
| CN103150242B (en) * | 2012-12-27 | 2016-06-22 | 中国航空工业集团公司第六三一研究所 | The F/S type definite indicating circuit of computer internal fault |
| CN103780190B (en) * | 2014-01-16 | 2017-01-18 | 南京南瑞继保电气有限公司 | Generator faulty force excitation detection method and device |
| CN108512470B (en) * | 2018-04-10 | 2019-10-18 | 华南理工大学 | Synchronous generator switched energization control method based on switch control |
| CN112467755B (en) * | 2019-09-09 | 2022-09-23 | 南京南瑞继保工程技术有限公司 | Online tracking and switching method and device for excitation system of magnetic control type controllable shunt reactor |
| CN111198545B (en) * | 2019-12-24 | 2021-05-04 | 重庆特斯联智慧科技股份有限公司 | Intelligent building indoor air environment maintenance system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1363991A (en) * | 2002-01-31 | 2002-08-14 | 广西大学 | Multi-target non-linear anti-interference exciting control method and device for electric generator |
| CN2792019Y (en) * | 2005-04-11 | 2006-06-28 | 西安理工大学 | Trigger switching circuit for two-channel exciting device for synchrounous generator set |
| CN1913339A (en) * | 2006-09-05 | 2007-02-14 | 四川东风电机厂有限公司 | PLC silicon-controlled static exciting system of synchronous generater |
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2007
- 2007-08-17 CN CN2007101308043A patent/CN101145752B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1363991A (en) * | 2002-01-31 | 2002-08-14 | 广西大学 | Multi-target non-linear anti-interference exciting control method and device for electric generator |
| CN2792019Y (en) * | 2005-04-11 | 2006-06-28 | 西安理工大学 | Trigger switching circuit for two-channel exciting device for synchrounous generator set |
| CN1913339A (en) * | 2006-09-05 | 2007-02-14 | 四川东风电机厂有限公司 | PLC silicon-controlled static exciting system of synchronous generater |
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Assignee: Nanjing Guodian Nanzi Electric Power Automation Co. Ltd. Assignor: Nanjing Automation Co., Ltd., China Electronics Corp. Contract record no.: 2012320000075 Denomination of invention: Channel switching technology of generator excitation adjusting device Granted publication date: 20100602 License type: Exclusive License Open date: 20080319 Record date: 20120216 |
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Assignee: Nanjing Guodian Nanzi Electric Power Automation Co. Ltd. Assignor: Nanjing Automation Co., Ltd., China Electronics Corp. Contract record no.: 2012320000075 Date of cancellation: 20140214 |
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Application publication date: 20080319 Assignee: Nanjing Guodian Nanzi Meizhuo Control System Co.,Ltd. Assignor: Nanjing Automation Co., Ltd., China Electronics Corp. Contract record no.: 2014320000259 Denomination of invention: Channel switching technology of generator excitation adjusting device Granted publication date: 20100602 License type: Exclusive License Record date: 20140326 |
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Change date: 20171113 Contract record no.: 2014320000259 Assignee after: Nanjing Guodian Nanzi 710086 Automation Co. Ltd. Assignee before: Nanjing Guodian Nanzi Meizhuo Control System Co.,Ltd. |