CN101964544B - Method for monitoring operation state of HVDC converter valve thyristor level - Google Patents
Method for monitoring operation state of HVDC converter valve thyristor level Download PDFInfo
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- CN101964544B CN101964544B CN201010288417.4A CN201010288417A CN101964544B CN 101964544 B CN101964544 B CN 101964544B CN 201010288417 A CN201010288417 A CN 201010288417A CN 101964544 B CN101964544 B CN 101964544B
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- 238000012544 monitoring process Methods 0.000 title abstract description 4
- 238000004891 communication Methods 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 7
- 230000000630 rising effect Effects 0.000 claims description 2
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Abstract
This invention discloses a method for monitoring an operation state of an HVDC converter valve thyristor level. This invention designs a full set of communication protocols and an encoding mode between the HVDC converter valve thyristor level and a valve base electronic device and proposes a counting method for operation state information of the thyristor level by the valve base electronic device and relates to a fault information judgment strategy to prevent the information of a gate unit from misreporting.
Description
Technical field
The present invention relates to high voltage direct current transmission (HVDC) field, particularly a kind of supervision method of novel HVDC converter valve thyristor level operation conditions.
Background technology
In high voltage direct current transmission, the whole secondary supervisory control system of current conversion station utmost point control system, valve-based electronic device of converter valve and thyristor level gate pole cell formation converter valve.Gate pole unit monitors one-level thyristor, and the running status of this thyristor of real-time report valve base electronic device level.Valve base electronic device gathers all gate pole unit informations, after comprehensive judgement, reports utmost point control system.The system command of valve base electronic device receiving pole control simultaneously sends control command to gate pole unit.
The present invention proposes a kind of a complete set of monitoring strategies for converter valve thyristor level being applied on gate pole unit and valve base electronic device.This strategy has been stipulated a complete set of communication protocol, the coded system between thyristor level and valve base electronic device, the read data mode that has proposed a kind of bus-sharing is added up thyristor level running state information, and for preventing the fault message determination strategy of a kind of timing counting that the information wrong report of gate pole unit adopts.This supervision method is concisely clear, has avoided the hidden fault point being brought by unnecessary Functional Design.
Summary of the invention
The object of the invention is to propose a kind of supervision method of novel HVDC converter valve thyristor level operation conditions.
The present invention has designed a complete set of communication protocol, the coded system between HVDC converter valve thyristor level and valve base electronic device, the statistical method of a kind of valve base electronic device to thyristor level running state information proposed, and a kind of fault message determination strategy for preventing that the information wrong report of gate pole unit from adopting.
The advantage of technical solution of the present invention is:
1, succinct gate pole unit and the coding stipulations between valve base electronic device
2, the monitoring method of reliable gate pole reported information.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 shows signal relation figure.
Fig. 2 shows the data flowchart between control board and check-out console.
Embodiment
Thyristor supervision method of the present invention is: the serial of valve base electronic device receiving pole control system triggers coded command, and the triggering coding that transfers two pulses after decoding to sends to the gate pole unit of each thyristor level.Each gate pole unit reports the running status return of current thyristor to encode to the check-out console being positioned on valve base electronic device of correspondence.Every corresponding 6 the thyristor levels of check-out console on valve base electronic device, on check-out console, microcontroller is opened up optical channel return detection window, FOP return detection window, is got energy good detection window according to triggering enable signal, and the pulse signal occurring in corresponding detection window judges that this return appears in thyristor level.Concrete windowing method is:
1. the 1st rising edge of a pulse that triggers dipulse of take is top, and the pulse trailing edge that stops triggering of take is end, and the 10uS pulse detecting between this window phase is considered as FOP actuating signal.
2. the trailing edge that stops triggering pulse of take is top, and the optical channel that detects TTM return in the window of time delay tens microseconds detects pulse.
3. the pulse of the 10uS detecting beyond above two windows is that TTM gets enough the returning of energy.
For avoiding the wrong report of gate pole unit, valve base electronic device adopts the method judgement return of timing counting, if same passage in 6 cycles of accumulative total is without return, thinks this channel failure.Master control borad reads and gathers the thyristor operation information of whole valve tower by data/address bus.Signal relation is shown in accompanying drawing 1.Master control borad adopts the mode of bus-sharing to read the reporting information of check-out console.Detection system is divided into one group by every 3 check-out consoles, every group of corresponding 18 thyristor levels of check-out console, and 3 position datawires of public master control borad.5 bit address lines of the public master control borad of all check-out consoles are used as the foundation of channel selecting.Address wire adopts displacement code once to select 1 to 18 sense channel of every group of check-out console.This method makes master control borad in the cycle, can read at least 6 channel datas at a read data.So greatly shortened the cycle of Data Update.
The distribution of data wire is in Table 1.
| Data bit | Corresponding board |
| D0～D2 | Check-out console 1,2,3 |
| D3～D5 | Check-out console 4,5,6 |
| D6～D8 | Check-out console 7,8,9 |
| D9～D11 | Check-out console 10,11 |
| D12～D14 | Check-out |
The corresponding check-out console number of table 1 data bit
The optical channel testing process shown in Fig. 2 of take is example, and master control borad is sequentially read the detection report information of each passage and is stored in specific memory space by the mode of bus-sharing.Then by therefrom extracting optical channel data with logic.With follow statement to data by normally whether carrying out timing statistics.If do not receive continuously within a certain period of time, optical channel reward data judges that this passage damages.After this call communication program record is carried out in problem thyristor level position.Control again and when protection system was called out the VBE cycle of carrying out, report the fault message detecting.
According to specific exemplary embodiment, invention has been described herein.It will be apparent under not departing from the scope of the present invention, carrying out to one skilled in the art suitable replacement or revise.Exemplary embodiment is only illustrative, rather than the restriction to scope of the present invention, and scope of the present invention is defined by appended claim.
Claims (2)
1. the supervision method of a novel HVDC converter valve thyristor level operation conditions, it is characterized in that: the method has been stipulated a complete set of communication protocol, the coded system between thyristor level and valve base electronic device, the read data mode that has proposed a kind of bus-sharing is added up thyristor level running state information, and for preventing the fault message determination strategy of a kind of timing counting that the information wrong report of gate pole unit adopts;
Communication protocol between described thyristor level and valve base electronic device is: the serial of valve base electronic device receiving pole control system triggers coded command, and the triggering coding that transfers two pulses after decoding to sends to the gate pole unit of each thyristor level; Each gate pole unit reports the running status return of current thyristor to encode to the check-out console being positioned on valve base electronic device of correspondence; Every corresponding 6 the thyristor levels of check-out console on valve base electronic device, on check-out console, microcontroller is opened up optical channel return detection window, FOP return detection window, is got energy good detection window according to triggering enable signal, and the pulse signal occurring in corresponding detection window judges that this return appears in thyristor level; Concrete windowing method is:
1. the 1st rising edge of a pulse that triggers dipulse of take is top, and the pulse trailing edge that stops triggering of take is end, and the 10uS pulse detecting between this window phase is considered as FOP actuating signal;
2. the trailing edge that stops triggering pulse of take is top, and the optical channel that detects TTM return in the window of time delay tens microseconds detects pulse;
3. the pulse of the 10uS detecting beyond above two windows is that TTM gets enough the returning of energy.
2. the supervision method of a kind of novel HVDC converter valve thyristor level operation conditions as claimed in claim 1, it is characterized in that: for preventing the information wrong report of gate pole unit, valve base electronic device adopts the method judgement return of timing counting, in accumulative total 6 cycles, same passages are without return, think this channel failure; Master control borad reads and gathers the thyristor operation information of whole valve tower by data/address bus.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010288417.4A CN101964544B (en) | 2010-09-20 | 2010-09-20 | Method for monitoring operation state of HVDC converter valve thyristor level |
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| CN201010288417.4A CN101964544B (en) | 2010-09-20 | 2010-09-20 | Method for monitoring operation state of HVDC converter valve thyristor level |
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| CN101964544B true CN101964544B (en) | 2014-03-12 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195285B (en) * | 2011-03-16 | 2013-11-06 | 中国电力科学研究院 | Method for interfacing between valve base control device and upper automatic device |
| CN106646099B (en) * | 2015-10-29 | 2019-06-14 | 全球能源互联网研究院 | A kind of D.C. high voltage transmission TTM board faults positioning system and its Fault Locating Method |
| CN106647321B (en) * | 2015-10-29 | 2019-09-06 | 全球能源互联网研究院 | A kind of D.C. high voltage transmission thyristor grade equivalent simulation equipment |
| CN105703481B (en) * | 2016-03-03 | 2018-03-30 | 南京南瑞继保电气有限公司 | A kind of equal pressure condition uniformity statistical method of converter valve |
| CN105826913B (en) * | 2016-04-29 | 2018-09-21 | 南方电网科学研究院有限责任公司 | Control method of direct current transmission system converter valve and valve base electronic equipment |
| CN107202947B (en) * | 2017-05-26 | 2019-11-12 | 国网四川省电力公司电力科学研究院 | A kind of efficient thyristor valves component test system and test method |
| CN109239564B (en) * | 2017-07-10 | 2021-02-26 | 南京南瑞继保电气有限公司 | Thyristor test system based on cooperation of software logic functions |
| CN108051725B (en) * | 2017-10-31 | 2019-12-06 | 国网浙江省电力有限公司检修分公司 | Converter station valve tower thyristor positioning system and working method thereof |
| CN109613425B (en) * | 2019-01-02 | 2022-03-22 | 西安西电电力系统有限公司 | Converter valve testing system and method |
| CN110850210B (en) * | 2019-11-18 | 2022-03-04 | 全球能源互联网研究院有限公司 | Direct current transmission converter valve base electronic device and system |
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| US4177507A (en) * | 1978-03-22 | 1979-12-04 | General Electric Company | Method and control for maintaining optimum performance of HVDC power transmission systems at rectifier end during A. C. system fault |
| CN101588061A (en) * | 2008-12-31 | 2009-11-25 | 中国电力科学研究院 | Thyristor valve triggering and monitoring system for fault current limiter |
| CN101726640A (en) * | 2009-12-23 | 2010-06-09 | 中国电力科学研究院 | Control and protection system of converter valve operating test device |
| CN101741225A (en) * | 2009-12-23 | 2010-06-16 | 中国电力科学研究院 | Novel valve base electronic device of direct current converter valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19620442A1 (en) * | 1996-05-21 | 1997-11-27 | Siemens Ag | Inverter system |
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- 2010-09-20 CN CN201010288417.4A patent/CN101964544B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4177507A (en) * | 1978-03-22 | 1979-12-04 | General Electric Company | Method and control for maintaining optimum performance of HVDC power transmission systems at rectifier end during A. C. system fault |
| CN101588061A (en) * | 2008-12-31 | 2009-11-25 | 中国电力科学研究院 | Thyristor valve triggering and monitoring system for fault current limiter |
| CN101726640A (en) * | 2009-12-23 | 2010-06-09 | 中国电力科学研究院 | Control and protection system of converter valve operating test device |
| CN101741225A (en) * | 2009-12-23 | 2010-06-16 | 中国电力科学研究院 | Novel valve base electronic device of direct current converter valve |
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