CN103257577A - Inverter maximum fire angle control simulation device - Google Patents
Inverter maximum fire angle control simulation device Download PDFInfo
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- CN103257577A CN103257577A CN2013101067983A CN201310106798A CN103257577A CN 103257577 A CN103257577 A CN 103257577A CN 2013101067983 A CN2013101067983 A CN 2013101067983A CN 201310106798 A CN201310106798 A CN 201310106798A CN 103257577 A CN103257577 A CN 103257577A
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Abstract
The invention belongs to the field of electrical measuring, and particularly relates to an inverter maximum fire angle control simulation device used for simulation research of direct current control protecting systems of direct current high-voltage transmission equipment. The inverter maximum fire angle control simulation device comprises a sixth inertia element, a first trigonometric function element, a speed limiting device, a third trigonometric function element, a first arithmetic operation element, a second arithmetic operation element and a third arithmetic operation element. The input end of the sixth inertia element is connected to a signal input end through the first arithmetic operation element, and the output end of the sixth inertia element and the output end of the first trigonometric function element are combined through the second arithmetic operation element and then connected to the input end of the speed limiting device. The output end of the speed limiting device is connected to an inverter maximum fire angle signal end through the third trigonometric function element and the third arithmetic operation element in sequence. The inverter maximum fire angle control simulation device can truly simulate and reflect the operating states of direct current control protecting devices, and provides corresponding simulation results for the research or the design of the direct current control protecting devices.
Description
Technical field
The invention belongs to the electric measurement field, relate in particular to a kind of maximum trigger angle control simulation testing device of inverter of the DC control protection system simulation research for high-voltage direct-current transmission system.
Background technology
The continuous growth of electricity needs has caused transmission system to develop to the direction of growing distance, big capacity and high stability.Along with the ultra-high voltage AC transmission engineering in each electrical network zone and the construction project of high voltage direct current transmission project constantly increase, the electrical network of power consumption concentrated area presents the extra-high voltage alternating current-direct current series-parallel connection receiving end electrical network feature of tangible many direct currents feed-in, electric network composition is tight, electrical distance is tightr between many ac and dc circuits, behind extra-high voltage and the UHV (ultra-high voltage) fault in ac transmission system, easily cause and comprise high voltage direct current at many interior direct currents while commutation failures, and its rejuvenation of the commutation failure of many times direct currents will produce greater impact to AC system, if the recovery policy mismate of each straight-flow system, then also might cause many direct currents that continuous commutation failure takes place simultaneously, even cause the direct current locking.Many times bipolar locking takes place in direct current simultaneously, and a large amount of trends shift or on a large scale with the initiating system stable problem.Reciprocation between this ac and dc systems brings huge challenge for the safe operation of extra-high voltage alternating current-direct current series-parallel connection receiving end electrical network.
Therefore, in research or the design phase of high voltage direct current transmission project, must test and emulation for the stability of extra-high voltage alternating current-direct current series-parallel connection receiving end electrical network to the reciprocation between ac and dc systems, and with reference to test and simulation result, result to research or design verifies, the stability of system is assessed.China's utility model patent " a kind of many feed-ins DC transmission system real-timedigital simulation model " (utility model patent number: ZL201210532559.X Granted publication number: CN102945004A) disclose many feed-ins DC transmission system real-timedigital simulation model, it comprises the equivalent super high voltage direct current electricity transmission system of a plurality of parallel connections, and described super high voltage direct current electricity transmission system comprises primary system real-timedigital simulation model and electrical secondary system real-timedigital simulation model; Described primary system real-timedigital simulation model comprises current conversion station and DC power transmission line, and described current conversion station is arranged on the two ends of DC power transmission line; Described electrical secondary system real-timedigital simulation model comprises current conversion station control system and protection system, and described current conversion station control system is connected with current conversion station with protection system, is used for the operation of control and protection current conversion station.By control and the protection to the current conversion station operation of current conversion station control system and protection system, avoid easily causing behind the fault in ac transmission system impact that many times direct current simultaneous faultss and many times direct current faults and rejuvenation thereof produce AC system.But this realistic model does not relate to the emulation of the maximum trigger angle control of inverter, truly the maximum trigger angle control running status of the inverter of simulated high-pressure direct current transportation DC control protection system.
Summary of the invention
The objective of the invention is to provide a kind of inverter maximum trigger angle control simulator; it can simulate the maximum trigger angle control state of inverter of reflection D.C. high voltage transmission DC control protection system truly; for the maximum trigger angle control research of the inverter of DC control protective device or design provide corresponding simulation result, solve to the maximum trigger angle control research of the inverter of DC control protective device or design the technical matters that verification platform is provided.
The present invention solves the problems of the technologies described above the technical scheme that adopts:
The maximum trigger angle control simulator of a kind of inverter is arranged in the transverter trigger angle control device of DC control protection system, is used for the emulation of the DC control protection system of high-voltage direct-current transmission system, it is characterized in that:
The maximum trigger angle control simulator of described inverter comprises the 6th inertance element, the first trigonometric function element, speed limiting device, the 3rd trigonometric function element and first to the 3rd arithmetic arithmetic element;
The input end of described the 6th inertance element, be connected to the input signal end by the first arithmetical operation element, the output terminal of described the 6th inertance element and the first trigonometric function element after the merging of the second arithmetical operation element, is connected to the input end of described speed limiting device; The output terminal of described speed limiting device successively by described the 3rd trigonometric function element and the 3rd arithmetic arithmetic element, is connected to the maximum angle signal end that triggers of inverter.
A kind of preferable technical scheme of the maximum trigger angle control simulator of inverter of the present invention, it is characterized in that the maximum trigger angle control simulator of described inverter also comprises the 7th inertance element, the 3rd extreme value selector switch, the second trigonometric function element and the 4th to the 6th arithmetical operation element; The input end of described the 7th inertance element is connected to the input signal end, the output terminal of described the 7th inertance element and the 3rd extreme value selector switch, by the 4th arithmetical operation element and the 5th arithmetical operation element, be connected to the input end of the described second arithmetical operation element and the 6th arithmetical operation element successively; The output terminal of described the 6th arithmetical operation element is connected to the lower limit input end of described speed limiting device.
The invention has the beneficial effects as follows:
1. the maximum trigger angle control running status of inverter of DC control protective device can be simulated, be reflected to the maximum trigger angle control simulator of inverter of the present invention truly, for research or the design of DC control protective device provides corresponding simulation result;
2. the maximum trigger angle control simulator of inverter of the present invention has the advantage of cross-platform emulation testing, both can realize with actual components in true environment, can realize with computer software in virtual environment again;
Description of drawings
Fig. 1 is the theory diagram for the simulator of DC control protection system;
Fig. 2 is the circuit theory diagrams of the maximum trigger angle control simulator of inverter of the present invention.
The label of each parts among the above figure: 100-high-voltage direct-current transmission system; 110-alternating current filter switching device; the 120-converter power transformer; 130-thyristor converter device; the 200-control module; 210-angle, current/voltage reference value calculation element; 220-transverter trigger angle control device; 230-trigger pulse generation device, 240-change of current variation apparatus for controlling connection, 250-utmost point output control device; the 260-overload control apparatus; 270-Reactive Power Control device, 300-dc system protection unit, 900-operation control workstation.2226-the 6th inertance element, 2227-the 7th inertance element, 2243-the 3rd extreme value selector switch, 2251～2256-, first to the 6th arithmetical operation element, the 2262-speed limiting device, 2271～2273-, first to the 3rd trigonometric function element, the maximum angle signal end that triggers of ALPHA_MAX-inverter.
Embodiment
In order to understand technique scheme of the present invention better, be explained in further detail below in conjunction with drawings and Examples.
Fig. 2 has showed an embodiment of the maximum trigger angle control simulator of inverter of the present invention, is connected in the transverter trigger angle control device of DC control protection system, is used for the emulation of the DC control protection system of high-voltage direct-current transmission system.One of basic functional units of the transverter trigger angle control device 220 that the maximum trigger angle control simulator of inverter of the present invention is the DC control protection system.The simulator of the DC control protection system of high-voltage direct-current transmission system as shown in Figure 1.
As shown in Figure 2, the maximum trigger angle control simulator of inverter of the present invention comprises the 6th inertance element 2226, the first trigonometric function elements 2271, speed limiting device 2262, the three trigonometric function elements 2273 and first to the 3rd arithmetic arithmetic element 2251～2253;
The input end of the 6th inertance element 2226, be connected to input signal end IORD_LIM by the first arithmetical operation element 2251, the output terminal of the 6th inertance element 2226 and the first trigonometric function element 2271, after 2252 merging of the second arithmetical operation element, be connected to the input end of speed limiting device 2262; The output terminal of speed limiting device 2262 successively by the 3rd trigonometric function element 2273 and the 3rd arithmetic arithmetic element 2253, is connected to the maximum angle signal end ALPHMAX that triggers of inverter.
According to embodiment shown in Figure 2, the maximum trigger angle control simulator of inverter of the present invention also comprises the 7th inertance element 2227, the three extreme value selector switchs, 2243, the second trigonometric function elements 2272 and the 4th to the 6th arithmetical operation element 2254～2256; The input end of the 7th inertance element 2227 is connected to the input signal end, the output terminal of the 7th inertance element 2227 and the 3rd extreme value selector switch 2243, by the 4th arithmetical operation element 2254 and the 5th arithmetical operation element 2255, be connected to the input end of the second arithmetical operation element 2252 and the 6th arithmetical operation element 2256 successively; The output terminal of the 6th arithmetical operation element 2256 is connected to the lower limit input end of speed limiting device 2262.
The main effect of the maximum trigger angle control simulator of inverter of the present invention is to guarantee transverter under the transient state situation, and the inversion side has the positive slope characteristic, is conducive to system in the stable and recovery that stands under the disturbance situation.
Those of ordinary skill in the art will be appreciated that; above embodiment illustrates technical scheme of the present invention; and be not to be used as limitation of the invention; any variation, modification of the above embodiment being done based on connotation of the present invention all will drop in the protection domain of claim of the present invention.
Claims (2)
1. the maximum trigger angle control simulator of inverter is arranged in the transverter trigger angle control device of DC control protection system, is used for the emulation of the DC control protection system of high-voltage direct-current transmission system, it is characterized in that:
The maximum trigger angle control simulator of described inverter comprises the 6th inertance element, the first trigonometric function element, speed limiting device, the 3rd trigonometric function element and first to the 3rd arithmetic arithmetic element;
The input end of described the 6th inertance element, be connected to the input signal end by the first arithmetical operation element, the output terminal of described the 6th inertance element and the first trigonometric function element after the merging of the second arithmetical operation element, is connected to the input end of described speed limiting device; The output terminal of described speed limiting device successively by described the 3rd trigonometric function element and the 3rd arithmetic arithmetic element, is connected to the maximum angle signal end that triggers of inverter.
2. the maximum trigger angle control simulator of inverter according to claim 1, it is characterized in that the maximum trigger angle control simulator of described inverter also comprises the 7th inertance element, the 3rd extreme value selector switch, the second trigonometric function element and the 4th to the 6th arithmetical operation element; The input end of described the 7th inertance element is connected to the input signal end, the output terminal of described the 7th inertance element and the 3rd extreme value selector switch, by the 4th arithmetical operation element and the 5th arithmetical operation element, be connected to the input end of the described second arithmetical operation element and the 6th arithmetical operation element successively; The output terminal of described the 6th arithmetical operation element is connected to the lower limit input end of described speed limiting device.
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| CN2013101067983A CN103257577A (en) | 2013-03-29 | 2013-03-29 | Inverter maximum fire angle control simulation device |
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| CN2013101067983A CN103257577A (en) | 2013-03-29 | 2013-03-29 | Inverter maximum fire angle control simulation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106549389A (en) * | 2016-11-10 | 2017-03-29 | 中国电力科学研究院 | A kind of direct current minimum trigger angle limiter clipping parameter optimization method |
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| SU1473031A1 (en) * | 1987-01-28 | 1989-04-15 | Каунасский Политехнический Институт Им.Антанаса Снечкуса | Method of measuring the switching angle in thyratron converters |
| GB2295506A (en) * | 1994-11-24 | 1996-05-29 | Gec Alsthom Ltd | HVDC converter control |
| CN1881202A (en) * | 2005-06-16 | 2006-12-20 | 许继集团有限公司 | Simulation system and simulation method for high voltage AC and DC power transmission training |
| WO2009110648A1 (en) * | 2008-03-06 | 2009-09-11 | Jun Sung Electronics Co., Ltd | Converter for hvdc |
| CN101752873A (en) * | 2010-01-25 | 2010-06-23 | 株洲变流技术国家工程研究中心有限公司 | Protection method of DC electricity transmission high-voltage convertor station |
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| CN203133500U (en) * | 2013-03-29 | 2013-08-14 | 国家电网公司 | Inverter maximum firing angle control simulation device |
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2013
- 2013-03-29 CN CN2013101067983A patent/CN103257577A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| SU1473031A1 (en) * | 1987-01-28 | 1989-04-15 | Каунасский Политехнический Институт Им.Антанаса Снечкуса | Method of measuring the switching angle in thyratron converters |
| GB2295506A (en) * | 1994-11-24 | 1996-05-29 | Gec Alsthom Ltd | HVDC converter control |
| CN1881202A (en) * | 2005-06-16 | 2006-12-20 | 许继集团有限公司 | Simulation system and simulation method for high voltage AC and DC power transmission training |
| WO2009110648A1 (en) * | 2008-03-06 | 2009-09-11 | Jun Sung Electronics Co., Ltd | Converter for hvdc |
| CN102549872A (en) * | 2009-06-18 | 2012-07-04 | Abb技术有限公司 | Controlling an inverter device of a high voltage DC system for supporting an AC system |
| CN101752873A (en) * | 2010-01-25 | 2010-06-23 | 株洲变流技术国家工程研究中心有限公司 | Protection method of DC electricity transmission high-voltage convertor station |
| CN203133500U (en) * | 2013-03-29 | 2013-08-14 | 国家电网公司 | Inverter maximum firing angle control simulation device |
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| 熊凌飞: "HVDC换流阀触发控制模型研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106549389A (en) * | 2016-11-10 | 2017-03-29 | 中国电力科学研究院 | A kind of direct current minimum trigger angle limiter clipping parameter optimization method |
| CN106549389B (en) * | 2016-11-10 | 2022-04-29 | 中国电力科学研究院 | Amplitude limiting parameter optimization method for direct-current minimum trigger angle limiter |
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Application publication date: 20130821 |