CN102004212A - Equivalent load device of direct current converter valve multiple valve tests - Google Patents
Equivalent load device of direct current converter valve multiple valve tests Download PDFInfo
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- CN102004212A CN102004212A CN201010508225XA CN201010508225A CN102004212A CN 102004212 A CN102004212 A CN 102004212A CN 201010508225X A CN201010508225X A CN 201010508225XA CN 201010508225 A CN201010508225 A CN 201010508225A CN 102004212 A CN102004212 A CN 102004212A
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Abstract
The invention relates to an equivalent load device of direct current converter valve multiple valve tests, which is an equivalent load member, wherein the equivalent load member comprises a resistor branch load, a resistor-resistance-capacitance parallel connection branch load, a shielding cover and a base, the equivalent load member is also designed into a voltage divider structure, a lower pressure arm of the voltage divider is arranged inside the base, an upper part load of the base is divided into five parts: (A), (B), (C), (D) and (E), wherein the part (E) can be in short circuit, the part (A), the part (B) and the part (C) are respectively provided with three short circuit points, the bottom end of the equivalent load member is grounded, and the top end of the equivalent load member and the top end of a valve tower of a duplex valve are connected in series to form a multiple valve. The equivalent load device can be used for accurately measuring the voltage distribution in the tests, is convenient to regulate and can bear the tests of the maximum voltage level of +/-800kV.
Description
Technical field
The present invention relates to the equivalent load device in a kind of power equipment test field, specifically relate to a kind of DC converter valve multiplex valve test equivalent load device.
Background technology
Fast development along with the construction of ultra-high/extra-high voltage DC transmission engineering, the Test Research of the nucleus equipment DC converter valve of direct current transportation and the development requirement of test unit strengthen day by day, at present domestic development ± 500kV emphatically, ± 660kV, ± 800kV or the transmission line of electricity of voltage levels more.
For the test of DC converter valve engineering multiplex valve, requirement is made of 3 in the phase transverter vertically arranged identical single valves, but because the progressively rising of electric pressure, single valve weight is also more and more heavier, directly the triple valve towers of suspention are for the height of experiment field, insulation distance, the requirement of load-bearing etc. are all very high, and studying a kind of equivalent load device that can equivalent single valve this moment becomes the key point and the difficult point of multiplex valve test.
Summary of the invention
The objective of the invention is the problems referred to above that prior art is existed, provide a kind of can be in the test of DC converter valve multiplex valve the equivalent load device of equivalent single valve.
DC converter valve multiplex valve test equivalent load device provided by the invention, its improvements are: described device is an equivalent load part, described equivalent load part comprises resistance branch load, resistance-capacitance-resistance parallel branch load, radome and base; Described equivalent load part also is designed to voltage divider arrangement, and the low-voltage arm of its voltage divider is installed in base inside, and the base upper load is divided into A, B, C, D, E five parts, but E part short circuit wherein, and A, B, C three parts are provided with three short circuit points respectively; Described equivalent load part bottom ground connection; Described equivalent load part top and double valve valve cat head end serial connection form multiplex valve.
A kind of optimal technical scheme provided by the invention: be connected in parallel between the described resistance branch load.
Another kind of optimal technical scheme provided by the invention: described resistance branch load and resistance-capacitance-resistance parallel branch load is connected in parallel.
Compared with prior art, the beneficial effect of technical scheme provided by the invention is:
When carrying out the multiplex valve test, constitute multiple valve unit by 2 in the phase transverter vertically arranged identical single valves and equivalent load, multiple valve unit equivalent load part should get at the trial trial voltage 1/3 (during the 800kV electric pressure equivalent load get voltage 2/3), get on the double valve valve tower trial voltage 2/3 (during the 800kV electric pressure equivalent load get voltage 1/3), reached the uniform purpose of valve tower dividing potential drop in the equivalent actual engineering; Equivalent load part floor area is little, and required safe distance is little, and the equivalent load part accurately voltage in the experiment with measuring distributes and convenient the adjusting, is applicable to the engineering of different electric pressures, the highest multiplex valve test applicable to ± 800kV electric pressure.
Description of drawings
Fig. 1 DC converter valve multiplex valve impulse test schematic diagram;
Fig. 2 DC converter valve multiplex valve DC experiment schematic diagram;
Fig. 3 equivalent load structural drawing;
Fig. 4 equivalent load schematic diagram.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
Select for use the equivalent load part to replace a single valve to do the test of DC converter valve multiplex valve, experimental principle figure as shown in Figure 1 and Figure 2, the multiplex valve test mainly comprises multiplex valve surge voltage and DC voltage test, the high-pressure side of surge generator or dc generator is connected with double valve valve tower bottom, double valve cat head end is connected with equivalent load part top, both formation multiplex valves of connecting, equivalent load part bottom ground connection.Multiplex valve is applied surge voltage or DC voltage, investigate the insulating property of valve tower.The equivalent load part itself is designed to voltage divider arrangement, and its low-voltage arm is installed in base inside, and the voltage that can measure on the equivalent load part distributes.Voltage on the equivalent load should be total voltage 1/3 (during the 800kV electric pressure equivalent load get voltage 2/3), then the voltage of getting on the double valve tower be total voltage 2/3 (during the 800kV electric pressure equivalent load get voltage 1/3), reached the uniform purpose of valve tower dividing potential drop in the equivalent actual engineering.
Equivalent load part structural drawing as shown in Figure 3, schematic diagram as shown in Figure 4, equivalent load part provided by the invention comprises resistance branch load, resistance-capacitance-resistance parallel branch load, radome and base; The equivalent load part also is designed to voltage divider arrangement, the low-voltage arm of its voltage divider is installed in base inside, the base upper load is divided into A, B, C, D, E five parts, but E part short circuit wherein, can be according to the automatic regulating load size of trial voltage grade, A, B, C three parts are provided with three short circuit points again respectively, are used for finely tuning at the trial the equivalent load size; Described equivalent load part bottom ground connection; Double valve valve cat head end and equivalent load part top serial connection form multiplex valve.For the equilibrium that guarantees thermal value and the overall appearance and the stability of device, load of part resistance branch and the load of capacitance-resistance branch road are contained in the pillar, other three parallel resistance branch roads are contained in respectively in three pillars, and four pillar diameters are identical.
The situation (being divided into 1/3 of total voltage with the voltage on the equivalent load is example) of equivalent load part when further specifying multiplex valve and carry out DC break down voltage local discharge test, switching impulse test, thunder and lightning, steep wave impulse test below by embodiment.
Embodiment 1
As shown in Figure 2, form under DC voltage that static voltage sharing plays a major role in each element of converter valve (double valve), under DC voltage, get 1/3 of trial voltage for assurance equivalent load part, the value of equivalent load part resistive load need be designed to half of the middle static voltage sharing of connecting of converter valve (double valve).
As shown in Figure 1, form under operating impulse voltage that dynamic voltage balancing electric capacity plays a major role in each element of converter valve (double valve), under operating impulse voltage, get 1/3 of trial voltage for assurance equivalent load part, the value of capacitive load in the equivalent load part need be designed to a times of the middle dynamic voltage balancing electric capacity of connecting of converter valve (double valve).
Embodiment 3
At thunder and lightning, form under the steep wave surge voltage that dynamic voltage balancing resistance and saturable reactor play a major role in each element of converter valve (double valve), for guaranteeing that the equivalent load part is at thunder and lightning, get 1/3 of trial voltage under the steep wave surge voltage, need be designed to the resistance value in the equivalent load part half of the middle series connection of converter valve (double valve) dynamic voltage balancing resistance, inductance value is designed to half of inductance value of saturable reactor, but saturable reactor is a dynamic inductance, if coilloading also is the definite value inductance in the equivalent load part, in order to simplify the equivalent load structure, strengthen the resistance in the capacitance-resistance post, make equivalent load at thunder and lightning, play the effect of dividing potential drop under the steep wave effect.
Should be noted that at last: in conjunction with the foregoing description the present invention is had been described in detail, but above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit.Those of ordinary skill in the field are to be understood that: those skilled in the art read behind the embodiment of the invention and the instructions and can make amendment or be equal to replacement the specific embodiment of the present invention, but these modifications or change are all among the claim protection domain that application is awaited the reply.
Claims (3)
1. a DC converter valve multiplex valve test equivalent load device is characterized in that described device is an equivalent load part, and described equivalent load part comprises resistance branch load, resistance-capacitance-resistance parallel branch load, radome and base;
Described equivalent load part also is designed to voltage divider arrangement, and the low-voltage arm of its voltage divider is installed in base inside, and the base upper load is divided into A, B, C, D, E five parts, but E part short circuit wherein, and A, B, C three parts are provided with three short circuit points respectively;
Described equivalent load part bottom ground connection;
Described equivalent load part top and double valve valve cat head end serial connection form multiplex valve.
2. DC converter valve multiplex valve test equivalent load device as claimed in claim 1 is characterized in that: be connected in parallel between the described resistance branch load.
3. DC converter valve multiplex valve test equivalent load device as claimed in claim 1, it is characterized in that: described resistance branch load and resistance-capacitance-resistance parallel branch load is connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010508225.XA CN102004212B (en) | 2010-10-15 | 2010-10-15 | Equivalent load device of direct current converter valve multiple valve tests |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010508225.XA CN102004212B (en) | 2010-10-15 | 2010-10-15 | Equivalent load device of direct current converter valve multiple valve tests |
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| CN102004212A true CN102004212A (en) | 2011-04-06 |
| CN102004212B CN102004212B (en) | 2014-03-12 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353897A (en) * | 2011-06-22 | 2012-02-15 | 中国西电电气股份有限公司 | Extra-high voltage converter valve interrupting current test loop and test method thereof |
| CN102662146A (en) * | 2012-05-21 | 2012-09-12 | 中国西电电气股份有限公司 | High voltage direct current converter valve multiple valve insulation type test equivalent simulation load device |
| CN104237754A (en) * | 2014-09-26 | 2014-12-24 | 国家电网公司 | Method and device for bridge arm to form equipotential body in converter valve |
| CN110988632A (en) * | 2019-12-16 | 2020-04-10 | 西安西电电力***有限公司 | Converter valve component, converter valve and external insulation test method of converter valve |
| CN112491406A (en) * | 2020-11-26 | 2021-03-12 | 核工业西南物理研究院 | High-voltage solid-state modulator with voltage regulation capability |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87214780U (en) * | 1987-10-31 | 1988-04-27 | 董家右 | High voltage meter |
| CN2149631Y (en) * | 1993-04-14 | 1993-12-15 | 董梅 | Precision voltage divider |
| JP2003322675A (en) * | 2002-05-07 | 2003-11-14 | Meidensha Corp | Voltage divider for measuring arc voltage of switch interrupting test |
| CN2864689Y (en) * | 2006-01-06 | 2007-01-31 | 河北正弦波电气有限公司 | High-tension bushing R-C divider |
| CN101788583A (en) * | 2010-01-08 | 2010-07-28 | 中国电力科学研究院 | Electrode structure of high impedance and broadband high-voltage divider |
-
2010
- 2010-10-15 CN CN201010508225.XA patent/CN102004212B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87214780U (en) * | 1987-10-31 | 1988-04-27 | 董家右 | High voltage meter |
| CN2149631Y (en) * | 1993-04-14 | 1993-12-15 | 董梅 | Precision voltage divider |
| JP2003322675A (en) * | 2002-05-07 | 2003-11-14 | Meidensha Corp | Voltage divider for measuring arc voltage of switch interrupting test |
| CN2864689Y (en) * | 2006-01-06 | 2007-01-31 | 河北正弦波电气有限公司 | High-tension bushing R-C divider |
| CN101788583A (en) * | 2010-01-08 | 2010-07-28 | 中国电力科学研究院 | Electrode structure of high impedance and broadband high-voltage divider |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353897A (en) * | 2011-06-22 | 2012-02-15 | 中国西电电气股份有限公司 | Extra-high voltage converter valve interrupting current test loop and test method thereof |
| CN102353897B (en) * | 2011-06-22 | 2014-07-02 | 中国西电电气股份有限公司 | Extra-high voltage converter valve interrupting current test loop and test method thereof |
| CN102662146A (en) * | 2012-05-21 | 2012-09-12 | 中国西电电气股份有限公司 | High voltage direct current converter valve multiple valve insulation type test equivalent simulation load device |
| CN104237754A (en) * | 2014-09-26 | 2014-12-24 | 国家电网公司 | Method and device for bridge arm to form equipotential body in converter valve |
| CN104237754B (en) * | 2014-09-26 | 2017-03-15 | 国家电网公司 | A kind of converter valve bridge arm forms the method and device of equipotential body |
| CN110988632A (en) * | 2019-12-16 | 2020-04-10 | 西安西电电力***有限公司 | Converter valve component, converter valve and external insulation test method of converter valve |
| CN110988632B (en) * | 2019-12-16 | 2022-08-12 | 西安西电电力***有限公司 | Converter valve component, converter valve and external insulation test method of converter valve |
| CN112491406A (en) * | 2020-11-26 | 2021-03-12 | 核工业西南物理研究院 | High-voltage solid-state modulator with voltage regulation capability |
| CN112491406B (en) * | 2020-11-26 | 2023-07-25 | 核工业西南物理研究院 | High-voltage solid-state modulator with voltage regulation capability |
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| CN102004212B (en) | 2014-03-12 |
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