CN105305575A - Charging method of flexible direct current power transmission converter valve testing device - Google Patents
Charging method of flexible direct current power transmission converter valve testing device Download PDFInfo
- Publication number
- CN105305575A CN105305575A CN201510706084.5A CN201510706084A CN105305575A CN 105305575 A CN105305575 A CN 105305575A CN 201510706084 A CN201510706084 A CN 201510706084A CN 105305575 A CN105305575 A CN 105305575A
- Authority
- CN
- China
- Prior art keywords
- valve section
- power model
- charging
- brachium pontis
- examination
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The present invention discloses a charging method of a flexible direct current power transmission converter valve testing device. According to the charging method, a pulse voltage is emitted through inputting and removing of accompanying testing valve section power modules, and capacitor voltages of tested valve section power modules are charged to a working voltage; and after the charging of the accompanying testing valve section power modules are completed, the accompanying testing valve sections take N control periods of a control system as one group to charge the tested valve sections. Capacitor voltages of accompanying testing valve section power modules remain unchanged, and capacitor voltages of tested valve section power modules are increased from zero up to be equal to the capacitor voltages of the accompanying testing valve section power modules while the inductive currents of the tested valve section power modules are zero, and the charging process of the tested valve sections is end.
Description
Technical field
The present invention relates to the charging method of flexible direct current transmission converter valve testing apparatus.
Background technology
Flexible direct current transmission converter valve is the nucleus equipment of flexible DC power transmission, and power model is the minimum unit of converter valve, must ensure its reliability service by various testing experiment.Whether power module test device simulates various operating states during actual motion as much as possible, can reliability service with detection power module.Because power model adopts self-energizing power supply to be that Control card in module is powered, before self-energizing power supply reaches operating voltage, the Control card of module cannot work.Therefore charging method reasonable in design is needed.
At present, about the charging method of the testing apparatus of flexible direct current transmission converter valve power model, domestic had some relevant patents, as CN201310652351, CN201310407363, CN201210533984 etc., the main deficiency of power module test device charging method that these patents propose is: testing apparatus mainly utilizes DC power supply to be equipped with charging current limiter resistance in charging link to charge one by one successively to half-bridge structure power model, charging interval is longer, and the existence of charging resistor makes apparatus cost increase, control to become complicated.
Summary of the invention
The present invention is intended to the shortcoming overcoming above-mentioned existing testing apparatus charging method, proposes a kind of charging method of flexible direct current transmission converter valve power module test device.The present invention does not need extra recharge current-limiting resistance, can charge, without the need to charging one by one to the module of tested valve section simultaneously.
Be suitable for flexible direct current transmission converter valve testing apparatus of the present invention
Comprise primary circuit and secondary circuit two parts.Primary circuit provides electrical connection for testing, and secondary circuit is for controlling testing apparatus work, and display parameters, and protection primary circuit, control circuit breaker trip when plant failure.
Described primary circuit mainly comprises charging system, accompanies examination valve section, tested valve section and load inductance.
Described accompany examination valve section and tested valve section are composed in series by power model.Accompany examination valve section equal with the number of the power model that tested valve section comprises.Accompany examination valve section and tested valve section to be connected by load inductance and form closed-loop path.
Described charging system is made up of voltage regulator, step-up transformer and diode uncontrollable rectifier bridge, for startup stage for accompanying the charging of examination valve section.One end of charging system is connected with electrical network, and the other end of charging system tries valve section and is connected with accompanying.
Described power model is made up of an electric capacity, upper brachium pontis, lower brachium pontis, by-pass switch and thyristor.Described electric capacity is connected with upper brachium pontis, lower brachium pontis and is formed closed-loop path.The mid point of upper brachium pontis, the mid point of lower brachium pontis and the electric capacity negative pole end points of drawing is as the port of half-bridge structure power model output voltage.By-pass switch and thyristor are in parallel with lower brachium pontis respectively, for excision and the protection of half-bridge structure power model during short trouble.Upper brachium pontis and lower brachium pontis are by IGBT and anti-paralleled diode composition thereof.
In described charging system, each output of diode uncontrollable rectifier bridge is connected with the electric capacity two ends of a power model, and the capacitance voltage of power model equals the output voltage of diode uncontrollable rectifier bridge.
Described secondary circuit is primarily of valve control cabinet and inductive current observation circuit plate composition.Valve control cabinet is connected with power model by optical fiber, and the information of the control board transmission of received power module, simultaneously to power model sending controling instruction.Valve control cabinet is connected with terminal PC by network interface communication protocol, is shown by the job information of whole device on the human-computer interaction interface of terminal PC, simultaneously the work order of recipient's machine interactive interface.Valve control cabinet is connected with inductive current observation circuit plate by optical fiber.The inductor current value of the primary circuit that current sensor is monitored by optical fiber by inductive current observation circuit is sent to valve control cabinet.
Principle and the step of charging method of the present invention are as follows:
When power model internal capacitance voltage is lower, the self-energizing power supply of power model inside cannot be made normally to work.The Control card of power model inside is from the power taking of self-energizing power supply, and when self-energizing power supply cannot work, Control card also cannot work, and therefore the IGBT of power model upper and lower bridge arm cannot action.In this case can only be come to the charging of power model internal capacitance by the anti-paralleled diode of brachium pontis on power model, self-energizing power supply is worked, and this link is called not controlled charging.Normally work after required minimum voltage when power model internal capacitance to make its voltage reach self-energizing power supply by not controlled charging, described self-energizing power supply powers to the Control card in module, and Control card could normal work.
The present invention is to the method for accompanying examination valve section to adopt diode uncontrollable rectifier bridge not controlled charging.The electric capacity of examination valve section power model and the diode uncontrollable rectifier bridging of described charging system is accompanied to connect.The voltage of electric capacity equals the output voltage of diode uncontrollable rectifier bridge.By accompanying examination valve section power model all to drop into, after waiting to accompany examination valve section controlled charging not completing, controlling the output voltage of accompanying examination valve section, then beginning to flow through electric current in inductance.Inductive current by the anti-paralleled diode of brachium pontis on tested valve section power model to the capacitor charging of power model.In charging process, accompany the module capacitance voltage of examination valve section to remain unchanged, the module capacitance voltage of tested valve section is started from scratch growth.When the module capacitance voltage sum of tested valve section is equal with accompanying the module capacitance voltage sum trying valve section, inductive current is zero, and tested valve section charging process stops automatically.Because the capacitances in series of tested valve section power model connects and capacitance size is consistent, so now the capacitance voltage of tested valve section power model is equal; Further, owing to accompanying examination valve section equal with the number of the power model that tested valve section comprises, so, so now the capacitance voltage of tested valve section power model equals the capacitance voltage of accompanying examination valve section power model.
Charging method of the present invention is compared with existing charging method, the effect of impulse current when current-limiting resistance can suppress to charge is not introduced in the performance loop of link that charges, namely by controlling to accompany the module of examination valve section to drop into, so with limit charge time impulse current size.
Step of the present invention is as follows:
First to accompanying examination valve section to carry out not controlled charging.Charging system is tried valve section and is connected with accompanying, and checkout device is intact, and the instruction of adjustment voltage regulator is at zero graduation.Breaker closing, controls voltage regulator boosting, until power model reaches minimum.Capacitance voltage and the fault status information of module now can be read in terminal PC.Continue boosting, monitored by the human-computer interaction interface of terminal PC, power model reaches normal working voltage and voltage regulator can be stopped to boost simultaneously.Now can issue the clear faulting instruction that resets, observe the malfunction of power model.Fault-free represents that power model can normally work, and accompanies examination valve section charging process to complete.
Then to accompanying the power model of examination valve section to issue unlock command.It is one group with N number of control cycle.In first control cycle, accompany the whole conducting of upper brachium pontis IGBT of all power models of examination valve section, lower brachium pontis IGBT all turns off, and the output voltage of power model is capacitance voltage, and power model series connection exports.Within the first job cycle, the voltage of accompanying examination valve section to export is the capacitance voltage sum of whole power model.Ensuing second in N number of work period, accompany the upper brachium pontis IGBT of all power models of examination valve section all to turn off, the whole conducting of lower brachium pontis IGBT, the output voltage of power model is zero, and power model series connection exports.Second in N number of work period, the output voltage of accompanying examination valve section is zero.Circulate in this way, until the power model of tested valve section reaches normal working voltage.Issue by the human-computer interaction interface of terminal PC the clear faulting instruction that resets, observe the malfunction of power model.Fault-free represents that power model can normally work, and tested valve section charging process completes.N is integer, and the exploitation method of N is as follows:
Wherein, I is the electric current of load inductance, and L is load inductance value, and T is control cycle, U
1for accompany examination valve section power model capacitance voltage and, C
eqfor the equivalent capacity after tested valve root module capacitances in series.
In tested valve section charging process, inductive current flows to tested valve section from accompanying examination valve section, and flows through anti-paralleled diode and the electric capacity of the upper brachium pontis of tested valve section, is capacitor charging in this way.In first control cycle, accompany the power model capacitance voltage sum of output voltage higher than tested valve section of examination valve section, inductive current increases, tested valve section capacitor charging, and voltage raises.Second in N number of work period, the output voltage of accompanying examination valve section is zero, is less than tested valve section power model capacitance voltage sum.Now tested valve section does not unlock, and IGBT can not work.Inductive current, by the anti-paralleled diode of the upper brachium pontis of tested valve section and electric capacity afterflow, continues as capacitor charging, until inductive current is zero and remains unchanged.When the power module voltage sum of tested valve section is equal with accompanying the power module voltage sum trying valve section, tested valve section charging process terminates.The minimum value of N can adopt formula (5) to estimate, derivation is as follows:
Every N number of control cycle is one group.In first control cycle, accompany examination valve section output dc voltage, be equivalent to a direct voltage source, voltage is U
1, the anti-paralleled diode of brachium pontis and capacitances in series place in circuit on tested valve section power model, be connected in series between power model and power model, tested valve section is equivalent to a diode and an electric capacity.Tested valve section has M power model series connection, and the capacitance of each module is C
m, then the capacitance C of equivalent capacity
eq=C
m/ M.Whole device is equivalent to a direct voltage source, an inductance, diode, a capacitances in series; Direct voltage source positive pole is connected with inductance one end, and the inductance other end is connected with the anode of diode; Diode cathode is connected with electric capacity one end; The electric capacity other end is connected with direct voltage source negative pole.Second in N number of control cycle, and accompany examination valve section to excise from circuit, output voltage is zero, and on tested valve section power model, the anti-paralleled diode of brachium pontis and capacitances in series place in circuit, be connected in series between power model and power model.Due to the unilateal conduction characteristic of diode, the electric capacity that inductive current is reduced to tested valve section power model after zero to accompanying the electric discharge of examination valve section, so the voltage of the electric capacity of tested valve section power model remains unchanged, can not be equivalent to a direct voltage source.Tested valve section has M power model series connection, and the capacitance of each module is C
m, then the capacitance C of equivalent capacity
eq=C
m/ M, the voltage of equivalent capacity is U
2.Whole device is equivalent to an inductance, a diode, a direct voltage are source-series; Inductance one end is connected with the anode of diode; Diode cathode is connected with direct voltage source positive pole; Direct voltage source negative pole is connected with the inductance other end.
The size of tested valve section inductive current I tries valve section output voltage U with accompanying
1with tested valve section output voltage U
2difference be directly proportional, so start charge first group of N number of control cycle, tested valve section output voltage is zero, electric current increase amplitude maximum, first group of N number of control cycle is analyzed.Be similar to and think, inductive current linear change.According to
after first control cycle terminates, inductive current amplitude is:
According to
can obtain, after first control cycle terminates, capacitance voltage is:
N-1 control cycle afterwards, inductance afterflow.Electric current is reduced to after zero, can not oppositely increase due to the existence of diode, remains zero constant.The time t of inductance afterflow is calculated by (4) formula:
(2) formula, (3) formula substitute into (4) formula, and t=(N-1) T, (5) formula can be tried to achieve:
The value of N can be estimated according to (5) formula.(5) in formula, L is the value of load inductance, and unit is prosperous (H).C
eqfor the equivalent capacitance value that tested valve section power model is connected in series, unit is method (F).If tested valve section has M power model series connection, the capacitance of each module is C
m, then the capacitance C of equivalent capacity
eq=C
m/ M.T is control cycle, and unit is second (s).U
1be the output voltage of accompanying examination valve section in first control cycle, unit is volt (V).
The present invention has following characteristics and advantage:
1. in charging process, the impulse current of inductance is less, without the need to additionally increasing charging current limiter resistance.
2. the power model charging link of tested valve section without the need to using PWM control method in control cycle, also without the need to by accompanying the power model of examination valve section to drop into one by one, simplifies control procedure.
3. accompany the IGBT on off state of the power model of examination valve section consistent, and tested each power model of valve section charges simultaneously, power model need not charge one by one, improves charge efficiency.
4. the module capacitance voltage sum of tested valve section is with when accompanying the module capacitance voltage phase sum etc. trying valve section, and inductive current is zero, and charging process stops automatically, without the need to worrying the electric capacity overvoltage of the power model of tested valve section.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of primary circuit;
Fig. 2 is power module architectures figure;
Fig. 3 is the simulation result of inductive current;
Fig. 4 is the record ripple result of the terminal PC of inductive current;
Fig. 5 is the oscillographic record waveform of inductive current.
Embodiment
Further illustrate below in conjunction with the drawings and specific embodiments and utilize the inventive method.
Be suitable for testing apparatus of the present invention and comprise primary circuit and secondary circuit two parts.Primary circuit provides necessary electrical connection for power module test, is the carrier of testing experiment.Secondary circuit effect has two: one to be display circuit parameter, and two is control and protection primary circuits.
As shown in Figure 1, the primary circuit being suitable for testing apparatus of the present invention comprises charging system, accompanies examination valve section, tested valve section and load inductance.One end of charging system is connected with electrical network, and the other end of charging system tries valve section and is connected with accompanying.Described accompany examination valve section and tested valve section are composed in series by power model.Accompany examination valve section equal with the number of the power model that tested valve section comprises.Accompany examination valve section and tested valve section to be connected by load inductance and form closed-loop path.Described charging system is made up of voltage regulator, step-up transformer and diode uncontrollable rectifier bridge, for startup stage for accompanying the charging of examination valve section.
Figure 2 shows that the structure of power model.Accompany examination valve section and tested valve Duan Jun thus structure power model composition.Power model is made up of an electric capacity, upper brachium pontis, lower brachium pontis, by-pass switch and thyristor.Described electric capacity is connected with upper brachium pontis, lower brachium pontis and is formed closed-loop path.Upper brachium pontis and lower brachium pontis form by IGBT and anti-paralleled diode.The mid point of upper brachium pontis and lower brachium pontis and the electric capacity negative pole end points of drawing is as the port of half-bridge structure power model output voltage.By-pass switch and thyristor are in parallel with lower brachium pontis respectively, for excision and the protection of half-bridge structure power model during short trouble.
Fig. 3 is the equivalent circuit diagram of device in first control cycle.
Fig. 4 is the equivalent circuit diagram of device in second to N number of control cycle.
Described secondary circuit is primarily of valve control cabinet and inductive current observation circuit composition.Valve control cabinet is connected with power model by optical fiber, and the information of the control board transmission of received power module, simultaneously to power model sending controling instruction.Valve control cabinet is connected with terminal PC by network interface communication protocol, is shown by the job information of whole device on the human-computer interaction interface of terminal PC, simultaneously the work order of recipient's machine interactive interface.Valve control cabinet is connected with inductive current observation circuit by optical fiber.The inductor current value of the primary circuit that current sensor is monitored by optical fiber by inductive current observation circuit is sent to valve control cabinet.
The concrete charge step applying charging method of the present invention is as follows:
Step one, charging system is tried valve section and is connected with accompanying, and checkout device is intact, and the instruction of adjustment voltage regulator is at zero graduation.Breaker closing, controls voltage regulator boosting, until power model reaches minimum.Capacitance voltage and the fault status information of module now can be read in terminal PC.Continue boosting, monitored by the human-computer interaction interface of terminal PC, power model reaches normal working voltage and voltage regulator can be stopped to boost simultaneously.Now can issue the clear faulting instruction that resets, observe the malfunction of power model.Fault-free represents that power model can normally work, and accompanies examination valve section charging process to complete.
Step 2, issues unlock command to accompanying the power model of examination valve section.It is one group with N number of control cycle.Within the first job cycle, accompany the whole conducting of upper brachium pontis IGBT of all power models of examination valve section, lower brachium pontis IGBT all turns off, and the output voltage of power model is capacitance voltage, and the series connection of multiple power model exports.In first control cycle, the voltage of accompanying examination valve section to export is the capacitance voltage sum of whole power model.Ensuing second in N number of work period, accompany the upper brachium pontis IGBT of all power models of examination valve section all to turn off, the whole conducting of lower brachium pontis IGBT, the output voltage of power model is zero, and power model series connection exports.Second in N number of work period, the output voltage of accompanying examination valve section is zero.Circulate in this way, until the power model of tested valve section reaches normal working voltage.Issue by the human-computer interaction interface of terminal PC the clear faulting instruction that resets, observe the malfunction of power model.Fault-free represents that power model can normally work, and charging process completes.N is integer,
Use PSCAD simulation software, simulating, verifying is carried out to the charging method of flexible direct current transmission converter valve testing apparatus of the present invention.Emulation and test design parameter as follows:
When giving the charging of tested valve section power model, the charging method described in application.Control cycle T is 100s, and every 20 control cycles are one group.
Fig. 3 is the simulation result of inductive current.Inductive current is discontinuous, and peak current is about 250A.
Fig. 4 is the record ripple result of the terminal PC of inductive current.Each control cycle 100s records primary current value, and peak current is about 170A.
Fig. 5 is the oscillographic record waveform of inductive current.The peak value of inductive current is about 178.7A.
Simulation result and experimental result show, adopt charging method of the present invention, and testing apparatus, after cancellation charging current limiter resistance, still can limit impulse current effectively.
Claims (5)
1. a charging method for flexible direct current transmission converter valve testing apparatus, described flexible direct current transmission converter valve testing apparatus comprises primary circuit and secondary circuit; Described primary circuit mainly comprises charging system, accompanies examination valve section, tested valve section and load inductance;
Described examination valve section of accompanying is composed in series by the power model that number is equal with tested valve section; Accompany examination valve section and tested valve section to be connected by load inductance and form closed-loop path;
Described charging system is made up of voltage regulator, step-up transformer and diode uncontrollable rectifier bridge, and one end of charging system is connected with electrical network, and the other end of charging system tries valve section and is connected with accompanying;
Described power model is made up of an electric capacity, upper brachium pontis, lower brachium pontis, by-pass switch and thyristor; Described electric capacity is connected with upper brachium pontis, lower brachium pontis and is formed closed-loop path; The mid point of upper brachium pontis, the mid point of lower brachium pontis and the electric capacity negative pole end points of drawing is as the port of half-bridge structure power model output voltage; By-pass switch and thyristor are in parallel with lower brachium pontis respectively, for excision and the protection of half-bridge structure power model during short trouble; Upper brachium pontis and lower brachium pontis are by IGBT and anti-paralleled diode composition thereof;
In described charging system, each output of diode uncontrollable rectifier bridge is connected with the electric capacity two ends of a power model, and the capacitance voltage of power model equals the output voltage of diode uncontrollable rectifier bridge;
Described secondary circuit is primarily of valve control cabinet and inductive current observation circuit composition; Valve control cabinet is connected with power model and inductive current observation circuit plate connects,
It is characterized in that: the charging method of described flexible direct current transmission converter valve testing apparatus is to the method for accompanying examination valve section to adopt diode uncontrollable rectifier bridge not controlled charging; After accompanying examination valve section described in treating controlled charging not completing by diode uncontrollable rectifier bridge, control the output voltage of accompanying examination valve section, electric current is flow through in inductance, inductive current gives the capacitor charging of this power model by the anti-paralleled diode of brachium pontis on tested valve section power model, until the capacitance voltage of tested valve section power model reaches normal range of operation, charging process terminates.
2. the charging method of flexible direct current transmission converter valve testing apparatus as claimed in claim 1, it is characterized in that: described charging method sends pulse voltage by the input and excision of accompanying examination valve section power model, and the capacitance voltage of tested valve section power model is charged to operating voltage; After waiting to accompany examination valve section controlled charging not completing, accompany examination valve section to be one group with N number of control cycle of control system, tested valve section is charged.
3. the charging method of flexible direct current transmission converter valve testing apparatus as claimed in claim 2, is characterized in that: described charging method concrete steps are as follows:
Step one, tries valve section by charging system and is connected with accompanying, by the diode uncontrollable rectifier bridge of charging system to accompanying examination valve section not controlled charging;
Step 2, after accompanying the charging complete of examination valve section, issues unlock command to accompanying the power model of examination valve section; It is one group with N number of control cycle subsequently, to tested valve section charging; In first control cycle, accompany the whole conducting of upper brachium pontis IGBT of all power models of examination valve section, lower brachium pontis IGBT all turns off, and the output voltage of power model is capacitance voltage, and the series connection of multiple power model exports; Within the first job cycle, the voltage of accompanying examination valve section to export is the capacitance voltage sum of whole power model; Ensuing second in N number of work period, accompany the upper brachium pontis IGBT of all power models of examination valve section all to turn off, the whole conducting of lower brachium pontis IGBT, the output voltage of power model is zero, and the series connection of multiple power model exports; Second in N number of work period, the output voltage of accompanying examination valve section is zero.
4. the charging method of flexible direct current transmission converter valve testing apparatus as claimed in claim 2, it is characterized in that: described control cycle N is integer, the exploitation method of N is as follows:
Wherein, I is the electric current of load inductance, and L is load inductance value, and T is control cycle, U
1for accompany examination valve section power model capacitance voltage and, C
eqfor the equivalent capacity after tested valve root module capacitances in series.
5. the charging method of as claimed in claim 2 or claim 3 flexible direct current transmission converter valve testing apparatus, is characterized in that: in charging process, accompanies the module capacitance voltage of examination valve section to remain unchanged, and the module capacitance voltage of tested valve section is started from scratch growth; When the module capacitance voltage sum of tested valve section is equal with accompanying the module capacitance voltage sum trying valve section, inductive current is zero, and tested valve section charging process stops automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510706084.5A CN105305575A (en) | 2015-10-27 | 2015-10-27 | Charging method of flexible direct current power transmission converter valve testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510706084.5A CN105305575A (en) | 2015-10-27 | 2015-10-27 | Charging method of flexible direct current power transmission converter valve testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105305575A true CN105305575A (en) | 2016-02-03 |
Family
ID=55202489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510706084.5A Pending CN105305575A (en) | 2015-10-27 | 2015-10-27 | Charging method of flexible direct current power transmission converter valve testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105305575A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106997012A (en) * | 2017-04-28 | 2017-08-01 | 荣信汇科电气技术有限责任公司 | The converter valve Tests at Steady State device and method of bias voltage is undertaken using electric capacity |
| CN108448549A (en) * | 2018-05-09 | 2018-08-24 | 华中科技大学 | The flexible direct current line protection method of power is measured based on current-limiting reactor |
| CN109031106A (en) * | 2018-07-10 | 2018-12-18 | 北京平高清大科技发展有限公司 | A kind of hybrid dc circuit breaker breaking test device |
| CN109100590A (en) * | 2018-07-23 | 2018-12-28 | 南京南瑞继保电气有限公司 | A kind of experiment power supply and tandem type static synchronous compensator converter valve test macro |
| CN113406408A (en) * | 2021-05-14 | 2021-09-17 | 南方电网科学研究院有限责任公司 | Flexible direct current converter valve power module bypass switch error-closing test method and circuit |
| CN114089077A (en) * | 2021-11-29 | 2022-02-25 | 南方电网科学研究院有限责任公司 | Method and device for testing effectiveness of uncontrolled charging overtime tripping function of valve control system |
| CN115372813A (en) * | 2022-08-15 | 2022-11-22 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Method for determining operable area of converter valve mixing test platform and testing method |
| CN114089077B (en) * | 2021-11-29 | 2024-07-12 | 南方电网科学研究院有限责任公司 | Method and device for testing validity of charging overtime trip function of valve control system without control |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101158414B1 (en) * | 2010-01-11 | 2012-07-11 | 주식회사 태화에레마 | Digital Battery Charger |
| CN103033701A (en) * | 2012-11-30 | 2013-04-10 | 许继集团有限公司 | Flexible direct current transmission converter valve steady-state high-power running testing device and testing method |
| CN103197241A (en) * | 2013-03-20 | 2013-07-10 | 许继集团有限公司 | Testing device and testing method of flexible direct-current transmission modular multilevel converter (MMC) converter valve operating |
| CN104991131A (en) * | 2015-06-12 | 2015-10-21 | 中国科学院电工研究所 | Flexible direct-current power-transmission converter-valve half-bridge structure power module test device |
-
2015
- 2015-10-27 CN CN201510706084.5A patent/CN105305575A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101158414B1 (en) * | 2010-01-11 | 2012-07-11 | 주식회사 태화에레마 | Digital Battery Charger |
| CN103033701A (en) * | 2012-11-30 | 2013-04-10 | 许继集团有限公司 | Flexible direct current transmission converter valve steady-state high-power running testing device and testing method |
| CN103197241A (en) * | 2013-03-20 | 2013-07-10 | 许继集团有限公司 | Testing device and testing method of flexible direct-current transmission modular multilevel converter (MMC) converter valve operating |
| CN104991131A (en) * | 2015-06-12 | 2015-10-21 | 中国科学院电工研究所 | Flexible direct-current power-transmission converter-valve half-bridge structure power module test device |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106997012A (en) * | 2017-04-28 | 2017-08-01 | 荣信汇科电气技术有限责任公司 | The converter valve Tests at Steady State device and method of bias voltage is undertaken using electric capacity |
| CN106997012B (en) * | 2017-04-28 | 2023-07-14 | 荣信汇科电气股份有限公司 | Converter valve steady-state operation test device and method adopting capacitor to bear bias voltage |
| CN108448549A (en) * | 2018-05-09 | 2018-08-24 | 华中科技大学 | The flexible direct current line protection method of power is measured based on current-limiting reactor |
| CN109031106A (en) * | 2018-07-10 | 2018-12-18 | 北京平高清大科技发展有限公司 | A kind of hybrid dc circuit breaker breaking test device |
| CN109100590A (en) * | 2018-07-23 | 2018-12-28 | 南京南瑞继保电气有限公司 | A kind of experiment power supply and tandem type static synchronous compensator converter valve test macro |
| CN109100590B (en) * | 2018-07-23 | 2021-04-20 | 南京南瑞继保电气有限公司 | Test power supply and cascading static synchronous compensator converter valve test system |
| CN113406408A (en) * | 2021-05-14 | 2021-09-17 | 南方电网科学研究院有限责任公司 | Flexible direct current converter valve power module bypass switch error-closing test method and circuit |
| CN113406408B (en) * | 2021-05-14 | 2022-04-12 | 南方电网科学研究院有限责任公司 | Flexible direct current converter valve power module bypass switch error-closing test method and circuit |
| CN114089077A (en) * | 2021-11-29 | 2022-02-25 | 南方电网科学研究院有限责任公司 | Method and device for testing effectiveness of uncontrolled charging overtime tripping function of valve control system |
| CN114089077B (en) * | 2021-11-29 | 2024-07-12 | 南方电网科学研究院有限责任公司 | Method and device for testing validity of charging overtime trip function of valve control system without control |
| CN115372813A (en) * | 2022-08-15 | 2022-11-22 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Method for determining operable area of converter valve mixing test platform and testing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105305575A (en) | Charging method of flexible direct current power transmission converter valve testing device | |
| CN103033701A (en) | Flexible direct current transmission converter valve steady-state high-power running testing device and testing method | |
| CN106253718A (en) | AC-DC rectifier systems | |
| CN106257296B (en) | Circuit is tested in the synthesis of testing valve performance for HVDC | |
| CN105576814B (en) | DC power supply standby system | |
| CN109374996A (en) | A kind of the dipulse test circuit and method of three level DCDC (PCC) power of striding capacitance | |
| CN104991131A (en) | Flexible direct-current power-transmission converter-valve half-bridge structure power module test device | |
| CN105322810B (en) | Power conversion device and protection method thereof when current feedback signal is abnormal | |
| CN104348375A (en) | Power supply device and method of operating device | |
| CN103645399A (en) | Converter valve submodule automatic test system and thyristor test circuit thereof | |
| CN103475242A (en) | Plasma high frequency high voltage power supply | |
| CN103954893A (en) | Thyristor shunt detection circuit and method used for voltage source converter | |
| CN105939126A (en) | Switch inductor type hybrid quasi-Z-source inverter | |
| CN103722277A (en) | Direct current arc welding machine | |
| CN103647448A (en) | Integrated step-down-flyback type high power factor constant current circuit and device | |
| CN104269996B (en) | Extra-high voltage converter valve operating test auxiliary energy taking device and method | |
| CN205847124U (en) | A kind of switched inductors type mixes quasi-Z-source inverter | |
| CN116995714B (en) | Energy storage converter and control method thereof | |
| CN105958855A (en) | New-type high-gain quasi-Z-source inverter | |
| CN203164242U (en) | Current waveform generation device | |
| CN206117540U (en) | Switch accurate Z source dc -to -ac converter of type high -gain that steps up | |
| CN111239595A (en) | Automatic test device and method for simulating transient pulse electrical stress action | |
| Kusumah et al. | A direct three-phase to single-phase ac/ac converter for contactless electric vehicle charger | |
| CN105301406A (en) | Flexible direct-current power transmission valve segment short-circuit experiment testing system and testing method thereof | |
| KR20190030893A (en) | Motor Load Simulator and Control Method with Power Regeneration Function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160203 |
|
| WD01 | Invention patent application deemed withdrawn after publication |