CN106997012A - The converter valve Tests at Steady State device and method of bias voltage is undertaken using electric capacity - Google Patents
The converter valve Tests at Steady State device and method of bias voltage is undertaken using electric capacity Download PDFInfo
- Publication number
- CN106997012A CN106997012A CN201710293866.XA CN201710293866A CN106997012A CN 106997012 A CN106997012 A CN 106997012A CN 201710293866 A CN201710293866 A CN 201710293866A CN 106997012 A CN106997012 A CN 106997012A
- Authority
- CN
- China
- Prior art keywords
- test product
- product valve
- voltage
- valve
- test
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The present invention provides the converter valve Tests at Steady State device and method that a kind of use electric capacity undertakes bias voltage, and described device includes test product valve 1, test product valve 2, electric capacity CL, transformer T1, loop current suppression reactance L01, switch K01 and AC-testing supply S0.Described test product valve 1 is connected and is grounded with the one end of test product valve 2, other end is connected on loop current suppression reactance L01 both sides respectively, after transformer T1 vice-side winding is connected with electric capacity CL, one end is grounded, other end connects loop current suppression reactance L01 any one end, and transformer T1 primary side winding after switch K01 concatenations with AC-testing supply S0 with being connected.The DC voltage component between converter valve end is undertaken using series connection electric capacity in the loop, pilot system is charged by common transformer, complementary energy, it is not necessary to configuring direct current power supply, it is not necessary to extra complementary energy valve.Transformer can simply realize that major loop is simple and reliable with a low power single-phase transformer realization, or a pressure regulator.
Description
Technical field
The present invention relates to flexible DC power transmission and applied power electronics technical field, biasing is more particularly to undertaken using electric capacity
The converter valve Tests at Steady State device and method of voltage.
Background technology
Flexible direct current power transmission system based on MMC voltage source converters, which has to passive system or weak AC system, to be supplied
Electric, active and idle quick independent control, it is readily configured multiterminal network and the excellent properties such as environment-friendly, and MMC-HVDC systems
The conveying voltage harmonic content of system is extremely low, without being reconfigured at extra wave filter so that the flexible DC power transmission based on MMC is defeated
Electrical domain has a wide range of applications.And MMC-HVDC core component power unit module is whole flexible DC power transmission changes
The minimum unit of valve is flowed, power unit module composition valve section is made up of 6 bridge arms of converter valve valve section.
The reliability of converter valve directly determines the reliability of flexible direct current power transmission system.It is defeated in flexible direct current in order to ensure
In the various operating modes of electric system, converter valve can reliability service, IEC standard define to converter valve section carry out pattern examination
Test, wherein containing Tests at Steady State.This is indispensable important step in flexible DC power transmission engineering design link, is
The important guarantee that whole soft lineal system later stage safety and stability is persistently run.
According to the requirement of actual operating mode and the regulation of IEC standard, in process of the test, the voltage one at converter valve two ends
As include DC voltage component and alternating current voltage component, under typical design, DC voltage component is equivalent to the specified electricity of valve section
The half of pressure, and the amplitude of alternating current voltage component is approximately equal to the half of valve section rated voltage.In order to be powered to valve section, produce simultaneously
Required DC voltage component, presently disclosed all methods depend on high-voltage DC power supply or extra converter valve, hence it is evident that
Add experimentation cost.
A kind of Publication No. CN105372586A Chinese patent " flexible DC power transmission voltage source converter valve operating test
Method in device " needs extra HVDC rectifier power source and an extra complementary energy bridge arm, hence it is evident that increase experiment dress
The cost put, and because system is asymmetric, control is complicated.
Publication No. CN106546852A Chinese patent " a kind of MMC converter valves Tests at Steady State circuit and its control
Method ", then need the soft straight bridge arm of extra two to carry out complementary energy, be powered while being also required to HVDC rectifier power source, bright
It is aobvious to increase experimentation cost.
The content of the invention
In order to overcome the deficiencies in the prior art, the present invention provides the converter valve stable state that a kind of use electric capacity undertakes bias voltage
Operating test device and method, make full use of the electric capacity of series connection in the loop to undertake the DC voltage component between converter valve end,
Pilot system is charged by common transformer, complementary energy, it is not necessary to configuring direct current power supply, it is not necessary to extra complementary energy valve.
Required transformer, simply can be realized, major loop with a low power single-phase transformer realization, or a pressure regulator
It is simple and reliable.
In order to achieve the above object, the present invention is realized using following technical scheme：
The converter valve Tests at Steady State device of bias voltage, including test product valve 1, test product valve 2, electric capacity are undertaken using electric capacity
CL, transformer T1, loop current suppression reactance L01, switch K01 and AC-testing supply S0.
Described test product valve 1 is connected and is grounded with the one end of test product valve 2, and other end is connected on loop current suppression reactance L01 respectively
Both sides, after transformer T1 vice-side winding is connected with electric capacity CL, one end ground connection, other end connects loop current suppression reactance L01's
Any one end, transformer T1 primary side winding after switch K01 concatenations with AC-testing supply S0 with being connected.
Described transformer T1 can use pressure regulator, by the slow pressure regulation of pressure regulator to experiment electricity in process of the test
Charged on road.
Charging resistor R, and the also parallel connection on charging resistor R can also be in series with the middle of transformer T1 and switch K01
There is by-pass switch K02, hookup is charged by charging resistor and by-pass switch in process of the test.
Two test product valve balanced arrangements can also be made using two loop current suppression reactance L01 and L02, connected mode is：Examination
Product valve 1 is connected and is grounded with the one end of test product valve 2, and other end is connected with loop current suppression reactance L01, L02, transformer T1 secondary
After winding is connected with electric capacity CL, one end ground connection, other end is connected on loop current suppression reactance L01, L02 midpoint.
The test method of the converter valve Tests at Steady State device of bias voltage is undertaken using electric capacity, including：
(1), it is necessary to be charged to them when the cell capacitance voltage in test product valve is not set up also, there are two kinds
Charging method is optional：Charged and charged using charging resistor R and charging resistor by-pass switch K02 using pressure regulator T1
Two kinds of charging methods；
(2) AC-testing supply is used, the method that alternately charging is carried out to electric capacity and test product valve in charging process；
(3) method that the DC voltage component between test product valve end is undertaken using electric capacity CL：Because external connection exchange becomes
Depressor, its both end voltage is industrial-frequency alternating current, therefore, is connected on the electric capacity of transformer secondary by the direct current between undertaking test product valve end
Component of voltage, and AC transformer produces the alternating current voltage component between test product valve end；
(4), it is necessary to when adjusting DC voltage component between the end of test product valve, slowly adjust test product valve in process of the test
Modulated signal, it is ensured that DC voltage component between its end is slowly varying, and the voltage on such series capacitance CL can follow examination
Voltage DC component between the end of product valve, it is to avoid shoved in Transformer Winding because voltage difference is produced, therefore in test product valve direct current
In component of voltage change procedure, the voltage on electric capacity CL also changes simultaneously, keeps test product valve and the total voltage on electric capacity CL and electricity
The source balance of voltage, so as to also achieve complementary energy of the AC power to test product valve；
(5) in process of the test, the modulated signal of control test product valve 1 and test product valve 2 so that the electric current in test product valve is met will
Ask；Control the modulated signal of complementary energy valve so that the capacitor voltage balance in complementary energy valve, test product valve 1, test product valve 2, and meet experiment
It is required that.
Described is using the pressure regulator T1 methods charged：
Step 1: when starting, pressure regulator T1 being transferred to and is output as no-voltage, K01 is closed；
Step 2: then slow rise pressure regulator T1 output voltages, due to test product valve, series capacitance CL, transformer secondary
Winding is to be connected in series, if test product valve is made up of half-bridge cells, and test product valve is charged in the positive half-wave of AC power, and is exchanged
The negative half-wave of power supply charges to series capacitance CL；If test product valve is made up of full bridge unit, the positive and negative half-wave of AC power, electric current
All unit is charged；If test product valve is made up of half-bridge cells and full bridge unit mixing, in the positive half-wave of AC power, electricity
Stream charges to all units, and the negative half-wave of AC power, and electric current charges to full bridge unit therein and series capacitance；
Step 3: waiting pressure regulator to rise to assigned voltage, charging terminates, the bridge arm capacitance voltage on test product valve at this moment
With the crest voltage equal to AC power plus the voltage on series capacitance CL, experiment can be started.
Described is using charging resistor R and charging resistor by-pass switch the K02 method charged：
Step 1: closing K01 first, start to test product valve and series capacitance CL chargings；
Step 2: because test product valve, series capacitance CL, transformer secondary winding are to be connected in series, if test product valve is by half
Bridge unit is constituted, and test product valve is charged in the positive half-wave of AC power, and the negative half-wave of AC power charges to series capacitance CL；
If test product valve is made up of full bridge unit, the positive and negative half-wave of AC power, electric current all charges to unit；If test product valve by
Half-bridge cells and full bridge unit mixing composition, in the positive half-wave of AC power, electric current charges to all units, and AC power
Negative half-wave, electric current charges to full bridge unit therein and series capacitance；
Step 3: waiting after end unit voltage stabilization to be charged, closure charging resistor by-pass switch K01；At this moment test product
Bridge arm capacitance voltage on valve and equal to AC power crest voltage plus the voltage on series capacitance CL, examination can be started
Test.
Described test method also includes following methods：In process of the test, test product valve 1, test product valve 2 and loop current suppression electricity
Required test current has been flowed through in anti-L01；The generation of test current is different with the debugging signal of test product valve 2 by test product valve 1
Produce；Under typical test situation, the modulating wave of test product valve 1 and test product valve 2 is all given as sinusoidal signal, both amplitudes, frequency
It is equal, differ a small angle；Therefore, on test product valve 1 and the loop current suppression reactor of the centre of test product valve 2, both will be born
The difference of voltage, thus produce the sinusoidal circulation of an identical frequency；And capacitance voltage difference small between two test product valves will
Cause the DC component on loop current suppression reactor；Sinusoidal circulation and DC component have synthesized required test current.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, use electric capacity of the invention undertakes the converter valve Tests at Steady State device and method of bias voltage, makes full use of
Series connection electric capacity in the loop undertakes the DC voltage component between converter valve end, by common transformer pilot system is carried out
Charging, complementary energy, it is not necessary to configuring direct current power supply, it is not necessary to extra complementary energy valve.Required transformer, can be simply small with one
The single-phase transformer of power realized, or a pressure regulator is realized, major loop is simple and reliable.
2nd, use electric capacity of the invention undertakes the converter valve Tests at Steady State device and method of bias voltage, can use
Charged using charging resistor R and charging resistor by-pass switch K02 and carry out two kinds of charging methods of charging using pressure regulator T1,
Stable regulation can be carried out to charging current in charging process using pressure regulator charging.
3rd, a kind of converter valve Tests at Steady State device and method of use AC-testing supply of the invention, was being tested
, it is necessary to when adjusting DC voltage component between the end of test product valve in journey, the modulated signal of slow adjustment test product valve, it is ensured that between its end
DC voltage component is slowly varying, and the voltage on such series capacitance CL can follow voltage DC point between the end of test product valve
Amount, it is to avoid shoved in Transformer Winding because voltage difference is produced, therefore in test product valve DC voltage component change procedure, electricity
Hold the voltage on CL also simultaneously to change, keep test product valve to be balanced with the total voltage on electric capacity CL with supply voltage, so as to also realize
Complementary energy of the AC power to test product valve.
Brief description of the drawings
Fig. 1 is the converter valve Tests at Steady State device topology diagram of the present invention；
Fig. 2 is that the use pressure regulator of the present invention controls the operating test device topology diagram of charging process；
Fig. 3 is that the use charging resistor of the present invention controls the operating test device topology diagram of charging process；
Fig. 4 is the full symmetric operating test device topology diagram of two test product valves of the invention；
Fig. 5 is the half-bridge power unit modular circuit schematic diagram of the present invention；
Fig. 6 is the full bridge power unit module circuit theory diagrams of the present invention.
Embodiment
The embodiment provided below in conjunction with accompanying drawing the present invention is described in detail.
As shown in figure 1, the converter valve Tests at Steady State device of bias voltage is undertaken using electric capacity, including test product valve 1, examination
Product valve 2, electric capacity CL, transformer T1, loop current suppression reactance L01, switch K01 and AC-testing supply S0.
Described test product valve 1 is connected and is grounded with the one end of test product valve 2, and other end is connected on loop current suppression reactance L01 respectively
Both sides, after transformer T1 vice-side winding is connected with electric capacity CL, one end ground connection, other end connects loop current suppression reactance L01's
Any one end, transformer T1 primary side winding after switch K01 concatenations with AC-testing supply S0 with being connected.
As shown in Fig. 2 described transformer T1 can use pressure regulator, pass through the slow tune of pressure regulator in process of the test
Pressure charges to hookup.
As shown in figure 3, charging resistor R can also be in series with the middle of transformer T1 and switch K01, and in charging resistor
By-pass switch K02 is also parallel with R, hookup is charged by charging resistor and by-pass switch in process of the test.
As shown in figure 4, two test product valve balanced arrangements can also be made using two loop current suppression reactance L01 and L02, connect
Mode is：Test product valve 1 is connected and is grounded with the one end of test product valve 2, and other end is connected with loop current suppression reactance L01, L02, transformation
After device T1 vice-side winding is connected with electric capacity CL, one end ground connection, other end is connected to loop current suppression reactance L01, L02 midpoint
On.
The test product valve section of the experimental rig is formed by the cascade of one or more power unit modules, wherein each power list
First submodule can be half-bridge cells submodule, as shown in Figure 5 or full bridge unit submodule, as shown in Figure 6.Half-bridge
Unit submodule includes the composition such as two IGBT and diode, capacitor, discharge resistance, power unit module master control borad；Entirely
Bridge unit submodule includes the composition such as four IGBT and diode, capacitor, discharge resistance, power unit module master control borad.
By controlling the turn-on and turn-off of IGBT inside triggering submodule to control the input of power cell submodule and cut out, Neng Gourang
Voltage needed for the output of valve end.
The test method of the converter valve Tests at Steady State device of bias voltage is undertaken using electric capacity, including：
(1), it is necessary to be charged to them when the cell capacitance voltage in test product valve is not set up also, there are two kinds
Charging method is optional：Charged and charged using charging resistor R and charging resistor by-pass switch K02 using pressure regulator T1
Two kinds of charging methods；
(2) AC-testing supply is used, the method that alternately charging is carried out to electric capacity and test product valve in charging process；
(3) method that the DC voltage component between test product valve end is undertaken using electric capacity CL：Because external connection exchange becomes
Depressor, its both end voltage is industrial-frequency alternating current, therefore, is connected on the electric capacity of transformer secondary by the direct current between undertaking test product valve end
Component of voltage, and AC transformer produces the alternating current voltage component between test product valve end；
(4), it is necessary to when adjusting DC voltage component between the end of test product valve, slowly adjust test product valve in process of the test
Modulated signal, it is ensured that DC voltage component between its end is slowly varying, and the voltage on such series capacitance CL can follow examination
Voltage DC component between the end of product valve, it is to avoid shoved in Transformer Winding because voltage difference is produced, therefore in test product valve direct current
In component of voltage change procedure, the voltage on electric capacity CL also changes simultaneously, keeps test product valve and the total voltage on electric capacity CL and electricity
The source balance of voltage, so as to also achieve complementary energy of the AC power to test product valve；
(5) in process of the test, the modulated signal of control test product valve 1 and test product valve 2 so that the electric current in test product valve is met will
Ask；Control the modulated signal of complementary energy valve so that the capacitor voltage balance in complementary energy valve, test product valve 1, test product valve 2, and meet experiment
It is required that.
Described is using the pressure regulator T1 methods charged：
Step 1: when starting, pressure regulator T1 being transferred to and is output as no-voltage, K01 is closed；
Step 2: then slow rise pressure regulator T1 output voltages, due to test product valve, series capacitance CL, transformer secondary
Winding is to be connected in series, if test product valve is made up of half-bridge cells, and test product valve is charged in the positive half-wave of AC power, and is exchanged
The negative half-wave of power supply charges to series capacitance CL；If test product valve is made up of full bridge unit, the positive and negative half-wave of AC power, electric current
All unit is charged；If test product valve is made up of half-bridge cells and full bridge unit mixing, in the positive half-wave of AC power, electricity
Stream charges to all units, and the negative half-wave of AC power, and electric current charges to full bridge unit therein and series capacitance；
Step 3: waiting pressure regulator to rise to assigned voltage, charging terminates, the bridge arm capacitance voltage on test product valve at this moment
With the crest voltage equal to AC power plus the voltage on series capacitance CL, experiment can be started.
Described is using charging resistor R and charging resistor by-pass switch the K02 method charged：
Step 1: closing K01 first, start to test product valve and series capacitance CL chargings；
Step 2: because test product valve, series capacitance CL, transformer secondary winding are to be connected in series, if test product valve is by half
Bridge unit is constituted, and test product valve is charged in the positive half-wave of AC power, and the negative half-wave of AC power charges to series capacitance CL；
If test product valve is made up of full bridge unit, the positive and negative half-wave of AC power, electric current all charges to unit；If test product valve by
Half-bridge cells and full bridge unit mixing composition, in the positive half-wave of AC power, electric current charges to all units, and AC power
Negative half-wave, electric current charges to full bridge unit therein and series capacitance；
Step 3: waiting after end unit voltage stabilization to be charged, closure charging resistor by-pass switch K01；At this moment test product
Bridge arm capacitance voltage on valve and equal to AC power crest voltage plus the voltage on series capacitance CL, examination can be started
Test.
Described test method also includes following methods：In process of the test, test product valve 1, test product valve 2 and loop current suppression electricity
Required test current has been flowed through in anti-L01；The generation of test current is different with the debugging signal of test product valve 2 by test product valve 1
Produce；Under typical test situation, the modulating wave of test product valve 1 and test product valve 2 is all given as sinusoidal signal, both amplitudes, frequency
It is equal, differ a small angle；Therefore, on test product valve 1 and the loop current suppression reactor of the centre of test product valve 2, both will be born
The difference of voltage, thus produce the sinusoidal circulation of an identical frequency；And capacitance voltage difference small between two test product valves will
Cause the DC component on loop current suppression reactor；Sinusoidal circulation and DC component have synthesized required test current.
In the experimental rig, the operation electricity needed for experiment is flowed through in test product valve 1, test product valve 2, loop current suppression reactance L01
Stream, including AC compounent and DC component.In process of the test, the modulated signal of control test product valve 1 and test product valve 2 so that test product
Electric current in valve, which is met, to be required；Adjust the secondary voltage of transformer so that the internal dc voltage of test product valve meets test requirements document.
Above example is implemented lower premised on technical solution of the present invention, gives detailed embodiment and tool
The operating process of body, but protection scope of the present invention is not limited to the above embodiments.Method therefor is such as without spy in above-described embodiment
It is conventional method not mentionlet alone bright.
Claims (8)
1. the converter valve Tests at Steady State device of bias voltage is undertaken using electric capacity, it is characterised in that including test product valve 1, examination
Product valve 2, electric capacity CL, transformer T1, loop current suppression reactance L01, switch K01 and AC-testing supply S0；
Described test product valve 1 is connected and is grounded with the one end of test product valve 2, and other end is connected on the two of loop current suppression reactance L01 respectively
Side, after transformer T1 vice-side winding is connected with electric capacity CL, one end ground connection, other end meets any of loop current suppression reactance L01
One end, transformer T1 primary side winding after switch K01 concatenations with AC-testing supply S0 with being connected.
2. use electric capacity according to claim 1 undertakes the converter valve Tests at Steady State device of bias voltage, its feature
It is, described transformer T1 can use pressure regulator, by the slow pressure regulation of pressure regulator to hookup in process of the test
Charged.
3. use electric capacity according to claim 1 undertakes the converter valve Tests at Steady State device of bias voltage, its feature
It is, charging resistor R can also be in series with the middle of transformer T1 and switch K01, and side is also parallel with charging resistor R
Way switch K02, is charged in process of the test by charging resistor and by-pass switch to hookup.
4. use electric capacity according to claim 1 undertakes the converter valve Tests at Steady State device of bias voltage, its feature
It is, two test product valve balanced arrangements can also be made using two loop current suppression reactance L01 and L02, connected mode is：Test product valve
1 is connected and is grounded with the one end of test product valve 2, and other end is connected with loop current suppression reactance L01, L02, transformer T1 vice-side winding
After being connected with electric capacity CL, one end ground connection, other end is connected on loop current suppression reactance L01, L02 midpoint.
5. the test method of the converter valve Tests at Steady State device of bias voltage is undertaken using electric capacity, it is characterised in that including：
(1), it is necessary to be charged to them when the cell capacitance voltage in test product valve is not set up also, there are two kinds of chargings
Method is optional：Charged using pressure regulator T1 and carry out two kinds of charging using charging resistor R and charging resistor by-pass switch K02
Charging method；
(2) AC-testing supply is used, the method that alternately charging is carried out to electric capacity and test product valve in charging process；
(3) method that the DC voltage component between test product valve end is undertaken using electric capacity CL：Because external connection AC transformer,
Its both end voltage is industrial-frequency alternating current, therefore, is connected on the electric capacity of transformer secondary by the DC voltage between undertaking test product valve end
Component, and AC transformer produces the alternating current voltage component between test product valve end；
(4), it is necessary to when adjusting DC voltage component between the end of test product valve, slowly adjust the modulation of test product valve in process of the test
Signal, it is ensured that DC voltage component between its end is slowly varying, and the voltage on such series capacitance CL can follow test product valve
End between voltage DC component, it is to avoid shoved in Transformer Winding because voltage difference is produced, therefore in test product valve DC voltage
During component variation, the voltage on electric capacity CL also changes simultaneously, keeps test product valve and the total voltage on electric capacity CL and power supply electricity
Weighing apparatus is flattened, so as to also achieve complementary energy of the AC power to test product valve；
(5) in process of the test, the modulated signal of control test product valve 1 and test product valve 2 so that the electric current in test product valve, which is met, to be required；
Control complementary energy valve modulated signal so that the capacitor voltage balance in complementary energy valve, test product valve 1, test product valve 2, and meet experiment will
Ask.
6. use electric capacity according to claim 5 undertakes the experiment side of the converter valve Tests at Steady State device of bias voltage
Method, it is characterised in that described is using the pressure regulator T1 methods charged：
Step 1: when starting, pressure regulator T1 being transferred to and is output as no-voltage, K01 is closed；
Step 2: then slow rise pressure regulator T1 output voltages, due to test product valve, series capacitance CL, transformer secondary winding
It is to be connected in series, if test product valve is made up of half-bridge cells, test product valve is charged in the positive half-wave of AC power, and AC power
Negative half-wave to series capacitance CL charge；If test product valve is made up of full bridge unit, the positive and negative half-wave of AC power, electric current is all right
Unit is charged；If test product valve is made up of half-bridge cells and full bridge unit mixing, in the positive half-wave of AC power, electric current pair
All unit chargings, and the negative half-wave of AC power, electric current charge to full bridge unit therein and series capacitance；
Step 3: waiting pressure regulator to rise to assigned voltage, charging terminates, and bridge arm capacitance voltage on test product valve at this moment and waits
The voltage on series capacitance CL is added in the crest voltage of AC power, experiment can be started.
7. use electric capacity according to claim 5 undertakes the experiment side of the converter valve Tests at Steady State device of bias voltage
Method, it is characterised in that described is using charging resistor R and charging resistor by-pass switch the K02 method charged：
Step 1: closing K01 first, start to test product valve and series capacitance CL chargings；
Step 2: because test product valve, series capacitance CL, transformer secondary winding are to be connected in series, if test product valve is by half-bridge list
Member composition, charges in the positive half-wave of AC power to test product valve, and the negative half-wave of AC power charges to series capacitance CL；If
Test product valve is made up of full bridge unit, and the positive and negative half-wave of AC power, electric current all charges to unit；If test product valve is by half-bridge
Unit and full bridge unit mixing composition, in the positive half-wave of AC power, electric current charges to all units, and negative the half of AC power
Ripple, electric current charges to full bridge unit therein and series capacitance；
Step 3: waiting after end unit voltage stabilization to be charged, closure charging resistor by-pass switch K01；At this moment on test product valve
Bridge arm capacitance voltage and equal to AC power crest voltage plus the voltage on series capacitance CL, experiment can be started.
8. use electric capacity according to claim 5 undertakes the experiment side of the converter valve Tests at Steady State device of bias voltage
Method, it is characterised in that also including following methods：In process of the test, in test product valve 1, test product valve 2 and loop current suppression reactance L01
Required test current is flowed through；The generation of test current is produced by test product valve 1 is different with the debugging signal of test product valve 2；Allusion quotation
Under the test situation of type, the modulating wave of test product valve 1 and test product valve 2 is all given as sinusoidal signal, and both amplitudes, frequency are equal, phase
A poor small angle；Therefore, on test product valve 1 and the loop current suppression reactor of the centre of test product valve 2, the difference of both voltages will be born
Value, thus produce the sinusoidal circulation of an identical frequency；And capacitance voltage difference small between two test product valves will cause circulation
Suppress the DC component on reactor；Sinusoidal circulation and DC component have synthesized required test current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293866.XA CN106997012B (en) | 2017-04-28 | 2017-04-28 | Converter valve steady-state operation test device and method adopting capacitor to bear bias voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293866.XA CN106997012B (en) | 2017-04-28 | 2017-04-28 | Converter valve steady-state operation test device and method adopting capacitor to bear bias voltage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106997012A true CN106997012A (en) | 2017-08-01 |
| CN106997012B CN106997012B (en) | 2023-07-14 |
Family
ID=59434490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710293866.XA Active CN106997012B (en) | 2017-04-28 | 2017-04-28 | Converter valve steady-state operation test device and method adopting capacitor to bear bias voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106997012B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551844A (en) * | 2020-05-06 | 2020-08-18 | 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 | Flexible direct current converter valve type test device and method |
| CN111650504A (en) * | 2020-06-05 | 2020-09-11 | 全球能源互联网研究院有限公司 | Circuit and method for simulating switching-on and switching-off voltage of converter valve |
| CN112067878A (en) * | 2020-09-02 | 2020-12-11 | 邯郸市科维电气有限公司 | Capacitance current on-line measuring method and device for secondary side bias capacitor of grounding transformer |
| CN113567107A (en) * | 2021-06-15 | 2021-10-29 | 南京南瑞继保电气有限公司 | Cascaded converter valve testing system and control method thereof |
| CN114167272A (en) * | 2021-12-03 | 2022-03-11 | 广东电网有限责任公司 | Flexible direct current converter valve steady-state operation test device and method |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006067672A (en) * | 2004-08-25 | 2006-03-09 | Matsushita Electric Ind Co Ltd | Power supply apparatus |
| DE102005022559A1 (en) * | 2005-05-17 | 2006-11-30 | Johannes Gies | Circuit arrangement for electronic ballast, has power switch, which is locked and current flow to fluorescent lamp is interrupted, due to reduction of effective voltage, so that power value at lamp is held constant |
| CN102175942A (en) * | 2011-02-11 | 2011-09-07 | 中国电力科学研究院 | Steady state operation test method for flexible direct-current power transmission modular multilevel converter (MMC) high-voltage sub module |
| CN102780416A (en) * | 2012-08-15 | 2012-11-14 | 株洲变流技术国家工程研究中心有限公司 | Modularization-based multi-level converter flexible direct current transmission device and system thereof |
| CN103051213A (en) * | 2012-12-11 | 2013-04-17 | 国网智能电网研究院 | Energy replenishing power supply system and control method thereof for MMC valve |
| CN103487732A (en) * | 2013-09-24 | 2014-01-01 | 许继集团有限公司 | Method and device for testing alternating-current and direct-current voltages between valve ends of modularized multi-level converter valve |
| CN203720321U (en) * | 2014-01-21 | 2014-07-16 | 清华大学 | Power hedging test device for modularized multi-level converter valves |
| CN103941176A (en) * | 2014-04-29 | 2014-07-23 | 中国南方电网有限责任公司超高压输电公司广州局 | Fault detection system for VBE system device of high-voltage direct current transmission converter valve |
| CN105305575A (en) * | 2015-10-27 | 2016-02-03 | 中国科学院电工研究所 | Charging method of flexible direct current power transmission converter valve testing device |
| CN105372585A (en) * | 2015-11-18 | 2016-03-02 | 中国西电电气股份有限公司 | Flexible DC transmission project voltage source converter valve short circuit current test device |
| CN105372586A (en) * | 2015-11-18 | 2016-03-02 | 中国西电电气股份有限公司 | Flexible DC transmission voltage source converter valve operation test device |
| CN105490552A (en) * | 2016-01-12 | 2016-04-13 | 中国电力科学研究院 | Modular multilevel converter (MMC) based solid-state transformer and control method thereof |
-
2017
- 2017-04-28 CN CN201710293866.XA patent/CN106997012B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006067672A (en) * | 2004-08-25 | 2006-03-09 | Matsushita Electric Ind Co Ltd | Power supply apparatus |
| DE102005022559A1 (en) * | 2005-05-17 | 2006-11-30 | Johannes Gies | Circuit arrangement for electronic ballast, has power switch, which is locked and current flow to fluorescent lamp is interrupted, due to reduction of effective voltage, so that power value at lamp is held constant |
| CN102175942A (en) * | 2011-02-11 | 2011-09-07 | 中国电力科学研究院 | Steady state operation test method for flexible direct-current power transmission modular multilevel converter (MMC) high-voltage sub module |
| CN102780416A (en) * | 2012-08-15 | 2012-11-14 | 株洲变流技术国家工程研究中心有限公司 | Modularization-based multi-level converter flexible direct current transmission device and system thereof |
| CN103051213A (en) * | 2012-12-11 | 2013-04-17 | 国网智能电网研究院 | Energy replenishing power supply system and control method thereof for MMC valve |
| CN103487732A (en) * | 2013-09-24 | 2014-01-01 | 许继集团有限公司 | Method and device for testing alternating-current and direct-current voltages between valve ends of modularized multi-level converter valve |
| CN203720321U (en) * | 2014-01-21 | 2014-07-16 | 清华大学 | Power hedging test device for modularized multi-level converter valves |
| CN103941176A (en) * | 2014-04-29 | 2014-07-23 | 中国南方电网有限责任公司超高压输电公司广州局 | Fault detection system for VBE system device of high-voltage direct current transmission converter valve |
| CN105305575A (en) * | 2015-10-27 | 2016-02-03 | 中国科学院电工研究所 | Charging method of flexible direct current power transmission converter valve testing device |
| CN105372585A (en) * | 2015-11-18 | 2016-03-02 | 中国西电电气股份有限公司 | Flexible DC transmission project voltage source converter valve short circuit current test device |
| CN105372586A (en) * | 2015-11-18 | 2016-03-02 | 中国西电电气股份有限公司 | Flexible DC transmission voltage source converter valve operation test device |
| CN105490552A (en) * | 2016-01-12 | 2016-04-13 | 中国电力科学研究院 | Modular multilevel converter (MMC) based solid-state transformer and control method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李建国;宋强;刘文华;黄永章;赵彪;王裕;: "一种模块化多电平换流阀的等效功率对冲试验及其控制方法" * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551844A (en) * | 2020-05-06 | 2020-08-18 | 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 | Flexible direct current converter valve type test device and method |
| CN111551844B (en) * | 2020-05-06 | 2021-04-06 | 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 | Flexible direct current converter valve type test device and method |
| CN111650504A (en) * | 2020-06-05 | 2020-09-11 | 全球能源互联网研究院有限公司 | Circuit and method for simulating switching-on and switching-off voltage of converter valve |
| CN112067878A (en) * | 2020-09-02 | 2020-12-11 | 邯郸市科维电气有限公司 | Capacitance current on-line measuring method and device for secondary side bias capacitor of grounding transformer |
| CN113567107A (en) * | 2021-06-15 | 2021-10-29 | 南京南瑞继保电气有限公司 | Cascaded converter valve testing system and control method thereof |
| CN114167272A (en) * | 2021-12-03 | 2022-03-11 | 广东电网有限责任公司 | Flexible direct current converter valve steady-state operation test device and method |
| CN114167272B (en) * | 2021-12-03 | 2024-04-12 | 广东电网有限责任公司 | Flexible direct current converter valve steady-state operation test device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106997012B (en) | 2023-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106990309B (en) | Converter valve steady-state operation test device and method adopting alternating-current test power supply | |
| CN106997012A (en) | The converter valve Tests at Steady State device and method of bias voltage is undertaken using electric capacity | |
| CN107966626B (en) | Power module test system of power electronic transformer | |
| Zhao et al. | Switched Z-source isolated bidirectional DC–DC converter and its phase-shifting shoot-through bivariate coordinated control strategy | |
| CN103487732B (en) | Alterating and direct current compression testing device and method between the valve end of modular multilevel converter valve | |
| CN102323545A (en) | Power loop test method for steady-state operation test of flexible direct current power transmission MMC (Modular Multilevel Converter) valve | |
| CN108574400B (en) | Alternating current-direct current hybrid large-range adjustable experimental power supply and control method thereof | |
| CN111446861A (en) | DC/DC converter and control method thereof | |
| CN104714132A (en) | Flexible direct current power transmission converter performance testing platform and control method thereof | |
| CN105591548A (en) | Self-balance type power electronic transformer based on multiport high-frequency transformer | |
| CN105305843A (en) | Three-phase series half H-bridge modular multilevel DC converter and control method thereof | |
| CN109104097A (en) | A kind of high frequency transformer operating test device | |
| Costa et al. | Evaluation of a variable-inductor-controlled LLC resonant converter for battery charging applications | |
| CN110618319B (en) | Device for measuring dq impedance of VSC type electric locomotive and control method thereof | |
| CN108809132A (en) | Hybrid MMC half-bridges submodule capacitor voltage balance method | |
| CN102890209B (en) | Continuous current operation testing device of multi-level converter half-bridge type sub-module | |
| Niyitegeka et al. | Phase shift modulation and DC-link’s voltage balancing control for a DAB DC-DC converter | |
| CN206975124U (en) | The converter valve Tests at Steady State device of bias voltage is undertaken using electric capacity | |
| CN207114647U (en) | A kind of converter valve Tests at Steady State device using AC-testing supply | |
| KR20110034898A (en) | 18-step back-to-back voltage source converter system for hvdc application | |
| Guo et al. | Research on topology and control of household energy routers based on direct AC/AC power electronic transformer | |
| CN115128348A (en) | Disturbance voltage injection device for impedance measurement and control method | |
| CN111416542B (en) | Half-bridge type modular multilevel single-phase inverter and modulation method | |
| Facchinello et al. | AC-AC hybrid dual active bridge converter for solid state transformer | |
| Borges et al. | A ISOP AC-AC hybrid switched-capacitor SRC for solid state transformer applications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Haitao Inventor after: Yu Fuxuan Inventor after: Guo Ruihan Inventor after: Han Shimiao Inventor after: Han Jinru Inventor after: Weng Haiqing Inventor after: Wang Guoqiang Inventor after: Yi Rong Inventor after: Yue Wei Inventor after: Liao Qiyan Inventor after: Pan Jingcheng Inventor after: Wang Zhenhan Inventor after: Zhang Tongkai Inventor before: Zhang Haitao Inventor before: Weng Haiqing Inventor before: Wang Guoqiang Inventor before: Yi Rong Inventor before: Yue Wei Inventor before: Liao Qiyan |
|
| CB03 | Change of inventor or designer information | ||
| CB02 | Change of applicant information |
Address after: 114000 212 Yue Ling Road, Anshan, Liaoning Applicant after: Rongxin Huike Electric Co.,Ltd. Address before: 114000 212 Yue Ling Road, Anshan, Liaoning Applicant before: RONGXIN HUIKO ELECTRIC TECHNOLOGY Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |