CN109932586A - Mutual inductor Electro Magnetic Compatibility detection device and method based on solid-state switch control - Google Patents
Mutual inductor Electro Magnetic Compatibility detection device and method based on solid-state switch control Download PDFInfo
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Abstract
The invention discloses a kind of mutual inductor Electro Magnetic Compatibility detection device and method based on solid-state switch control, which includes for generating the analog circuit in electromagnetic disturbance source and subject electronic mutual inductor；Switch in the analog circuit for generating electromagnetic disturbance source is the on-off for accurately controlling simulation harassing and wrecking source, realizes the solid-state switch of transient state electromagnetic process overall time accurately controlled.Repeatable demand of the detection device of the present invention for the detection test of mutual inductor Electro Magnetic Compatibility, design is using the method for being provided with the rapid solid-state switch of division before discharging gap, solves the problems, such as the discharge time control of discharging gap, by detecting the failure rate after can be reduced electronic mutual inductor equipment investment use, avoid maintenance and more exchange device repeatedly, a large amount of human and material resources, financial resources have been saved, working efficiency and working effect are effectively improved.
Description
Technical field
The present invention relates to electronic mutual inductor quality detection technology more particularly to a kind of mutual inductances based on solid-state switch control
Device Electro Magnetic Compatibility detection device and method.
Background technique
In recent years, electronic mutual inductor is since its insulation system is simple, dynamic range is big, small in size, light weight, output letter
The advantages that number can directly inputting Microcomputer metering and protection equipment interface, and be applied in intelligent substation.From current electricity
From the point of view of the pilot situation of minor mutual inductor, the reliability and stability of electronic mutual inductor need to be improved.Certain substations exist
When disconnecting switch switching operation, the thing that can not put into operation because electromagnetic compatibility leads to electronic transformer collector failure frequent occurrence
Therefore.
EMC test is according to IEC 60044-7/8 and GB 20840- in electronic mutual inductor type approval test at present
7/8 standard regulation carries out, including 2 radiation tests and 11 immunity experiments, is specifically defined and sees corresponding electromagnetic compatibility standard GB/
T 17626--2008.It is analyzed according to more the prototype test results, 2 radiation test percent of pass are very high, and only a few product is because of machine
The radiation of case sealing problem is exceeded.And failure rate is highest in 11 immunity experiments are as follows: surge (impact) immunity to interference, pulsed magnetic field
Immunity to interference, Clusters immunity to interference, oscillation wave immunity to interference and damped oscillation magnetic field immunity to interference.This several tests are mainly
Examine the electronic device of electronic mutual inductor to the immunity to interference of lightning wave and switch operation, exactly electronic mutual inductor electromagnetism is simultaneous
It is installed with the weak link of meter.And Clusters immunity experiment realizes that difficulty is larger in actual tests project, difficulty
It is in producing method and control method.
From the point of view of the actual field operation troubles of electronic mutual inductor statistics, in addition to the electromagnetic compatibility of current national regulations
Other than test, the factory performance detection test of electronic mutual inductor is also needed to increase special test project to simulate scene operation feelings
Condition is to examine the Electro Magnetic Compatibility of electronic mutual inductor.Wherein electronic mutual inductor the most outstanding when being isolator operation
It breaks down and output abnormality accident, leads to not put into operation.Therefore the examination of disconnecting switch division capacitive low current is built in laboratory
Test circuit (simulation generate Clusters), while electronic mutual inductor being connected access test loop, simulation scene every
Pass folding aircraft carrier line and capacitive low current load process are left, similar live transient state strong jamming is generated, examination is electric under this condition
The electromagnetic protection performance of minor mutual inductor.
But it is existing build disconnecting switch division capacitive low current test loop in laboratory, Lai Kaohe is in disconnecting switch
The shortcomings that test experiments of the electromagnetic protection performance of electronic mutual inductor, is as follows under the operating condition of division:
1) transient state electromagnetic pulse intensity cannot control；
2) transient state electromagnetic process overall time is unable to accurately control；
As described above, electronic mutual inductor equipment will make a service test at present, there is an urgent need to a set of in electromagnetic compatibility side
Face has standardized experimental rig.
Summary of the invention
The technical problem to be solved in the present invention is that for the defects in the prior art, providing a kind of based on solid-state switch control
The mutual inductor Electro Magnetic Compatibility detection device and method of system.
The technical solution adopted by the present invention to solve the technical problems is: a kind of mutual inductor electricity based on solid-state switch control
Magnetic is compatible with device for detecting performance, including the analog circuit and subject electronic mutual inductor for generating electromagnetic disturbance source；The use
Analog circuit in generation electromagnetic disturbance source includes sequentially connected power supply unit, source side artificial capacitor, solid-state switch, electric discharge
Ball gap, load-side artificial capacitor and adjustable grounded inductor；The power supply unit includes testing transformer and capacitive divider, described
Power supply unit is connect with transformer operating control system, and the transformer operating control system is used for the electricity of Control experiment transformer
The on-off of pressure liter, voltage drop and test voltage；The discharge ball gap is connect with ball gap controller, and the ball gap controller is for controlling
The spacing of ball gap processed；The solid-state switch is for accurately controlling the on-off in simulation harassing and wrecking source, realizing that transient state electromagnetic process is overall
The solid-state switch of time accurately controlled.
According to the above scheme, the solid-state switch is make-and-break time≤1ms solid-state switch.
According to the above scheme, the solid-state switch includes main mechanical switch and disconnecting switch, and the disconnecting switch passes through multiple
It is connect after diode and bipolar junction transistor parallel connection buffer circuit, discharge loop and absorption circuit with main mechanical switch.
According to the above scheme, the solid-state switch includes main mechanical switch, disconnecting switch and buffer loop, discharge loop and suction
Receive loop circuit, the disconnecting switch passes through the bridge circuit that 4 power diodes form, then bipolar junction transistor in parallel, slow
It is connect after refunds road, discharge loop and absorption circuit with main mechanical switch.
According to the above scheme, the solid-state switch is connect with solid-state switch control system, and the solid-state switch control system is used
In the accurately make-and-break time of control solid-state switch and the arcing on-off total time for simulating practical disconnecting switch.
According to the above scheme, the subject electronic mutual inductor includes subject electronic current mutual inductor and subject electronic type electricity
Press mutual inductor.
According to the above scheme, the subject electronic type voltage transformer is in parallel with load-side artificial capacitor, the subject electronics
Formula current transformer is arranged between discharge ball gap and load-side artificial capacitor.
According to the above scheme, voltage and current signal acquisition device setting by electronic mutual inductor and discharge ball gap it
Between, the voltage and current signal acquisition device is connect with recorder, the voltage and current acquisition device and recorder be used for every
High-frequency electromagnetic pulse voltage and current signal during closing simulation harassing and wrecking source system arcing is left to be acquired and record.
A kind of mutual inductor electromagnetism using the above-mentioned mutual inductor Electro Magnetic Compatibility detection device based on solid-state switch control
Compatible method for testing performance, comprising the following steps:
1) solid-state switch is disconnected by solid-state switch control system, and adjusts discharge ball gap spacing, keep its breakdown voltage small
In test voltage value；
2) it is boosted by transformer control system Control experiment transformer, so that testing transformer is gradually boosted, power supply side form
Quasi- capacitor institute energy reserve value is stepped up, and after testing transformer transmission voltage value reaches required test voltage, is stopped
Boosting；
3) by solid-state switch Control system simulation electromagnetic disturbance source, electromagnetic pulse is generated；
4) a transient voltage electric current is acquired by high frequency voltage current acquisition system and recorder, ground potential rises and subject
The status information of electric mutual inductor, and judge the working condition of harassing and wrecking source system and electric mutual inductor；
5) reach preset value when electromagnetic pulse action time, solid-state switch, test are disconnected by solid-state switch control system
Terminate, completes the performance detection of subject electric mutual inductor.
According to the above scheme, electromagnetism arteries and veins is generated by solid-state switch Control system simulation electromagnetic disturbance source in the step 3)
Punching, it is specific as follows: solid-state switch fast conducting to be controlled by solid-state switch control system, at this point, supply voltage is applied to electric discharge
Between the fracture of ball gap, with the variation of testing transformer output power-frequency voltage, when the air in gap cannot bear to be applied to it
When the voltage at both ends, the 1st breakdown in gap occurs, and forms the electric arc perforation in full gap, and power supply is put by load lateral capacitance composition
Electrical circuit generates pulse voltage and pulse current, and the voltage difference after the breakdown of ball gap between its fracture is substantially zeroed, and the electromagnetism of generation is disturbed
It disturbs and reaches maximum value, the arc extinction when high-frequency current reduces simultaneously zero passage, first time arc through terminates to extinguishing process；
Voltage after arc extinction between ball gap fracture is started from scratch to be established again, with the gradually liter of ball gap fracture voltage
Height, ball gap fracture puncture again, arc reignition；It is held in power supply and breaker is in "on" position, ball gap fracture electric arc
Restrike-extinguish-Reignition Process repeated, so as to cause a series of generation of electromagnetic disturbances.
The beneficial effect comprise that:
1, detection device of the present invention is directed to the repeatable demand of electromagnetic disturbance test, and design is used and set before discharging gap
The method for having set the rapid solid-state switch of division solves the problems, such as the discharge time control of discharging gap.
2, detection device of the present invention uses solid-state switch and its control system, to control the division of solid-state switch, from
And the on-off of the entire primary circuit of detection device is controlled, including the turn-on and turn-off of gap discharge, so as to preferable real
Now to the control of transient state electromagnetic pulse action time, harassing time error be can control within 1%.
4, there is detection device of the present invention transient state electromagnetic pulse intensity controlled, transient state electromagnetic process overall time accurately may be used
The features such as tune, device are simple, safe and reliable, econmics comparison is good, greatly reduces since the randomness of transient state electromagnetic process is led
The error of the Electro Magnetic Compatibility detection test of cause, solving conventional isolation switches division operating operation test can not be mutual as electronic type
The problem of sensor Electro Magnetic Compatibility standardized testing is tested.Failure after reducing electronic mutual inductor equipment investment use
Rate avoids maintenance repeatedly and more exchange device, has saved a large amount of human and material resources, financial resources, and improve work efficiency and work effect
Fruit.The meaning with standardized assays standard in the factory of later electronic mutual inductor and electromagnetic compatibility detection test before putting into operation
Justice.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the circuit diagram of the solid-state switch of the embodiment of the present invention；
In figure: 1- testing transformer；2- capacitive divider；3- transformer operating control system；4- source side artificial capacitor；
5- solid-state switch；6- solid-state switch control system；7- discharge ball gap；8- ball gap controller；9- voltage and current signal acquisition device；
10- recorder；11- is tested electronic current mutual inductor；12- is tested electronic type voltage transformer；13- load-side artificial capacitor.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, is not used to limit
The fixed present invention.
As shown in Figure 1, a kind of mutual inductor Electro Magnetic Compatibility detection device based on solid-state switch control, including for producing
The analog circuit and subject electronic mutual inductor in raw electromagnetic disturbance source；The analog circuit for generating electromagnetic disturbance source includes
Sequentially connected power supply unit, source side artificial capacitor 4, solid-state switch 5, discharge ball gap 7, load-side artificial capacitor 13 and adjustable
Grounded inductor；
Wherein, power supply unit includes testing transformer 1 and capacitive divider 2, the power supply unit and transformer operating control
System 3 processed connects, and the transformer operating control system 3 is for the voltage liter of Control experiment transformer 1, voltage drop and test electricity
The on-off of pressure；Testing transformer 1 is used to simulate the frequency high voltage power supply in practical substation field, and the capacitive divider 2 is used
In the voltage of real-time detection testing transformer 1, the source side artificial capacitor 4 is charged for simulating disconnecting switch in actual field
Edge of a knife lateral capacitance summation.
The discharge ball gap 7 is connect with ball gap controller 8, and the ball gap controller 8 is used to control the spacing of ball gap, can be with
Transient state pulse amplitude is controlled between 1.5-2.7 times of standard specified phase voltage.Discharge ball gap 7 is for simulating practical disconnecting switch
On-off arc process；The load-side artificial capacitor 13 is total for simulating disconnecting switch load edge of a knife lateral capacitance in actual field
With；The adjustable grounded inductor generated high-frequency inductor under high-frequency current effect for analog isolation switch ground lead.
Solid-state switch 5 is connect with solid-state switch control system 6, and the solid-state switch control system is for accurately controlling solid-state
Switch on-off time and the arcing on-off total time for simulating practical disconnecting switch.
As shown in Fig. 2, realizing the accurate control of transient state electromagnetic process overall time for the on-off in accurate control simulation harassing and wrecking source
System, the solid-state switch that the present invention uses are specific as follows: solid-state switch includes main mechanical switch, disconnecting switch and buffer loop, puts
Electrical circuit and absorption circuit circuit, the disconnecting switch pass through the bridge circuit that 4 power diodes form, then in parallel ambipolar
It is connect after transistor, buffer loop, discharge loop and absorption circuit with main mechanical switch.The solid-state switch be make-and-break time≤
The solid-state switch of 1ms.
Since the present invention is the transient state electromagnetic disturbance that analog isolation switch division operation generates, so focusing on accurate mould
The arcing time intended this transient state electromagnetic disturbance process, and survey the process is a few tens of milliseconds, entire disconnecting switch movement
Time is generally several hundred milliseconds.And solid-state switch used in the present invention, its turn-on time≤1ms, corresponding shutdown, in addition to crystalline substance
Brake tube turns off other than longest 10ms naturally, other full-controlled device turn-off time≤1ms.So harassing and wrecking time error of the invention can
To control within 1%, more there is engineering significance.
Being tested electronic mutual inductor includes subject electronic current mutual inductor 11 and subject electronic type voltage transformer 12, quilt
It is in parallel with load-side artificial capacitor 13 to try electronic type voltage transformer 12, the setting of subject electronic current mutual inductor 11 is being put
Between electric ball gap 7 and load-side artificial capacitor 13.
The setting of voltage and current signal acquisition device 9 is by between electronic mutual inductor and discharge ball gap, the voltage and current
Signal pickup assembly is connect with recorder 10, and the voltage and current acquisition device 9 and recorder 10 are used to simulate disconnecting switch
High-frequency electromagnetic pulse voltage and current signal during the system arcing of harassing and wrecking source are acquired and record.
A kind of mutual inductor electromagnetism using the above-mentioned mutual inductor Electro Magnetic Compatibility detection device based on solid-state switch control
Compatible method for testing performance, comprising the following steps:
1) solid-state switch is disconnected by solid-state switch control system, and adjusts discharge ball gap spacing, keep its breakdown voltage small
In test voltage value；
2) it is boosted by transformer control system Control experiment transformer, so that testing transformer is gradually boosted, power supply side form
Quasi- capacitor institute energy reserve value is stepped up, and after testing transformer transmission voltage value reaches required test voltage, is stopped
Boosting；
3) solid-state switch fast conducting is controlled by solid-state switch control system, at this point, supply voltage is applied to discharge ball
Between the fracture of gap, with the variation of testing transformer output power-frequency voltage, when the air in gap cannot bear to be applied to its both ends
Voltage when, the 1st breakdown in gap occur, formed full gap electric arc perforation, power supply by load lateral capacitance composition discharges back
Road generates pulse voltage and pulse current, and the voltage difference after the breakdown of ball gap between its fracture is substantially zeroed, and the electromagnetic disturbance of generation reaches
To maximum value, the arc extinction when high-frequency current reduces simultaneously zero passage, first time arc through terminates to extinguishing process；
Voltage after arc extinction between ball gap fracture is started from scratch to be established again, with the gradually liter of ball gap fracture voltage
Height, ball gap fracture puncture again, arc reignition；It is held in power supply and breaker is in "on" position, ball gap fracture electric arc
Restrike-extinguish-Reignition Process repeated, so as to cause a series of generation of electromagnetic disturbances；
4) a transient voltage electric current is acquired by high frequency voltage current acquisition system and recorder, ground potential rises and subject
The status information of electric mutual inductor, and judge the working condition of harassing and wrecking source system and electric mutual inductor；
5) reach preset value when electromagnetic pulse action time, solid-state switch, test are disconnected by solid-state switch control system
Terminate, completes the performance detection of subject electric mutual inductor.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (10)
1. a kind of mutual inductor Electro Magnetic Compatibility detection device based on solid-state switch control, including for generating electromagnetic disturbance source
Analog circuit and subject electronic mutual inductor；It is described for generate the analog circuit in electromagnetic disturbance source to include sequentially connected electricity
Source unit, source side artificial capacitor, solid-state switch, discharge ball gap, load-side artificial capacitor and adjustable grounded inductor；The power supply
Unit includes testing transformer and capacitive divider, and the power supply unit is connect with transformer operating control system, the transformation
On-off of the device operation control system for the voltage liter of Control experiment transformer, voltage drop and test voltage；The discharge ball gap
It is connect with ball gap controller, the ball gap controller is used to control the spacing of ball gap；The solid-state switch is for accurately controlling
It simulates the on-off in harassing and wrecking source, realize the solid-state switch of transient state electromagnetic process overall time accurately controlled.
2. the mutual inductor Electro Magnetic Compatibility detection device according to claim 1 based on solid-state switch control, feature
It is, the solid-state switch is make-and-break time≤1ms solid-state switch.
3. the mutual inductor Electro Magnetic Compatibility detection device according to claim 1 based on solid-state switch control, feature
It is, the solid-state switch includes main mechanical switch and disconnecting switch, and the disconnecting switch passes through multiple diodes and ambipolar
It is connect after coupled in parallel buffer loop, discharge loop and absorption circuit with main mechanical switch.
4. the mutual inductor Electro Magnetic Compatibility detection device according to claim 1 based on solid-state switch control, feature
It is, the solid-state switch includes main mechanical switch, disconnecting switch and buffer loop, discharge loop and absorption circuit circuit, institute
It states disconnecting switch and passes through the bridge circuit that 4 power diodes form, then bipolar junction transistor in parallel, buffer loop, discharge back
It is connect after road and absorption circuit with main mechanical switch.
5. the mutual inductor Electro Magnetic Compatibility detection device according to claim 1 based on solid-state switch control, which is characterized in that institute
It states solid-state switch to connect with solid-state switch control system, the solid-state switch control system is for accurately controlling the logical of solid-state switch
Disconnected time and the arcing on-off total time for simulating practical disconnecting switch.
6. the mutual inductor Electro Magnetic Compatibility detection device according to claim 1 based on solid-state switch control, feature
It is, the subject electronic mutual inductor includes subject electronic current mutual inductor and subject electronic type voltage transformer.
7. the mutual inductor Electro Magnetic Compatibility detection device according to claim 6 based on solid-state switch control, feature
It is, the subject electronic type voltage transformer is in parallel with load-side artificial capacitor, and the subject electronic current mutual inductor is set
It sets between discharge ball gap and load-side artificial capacitor.
8. the mutual inductor Electro Magnetic Compatibility detection device according to claim 1 based on solid-state switch control, feature
It is, voltage and current signal acquisition device setting is by between electronic mutual inductor and discharge ball gap, the voltage and current
Signal pickup assembly is connect with recorder, and the voltage and current acquisition device and recorder are used to simulate harassing and wrecking source to disconnecting switch
High-frequency electromagnetic pulse voltage and current signal during system arcing are acquired and record.
9. a kind of utilize any mutual inductor Electro Magnetic Compatibility based on solid-state switch control described in the claims 1 to 4
The mutual inductor Electro Magnetic Compatibility detection method of detection device, comprising the following steps:
1) solid-state switch is disconnected by solid-state switch control system, and adjusts discharge ball gap spacing, its breakdown voltage is made to be less than examination
Test voltage value；
2) it is boosted by transformer control system Control experiment transformer, testing transformer is made gradually to boost, source side simulation electricity
Hold institute's energy reserve value to be stepped up, after testing transformer transmission voltage value reaches required test voltage, stops boosting；
3) by solid-state switch Control system simulation electromagnetic disturbance source, electromagnetic pulse is generated；
4) mutual by transient voltage electric current of high frequency voltage current acquisition system and recorder acquisition, ground potential and subject electronics
The status information of sensor, and judge the working condition of harassing and wrecking source system and electric mutual inductor；
5) reach preset value when electromagnetic pulse action time, by solid-state switch control system disconnect solid-state switch, off-test,
Complete the Electro Magnetic Compatibility detection of subject electric mutual inductor.
10. the mutual inductance of the mutual inductor Electro Magnetic Compatibility detection device according to claim 9 based on solid-state switch control
Device Electro Magnetic Compatibility detection method, which is characterized in that disturbed in the step 3) by solid-state switch Control system simulation electromagnetism
Source is disturbed, electromagnetic pulse is generated, it is specific as follows: solid-state switch fast conducting to be controlled by solid-state switch control system, at this point, power supply
Voltage is applied between the fracture of discharge ball gap, with the variation of testing transformer output power-frequency voltage, when the air in gap cannot
When receiving is applied to the voltage at its both ends, the 1st breakdown in gap occurs, and forms the electric arc perforation in full gap, and power supply passes through load
Lateral capacitance constitutes discharge loop, generates pulse voltage and pulse current, and the voltage difference after the breakdown of ball gap between its fracture is substantially zeroed,
The electromagnetic disturbance of generation reaches maximum value, the arc extinction when high-frequency current reduces simultaneously zero passage, first time arc through to extinguishing
Process terminates；
Voltage after arc extinction between ball gap fracture is started from scratch to be established again, with gradually rising for ball gap fracture voltage, ball
Gap fracture punctures again, arc reignition；It is held in power supply and breaker is in "on" position, the weight of ball gap fracture electric arc
Combustion-extinguishing-Reignition Process repeated, so as to cause a series of generation of electromagnetic disturbances.
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| CN201811142492.2A CN109932586A (en) | 2018-09-28 | 2018-09-28 | Mutual inductor Electro Magnetic Compatibility detection device and method based on solid-state switch control |
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| CN201811142492.2A CN109932586A (en) | 2018-09-28 | 2018-09-28 | Mutual inductor Electro Magnetic Compatibility detection device and method based on solid-state switch control |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113759293A (en) * | 2021-09-01 | 2021-12-07 | 咸亨国际（杭州）电气制造有限公司 | Simulated power transformer for training and modeling method thereof |
| CN117031379A (en) * | 2023-10-08 | 2023-11-10 | 清华四川能源互联网研究院 | High-frequency characteristic verification circuit of current sensor and verification method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034973A (en) * | 2014-05-06 | 2014-09-10 | 国家电网公司 | Electronic current transformer testing system and testing method |
| CN105137135A (en) * | 2015-08-13 | 2015-12-09 | 国家电网公司 | Simulated electromagnetic disturbance source for isolating switch |
| CN107271945A (en) * | 2017-06-26 | 2017-10-20 | 国家电网公司 | A kind of system-level electronic mutual inductor EMC test system and method |
| CN107627906A (en) * | 2017-09-08 | 2018-01-26 | 中国船舶重工集团公司第七〇二研究所 | A kind of railway contact line overlap formula electricity segmentation arc suppressing means and its method |
-
2018
- 2018-09-28 CN CN201811142492.2A patent/CN109932586A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034973A (en) * | 2014-05-06 | 2014-09-10 | 国家电网公司 | Electronic current transformer testing system and testing method |
| CN105137135A (en) * | 2015-08-13 | 2015-12-09 | 国家电网公司 | Simulated electromagnetic disturbance source for isolating switch |
| CN107271945A (en) * | 2017-06-26 | 2017-10-20 | 国家电网公司 | A kind of system-level electronic mutual inductor EMC test system and method |
| CN107627906A (en) * | 2017-09-08 | 2018-01-26 | 中国船舶重工集团公司第七〇二研究所 | A kind of railway contact line overlap formula electricity segmentation arc suppressing means and its method |
Non-Patent Citations (3)
| Title |
|---|
| 陶翔 等: "基于IGBT的新型混合式高压直流断路器及控制策略", 《电力***及其自动化学报》 * |
| 顾东亮 等: "一种新型混合式断路器装置", 《电力***及其自动化学报》 * |
| 黄胜利 等: "交流固态开关技术综述", 《电器与能效管理技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113759293A (en) * | 2021-09-01 | 2021-12-07 | 咸亨国际（杭州）电气制造有限公司 | Simulated power transformer for training and modeling method thereof |
| CN117031379A (en) * | 2023-10-08 | 2023-11-10 | 清华四川能源互联网研究院 | High-frequency characteristic verification circuit of current sensor and verification method thereof |
| CN117031379B (en) * | 2023-10-08 | 2023-12-19 | 清华四川能源互联网研究院 | High-frequency characteristic verification circuit of current sensor and verification method thereof |
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Application publication date: 20190625 |
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