A method for suppressing induced voltage in particle flow generating device
A technology of induced voltage and generation device, applied in the field of electromagnetic compatibility of high-voltage power transmission engineering, can solve the problems of voltage influence, influence on the use of particle flow device, inability to accurately call out the synthetic field strength, etc., to expand the calibration range, improve reliability and safety effect
Active Publication Date: 2020-08-21
CHINA ELECTRIC POWER RES INST +1
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Problems solved by technology
However, when the current particle flow generator is calibrated, due to the existence of electrostatic induction, the voltages between the electrodes will affect each other, and the existence of the induced voltage will cause the particle flow generator to be unable to accurately call out the required synthetic field strength. It affects the use of the particle flow generator and cannot meet the calibration requirements
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[0037] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.
[0038] like figure 1 As shown, a method for suppressing induced voltage in a particle flow generating device, the particle flow generating device includes an ion flow electrode 1, a control electrode 2, a high voltage electrode 3 and a ground electrode 4, the method includes the following steps:
[0039] 1) Connect the first resistor R in parallel between the control electrode 2 and the high voltage electrode 3 2 , the second resistor R is connected in parallel between the high voltage electrode 3 and the ground electrode 4 3 ,
[0040] The first resistor R 2 The resistance value is based on the induced voltage on the control pole 2, the induced voltage on the high-voltage elec...
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The invention discloses a method for restraining the induced voltage in a particle flow generation device. The particle flow generation device comprises a particle flow electrode, a control electrode,a high-voltage electrode and a grounded electrode. The method comprises the steps that a first resistor is connected between the control electrode and the high-voltage electrode, and a second resistor is connected between the high-voltage electrode and the grounded electrode; a field mill is connected to the grounded electrode; the voltage of the control electrode is increased, the voltage of theparticle flow electrode is increased step by step until a corona happens to the particle flow electrode, and meanwhile, the voltage of the control electrode and the high-voltage electrode is adjusted; after the corona happens to the particle flow electrode, the field mill is calibrated through a direct current combined field on the upper surface of the grounded electrode. By means of the method,the induced voltage generated when the particle flow generation device calibrates the measuring instrument (the field mill) can be effectively restrained, and meanwhile, it is guaranteed that overvoltage breakdowns do not happen between the electrodes of all electrode layers, so that the reliability and the safety of the device are improved.
Description
technical field [0001] The invention relates to the technical field of electromagnetic compatibility of high-voltage power transmission engineering, in particular to a method for suppressing induced voltage in a particle flow generating device. Background technique [0002] In recent years, the construction of DC transmission lines in my country has developed rapidly, and the electromagnetic environment around DC transmission lines has attracted more and more attention. The DC synthesis field is the main electromagnetic environment parameter of DC transmission lines and substations. The DC synthesis field is generated by the line voltage. The total field strength combined by the nominal field and the electric field vector generated by the space charge, the DC combined field is generally measured by a DC combined field measuring instrument. In order to accurately measure the size of the DC combined field, the measuring instrument needs to be calibrated. Calibrate the DC synthet...
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IPC IPC(8): G01R35/00G01R29/12
CPCG01R29/12G01R35/005
Inventor 王延召张建功张业茂周兵倪园胡静竹赵军干喆渊刘兴发谢辉春路遥刘震寰
Owner CHINA ELECTRIC POWER RES INST