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Isolation switch automatic control method based on vector control

A technology of vector control and isolating switch, which is applied in vector control system, control of electromechanical brake, control of electromechanical transmission device, etc. It can solve the problems of accident expansion, endangering electrical equipment, affecting personal and equipment safety, etc., to ensure personal and equipment safety , avoid burning, and prevent serious electrical accidents

Pending Publication Date: 2020-02-21
国网宁夏电力有限公司超高压公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After the contacts are burned during operation, the discharge at the breakpoint will cause serious electrical accidents, endanger other electrical equipment, amplify the accident, and seriously affect the safety of people and equipment

Method used

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  • Isolation switch automatic control method based on vector control
  • Isolation switch automatic control method based on vector control
  • Isolation switch automatic control method based on vector control

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] In order to achieve the above object, a kind of vector control-based isolation switch automatic control method of the present invention mainly includes the following steps:

[0032] S1, obtain the motor speed and angle position signal and the current sampling signal of the motor drive output power supply; after obtaining the current sampling signal of the motor drive output power supply, perform CLARKE transformation and PARK transformation in sequence w...

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Abstract

The invention provides an isolation switch automatic control method based on vector control. The isolation switch automatic control method comprises the steps of obtaining motor rotating speed and corner position signals and current sampling signals of a motor driving output power source; using a motor vector control algorithm with speed feedback to generate a PWM modulation waveform of vector control; and carrying out electrical conversion on the PWM modulation waveform to obtain an electrical signal, carrying out IPM intelligent power control, and outputting a three-phase PWM voltage signalto the motor. The operating speed and torque of the operating mechanism motor are controlled through dynamic vectors, the operating position of a moving contact of the isolation switch is accurately dragged, so that the moving contact of the isolation switch accelerates to move close to a static contact during opening and closing and quickly crosses an area where an electric arc is easy to generate, and the purpose of preventing the contact from being burnt by the electric arc at the moment of opening and closing the isolation switch contact is achieved.

Description

technical field [0001] The invention relates to the technical field of isolating switches, in particular to an automatic control method for isolating switches based on vector control. Background technique [0002] In the substation, the isolating switch generally refers to the high-voltage isolating switch, that is, the isolating switch with a rated voltage of 1kV and above. High reliability requirements have a great impact on the safe operation of substations. In the substation, a group of isolating switches are generally installed before and after the circuit breaker to isolate the circuit breaker from the power supply to form an obvious break point. When maintenance is required, the uncharged part is disconnected from other live parts to ensure the work during maintenance. Safety. The isolating switch can be used for maintenance and section isolation. The reliable insulation capacity of the isolating switch fracture is used to isolate the electrical equipment that needs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H31/04H01H31/08H02P21/22H02P27/08
CPCH01H31/04H01H31/08H02P27/08H02P21/22
Inventor 刘志远梁守硕陆洪建赵欣洋李宁于晓军杨晨岑登青赵健安燕杰陈昊阳黄欣尹琦云崔鹏赵希洋李伟王玄之杜巍
Owner 国网宁夏电力有限公司超高压公司
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