Phase-based partial discharge generation device and method with adjustable discharge capacity and density

Abstract

The invention provides a phase-based partial discharge generation device and a phase-based partial discharge generation method with adjustable discharge capacity and density. The phase-based partial discharge generation device comprises a main control unit, a PWM circuit, a filtering circuit, a pulse generation circuit, a phase shaping circuit, a key and a knob switch, wherein the pulse generationcircuit is used for generating a discharge pulse according to an instruction of the main control unit; the PWM circuit is used for generating a pulse voltage according to the instruction of the maincontrol unit, after the pulse voltage is stabilized and smoothed into a DC voltage by means of the filtering circuit, inputting the DC voltage into the pulse generation circuit to perform voltage regulation on the pulse generation circuit, and further outputting stable discharge voltage; and the phase shaping circuit is used for shaping a phase pulse output from the main control unit into a sinusoidal signal to serve as a phase output signal. The phase-based partial discharge generation device and the phase-based partial discharge generation method can realize verification and performance evaluation of a partial discharge monitoring system and equipment thereof, thereby guaranteeing the safe operation of the partial discharge monitoring system, finally guaranteeing the safe operation of cables, and guaranteeing the stability and reliability of power supply.

Description

technical field [0001] The present disclosure relates to the technical field of analog partial discharge pulse generators, in particular to a partial discharge generation device and method with adjustable phase-based discharge volume and density. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] With the rapid development of the national economy, the demand for power is increasing day by day, and the construction of transmission lines is increasing simultaneously; at the same time, with the continuous advancement of science and technology, the safety requirements for power supply lines are also getting higher and higher. Partial discharge, as the main form of early insulation failure of high-voltage cable lines, is not only the main cause of insulation aging, but also the main characteristic parameter that characterizes the insulation cond...

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Problems solved by technology

[0004] The inventors of the present disclosure have found that the discharge simulation experimental devices currently on the market for testing the power cable partial discharge system monitoring system can only simulate simple discharge pulses, or the equipment is too large and complicated to carry and use

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