Parallel resonance oscillation wave generation device

Abstract

The invention discloses a parallel resonance oscillation wave generation device. A frequency modulation and voltage regulation power supply AC, a capacitor C and an electric inductor L form a shunt circuit. The frequency of the power supply AC is adjusted to resonate with an LC circuit, then the output voltage of the power supply AC is adjusted to a preset value, the power supply AC is shutoff, and thus the damped oscillatory wave f(t) is produced on the LC circuit. During the concrete application, an exciting transformer T or a leakage inductance transformer TL is arranged between the power supply AC and the LC circuit, a primary side of the transformer is connected with the output of the power supply AC, and a secondary side of the transformer is parallelly connected with the LC circuit. When the leakage inductance transformer is adopted, a leakage inductor L of the secondary side of the leakage inductance transformer is parallelly connected with the capacitor C. The device has the advantages that the device can produce the oscillatory wave with the voltage of between 1 and 5,000kV on the LC circuit without the switching or shutoff of an electronic switch, and has broad application in sine wave withstand voltage and local discharge measurement of high-voltage equipment.

Description

technical field [0001] The invention relates to an oscillating wave generating device, in particular to a parallel resonant oscillating wave generating device which can be used in electric power tests. Background technique [0002] In the utility model patent No. ZL200820184923.7 "An Oscillatory Wave Generator for Electrical Equipment Test", the existing German SABA company's DC-excited oscillatory wave generator is clearly described, and the Disadvantages of DC excitation to generate damped oscillatory wave devices are described. [0003] In "An Oscillating Wave Generating Device for Electrical Equipment Test", it is proposed that the frequency modulation and voltage regulation power supply is used as the excitation, and after the resonant high voltage is generated through the LC series resonance, the LC series resonance circuit is closed with a low voltage electronic switch to generate damping Oscillating wave, during the process of the device generating the damped oscill...

AI Technical Summary

Problems solved by technology

[0003] In "An Oscillating Wave Generating Device for Electrical Equipment Test", it is proposed that the frequency modulation and voltage regulation power supply is used as the excitation, and after the resonant high voltage is generated through the LC series resonance, the LC series resonance circuit is closed with a low voltage electronic switch to generate damping Oscillatory wave, during the process of the device generating the damped oscillatory wave, the amplitude decrease of the damped oscillatory wave affects the conduction state of the electronic switch, which in turn affects the attenuation process of the damped oscillatory wave

Images