A detection method for the anti-electromagnetic interference ability of the secondary equipment of the series capacitor compensation device

Abstract

The invention relates to the related technical field of secondary equipment of a series capacitor compensation device, in particular to a method of detecting the anti-electromagnetic interference capacity of secondary equipment of a series capacitor compensation device. The method comprises the steps: disconnecting a capacitor bridge arm branch circuit of the series capacitor compensation device from a low-voltage bus of the series capacitor compensation device; performing short circuit on one working branch circuit as a to-be-detected interference branch circuit; connecting a continuously adjusted high-frequency voltage source in parallel into two ends of a capacitor bridge arm so as to input test current until a preset test current value is reached; acquiring the interference induction current of the capacitor bridge arm branch circuit and all working branch circuits, and the interference induction voltage of an output-input port of the to-be-detected interference branch circuit; calculating the power-frequency interference current and interference amplitude value of the to-be-detected interference branch circuit. According to the method, the on-site detection on the anti-electromagnetic interference capacity of the secondary equipment of the series capacitor compensation device can be realized by carrying out small-range change on the on-site series capacitor compensation device.

Description

technical field [0001] The invention relates to the technical field related to secondary equipment of a series capacitance compensation device, in particular to a detection method for the anti-electromagnetic interference capability of the secondary equipment of a series capacitance compensation device. Background technique [0002] The series capacitor compensation device can improve the transmission capacity and stability of the system. It is mainly used in ultra-high voltage and above voltage levels, and the rated capacity can reach several hundred Mvar. Its working principle is shown in figure 1 . The equipment installation position of the series capacitor compensation device is high (up to more than ten meters), the number of equipment is large, the primary equipment and the secondary equipment are mixed, and the electromagnetic environment of the space is harsh. The secondary equipment installed on the series capacitor compensation device, such as the protection measu...

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Problems solved by technology

[0004] Based on this, it is necessary to provide a detection method for the anti-electromagnetic interference ability of the secondary equipment of the series capacitor compensation device in view of the technical problem that the anti-electromagnetic interference ability of the secondary equipment of the series capacitor compensation device cannot be detected on-site in the prior art

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