Z
Zhang Zhengyuan
Publications - 3
Citations - 13
Zhang Zhengyuan is an academic researcher. The author has contributed to research in topics: Signal & Controller (computing). The author has an hindex of 2, co-authored 3 publications receiving 13 citations.
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Patent
Method and system for on-line diagnosis of transformer winding deformation
TL;DR: In this article, a method and a system for on-line diagnosis of transformer winding deformation is presented. And the method comprises: injecting a sweep signal from a high-voltage lead-out line of a transformer winding by way of magnetic field induction; acquiring an excitation current signal induced on the highvoltage line of the transformer winding; obtaining the response current signal on the neutral ground line of transformer wound; and obtaining the frequency response curve according to the transfer function relationship.
Patent
Transformer winding deformation on-line diagnosis method and system
TL;DR: In this article, a transformer winding deformation on-line diagnosis method is presented, which comprises the following steps: injecting a sweep frequency signal to a neutral point grounding wire of atransformer winding, and obtaining a current signal I 1 sensed by the neutral point ground wire of the transformer winding, obtaining a voltage signal V 1 sensed in the ground wire, and constructing an equation based on the V 1, the I 1 and I 2, and determining the trajectory of each vector changing with the frequency f of the sweep frequency signals.
Patent
Switching device of high-voltage partial discharge models under high air pressure
TL;DR: In this article, a switching device for high-voltage partial discharge models under high air pressure was presented. But the authors only considered the case of a gas insulated metal-enclosed switchgear (GIS).