Power grid neutral point flexible grounding current compensation system
A neutral point grounding, flexible grounding technology, applied in reactive power compensation, reactive power adjustment/elimination/compensation, AC network to reduce harmonics/ripples, etc., can solve equipment manufacturing difficulties, power grid neutral point grounding The problem of a single method, etc., achieves the effect of facilitating the protection configuration, improving the accuracy of the protection action, reducing the number of devices or the withstand voltage requirements.
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[0034] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0035] figure 1 It is a circuit structure diagram of the neutral point flexible grounding compensation system of the present invention;
[0036] refer to figure 1 , a neutral point flexible grounding current compensation system according to an embodiment of the present invention, specifically includes: a grounding transformer 10, a power electronic device 20, a controller 30, and a rectification circuit 40;
[0037] Wherein, the primary winding of the grounding transformer 10 is respectively connected to each phase of the power grid bus 100, such as phase A, phase B and phase C, the secondary winding of the grounding transformer 10 is a star-shaped structure with a neutral ...
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