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| Disscussion on Protection Setting Problems of Z Grounding Transformer in Wind Power |
| Zhang Na |
| Yulin Power Supply Company, Yulin, Shaanxi 719000 |
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Abstract Along with the increasing proportion of wind power capacity in the grid, the grid power security is closely related to the stable operation of wind power. Based on a case of wind power system, this paper analyzes the zero sequence network when a single-phase grounding fault occurs to the power. The optimizing scheme is suggested to the two questions: one problem is how to configure the quick-breaking value, and another one is that mismatching of the over current protection an the zero sequence current leads to the malfunction. The safe and stable operation of the wind power system suggests that the scheme is feasible.
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Published: 13 January 2016
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2016, Vol. 17 
