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| Research on Voltage Sag Governance by Electrical Spring |
| Wang Xuchong1, Chen Bing2, Yi Xiang3, Luo Shanshan2, Chu Jiawei1 |
1. School of Electrical Engineering, Southeast University, Nanjing 210096;
2. State Grid Jiangsu Electric Power Company Research Institute, Nanjing 210000;
3. NARI Technlogy Co., Ltd, Nanjing 211106 |
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Abstract Voltage sag has become one of the most serious power quality problems, to meet the distributed development and refinement of the power grid needs, electrical spring is applied to voltage sag governance in this paper. On the basis of elaborating and deriving working principle of electrical spring, this paper study on the compensation strategy of electrical spring, a simulation model is built to exam the effect when voltage sag happen. The result show that, electrical spring can detect voltage sag quickly when voltage sag happen, and critical load is compensated when the voltage sag is transferred to non-critical load at the same time.
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Published: 24 February 2017
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2017, Vol. 18 
