Operation Evaluation Method of High Proportion Renewable Energy Power System Based on Exchange Convolution

doi:10.11930/j.issn.1004-9649.201801015

Abstract

Abstract: With the large-scale construction of renewable energy, it is urgent to assess the power system with high proportion of new energy and determine its operation mode. It is of great significance to study the operation evaluation of power system with high proportion of new energy. In view of the present evaluation methods that have not fully considered the peak shaving potential of generator units, the method of exchange convolution is proposed. On the basis of the probability production simulation that is based on presently widely used equivalent electricity function method and equivalent electricity frequency method, the load duration curve and equivalent load frequency curve are firstly established, and the pre-probability production simulation is carried out; and then, the high-frequency starting units are determined according to the pre- probability production simulation results; finally the convolution is exchanged based on the exchange convolution method. A case study is made on a practical power system, which verifies the effectiveness of the proposed method. Compared with the traditional method, the method proposed in this paper can give full play to the peak potential of the system and improve the effectiveness of the evaluation.

Key words: probability production simulation, exchange convolution, renewable energy, power system, operation evaluation

CLC Number:

TM711

WU Shaolei, FENG Yu, WU Kai, LU Wei, ZHAO Cheng, LUO Cheng. Operation Evaluation Method of High Proportion Renewable Energy Power System Based on Exchange Convolution[J]. Electric Power, 2019, 52(4): 25-31.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.201801015

https://www.electricpower.com.cn/EN/Y2019/V52/I4/25

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