Probabilistic Load Flow Calculation of Power Systems Considering Wind Power Dispatching Strategies

doi:10.11930/j.issn.1004-9649.201608029

Abstract

Abstract: The paper proposes a method to calculate multi-point linearization probabilistic power flow of power systems considering the dispatching strategies of wind power. The proposed approach is based on the theory of Cumulant and Gram-charlier series, and takes into account the uncertainty of wind power, conventional power generation and load. To ensure accuracy, multi-point linearization technology is applied. In addition, the dispatching strategies of wind power are also considered in power flow calculation, as it did in power system economic power dispatching. Compared with simulation-based methods, the proposed approach can not only effectively improve the calculation accuracy compared with Cumulant and Gram-charlier series methods, but also can overcome the disadvantage of conventional probabilistic power flow calculation, i.e., the unbalanced power fluctuations are entirely absorbed by the slack bus. Therefore, the calculation results obtained through the proposed method is more consistent to reality.

Key words: probabilistic load flow, wind power, Cumulant, Gram-Charlier

CLC Number:

TM85

YANG Xiaojing, QIN Chao. Probabilistic Load Flow Calculation of Power Systems Considering Wind Power Dispatching Strategies[J]. Electric Power, 2018, 51(6): 54-59.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.201608029

https://www.electricpower.com.cn/EN/Y2018/V51/I6/54

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