Quasi-Directional Variation and Rollback Mutation Based Differential Evolution Algorithm for Reactive Power Compensation of Wind Farms

doi:10.11930/j.issn.1004-9649.2013.5.71.5

Abstract

Abstract: Reactive power compensation of power grids is a kind of high-dimensional nonlinear optimization procedure that will become extremely complex with the integration of large-scale wind farms. Differential evolution algorithm is an effective method to solve the problem. To overcome its heavy dependence on the initial population and weak capability to approach to the optimization solution in the early process, a strategy based on quasi-directional variation and rollback mutation is presented to improve the performance of the algorithm. The sum of all bus voltage deviations is treated as the objective function and a computational model to design the compensation scheme is established. Compared with the ordinary differential evolution algorithm, the proposed algorithm is more efficient in searching for optimal solution with better convergence, such that the compensation scheme can be obtained with significant improvements in the area voltage profiles.

Key words: wind farm, reactive power compensation, differential evolution algorithm, quasi-directional variation, rollback mutation

CLC Number:

TM614

ZHENG Tai-yi, JIAO Shao-hua, ZHAO Hui-long, LIN Li. Quasi-Directional Variation and Rollback Mutation Based Differential Evolution Algorithm for Reactive Power Compensation of Wind Farms[J]. Electric Power, 2013, 46(5): 71-76.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2013.5.71.5

https://www.electricpower.com.cn/EN/Y2013/V46/I5/71

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