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Reactive Power Optimization of Distribution Networks with DG based on a Directional GA-PSO Hybrid Algorithm |
Wang Shuhong, Shao Zhenguo |
College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350116 |
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Abstract A directional reactive power optimization method for distribution networks with distributed generation that combine genetic algorithm (GA) and particle swarm optimization (PSO) is proposed in this paper. It first builds the mathematical model aiming to the minimum sum of active power loss with the over-limit voltage, besides, improves the penalty coefficient of the over-limit voltage. Secondly it runs GA and PSO alternately. In the process, the mutation operation is guided by the incremental transmission losses of control variable computed by transposed Jacobian matrix method. In addition, memory operator and speed update operator are added to GA to protect the memory function of PSO and enhance convergence speed respectively. The simulation result shows that the method could reduce the randomicity of GA and reduce the possibility of trap in local optimum in PSO.
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Published: 19 May 2016
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Cite this article: |
Wang Shuhong,Shao Zhenguo. Reactive Power Optimization of Distribution Networks with DG based on a Directional GA-PSO Hybrid Algorithm[J]. Electrical Engineering, 2016, 17(5): 16-22.
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URL: |
http://dqjs.cesmedia.cn/EN/Y2016/V17/I5/16
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