Multi-Objective Coordinated Planning of Source Network Based on Safety Factor and Coordination Factor
Zhang Xiaohui1, Li Yang2, Zhong Jiaqing1, Gao Fanfan1
1. Key Lab of Power Electronics for Energy Conservation and Motor Drive of Hebei Province Yanshan University Qinhuangdao 066004 China; 2. State Grid Chengde Power Supply Company Chengde 067000 China
Abstract In the distribution network system with distributed generation, it should be considered in the coordinated planning of the source network, not only economic cost but also safety and coordination. The line blocking compensation cost is added to the traditional economic objective function. The "safety factor" is defined as the system security objective function to improve its security capability with considering the security of distributed generation and grid line respectively. A "coordination factor" is proposed from the transmission coordination and structural coordination on both sides of the source and network. It is regarded as the coordination objective function to enhance the coordination ability on both sides. A multi-objective coordinated planning model is established based on safety factor and coordination factor. The planning result is determined by the multi-objective bacterial colony chemotaxis algorithm and the method of compromise solution. Finally, the IEEE 33 system is taken as an example for simulation research. The superiority of the proposed model is verified by comparing with the single-objective model. Through sensitivity analysis of the objective function, the feasibility of the proposed security and coordination objective function is verified.
Zhang Xiaohui,Li Yang,Zhong Jiaqing等. Multi-Objective Coordinated Planning of Source Network Based on Safety Factor and Coordination Factor[J]. Transactions of China Electrotechnical Society, 2021, 36(9): 1842-1856.
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