Two-Stage Coordination Optimization Control of Soft Open Point and Tie Switch in Active Distribution Network with High Penetration Renewable Energy Generation
1. College of Information and Electrical Engineering China Agriculture University Beijing 100083 China; 2. State Key Lab of Control and Simulation of Power Systems and Generation Equipment Department of Electrical Engineering Tsinghua University Beijing 100084 China
Abstract：Active distribution network (ADN) requires distribution network more flexible and elastic. However, high penetration renewable energy generation (REG) brings great challenges to cost-effective and safe operation of ADN. In this paper, aiming at the volatility and randomness of REG output, considering REG forecast errors, a two-stage coordination optimization control structure of soft open point (SOP) and tie switch is proposed. In day-ahead stage, taking the minimum power loss and the minimum REG reduction as the comprehensive objective, a sequential coordination optimization model of SOP and tie switch is established; in inner-day stage, a loop-locked rolling optimization control model based on model predictive control is built, to reduce the impact of the REG randomness output on ADN. A transforming method of reconfiguration constraint based on second-order cone model is proposed, which realizes the coordination optimization of SOP and tie switch by mixed-integer second-order cone programming algorithm. The results of case study show that the proposed method can increase REG penetrations while improving voltage quality and economic benefit of ADN.
丛鹏伟, 唐巍, 娄铖伟, 张博, 张璐. 含高渗透率可再生能源的主动配电网两阶段柔性软开关与联络开关协调优化控制[J]. 电工技术学报, 2019, 34(6): 1263-1272.
Cong Pengwei, Tang Wei, Lou Chengwei, Zhang Bo, Zhang Lu. Two-Stage Coordination Optimization Control of Soft Open Point and Tie Switch in Active Distribution Network with High Penetration Renewable Energy Generation. Transactions of China Electrotechnical Society, 2019, 34(6): 1263-1272.
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2019, Vol. 34 
