Coordinated Control of Distributed and Bulk Energy Storage for Alleviation of Post-Contingency Overloads

Yunfeng Wen, Chuangxin Guo and Shufeng Dong
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Yunfeng Wen: College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
Chuangxin Guo: College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
Shufeng Dong: College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China

Energies, 2014, vol. 7, issue 3, 1-22

Abstract: This paper presents a novel corrective control strategy that can effectively coordinate distributed and bulk energy storage to relieve post-contingency overloads. Immediately following a contingency, distributed batteries are implemented to provide fast corrective actions to reduce power flows below their short-term emergency ratings. During the long-term period, Pumped Hydro Storage units work in pumping or generation mode to aid conventional generating units keep line flows below the normal ratings. This problem is formulated as a multi-stage Corrective Security-constrained OPF (CSCOPF). An algorithm based on Benders decomposition was proposed to find the optimal base case solution and seek feasible corrective actions to handle all contingencies. Case studies based on a modified RTS-96 system demonstrate the performance and effectiveness of the proposed control strategy.

Keywords: smart grid; energy storage; security-constrained optimal power flow; corrective control; overload (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2014
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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