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An Improved Corrective Security Constrained OPF for Meshed AC/DC Grids With Multi-Terminal VSC-HVDC

Abstract

This paper presents an improved corrective security constrained optimal power flow (CSCOPF) for a meshed AC/DC power transmission network with voltage source converter based multi-terminal HVDC (VSC-MTDC) grids. The security constrains of N-1 contingencies for both AC and DC networks are fully considered in the CSCOPF problem. The corrective actions employed in this paper include not only the traditional long-term rescheduling control actions of the AC system, but also the short term post-contingency fast corrective control of multi-terminal VSC-HVDC. A hybrid method is developed to solve the improved CSCOPF problem and the effectiveness of the proposed method is evaluated and demonstrated in this paper by two example meshed AC/DC power systems.

Acceptance Date Feb 9, 2015
Publication Date Feb 9, 2015
Journal IEEE Transactions on Power Systems
Print ISSN 0885-8950
Publisher Institute of Electrical and Electronics Engineers (IEEE)
Pages 485 - 495
DOI https://doi.org/10.1109/TPWRS.2015.2396523
Publisher URL https://ieeexplore.ieee.org/document/7036111

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