Journal of Modern Power Systems and Clean Energy
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ISSN 2196-5625 CN 32-1884/TK
ISSN 2196-5625 CN 32-1884/TK
Yong Li
College of Electrical and Information Engineering, Hunan University, Changsha 410082, ChinaXuebo Qiao
College of Electrical and Information Engineering, Hunan University, Changsha 410082, ChinaChun Chen
School of Electrical and Information Engineering, Changsha University of Science and Technology, Changsha 410082, ChinaYi Tan
College of Electrical and Information Engineering, Hunan University, Changsha 410082, ChinaWenchao Tian
Zhangjiakou Power Supply Company, State Grid Jibei Electric Power Company Limited, Zhangjiakou 075000, ChinaQiuping Xia
Zhangjiakou Power Supply Company, State Grid Jibei Electric Power Company Limited, Zhangjiakou 075000, ChinaYijia Cao
College of Electrical and Information Engineering, Hunan University, Changsha 410082, ChinaKwang Y. Lee
Department of Electrical and Computer Engineering, Baylor University, Waco, Texas 76798-7356, USA1.College of Electrical and Information Engineering, Hunan University, Changsha 410082, China;2.School of Electrical and Information Engineering, Changsha University of Science and Technology, Changsha 410082, China;3.Zhangjiakou Power Supply Company, State Grid Jibei Electric Power Company Limited, Zhangjiakou 075000, China;4.Department of Electrical and Computer Engineering, Baylor University, Waco, Texas 76798-7356, USA
This work was supported in part by the National Key Research and Development Program of China (No. 2016YFB0900100), in part by the National Natural Science Foundation of China (No. 51707059), in part by the 111 Project of China (No. B17016), and in part by the Excellent Innovation Youth Program of Changsha of China (No. KQ1802029).
It is economic and secure to determine the optimal siting and sizing of the offshore wind farms (OWFs) integrated into the AC system through voltage-source converter high-voltage direct current (VSC-HVDC) links. In this paper, an integrated planning model for the VSC-HVDC-link-based OWFs and the capacitors is proposed, where a decomposition technique is presented to solve the proposed mixed-integer nonlinear programming (MINLP) problem and obtain the optimal solution. This model can optimize the siting and sizing of the OWFs to improve the voltage profile and reduce the adverse influence of the reactive power of the OWFs. With the proposed planning model, the total investment costs, operation costs and maintenance costs of the OWFs, VSC-HVDC links, and the capacitors can be minimized. Simulations on the modified IEEE 118-bus system show that the proposed integrated planning model can provide more economic scheme than the independent planning scheme, in which the capacitors are planned after the OWFs. Besides, a series of sensitivity analysis on certain equipment costs are studied to obtain the regular pattern for sizing VSC stations.
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