DOI:10.35833/MPCE.2018.000538 Integrated Optimal Siting and Sizing for VSC-HVDC-link-based Offshore Wind Farms and Shunt Capacitors Page view: 0        Net amount: 118 Author: Yong Li1,Xuebo Qiao1,Chun Chen2,Yi Tan1,Wenchao Tian3,Qiuping Xia3,Yijia Cao1,Kwang Y. Lee4 Author Affiliation: 1.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 Foundation: 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). Abstract: 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. Keywords: Capacitor ; installed capacity ; point of common coupling (PCC) ; offshore wind farm (OWF) ; voltage-source converter high-voltage direct current (VSC-HVDC) link Received:October 21, 2018               Online Time:2021/03/22 View Full Text       Download reader