Reactive power optimization of AC-DC grid in consideration of VSC-HVDC transmission loss model

被引：0
|
作者：
Ke S. [1 ]
Zheng H. [1 ]
Lin Y. [1 ]
Yang X. [1 ]
Jiang P. [1 ]
机构：
[1] Economic Technology Research Institute, State Grid Fujian Electric Power Company, Fuzhou, 350012, Fujian Province
来源：
Ke, Shengzhou (ksz2007@163.com) | 1600年 / Power System Technology Press卷 / 40期
关键词：
AC-DC grid; Power loss; Reactive power optimization; VSC-HVDC;
D O I：
10.13335/j.1000-3673.pst.2016.10.018
中图分类号：
学科分类号：
摘要：
Power loss of VSC-HVDC affects accuracy of reactive power optimization result, so loss model changing with transmitted power must be taken into account in reactive power optimization. Constant resistance model is widely used for converter loss calculation, causing deviations in practical engineering calculations, and unreasonable result is obtained that converter loss is the same in both inverter and rectifier modes. In this paper, reactive power characteristics of Xiamen VSC-HVDC was analyzed, and relationship between power loss and reactive power under constant active power was fitted with numerical analysis method. Reactive power optimization model in consideration of VSC-HVDC transmission loss was also proposed, and reactive power optimization of 2016 Xiamen grid in different operation modes were calculated. Calculation results were compared with optimization results with constant resistance model and optimization results of Xiamen grid without VSC-HVDC. It verifies validity of the proposed model, and proves that VSC-HVDC can reduce reactive power configuration of Xiamen grid and realize hierarchical and regional reactive power balance. © 2016, Power System Technology Press. All right reserved.
引用
收藏
页码：3052 / 3058
页数：6
相关论文
共 18 条
  • [1] Di T., Li H., Fan P., Reactive power optimization of AC/DC power system based on singular value decomposition and interior point method, Transactions of China Electrotechnical Society, 24, 2, pp. 158-163, (2009)
  • [2] Zhang Y., Liu M., Li Q., A practical reactive power optimization method of AC/DC power grid incorporated with daily regulation constraints of DC transmission power, Power System Technology, 39, 3, pp. 791-796, (2015)
  • [3] Yu J., Yan W., Li W., Et al., An unfixed piecewise-optimal reactive power-flow model and its algorithm for AC-DC systems, IEEE Transactions on Power Systems, 23, 1, pp. 170-176, (2008)
  • [4] Thukaram D., Yesuratnam G., Optimal reactive power dispatch in a large power system with AC-DC and FACTS controllers, IET Proceedings-Generation, Transmission & Distribution, 2, 1, pp. 71-81, (2008)
  • [5] Nie Y., Li T., Liu F., Et al., A new AC-DC reactive optimal power flow model based on nonlinear interior point method, Power System Protection and Control, 42, 10, pp. 36-40, (2014)
  • [6] Wei Z., Ji C., Sun G., Et al., Interior-point optimal power flow of AC-DC system with VSC-HVDC, Proceedings of the CSEE, 32, 19, pp. 89-95, (2012)
  • [7] Wei Z., Ji C., Zheng Y., Et al., Optimal power flow of AC-DC systems with VSC-HVDC based on a novel unified hybrid algorithm, Proceedings of the CSEE, 34, 4, pp. 635-643, (2014)
  • [8] Zheng C., Zhou X., Li R., Et al., Study on the steady characterisitic and algorithm of power flow for VSC-HVDC, Proceedings of the CSEE, 25, 6, pp. 1-5, (2005)
  • [9] He X., Li Z., Li T., Et al., Reactive power optimization of AC/DC power system with VSC-HVDC, Electric Technology, 2, 2, pp. 113-117, (2015)
  • [10] Drofenik U., Kolar J.W., A general scheme for calculating switching-and conduction-losses of power semiconductors in numerical circuit simulations of power electronic systems, Proceedings of the 2005 International Power Electronics Conference (IPEC'05), pp. 4-8, (2005)
12