Control strategy of cascade STATCOM based on adaptive least square support vector machine and inverse system

被引：0
|
作者：
Yu H.-L. [1 ]
Wang X. [1 ]
Yang D. [1 ]
Li W.-J. [1 ]
机构：
[1] College of Information Science and Engineering, Northeastern University, Shenyang
来源：
Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2017年 / 21卷 / 07期
关键词：
Inverse system; Least squares support vector machine; Linear quadratic regulator; Static synchronous compensator;
D O I：
10.15938/j.emc.2017.07.015
中图分类号：
学科分类号：
摘要：
A nonlinear mathematical model was established for the chain static synchronous compensator (STATCOM), and the whole control of the system was decoupled by using the method of inverse system with feedback linearization. Due to change of the switch tube (Insulated Gate Bipolar Transistor, IGBT) at any time and disturbance uncertainty, these will often lead to changes in the parameters of the nonlinear model. To solve this problem, least squares support vector machine(LSSVM) adaptively estimated the nonlinear dynamic part, and eliminated it by way of feedback. The whole system was a decoupling model of the linear system, so, linear quadratic regulator(LQR) was applied to distribution network for reactive power compensation of the load. Simulation results show that the proposed algorithm solves the problem of reactive power compensation in distribution network, and has good robustness and dynamic performance. © 2017, Harbin University of Science and Technology Publication. All right reserved.
引用
收藏
页码：107 / 112
页数：5
相关论文
共 14 条
  • [1] Rahim A.H.M.A., Alam M.A., Amin I.E., Et al., Voltage stability control of a wind generation system, 2010 IEEE International Energy Conference, pp. 22-27, (2010)
  • [2] Wang X., Xiong C., Fu J., Et al., Dynamic modeling of chain circuit STATCOM, Proceedings of the CSEE, 32, 9, (2012)
  • [3] Lu Z., Sheng Y., Yang D., Et al., Simplified emotion-based design of D-STATCOM controller, Electric Machines and Control, 18, 3, (2014)
  • [4] Yang X., Xu Y., Xue H., Et al., Control delay elimination for cascaded multilevel STATCOM based on finite states model predictive control, Electric Machines and Control, 18, 11, (2014)
  • [5] Song Q., Liu W., Control of a cascade STATCOM with star configuration under unbalanced conditions, IEEE Transactions on Power Electronics, 24, 1, (2009)
  • [6] Wang S., Tan L., Li Y., Et al., Current tracking strategies of cascade STATCOM under two-phase coordinate system, Electric Machines and Control, 18, 1, (2014)
  • [7] Zha X., Zhang M., Sun J., Modeling of cascade D-STATCOM with decoupled state variable feedback linearization control, Proceedings of the CSEE, 30, 28, (2010)
  • [8] Jing D., Zhang Z., Control scheme of decoupled state feedback linearization of single-phase H-Bridge cascaded STATCOM, Power System Technology, 35, 11, (2011)
  • [9] Wei W., Liu W., Song Q., Et al., Research on fast dynamic control of static synchronous compensator using cascade multilevel inverters, Proceedings of the CSEE, 25, 3, (2005)
  • [10] Saman B., Babak P., Mukul C.C., Et al., Dual angle control for line-frequency-switched static synchronous compensators under system faults, IEEE Transactions on Power Electronics, 29, 6, (2014)
12