Small-signal model of MMC-UPFC with direct current control strategy

被引：0
|
作者：
Yang J. [1 ]
Cai H. [2 ]
Song P. [3 ]
Peng Z. [2 ]
Qi W. [2 ]
Xu Z. [1 ]
机构：
[1] College of Electrical Engineering, Zhejiang University, Hangzhou
[2] Economic Research Institute of State Grid Jiangsu Electric Power Co., Ltd., Nanjing
[3] National Electric Power Dispatching and Control Center, State Grid Corporation of China, Beijing
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2019年 / 39卷 / 10期
关键词：
Direct current control; Electromechanical transient; MMC; Small-signal model; UPFC;
D O I：
10.16081/j.epae.201909041
中图分类号：
学科分类号：
摘要：
UPFC(Unified Power Flow Controller) based on MMC(Modular Multilevel Converter) usually employs direct current control strategy. To analyze the small-signal stability characteristics of the power system connected with direct current controlled MMC-UPFC, in view of the general three-node topology UPFC, the small-signal models of its outer-loop controller, inner-loop controller, MMC and DC system are derived. The linearized formulation of UPFC output current is also deduced. Subsequently, the small-signal model of the traditional two-node topology UPFC is built, meanwhile, the approach to combine the UPFC model with the rest of the system is illustrated and the linearized model of the entire system is established. Finally, the effectiveness of the proposed small-signal model is verified by time-domain simulation and modal analysis based on a two-generator test system. © 2019, Electric Power Automation Equipment Press. All right reserved.
引用
收藏
页码：123 / 129
页数：6
相关论文
共 16 条
  • [1] Li X., Du J., Yao T., Et al., Research and application of sub-module test device for UPFC converter valve, Electric Power Automation Equipment, 38, 12, pp. 212-217, (2018)
  • [2] Li S., Wang T., Wu D., Et al., Power flow convergence characteristic of UPFC based on initial value evaluation and controllable range of power flow, Electric Power Automation Equipment, 38, 12, pp. 67-72, (2018)
  • [3] Song J., Feng X., Cui F., Et al., Dynamic mo-deling and internal characteristic simulation research of MMC-UPFC, Proceedings of the CSEE, 34, pp. 67-75, (2014)
  • [4] Liu G., Cai H., Qi W., Et al., Study on application of 500 kV unified power flow controller at southern power system of Suzhou, Power Capacitor & Reactive Power Compensation, 38, 6, pp. 119-124, (2017)
  • [5] Cai H., Qi W., Huang J., Et al., Application of UPFC in Nanjing western power system, Electric Power Construction, 36, 8, pp. 73-78, (2015)
  • [6] Wang H.F., A unified model for the analysis of FACTS devices in damping power system oscillations. Ⅲ. Unified Power Flow controller, IEEE Transactions on Power Delivery, 15, 3, pp. 978-983, (2000)
  • [7] Tambey N., Kothari M.L., Damping of power system oscillations with Unified Power Flow Controller(UPFC), IEE Generation, Transmission and Distribution, 150, 2, pp. 129-140, (2003)
  • [8] Huang F., Huang C., Chen C., Et al., Study and application of UPFC stabilizer, Electric Power Automation Equipment, 29, 3, pp. 101-105, (2009)
  • [9] Ren B., Du W., Wang H., Et al., Damping chan-nel selection based on damping torque analysis andcoordina-ted design of auxiliary stabilizer for UPFC, Electric Power Automation Equipment, 37, 5, pp. 61-67, (2017)
  • [10] Pandeyr K., Singh N.K., Small signal model for analysis and design of FACTS controllers, IEEE Power & Energy Society General Meeting 2009(PES'09), pp. 1-8, (2009)
12