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

页码：123 / 129

页数：6

共 16 条

[11] Zhou F., Lu Z., Yu H., Research on multiple time scale hybrid real-time digital simulation and testing of unified power flow controller, Power System Technology, 39, 10, pp. 2848-2855, (2015)
[12] Ye X., Chen C., Li H., Et al., Modeling and simulaiton of uni-fied power flow controller based on modular multilevel converters, 43rd Annual Conference of the IEEE Industrial Electronics Society(IECON 2017), pp. 4967-4971, (2017)
[13] Liu S., Xu Z., Hua W., Et al., Electromechanical transient modeling of modular multilevel converter based multi-terminal HVDC systems, IEEE Transactions on Power Systems, 29, 1, pp. 72-83, (2014)
[14] Liu Y., Control strategy research of UPFC and influen-ce caused by UPFC installed in power system, (2008)
[15] Yang J., Song P., Xu Z., A load flow calculation method for power systems with novel UPFC topology, Power System Technology, 41, 3, pp. 888-894, (2017)
[16] Wang H., Qi W., Qiao L., Et al., A three-bus power injection method of UPFC and its engineering application, Power System Protection and Control, 44, 18, pp. 145-151, (2016)

← 1 2 →