Study of Resistive SFCL and UPFC for Transient Behavior Enhancement of Multi-Machine Power System

Abstract

Based on a resistive-type superconducting fault current limiter (SFCL) as well as a unified power flow controller (UPFC), this paper researches the combined utilization of them to improve a multi-machine power system’s transient stability. The SFCL is firstly to provide a fault current-limitation. Then, the UPFC is to realize an efficient power flow adjustment and a precise stabilizing control. Related modeling and control are presented, and a four-machine two-area test system including a SFCL and a UPFC is simulated in MATLAB. Different simulation conditions are applied, and it can be concluded that: (i) The SFCL-UPFC enables to more directly and powerfully refrain the fault current surge, mitigate the bus voltage sag and alleviate the inter-area oscillation. (ii) As the increase of fault clearance time, the power system’s demand for the SFCL-UPFC’s stabilizing effect would be very critical. (iii) Compared to the asymmetric fault, the SFCL-UPFC owns a better ability to handle the symmetric fault.

KEYWORDS:

• Combined utilization
• Inter-area oscillation
• Multi-machine power system
• Resistive-type superconducting fault current limiter (SFCL)
• Transient stability
• Unified power flow controller (UPFC)

Acknowledgment

This work was supported by the National Natural Science Foundation of China (51507117).

Additional information

Funding

This work was supported by National Natural Science Foundation of China: [Grant Number 51507117].

Notes on contributors

Zijian Wang

Zijian Wang was born in Xuzhou, China, in 1981. He received the BS degree in electrical engineering from School of Electrical and Electronic Engineering, North China Electric Power University, Baoding, China, in 2003, and the MS and PhD degrees in electrical engineering from School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, China, in 2006 and 2009. He is currently a lecturer with the School of Electrical and Electronic Engineering, North China Electric Power University. His current research interests include fault current limiter and smart grid. Email: [email protected]

Saifei Han

Saifei Han was born in Xingtai China, in 1994. He received the BS degree in electrical engineering from Henan Polytechnic University, Jiaozuo, China, in 2016. He is currently pursuing the master’s degree with North China Electric Power University, Baoding, China. His current research interests include fault current limiter and smart grid. Email: [email protected]

Benzhuang Fan

Benzhuang Fan was born in Shangqiu, China, in 1993. He received the BS degree in electrical engineering from Henan Polytechnic University, Jiaozuo, China, in 2016. He is currently pursuing the master’s degree with North China Electric Power University, Baoding, China. His current research interests include fault current limiter and smart grid. Email: [email protected]

Lei Chen

Lei Chen was born in Jingzhou, Hubei, China in 1982. He received both the BS degree and the PhD degree from the School of Electrical and Electronic Engineering, Huazhong University of Science and Technology (HUST), Hubei in 2004 and in 2010, both in electrical engineering. Currently, he is an associate professor of the School of Electrical Engineering and Automation, Wuhan University. He has authored more than 90 articles. His research interests include smart grid and superconducting power applications. Corresponding Author. Email: [email protected]