NDLI: A novel SSR-damping scheme based on a single-phase SSSC

Content Provider	IEEE Xplore Digital Library
Author	Xiangning Xiao Benfeng Gao Chengyong Zhao
Copyright Year	2010
Description	Author affiliation: Key Laboratory of Power System Protection and Dynamic Security Monitoring And Control under Ministry of Education, North China Electric Power University, Beijing, China, 102206 (Xiangning Xiao; Benfeng Gao; Chengyong Zhao) A three-phase unbalanced system will reduce mechanical and electrical energy interaction and thus, to some extent, inhibit subsynchronous resonance (SSR). Based on this principle, a compensation method using a single-phase static synchronous series compensator (SSSC) is proposed. In this method, only one phase employs an SSSC to replace part of the fixed series capacitor, while the other two phases have fixed series compensation (FSC). By controlling the SSSC, the three-phase reactance at power frequency is balanced, while at sub-synchronous frequencies, the system is unbalanced and thus inhibits SSO. A single-phase SSSC model based on a cascaded H bridge topology is built for time-domain simulations. The damping effect and the minimum degree of compensation required from the SSSC are analyzed by transient simulations. Simulation results show the method can effectively restrain SSO and has little effect on the three-phase voltage unbalance factor. Compared with employing SSSC in all three phases, this method is more economical.
Starting Page	1
Ending Page	5
File Size	405409
Page Count	5
File Format	PDF
ISBN	9781424477821
e-ISBN	9781424477814
DOI	10.1109/PEDES.2010.5712428
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-12-20
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Damping Power capacitors Torque Generators Capacitance Time domain analysis Hybrid series compensator Three-phase unbalance SSR SSSC active damping controller
Content Type	Text
Resource Type	Article

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