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Title: System Equivalent for Real Time Digital Simulator
Authors: Lin, Xi
Supervisor: Gole, Aniruddha M. (Electrical and Computer Engineering)
Examining Committee: Dommel, Hermann (University of British Columbia) Kundur, Prabha (Electrical and Computer Engineering) Annakkage, Udaya (Electrical and Computer Engineering) Balakrishnan, Subramaniam (Mechanical and Manufacturing Engineering)
Graduation Date: February 2011
Keywords: Power System Simulation
Real Time Digital Simulator
Dynamic Equivalent
Frequency Dependent Network Equivalent
Electromagnetic Transient
Transient Stability
Issue Date: 19-Jan-2011
Abstract: The purpose of this research is to develop a method of making system equivalents for the Real Time Digital Simulator (RTDS), which should enhance its capability of simulating large power systems. The proposed equivalent combines a Frequency Dependent Network Equivalent (FDNE) for the high frequency electromagnetic transients and a Transient Stability Analysis (TSA) type simulation block for the electromechanical transients. The frequency dependent characteristic for FDNE is obtained by curve-fitting frequency domain admittance characteristics using the Vector Fitting method. An approach for approximating the frequency dependent characteristic of large power networks from readily available typical power-flow data is also introduced. A new scheme of incorporating TSA solution in RTDS is proposed. This report shows how the TSA algorithm can be adapted to a real time platform. The validity of this method is confirmed with examples, including the study of a multi in-feed HVDC system based network.
Appears in Collection(s):FGS - Electronic Theses & Dissertations (Public)

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