Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2005.07a
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- Pages.319-322
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- 2005
Application of a Digital PSS to 220MVA Pumped Storage Unit and Its Validation Using Real-Time Digital Simulator
청평양수 발전기의 PSS 파라메터 튜닝 및 시뮬레이터를 이용한 성능검증
- Shin, Jeong-Hoon (Korea Electrici Power Research Institute(KEPRI)) ;
- Kim, Tae-Kyun (Korea Electrici Power Research Institute(KEPRI)) ;
- Choo, Jin-Boo (Korea Electrici Power Research Institute(KEPRI)) ;
- Baek, Young-Sik (Kyungbook National University)
- Published : 2005.07.18
Abstract
This paper describes practical tuning methods and testing of a digital PSS, which uses both frequency and power, with the 220MVA Chungpyung P/P #1 in the KEPCO system to enhance the damping of local modes. In the first step, the objective phase of PSS is computed through a phase leading function to provide compensation between the exciter reference point and the generator air-gap torque before tuning the PSS's time constants. In addition, eigenvalue analysis was used to determine a range of PSS's gain, whichis the more useful for field testing rather than a single gain value. The Real-Time Digital Simulator was used to verify safe operations of the PSS in the presence of disturbances, such as AVR step and three phase fault.
Keywords