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Characteristic Tests on the Gas Turbine Generator System for Determination and Verification of Model Parameters in a Combined Cycle Power Plant  

Kim, Jong Goo (Korea Western Power Co., Ltd)
Yoo, Hoseon (KRIMFI)
Publication Information
Plant Journal / v.17, no.4, 2021 , pp. 35-40 More about this Journal
Abstract
In this study, a technical characteristic test was conducted on the gas turbine generator system of Seoincheon Combined cycle no.6 to derive and verify the model constants. As a result of the generator maximum/minimum reactive power limit test, the maximum reactive power limit is 80 MVar and the minimum is -30 MVar. The generator uses the GENROU model, the field time constant (T'do) is 4.077 s, and the inertial constant (H) is 5.461 P.U. Excitation system used ESST4B model to derive and verify model constants by simulating no-load 2% AVR step test, PSS modeling derived from PSS2A model constants, and simulated and compared measurement data measured when PSS off/on Did. The GGOV1 model was used for the governor-turbine, and the numerical stability of the determined governor-turbine model constant was verified by simulating a 10% governor step test through the PSS/E simulation program
Keywords
Characteristic test; Generator; Excitation system; Power System Stabilizer; Governor-turbine;
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