Abstract: Lack of simulation and verification functions in Power System Stabilizer (PSS) parameters calculation leads to uncertainty in PSS setting test. Based on mathematical model of power system, an integrated PSS parameter calculation software is developed. With MATLAB software package, the widely used models of PSS1A and PSS2A/2B are adopted to meet practical engineering need and relevant standards requirement. Using single-frequency and multi-frequency oscillation phase compensation, the software integrates functions of computation and simulation verification for PSS parameters with a well-designed human-machine interaction interface. Meanwhile, the digital simulation of a single machine-infinite bus power system is built in Simulink to simulate and verify the ability of PSS set to suppress low frequency oscillations. A testing case on certain plant in Guangxi indicates the simplicity, accuracy and convenience of developed software.

Key words: power system stabilizer(PSS), low-frequency oscillation, parameter calculation, single-oscillation frequency, multi-oscillation frequency, phase compensation, simulation verification, uncompensated phase frequency characteristic