发电机转动惯量的计算对PSS参数整定的影响

Influence of Generator's Moment of Inertia Calculation on Parameter Tuning of PSS

阐述发电机转子转动惯量和发电机转子惯性时间常数的基本概念后,分别介绍了汽轮机专业和电气专业计算发电机转子转动惯量和转子时间常数的公式,并根据不同的计算数据进行现场试验,分析不同的计算转动惯量对电力系统稳定器(power system stabilizer,PSS)参数整定计算的影响及对发电机振荡的抑制效果,提出进一步探讨发电机转动惯量计算公式的设想。

After setting forth concepts of generator＇s moment of inertia and inertia time constant,the paper respectively introduces formulae for their calculation in steam turbine profession and electric profession,and field tests are carried out according to diverse calculation data.It analyzes influence of various moment of inertia on calculation of parameter tuning of power system stabilizer（PSS） as well as the effect of oscillation suppression.The paper brings forward a tentative plan for further discussing the calculation formulae of generator＇s moment of inertia.