交直流电力系统静态稳定性研究

STUDIES ON STEADY-STATE STABILITY OF AC/DC POWER SYSTEMS

本文以小振荡法分析交直流电力系统的静态稳定性。着重研究直流输电系统的控制方式、调节参数以及换流站无功补偿装置性能对静态稳定性的影响,并用灵敏度分析方法选择最佳调节参数。文中还对换流站引入TCR/TSC静止无功补偿装置进行了探讨,分析结果表明它对提高系统静态稳定性具有良好的效果。

This paper analyzes the steady-s'ate stability of AC/DC power systems by the method of small oscillation. It gives emphasis to the study of the effect of s'eady-state stability due to the control modes and its modula ion parameters of HVDC system and the performances of reactive power compensation of convertor stations. Moreover, the optimal modulation parameters are chosen by the sensiti- vity analysis method. In the paper, TCR/TSC static var compensator used in a convertor station is discussed, and the results from an illustrative example show good effects for enhancing the steady-state stability.