Feedback control based stability of high voltage direct current system
基于直流输电系统稳定性的反馈控制

In power system,the power of the direct power transmission line can be adjusted quickly by increasing the speed of the converter so that the stability of the system can be improved.The stability of high voltage direct current(HVDC) system is studied by the method of dynamic system in this paper.The mathematical model of the direct power transmission is analysed under the autonomous and non-autonomous cases.The feedback control is then designed,the trigger lag angle and trigger leading angle of the direct current conveter can thus be adjusted effectively under the control,and the direct current of converter is thus exponentially stabilized.