CAJ | 학술논문

从摆方程出发,借助能量法和相平面分析方法对电力系统的稳定性进行讨论。结果表明,当机械功率比较小的时候,系统的稳定性不受影响;当机械功率比较大时系统的不稳定性开始凸现,机械功率越大系统越不稳定。当机械功率等于电磁功率时,系统处于临界状态。系统的临界状态与系统参数有关,只需适当调节这些参数就可以保证系统是稳定的。
종파방정출발,차조능량법화상평면분석방법대전력계통적은정성진행토론。결과표명,당궤계공솔비교소적시후,계통적은정성불수영향;당궤계공솔비교대시계통적불은정성개시철현,궤계공솔월대계통월불은정。당궤계공솔등우전자공솔시,계통처우림계상태。계통적림계상태여계통삼수유관,지수괄당조절저사삼수취가이보증계통시은정적。
The paper discussed the stability of power systems by using the energy method and phase plane analysis method from the pendulum equation. The results show that when the mechanical power is relatively small, the stability of the system is not affected ; when mechanical power is large, the instability of the system has become distinct, and the larger mechanical power is, the more instability. When mechanical power is equal to the electromagnetic power, the system is in critical condition. The critical condition of the systems is related to system parameters, just adjusting appropriately these parameters so as to ensure stabilities of the system.