【摘要】 针对交直流混联系统发生故障时出现无功不足和电压跌落的问题,需要在交直流混联系统交流侧加装同步调相机,对其提供强无功支撑,保证系统稳定运行。对含同步调相机的交直流混联系统稳定性进行了研究,将在不同故障下的交直流混联系统逆变侧接入同步调相机前后逆变侧母线电压情况进行对比,研究同步调相机接入对母线电压的补偿效果。建立了含同步调相机的交直流混联系统数值仿真模型,仿真结果表明加装同步调相机可提高交直流混联系统的稳定性,提升系统故障恢复能力。更多还原

【Abstract】 According to the problems of insufficient reactive power and voltage drop when the AC/DC hybrid system fails, it is necessary to install synchronous condenser in AC/DC hybrid power system for providing strong reactive power support and maintaining the stability of the system. In this paper, the stability of AC/DC hybrid power system with synchronous condenser is studied. The bus voltage of the inverter side of the AC/DC hybrid system before and after the synchronous condenser is connected under different faults is compared, and the compensation effect of the synchronous condenser on the bus voltage is studied. The numerical simulation model of the AC/DC hybrid power system with synchronous condenser is established. The simulation results show that the installation of synchronous condenser can improve the stability of system and the ability of system failure recovery.更多还原