青海西部电网区域安全稳定控制系统由安装在7个厂站的稳定控制装置组成。该电网与青海主网联络线或主力机组发生故障时,采取精确切机、精确切负荷和根据各厂站电压情况综合判断投切电容器和电抗器等措施,防止大面积停电,保证其安全稳定运行。文中介绍了青海西部电网区域安全稳定控制系统的配置、特点以及有效的控制策略。 Qinghai Western Power Grid regional security and stability control system installed by the stability of the seven plant control devices. The power grid and Qinghai main network contact line or the main unit failure, take precise cutting machine, cut the exact load and according to the station voltage synthesis judge capacitors and reactors and other measures to prevent large-scale power outage to ensure its security and stability run. This paper introduces the configuration, characteristics and effective control strategy of the regional security and stability control system of Qinghai Western Power Grid.