The study of voltage stability comprehensive controls for large city receiving-end grid

With the feed-in of electricity proportion rising, Shanghai grid become a typical large city Receiving-end grid. Voltage stability make great influence to power grid operating safely and stably. Firstly, brief introduction of Shanghai power grid current situation. Secondly, analyze summer and winter voltage stability of Shanghai power grid in different operation modes, including normal operation and contingencies (N-1, N-2). Finally, specific study kinds of voltage stability control measures respectively, to ensure a stable and safe running of Shanghai grid, provide an effective and feasible solution for the power grid operation and management.