The Influence of Multiple Low Frequency Oscillations on Power Transmission Capability and Their Solutions

There might be dynamic stability problems with multiple low frequency oscillation modes in power system with long distance and large capacity power stations, especially with clean energy stations, which may cause ” seesaw effect” between every power base, and restrict the power transmission capability. Considering this problem, an appropriate integrated solution is put forward according to the factors and measures for each mode. It is proved effective from the view of oscillation suppression and power transmission capability increasing by time domain simulation and frequency domain simulation.