风电比例对风火打捆系统暂态稳定性影响

Influence of proportion of wind power to wind- thermal bundled system transient stability

分析风火打捆系统中的风电机组和火电机组的暂态稳定性机理,并根据同步电机和双馈电机的数学模型建立仿真模型,通过仿真分析研究不同风火比例对系统暂态稳定性的影响,得出与理论分析相同的结论:在风火打捆外送系统中,系统负荷和电厂出力保持不变的情况下,故障后系统首摆不失稳,风电比例越大系统稳定性越好。

Analysis of transient stability mechanism wind - thermal - bundling system wind turbine and thermal power, and the establishment of a simulation model based on a mathematical model of syn- chronous motors and double -fed motor. Through simulation effects of different ratio of wind -thermal transient stability, simulation results and theoretical analysis obtain the same conclusion： in the delivery system of bundled wind - thermal, the system load and power plant output remaining unchanged, put the first post - fault system instability, the larger proportion of wind power system stability is better.