Wind power grid connection system stability characteristic based wind power transient response scheme optimization method

The invention provides a wind power grid connection system stability characteristic based wind power transient response scheme optimization method. The wind power grid connection system stability characteristic based wind power transient response scheme optimization method comprises the following steps of determining influence factors which may lead to the transient instability of a wind power grid connection system; judging whether the voltage of a wind power station outlet bus is out of limit or not during the fault and adjusting a reactive power injection control strategy of a wind power generation set during the fault if yes; judging whether the frequency of the wind power grid connection system is out of limit or not and adjusting an active power recovery control strategy of the wind power generation set after the fault removal if yes; judging whether the power angle of the wind power grid connection system is out of limit or not and adjusting an active power injection control strategy of the wind power generation set during the fault if yes; judging whether the wind power grid connection system meets the requirements of the transient stability or not and performing the reactive power compensation and the wind power grid connection capacity constraints if not. According to the wind power grid connection system stability characteristic based wind power transient response scheme optimization method, the transient stability of the wind power grid connection system is improved through the optimization of the control strategies of the wind power generation set and accordingly the risk of the transient instability of the wind power grid connection system is reduced.