The invention discloses a variable-speed wind
turbine generator
inertia response simulating control method. The method comprises the steps that according to the wind
turbine generator hub
wind speed vw and the wind
turbine generator rotating speed
omega r, the active-
power control reference value P0 of a wind turbine generator is set based on a maximum wind energy power tracking control strategy; extra controls are added through
power grid frequency values on the basis of maximum wind energy power tracking control, according to operation conditions of the wind turbine generator, short-
time constant-power supporting is carried out through table searching or online adjusting to achieve
inertia response
simulation, and meanwhile the wind turbine generator active power
recovery process is achieved according to a certain power curve. The variable-speed wind turbine generator
inertia response simulating control method can overcome the problems that the rotational inertia of a wind turbine generator is not sufficiently utilized, the wind turbine generator is out of a reasonable operation range, inertia control is lack of flexibility,
response time is long, particularly, the rotating speed of the wind turbine generator is too low, and the torque and the rotator current of the wind turbine generator are too large in the prior art. The variable-speed wind turbine generator inertia response simulating control method can effectively reduce the
frequency deviation amplitude and the rate of change after large frequency disturbance accidents, and improves frequency stability of an
electric power system.