Wind farm power generation control method and wind farm energy control platform

Abstract

The present invention discloses a wind farm generated energy control method and a wind farm energy control platform. The method includes the following steps that: the wind farm energy control platform detects whether a wind driven generator set is in an active power scheduling state; if the wind driven generator set is in the active power scheduling state, a scheduling instruction carrying a current scheduling limit value is received, and the total active power of a wind farm is calculated, the total active power is compared with the current scheduling limit value; if the current scheduling limit value is larger than the total active power of the wind farm, the difference value of the total active power and the current scheduling limit value is calculated, and whether the difference value is in a preset allowable error range is judged; if the difference value is not in the preset allowable error range, a power priority control instruction carrying a maximum output state is sent to the wind driven generator set; and if the difference value is in the preset allowable error range, a rotation speed priority control instruction carrying the maximum output state is sent to the wind driven generator set, wherein the maximum output state sent to the wind driven generator set includes maximum output power corresponding to the wind driven generator set. With the wind farm generated energy control method of the invention adopted, the problem of incapability of balancing the response speed and maximum output of the wind driven generator set during low wind speed can be solved.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a method for controlling the power generation of a wind farm and an energy control platform for the wind farm. Background technique [0002] In recent years, wind power technology has developed rapidly. After large-scale wind turbines are connected to the grid for power generation, due to the fluctuation and intermittent nature of wind energy, the fluctuation of active power in wind farms poses a huge challenge to the balance of supply and demand of the power grid and system security. Region, which exceeds the maximum capacity of the region. The dispatching department dispatches the online consumption of each wind farm in real time according to the allowed online consumption of the power grid. After receiving the dispatching instruction, the energy control platform of the wind farm refers to the operating status of the wind power generation unit, and assigns the max...

AI Technical Summary

Problems solved by technology

In the "power priority" mode, the wind turbine can reach the maximum output under the maximum speed, but due to the sluggish speed response, the wind turbine power response is slow, the dynamic follow-up is poor, and the control accuracy is low; in the "speed priority" mode , the wind turbine has fast response and high control precision, but the wind turbine cannot reach the maximum output during the time period when the speed is controlled but has not reached the specified maximum output

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