Automatic gain scheduling method for wind power plants distributed as priority level according to blower involvement

Abstract

The invention relates to an automatic gain scheduling method for wind power plants distributed as the priority level according to blower involvement and belongs to the technical field of energy management system of power systems. The automatic gain scheduling method includes classifying blowers into common blowers and marker blowers according to power generation capacity of the blowers and scheduling the same in a gain manner, and giving the priority to involving all the marker blowers to generate power; classifying the marker blowers from low to high by a first level, a second level and a third level; giving the priority to involving all the blowers at high level to generate power; performing no power ration control at the third level which is the highest level; receiving gained control targets of dispatching, wherein when the gained control targets are larger than or equal to loading capacity, the dispatching command is that all the blowers generate power freely; when the gained control targets are smaller than the loading capacity, power ration control on blower involvement is performed; when on-grid gain is smaller than the gained control targets *95%, guaranteeing complete involvement of the marker blowers at the first level, the second level and the third level according to the sequence, and then adjusting the common blowers. The automatic gain scheduling method is simple and easy to realize, power generation capacity of the wind power plants can be increased, and fault rate of the blowers can be decreased.

Description

technical field [0001] The invention belongs to the technical field of electric power system energy management system (EMS), and in particular relates to a method for automatically dispatching active power of a wind farm considering the distribution of fan output according to priority levels. Background technique [0002] In recent years, many large-scale wind power bases across the country have been built and put into operation, which has changed the original power supply structure. The impact of wind power on the power grid has gradually increased, from the reactive power and voltage of the local power grid to the peak regulation and frequency regulation of the large power grid. influences. The "Technical Regulations for Connecting Wind Farms to the Power Grid" issued by the State Grid Corporation of China pointed out: "Wind farms should have the ability to regulate active power and be able to control their active power output according to the instructions of the grid disp...

AI Technical Summary

Problems solved by technology

The traditional wind farm active power control methods such as proportional and margin-based methods no longer meet these new requirements, and a new active power control method for wind farms needs to be studied to meet these requirements.