Wind power plant reactive power optimization configuration method based on double-fed induction fan reactive power generating capacity

Abstract

The invention discloses a wind power plant reactive power optimization configuration method based on double-fed induction fan reactive power generating capacity. The wind power plant reactive power optimization configuration method is characterized by comprising the steps such as quantitative calculation, a single wind power plant reactive power optimization configuration model and wind power plant reactive power optimization configuration, based on the double-fed induction fan reactive power generating capacity, obtaining a minimum reactive power output optimization result, meeting an objective function, of each unit, configuring a wind electric motor set power factor and an access point capacitive reactive compensation equipment configuration reference value, taking the actual wind speed of a region to conduct production simulation and detect feasibility of a configuration scheme, and obtaining an inductive reactive power configuration capacity reference value. The wind power plant reactive power optimization configuration method has the advantages of being simple in calculation, reasonable in result, easy to achieve, high in application value and the like. Large-scale reconstruction is not required to be carried out on an existing wind power plant, and on the premise that an existing fan control strategy is not changed, optimization of reactive power configuration of a double-fed induction fan wind power plant is achieved.

Description

technical field [0001] The invention relates to the technical field of wind power generation in an electric power system, and relates to a reactive power optimization configuration method of a wind farm based on the reactive power generating capacity of a doubly-fed induction fan. Background technique [0002] In recent years, wind power, as the most potential renewable energy power generation technology in the world, has developed rapidly in my country, and the capacity of wind turbines has gradually increased. At the same time, the impact of grid-connected wind farms on the power grid has become more and more obvious. The reactive voltage problem it brings also directly affects the stable operation of the access power system. [0003] Due to technical limitations, my country first used constant speed and constant frequency ordinary asynchronous motor wind turbines. Its biggest disadvantage is that while generating active power, it needs to absorb reactive power from the gri...

AI Technical Summary

Problems solved by technology

[0004] Due to various reasons, the existing domestic variable speed and constant frequency wind farms generally adopt the constant power factor of all wind turbines, that is, Control method, although this control method is simple, it does not solve the problem of low reactive power voltage level in wind farms, so it is necessary to install large-capacity capacitor banks or fast reactive power compensation devices at the centralized bus outlet of wind farms, which greatly increases the construction cost of wind farms. cost

Images