Wind power plant active power control method based on virtual load rates of several kinds of transaction plans

Abstract

The invention, which belongs to the technical field of operation and control of a new-energy power access power system, provides a wind power plant active power control method based on virtual load rates of several kinds of transaction plans. According to the method, when each active power control instruction period arrives, current active power generation values, installed capacity values, and various participated transaction plan values of all wind power plants are collected in real time from an active power dispatching system of a grid dispatching center; according to a priority sequence ofthe transaction, the transaction plan values are introduced into load rate calculation to form virtual load rates. When the transaction plan in which the wind power plant participates in is not performed completely, the virtual load rate is a minus; and the active power output of the wind power plant participating in the transaction plan is ensured in priority according to the load rate balancingcontrol strategy, so that the execution of the transaction plan is guaranteed.

Description

technical field [0001] The invention relates to a method for controlling the active power of a wind farm based on a virtual load rate of various trading plans, and belongs to the technical field of operation and control of new energy access power systems. Background technique [0002] Wind energy is a kind of abundant and renewable clean energy. Reasonable and effective use of wind energy is one of the effective ways to adjust the energy structure and solve the energy crisis. China is rich in wind energy resources, and the huge reserves of wind energy that can be developed and utilized provide a good resource base for the rapid development of the wind power industry. In recent years, China's wind power installed capacity has continued to increase, and the scale of wind power grid connection has gradually expanded. Due to the unbalanced distribution of wind energy resources, China's wind power is mainly concentrated in the "Three Norths" (Northeast, North China, and Northwes...

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Problems solved by technology

[0004] Due to the limited total amount of wind power generation that the grid can accept at the same time, when there are many wind farms connected to the grid in the power system, there will be a situation of "wind abandonment", that is, the grid active power dispatching control system needs to limit the active power of each wind farm Contribute

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