A fair dispatch method for power system wind farms based on minimum curtailment control

Abstract

The invention relates to an electric power system wind power plant fair-share scheduling method based on minimum wind curtailment control, and belongs to the technical field of operation and controlling for new energy to be access into a power system. The method comprises the steps that according to the acceptable capacity of a current power grid to wind power generation, when the power grid can continuously accept wind power generation, recovery control is started, and the active power of wind power plants which are low in load rate and have wind curtailment is preferentially improved; when wind curtailment needs to be conducted on the power grid, wind curtailment is started, and the active power of the wind power plants which are high in load rate and have the wind curtailment condition is preferentially reduced; when the adjusting demand of power grid wind generation is zero, adjusting control is started, the active power of the wind power plants which are high in load rate is lowered, the active power of the wind power plants with the low load rate is improved, and the force output load rate deviation of all controlled wind power plants is made to be close to zero. The electric power system wind power plant fair-share scheduling method can be integrated in a wind power generation active control main station system operating in a scheduling center, it is guaranteed that a power grid is provided with sufficient backspin safe space, and fair-share scheduling between all the wind power plants is considered.

Description

technical field [0001] The invention relates to a fair scheduling method for wind farms in a power system based on minimum wind curtailment control, and belongs to the technical field of operation and control of new energy access to power systems. Background technique [0002] The strong randomness of wind resources, difficulty in forecasting, and anti-peak regulation make the active power dispatching and control of the power grid more difficult. How to maximize the utilization of wind power resources and absorb as much wind power as possible on the premise of ensuring the safety of the power grid has become one of the common challenges faced by the power grids where all wind power bases are located. At present, the industry has conducted a lot of research on the active power dispatching control after the wind power generation is connected, and obtained a series of research and application results. The actual field operation experience shows that the introduction of minute-...

AI Technical Summary

Problems solved by technology

This method relies on the experience of the operator, and it is difficult to guarantee the fairness of dispatching. At the same time, when the security of the power grid is not limited and there is room for wind power acceptance, the manual control method cannot restore the active power of the wind farm in time, resulting in unnecessary wind curtailment.

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