Intelligent layer control method of large-scale electrical heat storage unit

Abstract

The invention belongs to the technical field of wind power absorption, and particularly relates to an intelligent layer control method of a large-scale electrical heat storage unit. In an electric-thermal coupling system, the running flexibility of a power system is effectively improved by a large-scale heat energy device, and the improvement of the wind power absorption capability of the system is achieved. The intelligent layer control method comprises the steps of electric heat storage unit layer control strategy, optimization problem building and example analysis. By control of the heat storage unit, local control and remote control strategy of the heat storage unit is achieved, a heat storage load is incorporated into daily dispatching plan at a power grid dispatching side, direct control of a power grid is achieved by an automatic power generation control, and an electrical heat comprehensive dispatching model of the power system containing a large-scale heat storage unit is built; and by actual data of the power grid, the improvement effect of the built model on the wind power absorption capability is simulated and analyzed, the running differences under different control strategies are compared and analyzed, the electric quantity benefit under the model is analyzed, so that effectiveness is verified.

Description

technical field [0001] The invention belongs to the technical field of wind power accommodation, and in particular relates to an intelligent layered control method for a large-scale electric heat storage unit, and specifically relates to a large-scale heat storage device that can effectively improve the flexibility of power system operation in an electric-thermal coupling system In order to realize the improvement of the wind power consumption capacity of the system. Background technique [0002] In recent years, wind power has developed rapidly around the world, and my country has become the country with the largest scale and fastest growing wind power in the world. However, due to the random fluctuation of wind power generation, its grid-connected operation has brought great challenges to the traditional power system. In order to ensure the safe and reliable operation of the entire system, wind curtailment occurs from time to time, and the problem of wind power accommodat...

AI Technical Summary

Problems solved by technology

Although the research has provided solutions to improve the capacity of wind power acceptance, the most critical problem of various energy storage technologies is that the capacity cannot accommodate wind power on a large scale. Only the provincial power grid has abandoned wind power amounting to billions, or even Tens of billions, several kilowatts, several megawatts of energy storage is difficult to effectively improve the capacity of wind power acceptance

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