New energy power grid scheduling method combined with energy storage power station

Abstract

The invention provides a new energy power grid scheduling method combined with an energy storage power station. The method comprises the steps of constructing a day-ahead scheduling model, obtaining aday-ahead scheduling result through the day-ahead scheduling model, and enabling the day-ahead scheduling result to comprise the charging and discharging capacity of a water pumping type storage power station, constructing an intra-day optimal scheduling model, acquiring an intra-day scheduling result through the intra-day optimal scheduling model, and enabling the intra-day scheduling result tocomprise the charging and discharging capacity of the electrochemical energy storage power station, and according to the day-ahead scheduling result and the intra-day scheduling result, scheduling thecharging and discharging capacity of the unit equipment and the energy storage power station in the new energy power grid. Based on scheduling of different time scales, the high-capacity and high-efficiency energy storage effect of the water pumping type energy storage power station is combined with the rapid adjustment effect of the electrochemical type energy storage power station, the scheduling accuracy and real-time performance are enhanced, and the wind power absorption capacity of a new energy power grid is improved.

Description

technical field [0001] The invention belongs to the field of grid dispatching, and in particular relates to a new energy grid dispatching method combined with an energy storage power station. Background technique [0002] With the gradual development of new energy technologies, the installed capacity of new energy represented by wind power and photovoltaics in my country has increased. The rapid development of new energy and large-scale access have brought serious problems of abandoning wind and light. Improving the ability to absorb new energy is a development trend. Most of the power supply system is an active distribution network, which has the characteristics of active control, active service, and active management. It can realize unified dispatching and control of distributed energy, energy storage devices, and response loads in the power grid through dispatching instructions. [0003] However, due to the randomness and volatility of new energy output, coupled with the ...

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Problems solved by technology

[0003] However, due to the randomness and volatility of new energy output, coupled with the influence of different characteristics of energy storage power stations, it often interferes with the formulation of grid dispatching plans, reducing the accuracy of grid dispatching

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