An optimal scheduling method for promoting wind power consumption by utilizing solar thermal power stations

Abstract

The invention discloses an optimal dispatching method for promoting wind power consumption by using a solar thermal power station. First, according to a solar thermal-wind power system structure including a heat storage system and an electric heating device, it is combined with a wind farm for grid-connected operation; The lowest comprehensive cost is the objective function. Through the detailed construction of the mathematical model of the solar-thermal power station, the schedulability of the thermal storage system, the capacity of the electric heating device and the good adjustment characteristics of the solar-thermal unit are used to establish a solar-thermal-wind power optimization model; Finally, on the premise of not increasing the system cost, the model is used to optimize the dispatching of the power system. The technical method provided by the invention can improve the adjustment ability of the system, promote wind power consumption, reduce the occurrence of wind power power climbing events, and improve the safety, stability and operation economy of the power system.

Description

technical field [0001] The invention relates to the field of safety and stability control of electric power systems, in particular to an optimal dispatching method for promoting wind power consumption by using a solar-thermal power station. Background technique [0002] In recent years, in order to implement the national energy development policy of "conservation, cleanness and safety" and promote a high proportion of renewable energy to be connected to the grid, renewable energy represented by wind power has developed rapidly. However, with the increase of wind power penetration rate, the phenomenon of wind curtailment is serious, and the problem of wind power consumption needs to be solved urgently. At the same time, wind power has strong volatility, and it is easy to quickly reduce or increase the power generation in a short period of time. The traditional power supply is insufficient in regulating ability, and wind power power climbing events will occur. Photothermal po...

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