An event-based smart microgrid operation optimization method

Abstract

The invention discloses an operation optimization method for an intelligent microgrid based on an event, and the method comprises the steps: analyzing factors which cause the failure of an original operation optimization scheme of the intelligent microgrid, carrying out the classification of the factors, and forming an event set; dividing an optimization period into a plurality of time segments at set time intervals, combining with a constructed event, carrying out the dividing of a rolling window, and enabling the optimization period to be divided into a plurality of rolling windows again; taking the minimum operation cost of the intelligent microgrid system as the target, and building an intelligent microgrid rolling optimization model based on the rolling windows and the event; and solving the model employing an operation optimization method based on a rolling optimization frame. The method can effectively solve a problem of operation cost increase caused by the prediction inaccuracy caused by the uncertainty of the photovoltaic output power and power utilization load and the changes of electricity price.

Description

technical field [0001] The invention relates to an event-based smart microgrid operation optimization method. Background technique [0002] Driven by the severe situation of energy crisis, environmental degradation and market demand, a smart microgrid composed of renewable power generation units, energy storage units, control units and loads has emerged as the times require. As an effective technical means to exert the efficiency of distributed power generation, smart microgrid has become an important technology for the construction of smart grid in the future. Conducting research on smart microgrids not only has significant economic value, but also has positive social impacts. [0003] Economy is the key to smart microgrid attracting users and promoting it in the power system. Although a lot of experience can be learned from the large power grid, the types of power generation units, load characteristics, and power market policies adopted in smart microgrids are quite diff...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the operation optimization problem of smart microgrid, with the goal of optimizing the economy, a lot of research has been carried out at home and abroad, but the existing research basically regards it as a deterministic problem. When the photovoltaic output power, electricity load or electricity price changes Finally, the economic optimality of the system cannot be guaranteed. Even if some studies consider uncertainties such as photovoltaic power generation, electricity load or electricity price, the solution method is relatively complicated.

Images