Control processing method and apparatus with minimum microgrid operation cost

Abstract

The invention discloses a control processing method and apparatus with minimum microgrid operation cost. The minimum operation cost of the whole controlled microgrid system is realized, and the main embodiment is that the service life of energy storage equipment can be prolonged to the maximum. The method comprises the steps of S1, modeling a microgrid scene in an offline state into a control system which is represented by a stochastic differential equation, and a target function, wherein a controller is arranged on a microcomputer; and the target function refers to the overall operation cost of the microgrid, comprising loss of the energy storage equipment and energy consumption caused by the controller; S2, solving the optimal controller according to the stochastic differential equation, wherein the target function value can be minimized by virtue of the optimal controller; and S3, inputting the optimal controller into the microgrid in a signal way.

Description

technical field [0001] The invention relates to the technical field of micro-grids, in particular to a control processing method and device for minimizing operating costs of a micro-grid. Background technique [0002] Microgrid, also known as microgrid. In general, a microgrid is composed of distributed power sources, distributed energy storage equipment, and supporting equipment such as loads. It is a small power generation and distribution system. The microgrid can be operated in parallel with the external large power grid, or it can be operated independently. In the past ten years, after the concepts of smart grid and energy internet were proposed, the research on microgrid has been attracting great attention. Combined with the concept of Energy Internet currently advocated by the world, under the premise of using clean energy, distributed power generation mainly comes from distributed wind power generators (referred to as fans), distributed photovoltaic generators (ref...

AI Technical Summary

Problems solved by technology

In addition, on the premise of ensuring the reasonable utilization of energy storage equipment, the controller that needs to be designed should minimize the cost as much as possible, because the applied controller itself will cause some losses to the operation of the microgrid

At present, in the relevant research on microgrids, no controller-related inventions and designs developed for such standards and requirements have been found.

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