Optical storage and charging integrated hierarchical coordination control system and control strategy thereof

Abstract

The invention provides an optical storage and charging integrated hierarchical coordination control system and a control strategy thereof, relates to the technical field of optical storage and charging integrated control, and solves the problem that the existing optical storage and charging integrated research cannot efficiently exert the coordination control effects of peak clipping and valley filling of optical storage and charging and promotion of source-load interaction. A battery energy management system layer, a direct-current charging and discharging pile layer, a current conversion system layer and a battery energy management system layer are constructed to serve as a master control center, and first data information of the layers, second data information of the direct-current charging and discharging pile layer and third data information of the current conversion system layer are transmitted to a cloud platform server through an intermediate communication device; a control instruction of a cloud platform server is received, and then the information is send, thereby realizing cooperative control of battery energy storage, a DC charging and discharging pile and a photovoltaic array and stable operation of photovoltaic storage and charging integration, promoting friendly interaction of source loads, realizing an idea of peak clipping and valley filling, and utilizing thevalue of photovoltaic storage and charging integration to the greatest extent.

Description

technical field [0001] The present invention relates to the technical field of integrated control of solar storage and charging, and more specifically, to a layered coordinated control system for integrated solar storage and charging and a control strategy thereof. Background technique [0002] In recent years, with the development of smart parks and electric vehicles, large-scale electric vehicles, as a special new type of load, have had some new impacts on traditional power grids. The charging of electric vehicles has certain randomness in time and space. This disorderly charging pattern puts a lot of pressure on the grid during peak electricity consumption periods and increases the risk of grid instability. As clean energy, photovoltaic power generation and distributed energy storage systems can be distributed and applied in various communities in the city, which can reduce the pressure on the power grid and the loss of power transmission. Combining with distributed elect...

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Problems solved by technology

[0005] In order to solve the problem that the existing research on the integration of solar storage and charging cannot efficiently play the role of coordination control of solar storage charging, peak cutting and valley filling and promotion of source-charge interaction, the present invention A layered control system and control strategy for the integration of solar storage and charging is proposed to promote the friendly interaction of "grid-user load", realize the idea of ​​peak-shaving and filling valleys, and maximize the value of solar-storage-charging integration

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