Intelligent control system for microgrid energy

Abstract

The invention relates to a miniature power supplying system containing a plurality of distributed power supplies, and discloses an intelligent energy control system capable of controlling a microgrid by using forecast information. The intelligent control system for microgrid energy comprises a microgrid system and a control system, wherein the microgrid system comprises a power supply unit, an energy storage unit and a load unit, and the control system comprises an information collecting system and a central processing unit. The central processing unit comprises a load forecasting module, a microgrid online status estimating module, an energy forecasting module of an intermittent power supply energy forecasting and storing unit, a microgrid system analyzing module and a microgrid multiobjective optimization operation and comprehensive coordination control module. The intelligent control system for microgrid energy can control the microgrid according to the forecast information and accomplish the intelligent operation of the microgrid.

Description

technical field [0001] The invention relates to a power system, in particular to a micro power supply and consumption system including multiple distributed power sources. Background technique [0002] After the North American blackout in August 2003, countries such as Europe and the United States deeply realized the importance of power system reliability. A micro-grid technology that combines generators, loads, energy storage devices, and control devices to form a single controllable unit that simultaneously supplies electricity and heat to users has emerged as the times require. Most of the power sources in the microgrid are micro power sources, that is, small units (generally less than 100kW) with power electronic interfaces, including micro gas turbines, fuel cells, solar power generation devices, wind power generators, biomass power generation devices, supercapacitors, and flywheels. These power generation devices are connected to each other through power electronic dev...

AI Technical Summary

Problems solved by technology

[0011] Both of the above two patents focus on the energy management system of the microgrid. Although some control methods are proposed, they both ignore an important issue - the energy consumption of the load, the energy level and energy storage capacity of the energy storage unit, and the system supply. The prediction of the energy level (various types of power generation units) does not take into account the special role of the controllability of the energy storage unit in improving the reliability and power quality of the microgrid.

For a complex distributed system like a microgrid, its control is difficult without prediction

At the same time, these two patents do not explicitly mention the automatic warning and emergency control of dangerous situations

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