Distributed power stratified coordination control system of microgrid and method

Abstract

The invention provides a distributed power stratified coordination control system of a microgrid and a method of the distributed power stratified coordination control system of the microgrid. The system comprises a distributed control layer, a local coordination layer and a remote management layer; a controller of the distributed control layer collects information, uploads the information to the local coordination controller of the local coordination layer, and then, uploads the information to an acquisition controller of the remote management layer by the local coordination controller; and a workstation of the remote management layer gives a plan running command to the local controller, and then, the local controller performs coordination control and gives the plan running command to the controller. The system scientifically manages distributed power, stored energy and load in the microgrid, plans power generation dispatching, achieves rational power supply, satisfies load power supply requirement of the microgrid, effectively solves operation reliability problem of the power distribution network, satisfies trait power requirement of the specific user, improves comprehensive utilization efficiency of all kinds of energy, and has great social and economic benefits.

Description

technical field [0001] The invention relates to a micro-grid operation control technology, in particular to a micro-grid distributed power hierarchical coordination control system and method. Background technique [0002] Micro-grid (Micro-Grid), also translated as micro-grid, is a new type of network structure, which is a system unit composed of a group of micro-power sources, loads, energy storage systems and control devices. Microgrid is an autonomous system capable of self-control, protection and management, which can be connected to the external grid or run in isolation. Microgrid is a concept relative to the traditional large power grid. It refers to a network composed of multiple distributed power sources and their related loads according to a certain topology, and is connected to the conventional power grid through static switches. The development and extension of microgrids can fully promote the large-scale access of distributed power sources and renewable energy s...

AI Technical Summary

Problems solved by technology

Some micro-grid operation control systems have been applied in demonstration projects, but they basically followed the original distribution network management system and failed to systematically combine the power generation characteristics of different distributed power sources, resulting in the failure of the advantages of the micro-grid. Cannot be effectively utilized and optimized, which restricts the promotion and application of distributed power to a certain extent

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