An energy management controller for wind-solar-storage micro-grid system

Abstract

The invention discloses an energy management controller used for a wind and light storage micro-grid system. The energy management controller comprises an energy management monitoring system, a generating and energy storing system, a factory load, distribution and protection system, a data collection system and a remote dispatching and monitoring system, an energy management system, a remote client and a power grid dispatching center can obtain real-time work data and system power distribution parameters of wind and light storage equipment in the micro-grid system in time, so that grid connection output power of the whole micro-grid system is consumed by factory loads, layering dispatching is received by the energy management system and a power grid, electricity utilization cost of a factory is reduced, and meanwhile stable grid connection operation for a long time of the wind and light storage micro-grid system is achieved.

Description

technical field [0001] The invention belongs to the technical field of a distributed power generation microgrid system in a power system, and relates to an energy management controller used in a wind-solar-storage microgrid system. Background technique [0002] In the past few decades, the scale of the power grid has continued to expand, and it has gradually developed into a super-large interconnected network system with centralized power generation and long-distance power transmission. However, with the continuous increase of long-distance power transmission, the dependence of the receiving power grid on external power continues to increase, the stability and security of power grid operation tend to decline, and it is difficult to meet diversified power supply needs. On the other hand, concerns about the gradual depletion of global conventional energy sources and environmental pollution have become increasingly prominent. In view of this, environmentally friendly, efficien...

AI Technical Summary

Problems solved by technology

This system adopts a large number of advanced and fast power electronic conversion technologies, a variety of new energy sources and diversified energy storage devices, etc., which has the advantages of efficient energy utilization, improved economic benefits, and improved environmental benefits, but it also brings many advantages. The characteristics of the power system are completely different, such as a wide variety of distributed power generation units, fast response, poor overload capacity, and difficult control; the current flows in two directions, and the original relay protection device must be updated; energy characteristics are different, and economic optimization is complicated; therefore , the stable and optimal operation of the microgrid not only depends on advanced unit-level distributed generation unit control, but also depends on efficient system integration control and energy management technology

Images