Distributed generation system

Abstract

The invention relates to a distributed generation system. The system is provided with an intelligent monitoring system; the intelligent monitoring system is capable of predicting the generated output of a photovoltaic module and a wind power module of a distributed generation and predicting the change condition of load, and upon the real-time detected energy storage condition of a storage battery module, the running condition of a diesel generator and the real-time acquired running condition of a power distribution network, the optimum control strategy is implemented.

Description

Technical field [0001] The invention relates to a distributed power supply system. Background technique [0002] With the development of the economy, the demand for electricity has grown rapidly, and the scale of the power grid has continued to expand. The disadvantages of the ultra-large-scale power system have become increasingly prominent: poor operational stability, difficulty in adapting to users' requirements for power safety and reliability, and diversified power supply needs. [0003] Distributed generation (distributed generation, DG) is a new type of electric energy, including photovoltaic power generation system, wind power generation system, micro gas turbine power generation system, etc. Distributed power generation technology has a series of advantages such as environmental protection and economy, and can well meet people's requirements for power safety, stability and economic environmental protection. It has attracted widespread attention and has been graduall...

AI Technical Summary

Problems solved by technology

[0004] However, fundamentally speaking, these small-scale renewable energy power generation methods have shortcomings such as small capacity, low product efficiency, poor power supply reliability, and high power generation costs, which greatly hinder the large-scale application and further development of this type of power generation system.

[0005] In addition, the access of DG to the distribution network also brings new problems and challenges to the protection and control of the distribution network

Photovoltaic and wind power energy is an intermittent energy source, and it is inevitable that the power generation will fluctuate with the intensity of sunlight and the intensity of wind during grid-connected operation.

Therefore, the access of distributed power generation with a high penetration rate to the distribution network will inevitably bring many negative effects to the operation, scheduling and management of the distribution network.

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