Method for energy optimization of distributed power generation and energy supply system

Abstract

The invention provides a method for energy optimization of a distributed power generation and energy supply system, belonging to the technical field of electric power energy conservation. The method is mainly applied to evaluation of energy-saving and emission-reduction benefits of the distributed power generation and energy supply system when the distributed power generation and energy supply system is connected to an electric network. The method comprises the following steps of: firstly, establishing an energy optimization model of the distributed power generation and energy supply system with four sub-goals of minimizing the total annual planning cost, maximizing the generating capacity of renewable energy sources, minimizing the annual power failure quantity and minimizing the annual capacity shortage; secondly, defining goal optimization functions of the four sub-goals, unifying dimensions of the pollution discharge capacity, the power failure quantity and the capacity shortage of the system through gross penalty, and establishing a single-goal optimization function of the system by adopting a linear weighted sum method, wherein weighing coefficients are determined by adopting a dualistic contrast constant weight method; and finally, performing simulation and solving on the distributed power generation and energy supply system by adopting a heuristic global optimization algorithm to obtain values of the four optimization sub-goals. By the method, the multi-goal energy optimization of the distributed power generation and energy supply system is realized, and the aims of energy saving and emission reduction are achieved.

Description

technical field [0001] The invention belongs to the technical field of electric power conservation, and in particular relates to an energy optimization method for a distributed power generation energy supply system. Background technique [0002] While China Power has achieved great development and provided strong support for the development of my country's economy and other industries, it has also become an important contributor to China's environmental pollution. Therefore, energy saving and emission reduction is of great significance to the power industry. The rise and development of decentralized power supply provides a very promising energy-saving and emission-reduction technology for the power system. The access of the distributed generation energy supply system based on decentralized power sources is an important part of the future smart grid construction, and the realization of energy saving and emission reduction is one of the key goals of the smart grid operation. ...

AI Technical Summary

Problems solved by technology

Some scholars at home and abroad have carried out research on the energy-saving and emission-reduction benefits of introducing distributed power sources in the power distribution side, but there are few types of decentralized power sources to be optimized, and only the electrical load is simulated without corresponding heating or cooling loads. The analysis cannot fully and truly reflect the energy-saving and emission-reduction benefits of decentralized power sources

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