Multi-energy flow system multi-target optimal power flow model and solving method thereof

Abstract

The invention discloses a multi-energy flow system multi-target optimal power flow model and a solving method thereof, and relates to the field of multi-energy flow system operation control. The method comprises the following steps of: establishing the multi-energy flow system multi-target optimal power flow model through considering constraint conditions such as a virtual factor, a scheduling factor and input energy of an energy concentrator, active power output and node voltage of a power network unit, and a compressor compression ratio and node pressure intensity of a natural gas network by minimizing a power network input energy cost, a natural gas network input energy cost and a thermal network input energy cost; and solving a multi-target optimal power flow model on the basis of NSGA-II and maximum satisfiability method mixed algorithm, so as to obtain a Pareto solution set and an optimal compromise solution of a multi-energy flow system multi-target optimal power flow. The multi-energy flow system multi-target optimal power flow model and the solving method are suitable for the energy interconnection development trend, and can decrease the operation cost while the energy utilization efficiency of multi-energy flow systems is improved.

Description

technical field [0001] The invention relates to a multi-objective optimal power flow model of a multi-energy flow system and a solution method thereof, belonging to the field of operation control of a multi-energy flow system. Background technique [0002] With the increasingly prominent energy and environmental issues, the Energy Internet is a frontier and hot spot in the field of energy research. Building a multi-energy flow system can help improve the energy efficiency of a multi-energy flow system and reduce energy input costs. The continuous development of multi-energy flow coupling has made it difficult to directly apply the traditional single-energy flow system method. In order to ensure the efficient operation of multi-energy flow systems, it is urgent to develop multi-energy flow-oriented energy management. Based on this, a multi-objective optimal power flow model and its solution method for multi-energy flow systems are proposed, which has certain significance for ...

AI Technical Summary

Problems solved by technology

Although these have achieved certain results in the modeling and solving of multi-energy flow networks, there has not been research on the establishment of multi-objective optimal power flow models for multi-energy flow systems and their solution methods.

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