Optimization operation method for optical diesel store micro-network system with electric vehicle access

Abstract

The invention provides an optimization operation method for an optical diesel store micro-network system with electric vehicle access. The method comprises the steps that a number of optimization objective functions which are used for optimizing to-be-optimized factors which influence the optimization operation of the micro-network system are established; the constraint condition of the micro-network system is determined; according to the constraint condition, a multi-objective optimization problem represented by a number of optimization objective functions is transformed into a single objective optimization problem; and the operation of the micro-network system is optimized. According to the invention, the method focuses on the optimization of the environmental economic operation of the micro-network system; in the states of grid-connection and isolated island operation, an economic optimization operation model which takes the power generation expense, the depreciation expense and the environmental management expense of a distributed power generation unit as objectives and considers the operation constraint condition of the micro-network system is established; a multi-objective constraint optimization problem is formed; optimization solution is carried out on the output power of a distributed power supply in the micro-network system and charge / discharge of an energy storage device; and an optimization result verifies the validity of the proposed model, policy and algorithm.

Description

technical field [0001] The invention relates to the technical field related to the optimization of environmental protection and economical operation of a micro-grid system, in particular to a method for optimizing the operation of an optical diesel storage micro-grid system including access to electric vehicles. Background technique [0002] Distributed power generation has gradually become an important way of electric energy production, and it is an important way to solve problems such as energy crisis and environmental pollution. Connecting Distributed Generator (DG) and Energy Storage System (ESS) to the power grid in the form of Micro-grid (MG) and supporting each other with the power grid can improve the utilization rate of distributed power. It helps to continue to supply power to important loads in the event of a grid disaster, and avoids the impact of intermittent power on power quality. It is the most effective way to maximize the performance of distributed power. ...

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Problems solved by technology

[0005] The present invention aims at the existing photovoltaic and diesel storage micro-grid system with access to electric vehicles. In the isolated island and grid-connected operation modes, the micro-grid with photovoltaic, wind power, and storage access is economically optimized, and there are few better optimized operations. To solve the problem, provide an optimal operation method for the optical diesel storage micro-grid system with electric vehicle access

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