A capacity optimization configuration method for urban rail transit photovoltaic energy storage system

A technology for urban rail transit and capacity optimization configuration, applied in the direction of load balancing in DC network, parallel operation of DC power supply, etc., can solve the problem of capacity optimization configuration research and application, impact, energy storage of urban rail photovoltaic-storage system Problems such as immature technology and cost
CN110661246BActive Publication Date: 2021-03-02北方国际合作股份有限公司 +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
北方国际合作股份有限公司
Publication Date
2021-03-02

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Abstract

The invention discloses a capacity optimization configuration method for urban rail transit photovoltaic energy storage systems. According to the operation characteristics of urban rail transit with large morning and evening peak loads, a time-sharing operation strategy is formulated to determine the operation of photovoltaics, energy storage and power grids in different periods status; study typical daily load curves and photovoltaic output curves for output adaptability analysis, integrate photovoltaic and energy storage time-sharing operation characteristics and output adaptability analysis, establish an optimization model with voltage fluctuation and economy as the objective function, and pass the weighted value The multi-objectives are converted into single-objective optimization functions by means of a single-objective optimization function, and the particle swarm optimization algorithm is used to solve the problem to obtain the optimal configuration of the energy storage capacity of the system. The invention is beneficial to promote the energy saving and emission reduction of the urban rail system and the consumption of local photovoltaics, and at the same time reduce the network voltage fluctuations to improve the power quality of the traction side, time-sharing operation and use of energy storage to cut peaks and valleys of photovoltaics and load peaks Improve system economy.
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Description

technical field

[0001] The invention belongs to the technical field of urban rail transit power supply systems, and in particular relates to a capacity optimization configuration method of an urban rail transit photovoltaic energy storage system. Background technique

[0002] With the improvement of the national economic level and the acceleration of urbanization, urban rail transit has developed rapidly in large and medium-sized cities in China, ushering in a new period of comprehensive development. Under the traditional energy structure model, large-scale electricity consumption will bring huge energy consumption and make environmental pollution more serious, which will greatly affect the construction of urban environment and sustainable development. Therefore, the access of renewable energy such as solar energy and wind energy is of great significance to the green development of urban rail transit and energy conservation and emission reduction.

[0003] At present, solar...

Claims

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