Independent photovoltaic power generation railway power supply control system and its control method

Abstract

The utility model relates to an independent photovoltaic power generation railway power supply control system. In railway electric equipment, there are a large impact load, a communication signal high stability load and other equipment with a special electric demand. Solar photovoltaic power generation is greatly influenced by an environment. In a photovoltaic power generation system, problems that solar energy conversion efficiency is low and power supply system power is insufficient generally exist. The system collects sun radiation energy and converts into direct-current electric energy. After conversion, charging is performed on a storage battery. A direct current is converted into an alternating current so that a load can use the alternating current. Load working voltage current information monitored by a working state collector and environment information monitored by an environment illumination collector and an environment temperature collector are transmitted to an energy storage system controller. After logic processing, control to a charging conversion module and an inversion conversion module is performed. According to a railway load operation state and an environment state, continuous and smooth electric energy is adjusted, controlled and output; photovoltaic power generation power quality and efficiency are increased and continuous stability of power supply transmission is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of railway power supply, and in particular relates to an independent photovoltaic power generation railway power supply control system and a control method thereof. Background technique [0002] The power supply of facilities along the railway is an important part of the railway operation and safety system. With the implementation of the national development strategy, the scope of railway operation is becoming wider and wider. When it is difficult to supply power in areas with weak power grids, it is urgent to solve the energy problem, and the investment in erecting the power grid is very high. However, my country is rich in solar energy resources, which are inexhaustible and inexhaustible. It is one of the fastest-growing energy sources in today's renewable energy sources, and it is also the focus of competing development in various countries. Vigorously develop solar energy resources for photovoltaic Power g...

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Problems solved by technology

[0003] There are equipment with special power requirements such as large impact loads and high stability loads of communication signals in railway electrical equipment, while solar photovoltaic power generation is greatly affected by the environment. In photovoltaic power generation systems, there are generally low solar conversion efficiency and low power supply system power. Insufficient problems not only waste clean energy and investment, but also pose a threat to the stability of the railway system

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