Abstract
In the context of the Energy Internet, in order to save energy, protect the environment and achieve green development, the consumption of renewable energy nearby has become the future development trend of the traction power supply system for electrified railways. Photovoltaic power generation has high reserves and mature technology. If it is combined with energy storage, it can be widely used in railway traction power supply systems. So far, there is no literature on the impact of integrated solar energy storage integrated into the high-speed rail traction power supply system on traction transformers. After the photovoltaic is connected, it can play a role in peak shaving to a certain extent when the transformer is operating in an overload state, thereby reducing the damage to the transformer caused by overload operation, reducing the installation capacity required by the traction transformer, and extending the transformer's life to a certain extent. service life. This report first uses MATLAB/SIMULINK to build a comprehensive energy power supply system model, selects typical high-speed rail loads to obtain the current waveform of the secondary side of the traction transformer; and then combines the transformer hotspot temperature calculation model, aging rate and life loss calculation model to obtain the transformer after photovoltaic connection. The effect of aging rate.
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