High-speed rail power supply system energy storage

What is energy storage system in high-speed railway power system?

Energy storage system is an important part of high-speed railway power system. Energy shift can be realized by energy storage system. Energy storage system can capture the residual energy from the regenerative braking by charging. The demand for power purchase of the system can be reduced by discharging when the traction load is high.

What is high-speed railway power system?

High-speed railway power system consists of traction power system and station power system. High-speed railway locomotives generate electrical energy that is fed back to the grid during regenerative braking, and the grid company adopts the policy of ignoring the reverse transmission, which wastes energy on the railway system.

Does the high-speed railway traction power supply system change form and operation?

The traction power supply system, a crucial component of energy conversion of the high-speed railway, will have a significantly changing form and operation. The form evolution motivations and the operation control objectives of the high-speed railway traction power supply system are first examined.

Can a new energy storage traction power supply system improve regenerative braking energy utilisation?

To solve the negative sequence (NS) problem and enhance the regenerative braking energy (RBE) utilisation in an electrified railway, a novel energy storage traction power supply system (ESTPSS) is proposed in this study.

What are electrical railway power supply systems?

Electrical railway power supply systems, ERPSS, are defined as the set of elements required to feed the trains with the necessary energy to ensure their proper operation. The type and configuration of these elements have changed significantly over time driven by the technological developments available at each moment.

What is high speed railway?

HIGH speed railway has developed rapidly in recent years. Traction power supply system, which is the main source of current train power, is related to the safe operation of railway transportation and power grid. Electrified railway is considered to be one of the highest energy consumption users in the public power grid .