GB/T 45306-2025 Railway applications—Power supply with onboard energy storage system for rolling stock—Series hybrid system

Scope

This document specifies the basic requirements, characteristics, and functions of hybrid systems, and describes the corresponding test methods, as follows:
—— Energy management, used to control the power flow between the main power supply, the on-board energy storage system, and the converter;
—— Energy consumption, energy efficiency, and renewable energy;
—— Vehicle characteristics under power supply from the on-board energy storage system;
—— Test methods for combined tests.
Note: In this document, the converter refers to a combination device composed of one or more converters (such as rectifiers, inverters, choppers, etc.).
This document specifies the connection relationships between the following power sources:
—— External power supply system;
—— On-board energy storage system;
—— Fuel cells, internal combustion engines;
—— Other power sources.
For combinations of inverters and motors, including but not limited to asynchronous or synchronous motors powered by voltage source inverters.
This document applies to electrically connected series hybrid power systems (hereinafter referred to as hybrid systems) of rail transit locomotives and vehicles with on-board energy storage.

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