Replacing traditional diesel engine power with lithium battery pack power, that is, using lithium battery pack power during RTG operation, the small diesel generator set only operates when the lithium battery pack needs to be charged.

The energy generated in motor power generation scenarios such as RTG lifting and lowering does not need to be consumed through braking resistors, but can be used to charge lithium battery packs by installing an IGBT bridge rectifier controllable rectifier.

There are two power supply methods for battery energy storage:

1. Lithium battery pack+mains power: that is, lithium battery pack is used for power supply during RTG crossing and transition, and mains power is used for power supply in the work area;

2. Lithium battery pack+small diesel generator set: RTG operation is powered entirely by lithium battery packs. The small diesel generator set charges the lithium battery pack and provides additional energy feedback to charge the battery.

Hybrid ERTG

Advantage:

1.    No major infrastructure investment; low retrofit cost.

2.    Flexible RTG transfer between yard blocks.

3.    Diesel-electric hybrid operation eliminates range limitations.

4.    No manual power connection required during operation.

5.    Multiple RTGs can operate simultaneously in the same yard block.

Disadvantage:

1.       Complex system architecture with higher maintenance requirements.

2.       Requires specialized expertise for both diesel engine and battery systems.

3.       Cannot achieve true zero-emission RTG operation.