Assume two independent inverters feeding two INDUCTION motors interlocked by gears. The system normal operation is running one inverter as master and another as follower (slave) to share the load. However sometimes it is necessary to stop one inverter and run the other. This obviously results in other motor spinning as well. Assuming that these are induction motors, will that be a problem in terms of motor regenerating back into non-running inverter under following conditions?
- Inverter completely de-energized
- DC bus energized but IGBTs not firing (inverter stopped).