Control method of regenerative braking energy utilization device and related assembly

The invention discloses a control method of a regenerative braking energy utilization device and a related assembly, relates to the field of regenerative braking and is used for regenerative braking energy transfer. Whether a first substation and/or a second substation are/is in a normal operation state of uplink and downlink parallel power supply is judged by detecting whether a first uplink and downlink tail end parallel circuit breaker and/or a second uplink and downlink tail end parallel circuit breaker are/is switched off. And when the first uplink and downlink tail end parallel circuit breaker and/or the second uplink and downlink tail end parallel circuit breaker are/is opened, the regenerative braking energy utilization device is controlled to stop working, so that the regenerative braking energy utilization device is quitted from systems of the first substation and the second substation, and the situation that the regenerative braking energy utilization device is in the abnormal operation state of th