Redundancy Power Control System and Method for Controlling the Same

A method performed by an apparatus of a vehicle, the method comprising:

• determining whether a failure of a second DC-DC converter occurs, wherein a first DC-DC converter converts an input voltage to a first voltage, and wherein the second DC-DC converter converts the input voltage to a second voltage;
• providing, based on a determination that the failure of the second DC-DC converter occurs and using the first DC-DC converter, an indication of a first maximum convertible power output to a first power distributor, wherein the first power distributor supplies the first voltage output from the first DC-DC converter to at least one first electrical load;
• checking, using the first power distributor, a first current amount consumed by the at least one first electrical load;
• transmitting, based on the first maximum convertible power output and the first current amount and using the first power distributor, an indication of a first spare current amount to a second power distributor, wherein the second power distributor supplies the second voltage output from the second DC-DC converter to at least one second electrical load;
• transmitting, based on a target current amount and using the second power distributor, a power conversion request to a bidirectional converter, wherein the target current amount is determined based on the first spare current amount;
• converting, based on the power conversion request and using the bidirectional converter, power associated with the first low-voltage into power associated with the second low-voltage and supplying the converted power associated with the second voltage to the second power distributor within a range of the target current amount;
• and
• supplying, to the at least one second electrical load, a combination of power received by the second power distributor from the bidirectional converter and power discharged from a second voltage battery associated with the second power distributor.

An apparatus comprising:

• a processor;
• and
• a memory storing at least one instruction that, when executed by the processor communicating with the memory, is configured to cause the apparatus to:
• receive, from a plurality of power converters, respective power output information;
• determine, for the plurality of power converters, a respective current consumption amount associated with at least one electrical load connected to a corresponding power converter;
• determine, based on the respective power output information and the respective current consumption amount, a respective spare capacity for the plurality of power converters;
• detect at least one power converter with a fault condition among the plurality of power converters;
• determine, based on the fault condition and a spare capacity of at least one non-faulty power converter among the plurality of power converters, a target power conversion value;
• and
• control, based on the target power conversion value, a bidirectional converter to convert power from the non-faulty power converter to compensate for the fault condition.