Systems and methods for providing heat control in a multi-stack fuel cell system

A system comprises a plurality of power converters configured, via a processing device, to balance heat from a plurality of fuel cell stacks. The processing device, which is a computing device, is configured to set one or more parameter values of one of the power converters located at the output of one of the plurality of stacks such that the one stack preferentially provides power to a load. It then determines a heat power of the one stack and of one or more other stacks of the plurality of stacks, each of the heat powers being determined based on a voltage and current that are determined by voltage and current sensors located at the input of the respective power converter. Then it determines whether the heat power of the one stack satisfies a criterion, and if it does, sets one or more parameter values of each of the power converters located at the output of the one or more other stacks such that the heat power of each of the one or more other stacks more closely matches the heat power of the one stack. A method and computing device for carrying out the method are also disclosed.