Power electronics for Waste Heat Recovery Unit with MPPT and Without Current Sensing

It is proven that the effects of the carbon footprint in the global planet is steadily increasing the temperature. In the EU28 it is estimated that 70% of the energy used in industry is used for thermal processes, and more than the 21% is lost as waste heat. It is a need to invest in the construction of waste heat recovery systems as guarantors of energy return systems.Focusing in it, this paper presents a new DC/DC converter with Maximum Power Point Tracker (MPPT) without the need to sense current for thermoelectricity harvesting systems. Multiple converters can be also directly connected in systems composed of cells working at different temperature, as it is usually the case in systems that use thermoelectric generator modules (TGM). The MPPT described in this paper is intended to be used in a multichannel high-efficiency thermoelectric generating system.