Design of the feedback type DC electronic load hardware circuit using IPM

Firstly, the paper shows the comparison between the traditional resistance load and the new electronic load. And then it suggests the implementation scheme of the feedback type DC electronic load, which features feeding back energy to the public grid. Furthermore, the structure of the inverter, which is the kernel module of the feedback type electronic load, is introduced. Finally, an excellent functional and reliable single-phase grid-connected inverter is developed, using IPM to constitute its main circuit. The driving circuit, as well as the snubber circuit and protection circuit, is designed. With advantages of energy saving and high efficiency, the feedback type DC electronic load possesses extensive application foreground and pretty well economic benefit.