In electrical power converter systems, the presence of an LC input filter can efficiently\nreduce the Electromagnetic Interference (EMI) effect, and at the same time protect the converter\nand the load from being impacted by sharp input impulse voltages. However, for transportation\napplications, the weight and size limitations of input LC filters for power converters have to be\ntaken into consideration. The reduction of LC filter size may impair the system stability margin and\ndynamic response. In serve cases, the system may even become unstable. Thus, in order to ensure\nthe system stability while minimizing the input LC filter size, the implementation of a stabilizer for\nthe system control is needed. In this paper, a novel digital stabilizer design method is proposed for\na boost power converter with a small input LC filter. The proposed method is based on input filter\ninductance current measurements and DSP (Digital Signal Processor) -based digital stabilizer design.\nSimulation and experimentation confirm the validity of the proposed approach.
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