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In this paper, a 2.2 kW three-level voltage source inverter for AC motor application is presented. The hardware design is described. In order to achieve low dv/dt of the output voltage, a novel algorithm of space vector modulation (SVM) is applied. According to the algorithm, a fixed output vector 111 is added in every control period to achieve smooth change between vectors. Potential stability of neutral point voltage of DC-link capacitors is also achieved by a convenient method. The modulator is implemented with DSP and PLD (programmable logic device). Some simulation results and experimental results are given.
Power System Technology, 2002. Proceedings. PowerCon 2002. International Conference on (Volume:1 )
Date of Conference: 13-17 Oct 2002