Title :
Development of quasi 24-step voltage source inverter
Author :
Kawasugi, K. ; Masukawa, Shigeo
Author_Institution :
Dept. of Electr. & Electron. Eng., Tokyo Denki Univ., Tokyo, Japan
Abstract :
A new method for reducing harmonics involved in output voltages of a three-phase voltage source inverter is proposed. It is applied to the conventional 6-step inverter with a three-phase autotransformer. By injecting harmonics to the neutral point of the autotransformer from an auxiliary circuit, output voltages of the proposed inverter can be almost the same as a conventional 24-step inverter. In this paper, circuit performances and output voltage waveforms are discussed, and the optimum parameters are determined by taking effect of harmonic reductions. Then, characteristics of the proposed inverter can be clarified by simulation results.
Keywords :
autotransformers; harmonics suppression; invertors; 6-step inverter; harmonic reduction method; output voltage waveforms; quasi24-step voltage source inverter; three-phase autotransformer; three-phase voltage source inverter; Capacitors; Harmonic analysis; Harmonic distortion; Inverters; Performance evaluation; Simulation; Switches; harmonic injection; harmonics; inverter; multi-parallel connection; multi-sequential connection;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2012 15th International Conference on
Conference_Location :
Sapporo
Print_ISBN :
978-1-4673-2327-7
