Title :
A novel overmodulation technique for space vector PWM inverters
Author :
Lee, Dong-Choon ; Lee, G-Myoung
Author_Institution :
Sch. of Electr. & Electron. Eng., Yeungnam Univ., Kyungbuk, South Korea
Abstract :
In this paper, a novel overmodulation technique for space-vector PWM inverters is proposed. The strategy, which is based on Fourier series expansion of the reference voltage and which is easy to understand graphically, can achieve maximum utilization of the DC bus voltage. When the method is applied to the V/f control of an induction motor, smooth operation during transition from the linear control range to the six-step mode is shown through both simulation and experimental results
Keywords :
DC-AC power convertors; Fourier series; PWM invertors; bipolar transistor switches; harmonic distortion; insulated gate bipolar transistors; power bipolar transistors; power semiconductor switches; power system harmonics; switching circuits; DC bus voltage; Fourier series expansion; IGBT PWM invertor; V/f control; induction motor; linear control range; overmodulation technique; reference voltage; six-step mode operation; space vector PWM inverters; Circuit simulation; Fourier series; Frequency conversion; Induction motors; Power conversion; Pulse width modulation inverters; Snubbers; Space vector pulse width modulation; Switching circuits; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 1997. PESC '97 Record., 28th Annual IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-3840-5
DOI :
10.1109/PESC.1997.616858
