대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1997년도 추계학술대회 논문집 학회본부
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- Pages.518-520
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- 1997
PWM 인버터의 전압 이용률 개선
Improvement of Voltage Utilization in PWM Inverters
- Lee, G.-Myoung (School of Electrical and Electronic Eng., Yeungnam Univ.) ;
- Lee, Dong-Choon (School of Electrical and Electronic Eng., Yeungnam Univ.)
- 발행 : 1997.11.29
초록
In a space vector PWM inverter, the dc input voltage is utilized to the maximum by an overmodulation technique, which is derived from Fourier series expansion of the reference phase voltage. Data angles such reference angle and holding angle are piecewise-linearized for on-line control. Harmonic components and THD of the output voltage are also analyzed. For disturbance of the dc input voltage, a smooth transition is obtained from a linear range to the six-step mode by the control angle change.
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