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Advanced Static Over-modulation Scheme using Offset Voltages Injection for Simple Implementation and Less Harmonics
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 Title & Authors
Advanced Static Over-modulation Scheme using Offset Voltages Injection for Simple Implementation and Less Harmonics
Lee, Dong-Myung;
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 Abstract
In this paper, a novel static overmodulation scheme (OVM) for space-vector PWM (SVPWM) is proposed. The proposed static OVM scheme uses the concept of adding offset voltages in linear region as well as overmodulation region to fully utilize DC-link voltage. By employing zero sequence voltage injection, the proposed scheme reduces procedures for achieving SVPWM such as complicated gating time calculation. In addition, this paper proposes a stepwise discontinuous angle movement in high modulation region in order to reduce Total Harmonic Distortion (THD). The validity of the proposed scheme is verified through theoretical analysis and experimental results.
 Keywords
Static overmodulation scheme;2-level inverter;Offset voltage injection;Total harmonic distortion;
 Language
English
 Cited by
1.
A Ripple Rejection Inherited RPWM for VSI Working with Fluctuating DC Link Voltage,;;;

Journal of Electrical Engineering and Technology, 2015. vol.10. 5, pp.2018-2030 crossref(new window)
1.
A Ripple Rejection Inherited RPWM for VSI Working with Fluctuating DC Link Voltage, Journal of Electrical Engineering and Technology, 2015, 10, 5, 2018  crossref(new windwow)
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