Extended Double Carrier PWM Strategy Dedicated to RMS Current Reduction in DC Link Capacitors of Three-Phase Inverters - Université de technologie de Compiègne Access content directly
Journal Articles IEEE Transactions on Power Electronics Year : 2014

Extended Double Carrier PWM Strategy Dedicated to RMS Current Reduction in DC Link Capacitors of Three-Phase Inverters

The Dung Nguyen
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Nicolas Patin
Guy Friedrich

Abstract

This paper presents a new pulse width modulation (PWM) strategy, called extended double carrier PWM, for a two-level voltage source inverter aiming at reducing the RMS current flowing through dc link filtering capacitors on embedded systems over a large modulation index range and for high-power factor loads (cos φ ≥ 0.8). Instead of utilizing two adjacent active vectors at each switching period as in classic PWM strategies, this new strategy utilizes two nonadjacent active vectors in the case of low-modulation index or three consecutive active vectors in the case of high-modulation index. Analytical calculations show that this new strategy is particularly effective in terms of reducing filtering capacitor rms current for high-power factor compared to space vector PWM which is used as a reference strategy. The impact of this strategy on output current quality is also investigated.
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Dates and versions

hal-01969931 , version 1 (04-01-2019)

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The Dung Nguyen, Nicolas Patin, Guy Friedrich. Extended Double Carrier PWM Strategy Dedicated to RMS Current Reduction in DC Link Capacitors of Three-Phase Inverters. IEEE Transactions on Power Electronics, 2014, 29 (1), pp.396-406. ⟨10.1109/TPEL.2013.2251005⟩. ⟨hal-01969931⟩
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