Reduction of input current harmonics based on space vector modulation for three-phase VSI with varied power factor

Nishizawa, Koroku; Nagaoka, Jun-ichi Itoh; Odaka, Akihiro; Toba, Akio; Umida, Hidetoshi

doi:10.1109/ecce.2016.7855384

Cited by 7 publications

(7 citation statements)

References 16 publications

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“…Simulation results are presented in Figure 8. The peak-to-peak envelopes calculated by Equation (19) as the half of peak-to-peak dc-link voltage ripple amplitude ∆vpp/2(t) (red traces) are shown together with the instantaneous dc-link voltage switching ripple ∆v(t) (blue trace) over a funda- Simulation results are presented in Figure 8. The peak-to-peak envelopes calculated by Equation 19 Simulation results are presented in Figure 8.…”

Section: Numerical and Experimental Resultsmentioning

confidence: 99%

“…The peak-to-peak envelopes calculated by Equation 19 Simulation results are presented in Figure 8. The peak-to-peak envelopes calculated by Equation (19) as the half of peak-to-peak dc-link voltage ripple amplitude ∆vpp/2(t) (red traces) are shown together with the instantaneous dc-link voltage switching ripple ∆v(t) (blue trace) over a funda- Figure 8. In all screenshots, two upper traces present the load voltage and current (green and red traces, respectively) and the bottom (blue) trace presents the measured dc-link voltage switching ripple ∆v(t).…”

Section: Numerical and Experimental Resultsmentioning

confidence: 99%

“…Finally, from Equation (19), one can see that the magnitude of the dc-link voltage ripple is always determined by the maximum value of those two.…”

Section: Maximum Peak-to-peak Voltage Ripplementioning

confidence: 99%

“…A generalized approach for determining the harmonic spectrum of the dc-link capacitor currents in different two-and three-level VSI topologies has been developed in [18]. In [19][20][21], different modulation methods aimed at reducing the input current harmonics flowing through the dc-link capacitor of the three-phase VSIs have been proposed.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of dc-Link Voltage Switching Ripple in Three-Phase PWM Inverters

et al. 2018

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The three-phase voltage source inverter (VSI) is de facto standard in power conversion systems. To realize high power density systems, one of the items to be correctly addressed is the design and selection of the dc-link capacitor in relation to the voltage switching ripple. In this paper, effective formulas for designing the dc-link capacitor as a function of the switching voltage ripple amplitude are obtained, considering the operating conditions such as the modulation index and the output current amplitude. The calculations are obtained considering the requirements and restrictions referring to the high (switching)-frequency dc-link voltage ripple component. Analyses have been performed considering the dc source impedance (non-ideal dc voltage source at the switching frequency) and a balanced load. Analytical expressions are derived for the dc-link voltage switching ripple amplitude and its maximum value over the fundamental period. Different values of modulation index and output phase angle have been considered and different diagrams are presented. Analytical results were validated both by simulations and comprehensive experimental tests.

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Section: Numerical and Experimental Resultsmentioning

confidence: 99%

Section: Numerical and Experimental Resultsmentioning

confidence: 99%

“…Finally, from Equation (19), one can see that the magnitude of the dc-link voltage ripple is always determined by the maximum value of those two.…”

Section: Maximum Peak-to-peak Voltage Ripplementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis of dc-Link Voltage Switching Ripple in Three-Phase PWM Inverters

et al. 2018

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“…Since DC-link capacitor accounts for a large part of the inverter system size, optimising its size is a key goal for inverter system design. Based on the two-level VSI, some researchers have proposed optimised space vector pulse modulation to reduce the DC-link RMS current [10][11][12]. Comparing the classical spacevector modulation, the proposed method uses the non-adjacent voltage vector to decrease the RMS current in each switching period.…”

Section: Introductionmentioning

confidence: 99%

DC‐link current analysis of three‐phase 2L‐VSI considering AC current ripple

Qiao

Jiang

2018

IET Power Electronics

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DC-link current is an important parameter for selection and design of DC-link capacitor or battery. Considering the AC current ripple, this study introduced a general DC-link current real-time prediction method for three-phase two-level voltage inverters (three-phase 2L-VSI) using the pulse width modulation. Compared with the traditional analysis which just takes AC average current into consideration, the time-domain comparison and spectral analysis of DC-link current have been studied. Meanwhile, accurate calculation of RMS current on the DC-link capacitor has been provided. Simulation results and experimental results are provided to support the analysis and proposed method.

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