Results 51 to 60 of about 1,684,593 (114)
Peak-Zero-DPWM for Improving Performance of Single-Phase Five-Level T-Type NPC Inverter
IEEE AccessThe discontinuous pulse width modulation (DPWM) improves the efficiency and reliability of power devices by reducing the switching losses. However, it aggravates the Total Harmonic Distortion (THD) of outputs and the reliability of DC-link capacitors ...
Taerim Ryu, Ui-Min Choi
doaj +1 more source
IET Power Electronics, Volume 17, Issue 15, Page 2344-2357, 25 November 2024.The proposed partitioned hybrid PWM strategy can restrict the common‐mode voltage within 1/6 of the DC voltage, while it makes a balance with the THD of the three‐phase current waveforms and the loss of the three‐level inverter compared to the conventional PWM strategy.
Cheng Song, Libo Wang, Jinhua Du
wiley +1 more source
A Bidirectional Grid-Tied ZVS Three-Phase Converter Based on DPWM and Digital Control
Energies, 2023 In this paper, a bidirectional grid-tied ZVS three-phase converter is proposed. The circuit operation principle in both the rectifier and inverter modes was analyzed. The proposed topology could achieve zero-voltage switching in the six main switches and
Yi-Hung Liao +4 more
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, 2012 This paper proposes a neutral-point voltage balancing method for a three-level inverter that uses discontinuous pulse width modulation (DPWM). The performance of a three-level inverter system is affected by the neutral-point voltage unbalancing ...
Lee, Hyun-Hee +5 more
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Research on Weighting Efficiency Improvement for PV Inverter Based on Segmental Modulation
Kongzhi Yu Xinxi Jishu, 2016 There are limitations in the evaluation strategy on power generation efficiency of PV grid-connected inverter with maximum conversion efficiency.
ZHAO Xianggui +3 more
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Machines, 2022 In order to reduce the switching loss and cost, as well as improve the reliability of the induction motor (IM) drive system, the technology involving the three-phase current reconstruction of 60° discontinuous pulse width modulation (DPWM2) is studied in
Pengyun Song +4 more
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IET Power Electronics, Volume 17, Issue 13, Page 1621-1631, 14 October 2024.An incremental predictive control strategy based on unipolar pulse width modulation (PWM) is proposed in the non‐commutation interval to double the current ripple frequency, which can reduce the current ripple. On this basis, the prediction equations of adjacent control periods are subtracted to eliminate the influence of non‐ideal back‐electromotive ...
Chong Zeng +3 more
wiley +1 more source
Novel clamping modulation for three‐phase buck‐boost ac choppers
Electronics Letters, Volume 60, Issue 13, July 2024.Three‐phase ac choppers feature output voltage amplitude controllability and enable more compact system realizations compared to autotransformers. However, these systems suffer from offset voltage drift, which was so far addressed by means of lossy discharge resistors. This paper proposes and verifies experimentally a novel clamping modulation ensuring
David Menzi +3 more
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Digital Pulse Width Modulation Controlled DC-DC Buck Converter using VHDL Coding [PDF]
, 2017 This paper presents the control of the DC-DC Buck converter using Digital Pulse Width Modulation (DPWM) methods in MATLAB-SIMULINK using XILINX TOOL. The conventional PWM is compared with the Digital Pulse Width Modulation.
Prathap, Joseph Anthony, Anandhi, T. S.
core
Discontinuous PWM Modulation for Active Power Filters Operating in Disturbed Environments [PDF]
, 2023 Active power filters (APFs) are power converters able to compensate for the distorted current components injected into the mains by non-linear loads. To reduce the APF switching losses and thus to allow using higher switching frequencies, discontinuous ...
Mallemaci, Vincenzo +3 more
core +1 more source