Results 21 to 30 of about 58,304 (309)

Design and Development of Low Torque Ripple Variable-Speed Drive System With Six-Phase Switched Reluctance Motors [PDF]

open access: yes, 2018
Switched reluctance motor (SRM) drives conventionally use current control techniques at low speed and voltage control techniques at high speed. However, these conventional methods usually fail to restrain the torque ripple, which is normally associated ...
Deng, Xu   +3 more
core   +2 more sources

Voltage Ripple Reduction in Voltage Loop of Voltage Source Converter

open access: yesInternational Journal of Power Electronics and Drive Systems (IJPEDS), 2017
In order to achieve a good dynamical response of a full-bridge AC-DC voltage source converters (VSC). The bandwidth of PI controller must be relatively wide. This leads to the voltage ripple produced in the control signal, as known that its ripple frequency has twice of the line frequency and cause the 3rd harmonic of an input current. A Ripple Voltage
Jedsada Jaroenkiattrai, Viboon Chunkag
openaire   +1 more source

Analysis and Control of Current Ripples of Z-Source Inverters

open access: yesIEEE Access, 2020
Load current ripple is an important issue in the design and control of inverters since it influences the torque ripple and noise amplitude of a motor drive. The current ripple of Z-source inverter (ZSI) is analyzed in this paper.
Dong Shuai, Zhang Qianfan
doaj   +1 more source

Per-Core DVFS with Switched-Capacitor Converters for Energy Efficiency in Manycore Processors [PDF]

open access: yes, 2015
Integrating multiple power converters on-chip improves energy efficiency of manycore architectures. Switched-capacitor (SC) dc-dc converters are compatible with conventional CMOS processes, but traditional implementations suffer from limited conversion ...
Alon, E   +6 more
core   +1 more source

A back to back multilevel converter for driving low inductance brushless AC machines [PDF]

open access: yes, 2007
Traditionally, multilevel converters are utilised in medium voltage applications, allowing the DC-link voltage to exceed the switch maximum blocking voltage.
Bingham, Chris   +3 more
core   +1 more source

Optimization of switching losses and capacitor voltage ripple using model predictive control of a cascaded H-bridge multi-level StatCom [PDF]

open access: yes, 2013
This paper further develops a Model Predictive Control (MPC) scheme which is able to exploit the large number of redundant switching states available in a multi-level H-bridge StatCom (H-StatCom).
Betz, Robert E.   +5 more
core   +2 more sources

Analysis of output voltage ripple for dual randomized PWM buck converter operating in continuous and discontinuous conduction modes

open access: yesActa Polytechnica, 2022
Dual Randomized Pulse Width Modulation (DRPWM) is renowned for its better effectiveness than Simple Randomized Pulse Width Modulation (SRPWM) in reducing conducted Electro-Magnetic Interferences (EMI) in power converters. However, the introduction of low-
Aimad Boudouda   +2 more
doaj   +1 more source

Quadratic boost converter with low‐output‐voltage ripple [PDF]

open access: yesIET Power Electronics, 2020
This study proposes a non‐isolated quadratic boost converter (QBC) that features a low‐output‐voltage ripple with respect to traditional QBCs. This advantage is in contrast with other topologies that require a higher amount of stored energy by capacitors to achieve the same output‐voltage ripple specification.
Oswaldo Lopez‐Santos   +5 more
openaire   +1 more source

A Low Torque Ripple Direct Torque Control Method for Interior Permanent Magnet Motor

open access: yesApplied Sciences, 2020
This paper proposes a simple method to generate stable voltage commands for permanent magnet synchronous motors to achieve low torque ripple based on space vector modulation direct torque control (SVM-DTC).
Min-Fu Hsieh, Yun-Chung Weng
doaj   +1 more source

Passive Power Filters [PDF]

open access: yes, 2016
Power converters require passive low-pass filters which are capable of reducing voltage ripples effectively. In contrast to signal filters, the components of power filters must carry large currents or withstand large voltages, respectively. In this paper,
Künzi, R.
core   +3 more sources

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