Results 41 to 50 of about 146,224 (205)
MATEC Web of Conferences, 2015 This paper proposes a regulation method of back-to-back connected two-level PWM rectifier-five-level Voltage Source Inverter (VSI) in order to reduce the torque ripple in induction motor.
Abdelkrim Thameur +2 more
doaj +1 more source
Control of Unit Power Factor PWM Rectifier
Energy and Power Engineering, 2013 To solve the problem of harmonic pollution to the power grid that caused by traditional diode rectifier and phase controlled rectifier, the unit power factor PWM rectifier is designed. The topology structure of the rectifier circuit is introduced and the double closed-loop control strategy in three-phase stationary coordinate system is analyzed.
Meifang Xue, Mingzhi He
openaire +1 more source
Application of Sliding Mode Variable Structure in Direct Power Control for PWM Rectifier
Kongzhi Yu Xinxi Jishu, 2015 Based on the instantaneous power theory, it deduced mathematical model of active and reactive power for three-phase PWM rectifier in two-phase stationary coordinate system, and proposed sliding mode variable structure control (SMVSC) strategy to achieve ...
XIE Dan, XIAO Shenping, CHEN Jielian
doaj
Soft Switching Full-Bridge PWM DC/DC Converter Using Secondary Snubber [PDF]
Journal of Electrical and Electronics Engineering, 2009 A novel full-bridge PWM DC/DCconverter with controlled secondary side rectifier usingsecondary snubber is presented in this paper.Limitation of the circulating current as well as softswitching for all power switches of the inverter isachieved for full ...
Jaroslav Dudrik +4 more
doaj
Kongzhi Yu Xinxi Jishu, 2012 The digital model of three-phase PWM rectifier is always the hot topic of research. This thesis testifies the three-phase single input/output (SISO) PWM rectifier model, based on which the controller is designed and its control effect is demonstrated ...
CHEN Tao, ZHANG Zhixue, MEI Wenqing
doaj
Research of method of maintaining high power factor for PWM rectifier
Gong-kuang zidonghua, 2014 In view of problem that serious voltage fluctuation underground may affect unit power factor of power supply, variable output DC voltage method was proposed to control DC side voltage of PWM rectifier, so as to ensure the PWM rectifier working with high ...
ZHENG Lijun, SHEN Yarui, SONG Jiancheng
doaj
A High Power Factor Hybrid three-phase Rectifier with Regenerative Capability
Eletrônica de Potência, 2012 This paper presents theoretical analysis and experimentation of a hybrid three-phase rectifier suitable for medium and high power applications. The hybrid rectifier is formed by the parallel connection of a three-phase diode bridge rectifier cascaded by
Carlos Henrique Illa Font, Ivo Barbi
doaj +1 more source
Research of Direct Power Control of PWM Rectifier Based on Virtual Flux Orientatio
Gong-kuang zidonghua, 2011 The paper proposed a direct power control strategy of PWM rectifier based on virtual flux orientation. The strategy controls active power and reactive power of PWM rectifier instead of active and reactive current components of traditional control methods
WANG Hong-qian, LIU Shou-quan
doaj
UNITY POWER FACTOR CONTROL BY PWM RECTIFIER
International Journal of Research in Engineering and Technology, 2013 This paper analyzes the principle of PWM rectifier and presents a unity power factor control method of PWM rectifier. Controller used double closed-loop PI control, which inner use s three-phase input current control method controll ed by unity power factor and outer controls the output DC voltage of rectifier.
openaire +1 more source
Control strategy for single-phase PWM rectifiers
Electronics Letters, 1997 A new control strategy is proposed for single-phase pulsewidth modulation (PWM) rectifiers of the voltage-source type. The method eliminates the need for sensing the AC-side current. Analysis of the method and computer simulation results for steady-state operation are presented.
O. Kukrer, H. Komurcugil
openaire +1 more source