MATRIX CONVERTERS Dr Pat Wheeler‚ Dr Jon Clare‚ Dr Lee Empringham‚ Mr Maurice Apap and Mr Michael Bland School of Electrical and Electronic Engineering University of Nottingham‚ Nottingham‚ UK Tel. +44 (0) 115 951 5591‚ Fax. +44 (0) 115 951 5616‚ email. Pat.Wheeler@Nottingham.ac.uk SUMMARY Recently there has been considerable interest in the use of matrix converter technology for motor drive applications‚ with particular interest being shown by Siemens‚ Rockwell and Yaskawa. This paper gives
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balanced forward-flyback converter Yoon Choi‚ Moon-Hwan Keum‚ and Sang-Kyoo Han† Jeong-il Kang Power Electronics System Laboratory‚ POESLA Kookmin University Seoul‚ 136-702‚ Republic of Korea E-mail : †djhan@kookmin.ac.kr Visual Display‚ R&D Team Samsung Electronics. Co. Ltd. Suwon‚ Republic of Korea E-mail : jeongil.kang@samsung.com Abstract— In this paper‚ a high efficiency and high power factor single-stage balanced forward-flyback converter merging a foward and flyback converter topologies is proposed
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TRANSACTIONS ON INDUSTRIAL ELECTRONICS‚ VOL. 51‚ NO. 3‚ JUNE 2004 641 A Review of Three-Phase Improved Power Quality AC–DC Converters Bhim Singh‚ Senior Member‚ IEEE‚ Brij N. Singh‚ Member‚ IEEE‚ Ambrish Chandra‚ Senior Member‚ IEEE‚ Kamal Al-Haddad‚ Senior Member‚ IEEE‚ Ashish Pandey‚ Member‚ IEEE‚ and Dwarka P. Kothari‚ Senior Member‚ IEEE Abstract—Three-phase ac–dc converters have been developed to a matured level with improved power quality in terms of power-factor correction‚ reduced total
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Adaptive Control of a Step-Up Full-Bridge DC-DC Converter for Variable Low Input Voltage Applications Elton Pepa Thesis submitted to the faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree of Master of Science in Electrical Engineering Approved: ____________ok_________________ Dr. Jason Lai (Chair) ____________________ Dr. Krishnan Ramu ____________________ Dr. William T. Baumann February 6‚ 2004 Blacksburg
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paper describes the control and design of a Doubly Fed Induction Generator (DFIG) using back-to-back PWM converter in wind turbines. A back-to-back PWM converter is used as the excitation power supply for the DFIG wind power generation of variable speed constant frequency. The Simulink model and control strategy of converter which is connected to grid side is analyzed. The grid side converter is used to regulate the voltage of the DC link capacitor. Besides it satisfies the unity power factor of
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LINE COST AC TERMINAL COST DISTANCE 3 CONFIGURATION • NON CONTROLLABLE VALVE • CONTROLLABLE VALVE • NON CONTROLLABLE VALVE GROUP • CONTROLLABLE VALVE GROUP 4 TYPES OF CONVERTER BRIDGES • 6-PULSE CONVERTER BRIDGE • 12- PULSE CONVERTER BRIDGE / TWO 6PULSE BRIDGES CONNECTED IN SERIES 5 Different types HVDC Converter Bridge Arrangements BACK -TO-BACK This is application where two AC systems to be connected are physically in same substation and no transmission line or cable is required.This
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A Mini Project Report ON “SUPERCAPACITORS AND BATTERY POWER MANAGEMENT FOR HYBRID VEHICLE APPLICATIONS USING MULTI BOOST AND FULL BRIDGE CONVERTERS” Is submitted in the particular fulfillment for the award of the degree of BACHELOR OF TECHNOLOGY IN ELECTRICAL AND ELECTRONICS ENGINEERING By M.KRISHNAVENI 11B71A0206 A.PRADEEP 11B71A0244 E.SOUMYA 11B71A0249 P.SRINIVAS 11B71A0246 UNDER THE GUIDANCE OF Miss.M.PADMA ASST.PROFESSOR DEPARTMENT OF ELECTRICAL & ELECTRONICS ENGINEERING SINDHURA
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INDUSTRIAL ELECTRONICS‚ VOL. 59‚ NO. 7‚ JULY 2012 2745 Efficiency-Optimized High-Current Dual Active Bridge Converter for Automotive Applications Florian Krismer‚ Student Member‚ IEEE‚ and Johann W. Kolar‚ Fellow‚ IEEE Abstract—An efficiency-optimized modulation scheme and design method are developed for an existing hardware prototype of a bidirectional dual active bridge (DAB) dc/dc converter. The DAB being considered is used for an automotive application and is made up of a high-voltage port with
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for drawing‚ sketching or graphical work. 7. This paper may be retained by the candidate. ELEC4240/9240 - Power Electronics 1 See over for Question 1 QUESTION 1 The input current drawn for an ac source line connected to a power converter is indicated in figure Q1‚ together with the ac input voltage of the line to neutral of the supply. The current waveform is flat-topped quasi-square of amplitude 150A. The ac source voltage is given by v = Vmax sin ω t where Vmax is 340 V‚ ω =
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firing angle from 0 to 180 degrees has been calculated and plotted. Furthermore‚ the power balance between the AC and DC-side of the converter has been explained. Index Terms— Converter‚ EMTDC‚ HVDC‚ PSCAD‚ Real power‚ Reactive power considering a large inductor as load on the converter dc side so that the current remains unidirectional and constant. The 12 pulse converter in the system has been designed by connecting two 6-pulse Graetz bridge blocks in series. The two transformers are modeled as one
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