Nội dung chi tiết: Design and analysis of high frequency matrix converters for induction heating
Design and analysis of high frequency matrix converters for induction heating
High-frequency matrix converts ẲVA AAAMUVIAVAA AiV150 k Design and analysis of high frequency matrix converters for induction heatingkHz) matrix converters for induction heating applications. The primary goal has been to explore the possibility of making high performance direct converters, allowing more compact and reliable power conveners to be realised, by removing the bulky energy storage components of the DC-hnk found in trad Design and analysis of high frequency matrix converters for induction heatingitional approaches. High input power quality, i.e unity input power factor and very low input total harmonic distortion (THD). and good efficiency are
Design and analysis of high frequency matrix converters for induction heating
demanded.A single-phase matrix converter has been developed to firstly explore the possibility of performing high speed commutation of output currentHigh-frequency matrix converts ẲVA AAAMUVIAVAA AiV150 k Design and analysis of high frequency matrix converters for induction heating wide power control range, has been developed and experimentally verified The high performance of the converter has been confirmed by comparison to a benchmark reference converter, which is a modified H-bridge converter with an unsmoothed DC-link. A pulse density modulation scheme has also been deve Design and analysis of high frequency matrix converters for induction heatingloped and preliminarily verified, for use in the development of the three-phase to single-phase matrix converter.A novel topology of three-phase direc
Design and analysis of high frequency matrix converters for induction heating
t converter, in the form of a 3x2 matrix converter, featuring high input power quality, and soft-switching operation, has been proposed, along with a High-frequency matrix converts ẲVA AAAMUVIAVAA AiV150 k Design and analysis of high frequency matrix converters for induction heating(in a 3*2 matrix converter), for an interval of up to a few tens of switching cycles. Following that, a constant output pulse density modulation (CPDM) method has been developedNam Nguyen-Quang High-frequency matrix converts AVA AAAMUVIAVAA AAVCUAAI£and tested, showing improvements on rhe input curr Design and analysis of high frequency matrix converters for induction heatingent waveform, but further reduction of THD is still required. Three variable output pulse density modulation (VPDM) methods, utilising different pulse
Design and analysis of high frequency matrix converters for induction heating
patterns, have finally been proposed, to create high input power quality and good efficiency, with results supported by measurements on an experimentHigh-frequency matrix converts ẲVA AAAMUVIAVAA AiV150 k Design and analysis of high frequency matrix converters for induction heatingor the synthesis of three-phase input cun ent system.Finally, some methods of improving converters’ efficiency, namely reducing on-state resistance of power devices, and application of syncluonous rectification, have been investigated. Since the on-state resistance of power devices has been reduced Design and analysis of high frequency matrix converters for induction heatingto a value that is not yet realistic in commercial devices, the investigation has therefore been earned out by simulations. Switching patterns for bot
Design and analysis of high frequency matrix converters for induction heating
h the single-phase and the three-phase to single-phase matrix converters have been modified to accommodate synchronous rectification action where apprHigh-frequency matrix converts ẲVA AAAMUVIAVAA AiV150 k Design and analysis of high frequency matrix converters for induction heatinghesis are the first direct converters to supply high frequency (>150 kHz) output current, mainly for induction heating applications, featuring the following advantages:•Single-step voltage commutation, allowing high speed soft-switching, at low implementation cost•Very high input quality, i.e. unity Design and analysis of high frequency matrix converters for induction heating power factor and very low input current THD•Very good efficiencies (at least 92% at frill power)•PWM and PDM methods of power control, helping reduce
Design and analysis of high frequency matrix converters for induction heating
EMC problems associated with frequency modulation methods11Nam Nguyen-Quang High-frequency matrix converts AVi IHUUVUVU HV(tllll£• Very simple controHigh-frequency matrix converts ẲVA AAAMUVIAVAA AiV150 k Design and analysis of high frequency matrix converters for induction heatingnclude:N. Nguyen-Quang. D A Stone, CM. Bingham. & M p Foster: 'Single phase matrix converter for radio frequency induction heating’. SPEEDAM 2006. Taormina. Italy.CD-ROM Proceedings.N. Nguyen-Quang. D A. Stone, c M Bingham, & M.p. Foster: 'Comparison of singlephase matrix converter and H-bndge conve Design and analysis of high frequency matrix converters for induction heatingrter for radio frequency induction heating’, EPE-2007. Aalborg. Denmark. CD-ROM Proceedings.N. Nguyen-Quang. D A. Stone. C M. Bingham, & M.p. Foster:
Design and analysis of high frequency matrix converters for induction heating
‘A three-phase to single-phase matrix converter for high-frequency induction heating’, accepted for publication 111 EPE-2009. Barcelona. Spain.IllNam High-frequency matrix converts ẲVA AAAMUVIAVAA AiV150 k Design and analysis of high frequency matrix converters for induction heating Dr. Chris Bingham, for their invaluable guidance and support during the entire length of my PhD study. I also thank Prof Geraint Jewell for acting as internal examiner, and Di. Suleiman Abu-Sharkh of the University of Southampton for acting as external examiner.I would also like to thank the Vietna Design and analysis of high frequency matrix converters for induction heatingmese government, in particular the “Vietnamese Overseas Scholarship Program", for their financial support, without which my P11D study would be imposs
Design and analysis of high frequency matrix converters for induction heating
ible.My thanks to all members of the Electrical Machines and Drives research group, where the work for this research was conducted. This has been my sHigh-frequency matrix converts ẲVA AAAMUVIAVAA AiV150 k Design and analysis of high frequency matrix converters for induction heatingeat companion.I would like to express my appreciation to my family and close friends. In particular. I thank my mother, my father and my sister.ivHigh-fl equency matrix conveiKi^ AVI UỈMUVIỈVIỈNam Nguyen-Qtiang Design and analysis of high frequency matrix converters for induction heatingHigh-frequency matrix converts ẲVA AAAMUVIAVAA AiV150 k