Title :
Design of a PWM current source rectifier for high power induction melting applications
Author :
Richter, Sebastian A. ; Gaertner, Philipp ; Hirschmann, Dirk ; De Donck, Rik W.
Author_Institution :
ISEA, RWTH Aachen Univ., Aachen, Germany
Abstract :
PWM current source converters (CSCs) can directly replace traditional thyristor rectifiers in many industrial applications to improve power quality significantly. In this work, a design process for PWM current source rectifiers in the range of 1-10 MVA is developed. Different PWM techniques for CSCs are reviewed in the light of semiconductor losses and harmonic distortion of the modulated current. A design procedure for the AC-filter (LC-filter) is proposed that identifies filter designs that comply to emission limits for harmonic currents as well as thermal limits of the semiconductors. The design procedure is verified by detailed simulations. Results of a real-world case study are presented.
Keywords :
PWM power convertors; PWM rectifiers; harmonic distortion; induction heating; melting; power supply quality; thyristor applications; AC filter; LC filter; PWM current source converters; PWM current source rectifier; apparent power 1 MVA to 10 MVA; filter designs; harmonic distortion; high-power induction melting applications; industrial applications; power quality; semiconductor losses; semiconductor thermal limits; thyristor rectifiers; Electricity supply industry; Power quality; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Rectifiers; Switches; Thyristors; Topology; Voltage; Current source inverter (CSI); Design; Passive filter; Power Quality; Pulse width modulation (PWM);
Conference_Titel :
Power Electronics and Applications, 2009. EPE '09. 13th European Conference on
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-4432-8
Electronic_ISBN :
978-90-75815-13-9
