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- Title
Implementation of two-output three-level series-resonant inverter for induction melting application.
- Authors
Watanyu Meesrisuk; Anuwat Jangwanitlert; Warachart Suwan-ngam
- Abstract
This study aims to present a two-output three-level series-resonant inverter together with an implementation and experiments for an induction melting application. A three-level circuit is applied for each branch of inverter in order to decrease the voltage stress on switching devices. A phase-shifted pulse-width modulation (PSPWM) with variable frequency control is applied for providing and maintaining a zero-voltage switching condition over a wide load range. In addition, the PSPWM could provide symmetrical output voltage and current waveforms that result in decreasing the THDv and THDi of output waveforms and harmonic losses of high-frequency transformer cores comparing to other PWM schemes. Finally, the prototype was designed, built, and tested to verify the consistency between the experimental results and theories of the proposed inverter.
- Subjects
RESONANT inverters; INDUCTION generators; ALTERNATING currents; PULSE width modulation; ELECTRICAL harmonics
- Publication
IET Power Electronics (Wiley-Blackwell), 2018, Vol 11, Issue 1, p129
- ISSN
1755-4535
- Publication type
Article
- DOI
10.1049/iet-pel.2017.0358