Designing a High Efficiency Igbt Series Resonant Inverter Using Fuzzy Logic Controller
نویسندگان
چکیده
-This paper analyzes a high-power (50 kW) high frequency (150 kHz) voltage-fed inverter with a seriesresonant load circuit for industrial induction heating applications, which is characterized by a full bridge inverter made of insulated-gate bipolar transistor and a power control based on pulse density modulation (PDM). This power control strategy allows the inverter to work close to the resonance frequency for all outputpower levels. In this situation, zero-voltage switching and zerocurrent switching conditions are performed, and the switching losses are minimized. Results are verified experimentally using a prototype for induction hardening applications.
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