Multi-phase power factor correction for domestic induction heating
- Autores: Mario Pérez Tarragona
- Directores de la Tesis: Oscar Lucia Gil (dir. tes.), Héctor Sarnago Andía (dir. tes.)
- Lectura: En la Universidad de Zaragoza ( España ) en 2020
- Idioma: español
- Programa de doctorado: Programa de Doctorado en Ingeniería Electrónica por la Universidad de Zaragoza
- Materias:
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- Resumen
Induction heating (IH) is quickly evolving towards higher performance systems thanks to advances in enabling technologies such as power electronics, magnetic component design and digital control. In this context, domestic induction heating is progressing towards future applications with enhanced flexibility, higher output power and efficiency, and improved reliability and cost.
Considering this background, this dissertation explores the use of power factor corrector (PFC) rectifiers that provide significantly higher performance for future domestic IH systems. Nowadays, state-of-the-art of domestic IH technology relies on the use of a small dc-link capacitance with a high dc-link voltage ripple to avoid the use of PFC stages in cost-effective implementations. By contrast, this dissertation proposes the use of single/multi-phase PFC rectifiers to obtain substantial advantages such as the increased output power, lower voltage ripple and higher dc-link voltage leading to higher inverter efficiency, simplified multi-phase and multi-inductor systems, and improved EMC performance, among others.
The main contributions of this dissertation include an in-depth review of IH technology and PFC rectifier systems, the proposal of a single-phase and a multi-phase PFC rectification topologies for new domestic IH applications, and the proposal and analysis of a complete set of modulation strategies. Furthermore, in order to experimentally verify these proposals, a complete experimental test-bench has been designed and implemented including an ad-hoc three-phase high-performance power supply, a single-phase PFC rectifier topology, a multi-phase PFC rectifier topology, and an IH ZVS matrix multi-inverter. The obtained analytical and experimental results have been deeply analyzed according to the most relevant figures of merit, proving the feasibility of the proposed converter topologies and modulation strategies, and establishing the main selection and design criteria. As a conclusion of this dissertation, PFC rectifier systems are proposed as a promising technology for future high performance domestic IH systems.
This PhD dissertation has been developed within the collaboration agreement between the BSH Home Appliances Group (BSH) and the Group of Power Electronics and Microelectronics (GPEM) of the University of Zaragoza, Spain, in the framework of the BSH-UZ Innovation Chair.
