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This paper presents a comparison of two control strategies between the fixed-frequency method and the variable-frequency method for output power control of a full-bridge resonant inverter in domestic induction cooking to address an issue of the distorted load current due to low-quality-factor load. The control strategies are based on the asymmetrical control using positive half-cycle control while...
This paper presents the prototype of the series resonant inverter as the full-bridge inverter with the series resonant load as the induction cooking load for the electrical education laboratory of the faculty education of the RMUTT. The inverter is controlled by the microcontroller (MCU) as dsPIC30F2010 that it is three schemes of the gate-signal such as the vary frequency modulation (VFM), the asymmetrical...
This paper presents a combined pulse density modulation (PDM) and asymmetrical voltage cancellation (AVC) control for induction cooking appliances. The average output power can be adjusted by the varying output voltage waveform, which achieves the zero-voltage switching (ZVS) condition, and reduced the power losses on the IGBT switches. The proposed control improves the efficiency at the low power...
This paper presents a digital implementation of power control for induction cooking appliances with domestic low-cost vessels. The proposed control strategy is based on the asymmetrical duty-cycle with automatic switching-frequency tracking control employing a digital phase locked-loop (DPLL) control on high performance microcontroller. With the use of a phase locked-loop control, this method ensures...
This paper presents an improved dual output full-bridge series resonant inverter with asymmetrical voltage-cancellation (AVC) control for cooking appliance. The important advantage of the proposed control is that the output power can be adjustable independently while achieving the zero-voltage switching (ZVS) operation. The power loss analysis on the insulated gate bipolar transistor (IGBT) and an...
This paper presents the use of stochastic differential equations (SDEs) to account for effects of network traffic on the communication of measurement data from a DC-DC Buck-Boost converter to a remote control center. The work is motivated by the need to account for observability of system states when a converter or system of converters is remotely monitored through a communication network comprised...
The variable-frequency asymmetrical voltage-cancellation (VFAVC) control is proposed in this paper to control the output power for a series resonant load with a full-bridge inverter for home appliance as induction cooking. The asymmetrical voltage-cancellation is used for controlling the output power. With the low quality factor loads, a fixed-frequency control might lead to non-zero-voltage-switching...
This paper presents a power control strategy of the full-bridge series resonant inverter based on the asymmetrical voltage-cancellation control with variable-frequency in induction cooking appliances with a load of low Q factor on the domestic markets. The switching frequency of inverter is suitably operated higher than the resonant frequency under zero-voltage-switching (ZVS) condition. The proposed...
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