So a novel high-frequency power inverter with a variable frequency provision has been developed using ferrite core transformer, solid state components and power switches such as MOSFETs are used for heating a liquid non-linear load-resistance ( R) of liquid-food conducting material in the laboratory.
High-Frequency Inverter Technology The full bridge (S1...S4) generates a high-frequency square-wave signal with 40 – 50 kHz, which is transmitted via the HF transformer (Tr1). The bridge rectifiers (D1...D4) convert the square-wave signal back to DC voltage and store it in the intermediate circuit (L1+C2).
To the traditional high-frequency square wave injection method, considering that the current-loop control is digital, the sampling current of each PWM cycle is linear, so the current change during the zero-vector action stage is always ignored.
to operation at very high frequencies and to rapid on/off control. Features of this inverter topology include low semiconductor voltage stress, small passive energy stora e requirements, fast dynamic response, and good design flexibility. The structure and operation of the pr posed topology are described, and a design procedure is introduced. Exp
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Using a variable high frequency power source in place of a traditional alternating current source (50/60Hz) is suggested for Ohmic heating (OH) to reduce electrode corrosion in …
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In view of this, a novel high frequency square wave push-pull inverter using ferrite core transformer with a variable frequency provision has been developed using solid state …
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We are converting DC to AC (Square wave) with the help of switching device like MOSFET and then again converting it into DC by the process of rectification by high frequency …
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The buck–boost inverter can convert the PV module’s output voltage to a high-frequency square wave (HFSWV) and can enhance maximum power point tracking (MPPT) …
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Abstract: In this paper, a new sensorless control scheme with the injection of a high-frequency square-wave voltage of an interior permanent-magnet synchronous motor …
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This paper proposes a high-frequency (HF) square-wave voltage injection method to identify the parameters for three-phase permanent-magnet synchronous motor (PMSM) …
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ABSTRACT The High-Frequency Inverter is mainly used today in uninterruptible power supply systems, AC motor drives, induction heating and renewable energy source …
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An analysis of pulsewidth-modulation inverter nonlinearities influencing high-frequency carrier-signal voltage injection for saliency-tracking-based rotor/flux position …
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ESONANT inverters suitable for high frequency oper-Ration have numerous applications, including as radio-frequency power amplifiers [3]–[5], induction heating and …
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According to the different injection signal forms, high-frequency signal injection methods can be divided into the rotating sinusoidal injection method, the pulse vibration …
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