Sensorless Control of Voltage Peaks in Class-E Single-Ended Resonant Inverter for Induction Heating Rice Cooker

Single-ended (SE) resonant inverters are widely used as power converters for high-pressure rice cooker induction, with 1200 V insulated-gate bipolar transistors (IGBTs) being used as switching devices for kW-class products. When voltage fluctuations occur at the input stage of an SE resonant inverter, the resonant voltage applied to the IGBT can be directly affected, potentially exceeding the breakdown voltage of the IGBT, resulting in its failure. Consequently, the resonant voltage should be limited to below a safety threshold—hardware resonant voltage limiting methods are generally used to do so. This paper proposes a sensorless resonant voltage control method that limits the increase in the resonant voltage caused by overvoltage or supply voltage fluctuations. By calculating and predicting the resonance voltage through the analysis of the resonance circuit, the resonance voltage is controlled not to exceed the breakdown voltage of the IGBT. The experimental results of a 1.35 kW SE resonant inverter for a high-pressure induction heating rice cooker were used to verify the validity of the proposed sensorless resonant voltage limiting method.

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A new half-bridge inverter topology with active auxiliary resonant circuit using insulated gate bipolar transistors for induction heating applications

PESC97. Record 28th Annual IEEE Power Electronics Specialists Conference. Formerly Power Conditioning Specialists Conference 1970-71. Power Processing and Electronic Specialists Conference 1972 ◽

10.1109/pesc.1997.616910 ◽

2002 ◽

Author(s):

Byoung-Kuk Lee ◽

Jin-Woo Jung ◽

Bum-Seok Suh ◽

Dong-Seok Hyun

Keyword(s):

Induction Heating ◽

Bipolar Transistors ◽

Resonant Circuit ◽

Insulated Gate Bipolar Transistors ◽

Inverter Topology

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Analytical estimation of breakdown voltage in insulated-gate bipolar transistors

Journal of Computational Electronics ◽

10.1007/s10825-021-01691-x ◽

2021 ◽

Author(s):

Chen Zhu ◽

Petru Andrei

Keyword(s):

Breakdown Voltage ◽

Bipolar Transistors ◽

Insulated Gate Bipolar Transistors ◽

Analytical Estimation

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Design, Analysis and Experimental Verification of the Self-Resonant Inverter for Induction Heating Crucible Melting Furnace Based on IGBTs Connected in Parallel

Electricity ◽

10.3390/electricity2040026 ◽

2021 ◽

Vol 2 (4) ◽

pp. 439-458

Author(s):

Borislav Dimitrov ◽

Khaled Hayatleh ◽

Steve Barker ◽

Gordana Collier

Keyword(s):

Induction Heating ◽

Experimental Verification ◽

Melting Furnace ◽

Bipolar Transistors ◽

Resonant Inverter ◽

Melting Crucible ◽

Wide Range ◽

Precise Analysis ◽

Reliable Design ◽

Installed Capacity

The object of this research was a self-resonated inverter, based on paralleled Insulated-Gate Bipolar Transistors (IGBTs), for high-frequency induction heating equipment, operating in a wide range of output powers, applicable for research and industrial purposes. For the nominal installed capacity for these types of invertors to be improved, the presented inverter with a modified circuit comprising IGBT transistors connected in parallel was explored. The suggested topology required several engineering problems to be solved: minimisation of the current mismatch amongst the paralleled transistors; a precise analysis of the dynamic and static transistors’ parameters; determination of the derating and mismatch factors necessary for a reliable design; experimental verification confirming the applicability of the suggested topology in the investigated inverter. This paper presents the design and analysis of IGBT transistors based on datasheet parameters and mathematical apparatus application. The expected current mismatch and the necessary derating factor, based on the expected mismatch in transistor parameters in a production lot, were determined. The suggested design was experimentally tested and investigated using a self-resonant inverter model in a melting crucible induction laboratory furnace.

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Closed loop control method of turn-on di/dt and turn-off du/dt for insulated gate bipolar transistors

2017 12th IEEE Conference on Industrial Electronics and Applications (ICIEA) ◽

10.1109/iciea.2017.8283099 ◽

2017 ◽

Author(s):

Xiang Du ◽

Quan Chen ◽

Guoli Li ◽

Cungang Hu ◽

Qiubo Ye

Keyword(s):

Closed Loop ◽

Control Method ◽

Bipolar Transistors ◽

Closed Loop Control ◽

Insulated Gate Bipolar Transistors ◽

Loop Control ◽

Turn On

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Simulation of Heating of an Oil-Cooled Insulated Gate Bipolar Transistors Converter Model

10.21236/ada428067 ◽

2004 ◽

Author(s):

Gregory K. Ovrebo

Keyword(s):

Bipolar Transistors ◽

Insulated Gate Bipolar Transistors

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Research on Small Square PCB Rogowski Coil Measuring Transient Current in the Power Electronics Devices

Sensors ◽

10.3390/s19194176 ◽

2019 ◽

Vol 19 (19) ◽

pp. 4176 ◽

Cited By ~ 1

Author(s):

Chaoqun Jiao ◽

Juan Zhang ◽

Zhibin Zhao ◽

Zuoming Zhang ◽

Yuanliang Fan

Keyword(s):

Power Electronics ◽

Printed Circuit Board ◽

Electronic Devices ◽

Rogowski Coil ◽

Bipolar Transistors ◽

Circuit Board ◽

Power Electronic ◽

Insulated Gate Bipolar Transistors ◽

Printed Circuit ◽

Internal Structures

With the development of China’s electric power, power electronics devices such as insulated-gate bipolar transistors (IGBTs) have been widely used in the field of high voltages and large currents. However, the currents in these power electronic devices are transient. For example, the uneven currents and internal chip currents overshoot, which may occur when turning on and off, and could have a great impact on the device. In order to study the reliability of these power electronics devices, this paper proposes a miniature printed circuit board (PCB) Rogowski coil that measures the current of these power electronics devices without changing their internal structures, which provides a reference for the subsequent reliability of their designs.

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Impact of the Wind Turbine on the Parameters of the Electricity Supply to an Agricultural Farm

Sustainability ◽

10.3390/su13137279 ◽

2021 ◽

Vol 13 (13) ◽

pp. 7279

Author(s):

Zbigniew Skibko ◽

Magdalena Tymińska ◽

Wacław Romaniuk ◽

Andrzej Borusiewicz

Keyword(s):

Power Plant ◽

Wind Turbine ◽

Wind Power ◽

Rural Areas ◽

Power Plants ◽

Reactive Power ◽

Supply Voltage ◽

Common Source ◽

Voltage Fluctuations ◽

The Impact

Wind power plants are an increasingly common source of electricity located in rural areas. As a result of the high variability of wind power, and thus the generated power, these sources should be classified as unstable sources. In this paper, the authors attempted to determine the impact of wind turbine operation on the parameters of electricity supplied to farms located near the source. As a result of the conducted field tests, variability courses of the basic parameters describing the supply voltage were obtained. The influence of power plant variability on the values of voltage, frequency, and voltage distortion factor was determined. To estimate the capacity of the transmission lines, the reactive power produced in the power plant and its effect on the value of the power factor were determined. The conducted research and analysis showed that the wind power plant significantly influences voltage fluctuations in its immediate vicinity (the maximum value registered was close to 2%, while the value required by law was 2.5%). Although all the recorded values are within limits specified by the current regulations (e.g., the THD value is four times lower than the required value), wind turbines may cause incorrect operation of loads connected nearby. This applies mainly to cases where consumers sensitive to voltage fluctuations are installed in the direct vicinity of the power plant.

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