Dual Output and Dual-Frequency Resonant Inverter-based Induction Heating Using ADC Control

Abstract

A dual output dual-frequency (DODF) resonant converter-based AC-AC induction heating (IH) by using asymmetrical duty cycle (ADC) control is presented in this paper. The proposed scheme gives two outputs with independent power control, which improves input power factor and achieves zero voltage switching (ZVS) with a wide range of operations. It includes two pairs of two half-bridge series resonant converters, each pair having one common capacitor along with various resonant frequencies. These converters are modulated with the ADC control scheme to obtain smooth operation. The proposed topology doesn’t use the DC stage; it is directly connected to the power supply to produce high-frequency AC output. With the use of direct connection, the converter components are reduced when compared to conventional converters. There will be a reduction in voltage drop, power losses, cost of the converter and which will result in improved efficiency. Simulation results are obtained from PSIM 11.1.7 software. This scheme controls two different loads with an efficiency of 98.25%.

KEYWORDS:

• AC-AC converters
• Asymmetrical duty cycle control
• Dual frequency converter
• Eddy currents
• Independent Power control
• Resonant converter
• Voltage Stress
• Zero voltage switching

DISCLOSURE STATEMENT

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

Kumaraswamy A

Kumaraswamy A received the BTech in electrical and electronics engineering from JNTU Hyderabad, India, and masters in power electronics from JNTU Hyderabad India. He is currently pursuing PhD in electrical engineering from the National Institute of Technology, Jamshedpur, India. His research interest includes high-frequency resonant inverter and induction heating. Corresponding author. Email: [email protected]

Ananyo Bhattacharya

Ananyo Bhattacharya received the BTech in electrical engineering from West Bengal University of Technology Calcutta, India, MTech in electrical engineering from University of Calcutta, India, and the PhD degree from the Indian Institute of Technology (Indian School of Mines), Dhanbad, India in 2010, 2012, and 2017, respectively. Currently, he is an assistant professor in the Department of electrical engineering, National Institute of Technology, Jamshedpur, India. His research interests include highfrequency inverter, induction heating, and wireless power transmission. Email: [email protected]

Pradip Kumar Sadhu

Pradip Kumar Sadhu received the BS, MS, and PhD degrees in electrical engineering from Jadavpur University, Kolkata, India, in 1997, 1999, and 2002, respectively. He is currently a professor at the Department of Electrical Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, India. He possesses 30 years of teaching and research experience. He has four patents and several patents are under process. He has several journal and conference publications at the national and international level. His current areas of interest are power electronics applications, application of high-frequency converter, energy-efficient devices, energy-efficient drives, computer-aided power system analysis, condition monitoring, solar energy, renewable and sustainable energy, and lighting & communication systems for underground coal mines. Email: [email protected]