Open AccessEqual Losses control strategy for all switches of intermediate frequency heating power supply
Author(s) -
Deng Rui,
Qingliang Qin
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1449/1/012088
Subject(s) - power (physics) , reliability (semiconductor) , bridge (graph theory) , inverter , control theory (sociology) , controller (irrigation) , control (management) , waveform , power control , computer science , electrical engineering , engineering , voltage , physics , medicine , quantum mechanics , artificial intelligence , agronomy , biology
The energy loss of the switches of the lead legs and lag legs during the operation of the intermediate frequency heating power supply using the traditional full bridge control method has a certain difference, and the greater the power of the device, the more obvious the difference. This phenomenon seriously affects the reliability of high-power intermediate frequency heating power supplies. In this paper, the original full-bridge inverter drive is adjusted, and the conditions for implementing ZVS are analyzed. Finally, the equal losses control strategy for all switches is achieved by using the waveform generated by the FPGA controller.