Minimization of the switching losses in high power induction furnaces using an analog state feedback controller | ||
| The Modares Journal of Electrical Engineering | ||
| Article 3, Volume 15, Issue 2, 2015, Pages 14-20 PDF (996.04 K) | ||
| Authors | ||
| Soheil Khosrogorji1; Sepehr Soori1; Mahdi Pourgholi* 2 | ||
| 1دانشجوی کارشناسی ارشد- دانشگاه شهید بهشتی، دانشکده مهندسی برق، گروه کنترل | ||
| 2Department of Electrical and Computer Engineering, Shahid Beheshti University, Tehran, Iran | ||
| Abstract | ||
| Due to the high efficiency and low switching losses of resonant power convertors in comparison with switching convertors, nowadays there is a growing trend towards these convertors. However, because of the high frequency of switching in such convertors, it is quite difficult to present an efficient control method. In this paper, based on the state feedback method and using pole placement technique a control strategy is developed which controlling delay time in the converter’s switching to minimize losses in the induction and hardening furnaces. In the propose method, the input voltage is isolated from output load. Moreover, fewer number of elements are employed in the control circuit which will be caused lower costs and small dimensions for control system. As a result, the proposed controller is more economical in comparison with the conventional ones. To show the effectiveness of propose controller, simulation circuits using PSIM software and an experimental setup are provided and the results are reported | ||
| Keywords | ||
| Switching losses minimization; Induction furnace; State feedback; SRC converter | ||
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