Improving Switching Frequency Variation of Hysteresis Current Controlled VSI Fed Induction Motor Drive | ||||
The International Conference on Electrical Engineering | ||||
Article 26, Volume 9, 9th International Conference on Electrical Engineering ICEENG 2014, May 2014, Page 1-18 PDF (405.07 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/iceeng.2014.30381 | ||||
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Authors | ||||
E. E. El-kholy1; F. M. Abel Kader2; Ahmed E. kalas3; M. El-shahat Dessouki4 | ||||
1Electrical Engineering Department, Faculty of Engineering, Menoufiya University, Egypt. | ||||
2Electrical Engineering Department, Faculty of Engineering, Port Said University, Egypt. | ||||
3Dr., Electrical Engineering Department, Faculty of Engineering, Port Said University, Egypt. | ||||
4Electrical Engineering Department, Faculty of Engineering, ,Rabigh, King Abdul Aziz University,Saudi Arabia. | ||||
Abstract | ||||
Switching frequency variation over the entire operating speed range of an induction motor (IM) drive is the major problem associated with conventional two-level threephase hysteresis controller as well as the space phasor based pulse width modulation (PWM) hysteresis controller. This paper presents a new variable band hysteresis current controller for controlling the switching frequency variation in the two-level PWM inverter fed IM drives for various operating speeds. A novel concept of online variation of the band based on both the instantaneous load current and current change for each sampling period is presented to determine the hysteresis band. A performance comparison of the proposed with conventional hysteresis current controller for IMdrive is provided in simulation. The proposed drive system is also implemented in real-time using DSP board DS1104 for a laboratory 1.5 hp motor. Comparative simulation and real-time results verify the feasibility of the proposed scheme and demonstrate that the proposed method has obtained constant switching frequency and improved the performance of the drive system. | ||||
Keywords | ||||
Switching frequency; Hysteresis current controller (HCC); Induction Motor (IM) | ||||
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