LOAD SHARING WITH PARALLEL INVERTERS FOR INDUCTION MOTOR DRIVE APPLICATION
Journal Title: International Journal of Electrical and Electronics Engineering Research (IJEEER) - Year 2017, Vol 7, Issue 1
Abstract
Multi-level inverters use is becoming more in common these days due to its advantages over conventional inverters. Inverters driven motor drives are very much promising method for efficient operation increasing cost effectiveness. This paper discusses the sharing of induction motor drive load by two parallel multi-level inverters. Parallel inverters driving a load can eventually reduce the rating of devices and hence losses of the system. Faults are common in occurrence due to the presence of switching cells in inverters. Load sharing using parallel inverters connected to a common load can increase the load capacity but this paper is intended to study the performance of each of the parallel inverters with its characteristics and induction motor load characteristics which might be useful in case of any faulty condition in inverters keeping the load capacity unchanged. With two parallel inverter concept of driving induction motor, interfacing inductor sizing is reduced. Diode clamped inverter topology was used for multi-level inverter and was controlled with asymmetrical PWM technique to trigger switches in inverter. The proposed work was simulated using MATLAB/SIMULINK software and results were presented showing characteristics with parallel placed inverter concept of each inverter individually and performance with a single inverter concept.
Authors and Affiliations
M. DILIP KUMAR, S. F. KODAD, B. SARVESH
Keywords
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