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Voltage Space Vector Averaging Technique for Two PMSMs Connected in Parallel

Ahmad Asri Abd Samat 1, Dahaman Ishak 2, and Shahid Iqbal 2
1. Faculty of Electrical Engineering, Universiti Teknologi Mara, 13500 Permatang Puah, Pulau Pinang
2. School of Electrical and Electronic Engineering, Universiti Sains Malaysia
Abstract—Application of numerous motors driving by only a one inverter attract more interest since several motors can be connected in parallel and only driven by one three-phase inverter. The benefit is that it will give more impact on cost performance, lightness and compactness. In this project, we focus on driving two PMSMs connected in parallel using only one three-phase inverter. Both voltage space vector of the two motors are average in order to achieve the synchronisation between these two motors even their load are different. Furthermore, the speed for both motors was controlled by using field oriented control method. This drive system has been designed and then simulated by Matlab/Simulink software. This drive system has been tested at various speeds under balanced and unbalanced load conditions.

Index Terms—parallel connected drive, permanent magnet synchronous motor, voltage space vector averaging technique

Cite: Ahmad Asri Abd Samat, Dahaman Ishak, and Shahid Iqbal, "Voltage Space Vector Averaging Technique for Two PMSMs Connected in Parallel," International Journal of Electrical Energy, Vol. 1, No. 4, pp. 234-238, December 2013. doi: 10.12720/ijoee.1.4.234-238
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