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http://dx.doi.org/10.5762/KAIS.2018.19.5.72

Comparative Analysis of Driving Methods According to Electrical Conduction Angle of Inverter for PMSM  

Lee, Seung-Yong (Division of Electrical, Electronic and Control Engineering, Kongju National University)
Yoon, Duck-Yong (Division of Electrical, Electronic and Control Engineering, Kongju National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.19, no.5, 2018 , pp. 72-81 More about this Journal
Abstract
In this study, the sinusoidal-wave driving method, six-step driving method, and twelve-step driving method, which can be used in an inverter for permanent-magnet synchronous motors, were simulated, and the results were compared to review their operating performance. These driving methods were classified according to the electrical conduction angle and phase current of the motor. Conventionally, only the transition control technique between the sinusoidal-wave driving method and six-step driving method was studied for the efficiency of the inverter. In this paper, however, comparative analysis was focused on a variety of transition control applications to use the advantages of each driving method. For this purpose, computer simulations for these driving methods were carried out to obtain the motor torque, speed control characteristics, and THD of the motor phase currents. As a result, the sinusoidal-wave driving method showed the best performance in all respects. The six-step driving method has better speed control characteristics than the twelve-step driving method, and the twelve-step driving method has a lower THD of the motor phase currents than the six-step driving method.
Keywords
PMSM; SPMSM; Sinusoidal-Wave Driving Method; Square-Wave Driving Method; Six-Step Driving Method; Twelve-Step Driving Method; Speed Control Characteristics;
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