A novel algorithm of space vector pulse width without sector calculation

Motor drive technology is the key to the development of electric vehicles, Voltage space vector pulse width modulation (SVPWM) method has been widely used due to its characteristics of convenient implementation and easy manipulation. Traditional space vector pulse width modulation (SVPWM) must calculation the sector, then deal with the complex calculations about the trigonometric function and irrational number, so the real-time control precision has been affected seriously. In this paper, through the thoroughly analyze of the principle of Voltage space vector pulse width modulation (SVPWM), a novel algorithm without sector calculation based on three vector synthesis has been proposed. By the synthesis of the two-axis components of the space vector in the two-phase stationary coordinate, it eliminates the sector and trigonometric calculations, makes the digital implementation easer and improves the accuracy of real-time control. The simulation shows the validity and feasibility of the algorithm.