Abstract
According to the actual acceleration index requirements, a high-speed large-thrust linear induction motor for accelerating the system was designed. Due to the variable pole pitch design, the variation of the pole pitch plays a key role in the design, and the influence of the variation of the pole pitch on the output of the electromagnetic thrust is analyzed. The variable pole distance double-sided linear induction motor is used as the acceleration drive. It does not need to detect the speed and displacement. The primary winding current frequency is constant. As the speed increases, it will not be limited by the inverter frequency, and will not increase the motor loss. The frequency is constant and the control is optimized and simpler.
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