High Speed Segmental Stator Type 4/3 SRM: Design, Analysis, and Experimental Verification

  • Hieu, Pham Trung (Dept. of Mechatronics Engineering, Kyungsung University) ;
  • Lee, Dong-Hee (Dept. of Mechatronics Engineering, Kyungsung University) ;
  • Ahn, Jin-Woo (Dept. of Mechatronics Engineering, Kyungsung University)
  • Received : 2016.06.29
  • Accepted : 2017.05.19
  • Published : 2017.09.01


This paper presents a design of a 2-phase segmental stator type 4/3 switched reluctance motor (SRM) for air-blower application. The air-blower requires only one direction rotation, high rotor speed without torque dead-zone. In order to satisfy the requirements of the load, the rotor of the 4/3 proposed SRM is designed with wider rotor pole arc and non-uniform air-gap is applied on the rotor shape. With a special rotor structure, the motor generates a wider positive torque region and has no torque dead-zone. The stator of the proposed SRM is constructed with two segmental C-cores, and there are no magnetic connections between 2 C-cores. The flux follows in a short closed loop in each C-core and has no reversal flux in the stator. The static and dynamic characteristics of the proposed motor are analyzed by the finite element method (FEA) and Matlab-Simulink, respectively. In order to verify the design, a prototype of the proposed motor has manufactured for laboratory test. The performance of the proposed motor is verified by the simulation and experimental results.


Switched Reluctance Motor (SRM);4/3 SRM;Non-uniform air gap;Short flux path;Segmental stator


Supported by : Korea Institute of Energy Technology Evaluation and Planning (KETEP)


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