4 8/6 SRM 4 phase 8/6 Switched Reluctance Motor for low voltage fan drive

摘要

In the present invention, the structure and design of three kinds of SRMs, i.e., 6/4, 12/8 and 8/6 SRM, which are suited to the requirements of the cooling fan device, are proposed, and an optimal motor design is proposed. For this purpose, in order to evaluate the performance of these motors according to the present invention, the inductance, torque, and efficiency were compared. In the present invention, the dimensions of the SRM were predicted by a predetermined constraint equation, and parameters were determined by selecting a predetermined value according to performance through a repetitive process of steady state. In addition, the present invention analyzes the influence of motor design parameters on motor performance, and uses finite element analysis (FEA) and transient analysis to characterize design requirements. The present invention is applicable to a low-voltage fan drive 4 that is used when a requirement for a vehicle cooling fan motor is a rated output of 600 W, a torque of 1.67 Nm, a speed of 2800 rpm, a total weight of 1.7 kg, a current of 50 A, an input voltage of 12 V, The stator diameter is 105 mm, the rotor diameter is 61 mm, the stack length is 35 mm, the pore is 0.25 mm, the number of phases is 4, the stator pole is 21 °, the rotor pole is 23 °, the shaft diameter is 10 mm, 284 mm. / RTI In the present invention, 6/4, 12/8, and 8/6 SRMs suitable for automotive cooling fan devices were designed and simulated, and simulation and experimental results show that these three types of motors can correspond to equipment requirements, It can be seen that the 8/6 SRM with four poles with eight stator poles and six rotor poles has better performance efficiency under the same conditions.