The paper presents the essential conditions for implementing the fault tolerant control of the Switched Reluctance motor drive system, such as the structure of the reluctance motor, the topology of the power converter, the rotor position detector, the current detector and the control strategies. The experimental tested results of the developed prototype with the fault tolerant control are given.

The paper presents the developed design and simulation software package of Switched Reluctance motor drives for Windows 9x in Chinese. The main interfaces such as the start interface, the 2-D finite element electromagnetic field calculation interface, and the power converter main circuit networks simulation interface are given. The function of the softwarepackage are introduced, such as the 2-D finite element electromagnetic field calculation for seven structure Switched Reluctance motor, the nonlinear simulation of the ten power converter main circuits with the four variable speed control strategies, the display and printing of the pictures.

The paper presents the three types of magnetic-flux paths at the condition of single-phase excitation and the two types of magnetic-flux paths at the condition of double-phase excitation while one phase winding is installed as NSNS. The calculated torque-angle characteristics of the machine are given with the different magnetic-flux paths.1

The paper presents the principles of two quadrants control, such as the traction control and regenerative braking control. The configuration of the Switched Reluctance motor drive for application in electric drive bicycle, such the schematic diagram of the system, the motor, the rotor position detector, the control logic for the operation at two quadrants and the two quadrants control scheme, are given. The comparison of the two types of the three-phase motors, such as the 12/8 structure motor and the 6/8 structure motor, at the same average electromagnetic torque in the turn numbers of per stator pole coil, in the resistance of the stator phase windings, and in the basic output frequency of the power converter, are made. Tested results of the developed prototype with the three-phase 12/8 structure motor, in the travel course with once charging, in the velocity, in the output torque, in the output power, in the systematic efficiency and in the peak value of phase current, are presented.