I. INTRODUCTION
Switched reluctance motor is a new type of motor.Its
structure is simple, low cost, high fault tolerance, high
efficiency advantages .in the power transmission has a
broad development prospects. Switch reluctance motor is
widely used in production, usually used in electric state
(the first and third quadrants) drag load, but in the
following situations must be considered using the brake
mode, such as gantry planer, oil pumping unit, the above
several common load point is not only the motor running
in electric state, but also need for frequent braking state
(the second and fourth quadrants). Due to the symmetry
of the structure and theory in power generation and the
electric performance as superior.