Analysis and design of a new converter topology for switched reluctance motor drives

An energy-efficient switched reluctance motor drive (SRMD) converter configuration is proposed. The proposed converter eliminates the need for a regenerative brake. Energy stored in a previously excited winding is recycled into the winding of the phase which is to be excited next. Since the rate of change of inductance with rotor position is positive in both phases during this period, the recycled energy is directly converted into useful mechanical energy (positive torque during forward motoring). Closed-form expressions for determining device stresses and ratings at any operating point are given. A steady-state analysis to obtain key waveforms of the SRMD fed from the proposed converter is described, and simulation results are verified by comparison with experimental results.<>