Authors : P. Kavitha and B. Umamaheswari
Abstract: This study presents a Novel Control System for three phases grid connected, switched reluctance machine operated in both the motoring and generating modes. The converter configuration is worked out to provide ac to ac power conversion without a need for an intermediate energy storage element. The converter is configured with bidirectional switches in the matrix fashion along with the freewheeling diodes. It has more number of switches than the conventional matrix converter in order to facilitate the regeneration and its feedback to the grid. At any point of time, only two switches will be conducting and hence switching losses are kept to the minimum. To reduce harmonics and improve the power factor at the ac terminals, LC filter are used. The control scheme ensures supply of sinusoidal current while the machine draws excitation current also from the same ac supply. Complete switching model of the SRM along with converters is presented for simulation. The feasibility and the effectiveness of the proposed method are assessed for various dwell angles of the SRM and various speeds of the prime mover.
P. Kavitha and B. Umamaheswari, 2014. Bus Synchronized Matrix Converter Fed Switched Reluctance Machine in Motoring and Generating Modes of Operation. International Journal of Soft Computing, 9: 391-400.