This paper presents a discontinuous pulse width modulation (DPWM) method to reduce switching losses in an indirect matrix
converter (IMC) drive. The IMC has a number of power semiconductor switches. In other words, it consists of a rectifier stage and an
inverter stage for AC/AC power conversion, which are composed of 12 and 6 switching devices, respectively. Therefore, the switching
devices of the IMC suffer from high switching losses in the IMC drives. Various topologies to reduce switching losses have been
studied by eliminating a number of switches from the rectifier stage. In this study, in contrast to prior research, a DPWM method is
presented to reduce the switching losses of the inverter stage. The effectiveness of the proposed method to reduce switching losses
in IMC drives is verified by simulations and experimental results.
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