Sliding Mode Pulsewidth Modulation (SMPWM) for nine-switch converter

Abstract

Nine-switch converter, which can provide two sets of three-phase outputs with independent amplitudes, phases and frequencies, has been proposed to replace two independent three-phase converters for cost-and size-reduced purposes. This paper proposes a hysteresis-modulation (HM) sliding-mode (SM) pulsewidth modulation (PWM) for the nine-switch converter. With the proposed HM-SMPWM, the phase currents of the two sets of outputs can track to their current references directly. To do this, decoupled sliding surfaces for the two sets of outputs are structured; based on the sliding surfaces, the proposed SMPWM are detailed explained; the operational range is also discussed; finally the experiments are carried out to confirm the effectiveness of analysis.

Sliding mode pulse‐width modulation of five‐leg converter for grid‐connected permanent magnet synchronous generator wind turbine

“…28 Therefore, SMC is a switching controller that can be designed as modulation technique to directly trigger the switching devices of power converter. This approach, called sliding mode pulse-width modulation (SMPWM), has been applied to three-phase inverter, 29 motor drive system, 30 nine-switch converter, 31 and conditioner. 32 In principle, the SMPWM design uses circuit analysis and different approaches to enforce sliding mode.…”