Static overmoduration strategies of 2-phase full bridge inverter

In this paper, the static overmodulation is proposed for the 2-phase full bridge inverter. The overmodulation strategy increases a fundamental output voltage and improves a voltage utilization up to the maximum in the overmodulation range. The linear modulation range and the static overmodulation range are defined in the 2-phase full bridge inverter. The overmodulation strategies which increase a voltage utilization until the 4-step mode by a linearization of the output voltage in the overmodulation regions are proposed. To maintain a linearity of the relation between a reference voltage and a fundamental output voltage, this paper suggests a compensated voltage, whose magnitude or phase is modified to the proposed control scheme. Simulation and experiment results demonstrate the effectiveness of the proposed algorithms.