The overmodulation strategy plays an important role in the field weakening control for high-
speed permanent magnet synchronous motor (PMSM) drives. However, the voltage jumps …

Permanent magnet synchronous motor (PMSM) drives equipped with slim film capacitors
have many advantages, including longer lifetime, smaller volume, and lower cost. However …

The overmodulation-based nonlinear voltage extension could increase the maximum output
torque of the induction motor (IM) in the field-weakening (FW) region. Since the voltage …

Most railroad cars employ a natural ventilation cooling method. For this reason, severe
problems occur in the control devices for the railroad cars due to the heat generated by the …

An overmodulation method is proposed for an in-wheel system where two motors are
coupled to a sum gear. In the dual-motor dual-inverter single shaft systems, the output …

When performing weak flux control to drive a permanent-magnet synchronous motor at high
speed, the efficiency is lowered because the copper loss increases as the negative D-axis …

The overmodulation (OVM) strategy can improve the modulation index (MI) of the output
voltage and expand the speed and torque range in the field weakening (FW) region …

In this paper, a novel pulse-width-modulation (PWM) strategy to operate in overmodulation
range with low switching-to-fundamental frequency ratio is developed for permanent magnet …

With a single shunt resistor, it is possible to sense the phase currents, although some dead
regions exist around vertices of the voltage hexagon. In this article, an overmodulation …

The six-step operation is widely used with its advantages in voltage utilization increased by
10.27% without boost circuits. However, the six-step operation causes nonideal low-order …