This paper presents a torque ripple reduction method of permanent magnet synchronous
motors (PMSM) driven by an indirect matrix converter (IMC) based on torque predictive
control. The indirect matrix converter guarantees a sinusoidal waveform of the input–
output currents and high-power density. In addition, this architecture does not have large
capacitors in the DC-link. As the indirect matrix converter has these advantages, it is used
in various applications such as in railway cars and electric vehicles. Currently, various
torque control methods for permanent magnet synchronous motor drives using indirect
matrix converters are being actively studied. In this paper, a torque ripple reduction method
of permanent magnet synchronous motor driven by an indirect matrix converter based on
torque predictive control is proposed. The improved torque predictive control method can
decrease the ripple of the output current and torque in the low- and high-speed load ranges.
In addition, this method is able to enhance the dynamic torque response relative to using
the conventional torque predictive control. The effectiveness of the proposed control
method is verified via simulation and experimental results.
