| Abstract |
This paper describes harmonic evaluation of three phase carrier-based PWM inverters, in
which the harmonic distortion determining factor (HDDF) is used as the basis. HDDF represents the
intrinsic spectral property of individual PWM methods. Nine PWM methods are compared and
evaluated. It is concluded that in terms of RMS values of the harmonic currents or torque ripples of
driven motors, the third harmonic injected sine PWM, the two-phase modulation PWM and the space
vector PWM methods exhibit excellent performance. |
