| Abstract |
With a three phase mains interface the PWM -rectifier is a high performance solution to reduce line current distortion and to provide regenerative braking capability in motor drive applications.
This paper introduces a space vector based control strategy, which is used to modify a standard U/F-controlled inverter to work as a PWM-rectifier. Compared to the conventional phase angle/magnitude control strategy, this new space vector based control strategy gives much faster response and permits smaller intermediate capacitor due to tight power balance. Using the proposed strategy, the complete drive can be constructed using two standard motor inverters, and
a small LCL-type line filter. After installation, the line bridge is configured by simply downloading
the software. |
