AC, DC, BLDC Motor Drives
Technical Dialogue Session
Motor Drives II
motor- drive system, regenerative drives, Active Front End, DC Bus observer
Regenerative Active Front End "AFE" based motor-drive systems are a very important segment in the drives market. The main advantages of this segment is that it doesn't require braking resistor, provides an input current with significantly reduced Total Harmonic Distortion "THD", and a unity power factor. However, the AFE design as a critical part of the motor-drive system can be faced deteriorated performance if the system parameters are not well known. This paper is centered on introducing a DC bus observer algorithm that can be utilized to eliminate or significantly alleviate the challenges mentioned above.