Output details
15 - General Engineering
Swansea University
Load current observer based feed-forward DC bus voltage control for active rectifiers
In this paper, load current observer based feedforward control of DC bus voltage for a three-phase active rectifier is presented. Paper describes: (1) design of conventional proportional-integral (PI) current controller with fastest possible response, (2) the digital current control loop time-delay compensation, (3) design of dc-link-load current observer for identifying the dc load current without using actual current sensors and (4) the feedforward control of dc bus voltage based on designed current controller and dc link load current observer. This work was done in cooperation with the researchers from American Superconductor, one of the world leading companies in energy technologies.