Abstract
In the central-limit control (CLC), the multiloop controls are employed to regulate the output voltage and track the central weighted current, thus equalizing the output current of each converter module (CM). The current distribution error (CDE) between the output current of each CM is used as a criterion in judging system performance. The prediction and simulation results of this control scheme are illustrated. Furthermore, when incorporated with the maximum current limit, the proposed control method can determine the number of required converters in the active state for each load condition. As the result, the efficiency of a system can be increased significantly. A comparison between the performances of a system under master-slave control (MSC) and CLC is given. © 1992 IEEE