Implementation of a iUPQC control scheme for ensuring an improved compensation performance

The unified power quality conditioner has been considered one of the most complete solutions to power quality related issues. Thus, the development of control strategies that improve its performance has gained increasing research interest. This paper presents an enhanced control scheme for ensuring an improved compensation performance for the dual unified power quality conditioner (iUPQC). The basics of the control implementation, the reference generators and the control loops specifications of both converters are discussed in detail. Besides, the design step of the controllers is carefully explained in order to allow its reproduction. Furthermore, the complete control scheme is validated through experimental results using a three-phase three-wire iUPQC prototype.