Development and Implementation of an Autotransformer Fasor Controller in Zigzag ( ADZ) on ATPDraw Software 4.0

This paper aims to present the performance of a computationally implemented model of a special autotransformer called ADZ [1]. This zigzag autotransformer allows mitigating the harmonic content produced by power converters as well as varying the power flow by means of controlling voltage phasors. Thus, due to its principle of operation that will be addressed here, ADZ can be considered as a FACTS device in dealing with power quality problems. Furthermore, the steps to the implementation of the model in the well-known ATPDraw (Alternative Transient Program), which can be followed so as to create other templates, will be summarized. Finally, the performance analysisof the implemented model are made through case studies.