Custom power devices: an interaction study

This paper presents a simulation study about the coordination and interaction of advanced power electronic devices working in close electrical proximity. In particular, three major power quality devices (PQDs)-an advanced static VAR compensator, a dynamic voltage restorer, and a high-speed transfer switch as well as their combined performance-are modeled and studied in detail using ATP-EMTP. The paper addresses potential problems related to the PQD´s combined operation, in addition to coordination issues. Comparison between simulation results and field measurements of individual PQD´s are also presented.