Power quality analysis using electromagnetic transients programs

Power quality is a subject of great concern for electric utilities and their customers, since disturbances can have a very adverse effect on customer equipment. Several techniques have been developed over the last decades to simulate and analyze power quality problems using a digital computer. The EMTP (ElectroMagnetic Transients Program) and like are among the most popular tools based on a time-domain method. The aim of this paper is to summarize the current status of the use of these tools in power quality studies. The paper includes an introduction to the solution methods and capabilities implemented in transients programs