2019 Pittsburgh AISTech

Modernization of MG Set and DC Drives to AC Drives-Based Solutions - A Power Distribution and Quality Perspective (Room 316)

As the metals industry prepares to meet the projected increase in local demand, many mills are upgrading their existing motor-generator (MG) set and DC drive-based main stand and coiler installations to AC drive-based solutions. This paper discusses the basics of MG sets, DC drives and AC drives from a power distribution and power quality perspective. Analysis is provided for evaluation of system capacity and limits along with solutions to comply with standards when replacing MG sets and DC drives with AC drive-based solutions. A successful execution model is presented along with lessons learned and improvements achieved.