Practical guidelines for planning network connection of electric drive systems

Connection of high power medium voltage drives and motors has increased significantly over the last 25 years, the power level of individual drives in oil & gas applications is in excess of 50MW and multiple drives of high power can be connected to the same grid on either national or island networks. The paper will describe what the owner has to think about with combinations of different types of MV drives, induction, synchronous motors. How different topologies of drive require different considerations and what to think about for high speed motors, fixed speed bypass, redundancy, cooling and site layout restrictions.