Active magnetic bearing systems with standard drive technology for large turbo machines

In the Oil & Gas industry, the primary bearing is an oil sleeve bearing. Around two decades ago, active magnetic bearings (AMB) were introduced into the market but they never gained a relevant market share in large turbo machinery. This paper discusses how standard drive technology can be successfully adapted to control AMB systems. Furthermore, results of prototype testing with large turbo machinery and the advantages regarding commissioning and service are presented. The benefits of using standard drive technology for commissioning and service are discussed and results of a prototype test are presented.