Dietmar Stoiber

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.

Industrialization of AMB Systems With Standard Drive Technology

Around two decades ago, active magnetic bearings (AMBs) were introduced into oil and gas applications but never gained any relevant market share in large turbomachinery drive trains. This paper discusses how standard drive technology from machine tool applications can be used to control AMB systems. As a proof of the concept, results of prototype testing with a 5-MW induction motor are presented.

Aktive Magnetlagerung für Turbomaschinen auf Basis von Standardantriebstechnik

Zusammenfassung Dieser Artikel beschreibt, wie zuverlässige Standardantriebsregelungstechnik und Standardleistungsteile, die in Werkzeugmaschinenanwendungen in hoher Stückzahl zum Einsatz kommen, genutzt werden können, um Magnetlager in Turbomaschinenanwendungen anzusteuern. Als Nachweis für die Tragfähigkeit des Ansatzes werden Ergebnisse von Prototypentests mit einem 5-MW-Asynchronmotor sowie eine Kundenprototypenanwendung mit einem 23-MW-Kompressorstrang präsentiert.