ICONE15-10502 STUDY OF MAGNETIC MATERIAL FOR MAGNETIC BEARING OF THE 10MW HIGH TEMPERATURE GAS-COOLED REACTOR

抄録

The Active controlled Magnetic Bearing (AMB) is used in the system of 10 MW High Temperature Gas Colder Reactor (HTR-10) plant with direct helium turbine cycle as its special strongpoint. Appropriate magnetic material and its working point are keys to get a well performed AMB, which is in need of parameters of magnetic material. This paper tests the dynamic properties of several soft magnetic alloys including silicon steel lamination with different thickness, permalloy and iron-cobalt alloy in different conditions. This paper studied the properties of soft magnetic alloys and chose bearing and sensor materials for AMB used in HTR-10 project, and then appointed the working points. Those data are the foundation to optimize the configuration of bearings and sensors and gain an AMB with excellent properties.