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Analysis, simulation and hardware implementation of singles witch power amplifier for Active Magnetic Bearing (AMB) system

Debnath Sukanta, Biswas Pabitra Kumar, Laldingliana Jonathan

Journal of Power Technologies

2020

Vol. 100, nr 4

308--314

Active Magnetic Bearing is the advancement of habitual technology and is used to increase the rotational speed. AMB isusing power electronics drives, which is the key features of this technology. In this paper, a simple and cheap converter with reduced switch is simulated and implemented in hardware for the validation of simulation result is presented. The principle of the active magnetic bearing and power amplifier is introducedand the generation of pulse is also described. Then, result of simulation and hardware output is compared. Based on the output of hardware setup simulation result is validated. With the help of this amplifier cheapest and better control for active magnetic bearing can be achieved.

Numerical model of the axial magnetic bearing with six cylindrical poles

Sikora Bartłomiej Marian, Pilat Adam Krzysztof

Archives of Electrical Engineering

2019

Vol. 68, nr 1

195--208

The paper presents a numerical model of the novel design of the axial magnetic bearing with six cylindrical poles. The motivation behind this idea was to eliminate vibra- tions in rotating machinery due to the axial load. Common conception of such a bearing provides a single component of the electromagnetic force, which is not enough to reduce transverse and lateral vibrations of the armature. The proposed design allows for avoiding wobbling of the disc with the use of a few axial force components that are able to actively compensate the axial load and stabilise the disc in a balanced position. Before a real device is manufactured, a virtual prototype should be prepared. The accurate numerical model will provide essential knowledge about the performance of the axial magnetic bearing.