APPARATUS TO COMPENSATE ROTOR POSITION ERROR CAUSED BY UNBALANCE IN ROTOR SYSTEMS USING ELECTROMAGNETIC BEARING,申请号KR20080082698-传众专利搜索

APPARATUS TO COMPENSATE ROTOR POSITION ERROR CAUSED BY UNBALANCE IN ROTOR SYSTEMS USING ELECTROMAGNETIC BEARING

申请公布号：KR100931003(B1)

申请号：KR20080082698

申请日期：2008.08.25

申请公布日期：2009.12.10

申请人：

KOREA INSTITUTE OF MACHINERY & MATERIALS

发明人：PARK, CHEOL HOON;CHOI, SANG KYU;HAM, SANG YONG;LEE, SUNG WHEE;YUN, DONG WON

分类号：F16C32/04;F16C25/04

主分类号：F16C32/04

摘要：PURPOSE: An apparatus compensating rotor position error caused by unbalance in a rotor using an electromagnetic bearing is provided to minimize the amount of electrical energy consumption used in a magnetic bearing by controlling the position error of rest components except for position error by the unbalance of the rotor among the whole position error. CONSTITUTION: An apparatus compensating rotor position error caused by unbalance in a rotor using an electromagnetic bearing comprises following steps. An r(k) signal which is home location of the X,Y direction of the rotor, Ex(k), Ey(k) signals which are position error of the X-Y direction, and Eux(k), Euy(k) signals which are position error of the X-Y direction caused by the unbalance of the rotor are inputted by sensors formed in the X-Y direction of the magnetic bearing. An u_fd(k) signal which is a feedback control signal is outputted by removing the Eux(k) signal in the Ex(k) signal and the Euy(k) signal in the Ey(k) signal. The fe(k) signal and the u_fd(k) signal are inputted. A y(k) signal which is position output is outputted and the rotational center position of the rotor is compensated through the magnetic bearing.