CAJ | 학술논문

研究一种新型节能变磁阻式平面行程的磁轴承,它利用三套悬浮控制线圈提供调节磁通来实现悬浮控制。其悬浮部分由于磁路的交叉耦合而成为了一个与动子各端部悬浮高度以及动子平面位置都相互关联的复杂的耦合系统。针对悬浮部分非线性、多变量、强耦合的特点,提出一种改进型的自抗扰控制器（ADRC）来实现解耦控制和抑制扰动,克服了传统ADRC中误差非线性反馈控制律（NLSEF）的非线性函数不平滑特性,以此改善其控制品质。针对传统和改进型的ADRC,进行了启动和加入扰动时的仿真对比分析,针对改进型ADRC进行了实验测试。仿真和实验测试表明,应用改进型ADRC后,磁轴承悬浮位置控制系统具有很好的动、静态特性及鲁棒性。
연구일충신형절능변자조식평면행정적자축승,타이용삼투현부공제선권제공조절자통래실현현부공제。기현부부분유우자로적교차우합이성위료일개여동자각단부현부고도이급동자평면위치도상호관련적복잡적우합계통。침대현부부분비선성、다변량、강우합적특점,제출일충개진형적자항우공제기（ADRC）래실현해우공제화억제우동,극복료전통ADRC중오차비선성반궤공제률（NLSEF）적비선성함수불평활특성,이차개선기공제품질。침대전통화개진형적ADRC,진행료계동화가입우동시적방진대비분석,침대개진형ADRC진행료실험측시。방진화실험측시표명,응용개진형ADRC후,자축승현부위치공제계통구유흔호적동、정태특성급로봉성。
A novel energy-saving variable reluctance-type planar magnetic bearing was designed, which made use of three levitation coils to provide regulation flux to achieve levitation control. The levitation system of the planar magnetic bearing is a complex coupling system in connection with end-levitating altitude and planar position of mover because of the cross-coupling from the magnetic circuit. For the levitation system’s multivariable, nonlinear and strong coupling characters, a novel auto-disturbance rejection controller（ADRC） is proposed to realize decoupling control and disturbance rejection. This controller overcomes the rough character of non-linear function in nonlinear state error feedback of conventional ADRC and improves the control quality. For conventional and the novel ADRC, comparative analysis of simulation for start-up and adding a number of disturbances is carried out. For the improved ADRC, the experimental tests are carried out. The results of simulation and experiment show that the levitation position control system of the Planar Magnetic bearing has better dynamic,static and robust characters by using the novel auto-disturbance rejection controller.