Control System Design for Low PowerMagnetic Bearings in a Flywheel Energy Storage System  

作　　者：Tinnawat Hongphan Matthew O.T.Cole Chakkapong Chamroon Ziv Brand 

机构地区：[1]Department of Mechanical Engineering,Chiang Mai University,Chiang Mai,50200,Thailand 2Department of Mechanical Engineering,Shamoon College of Engineering,Be’er Sheva,84100,Israel

出　　处：《Energy Engineering》2023年第1期147-161,共15页能源工程（英文）

基　　金：supported by Thailand Science Research and Innovation and the National Research Council of Thailand under Grant RGU6280014.

摘　　要：This paper presents a theoretical and experimental study on controller design for the AMBs in a small-scale flywheel energy storage system,where the main goals are to achieve low energy consumption and improved rotordynamic stability.A H-infinity optimal control synthesis procedure is defined for the permanent-magnet-biased AMB-rotor system with 4 degrees of freedom.Through the choice of design weighting functions,notch filter characteristics are incorporated within the controller to reduce AMB current components caused by rotor vibration at the synchronous frequency and higher harmonics.Experimental tests are used to validate the controller design methodology and provide comparative results on performance and efficiency.The results show that the H-infinity controller is able to achieve stable rotor levitation and reduce AMB power consumption by more than 40%(from 4.80 to 2.64 Watts)compared with the conventional PD control method.Additionally,the H-infinity controller can prevent vibrational instability of the rotor nutation mode,which is prone to occur when operating with high rotational speeds.

关 键 词：Magnetic bearings FLYWHEEL control systems gyroscopic effects stability EFFICIENCY 

分 类 号：TK02[动力工程及工程热物理]