控制理论(社会学)
磁力轴承
PID控制器
非线性系统
补偿(心理学)
噪音(视频)
执行机构
计算机科学
工程类
方位(导航)
控制器(灌溉)
磁悬浮
控制系统
控制工程
温度控制
磁铁
控制(管理)
物理
机械工程
电气工程
人工智能
农学
图像(数学)
生物
量子力学
心理学
精神分析
作者
Yichen Yao,Yixin Su,Suyuan Yu
出处
期刊:2021 28th International Conference on Nuclear Engineering
日期:2021-08-04
标识
DOI:10.1115/icone28-65730
摘要
Abstract Magnetic bearing is widely used in helium-turbine circle of the high temperature gas-cooled reactor and many other highspeed rotating machinery because of its unique advantages in vibration and noise reduction. However, the power consumption of magnetic bearing increases its cost of use. Moreover, the design of magnetic bearing controller relies on accurate system modeling. All these restrict the industrial application of magnetic bearings. Based on the structure of the eight-pole magnetic bearing and its corresponding traditional decentralized differential PID control strategy, this paper proposes a magnetic bearing control framework including expected bearing force realization control strategy and centralized control strategy. Under this framework, a nonlinear low bias current control method for magnetic bearing system is given. Afterwards, an active disturbance rejection controller based on low(zero) bias current is proposed to compensate the gyroscopic disturbance and modeling uncertainty of the system. The controller can keep small loss of magnetic bearing and have good stability. It has a frame of active disturbance rejection control (ADRC) and its compensation performance is analyzed. In order to verify the effectiveness of the controller, a corresponding experimental verification is carried out on the test rig. The results show that the control strategy is effective.
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