Design of Interval Type-2 Fuzzy Controllers for Active Magnetic Bearing Systems

Ren, Gui-Ping; Chen, Zhiyong; Zhang, Haitao; Wu, Yue; Meng, Haofei; Wu, Dongrui; Ding, Han

doi:10.1109/tmech.2020.2978018

Cited by 34 publications

(18 citation statements)

References 42 publications

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“…• A full-bridge PWM inverter with a lower turn-off delay will result in a higher 𝑓 𝑐𝑟 and be more preferable, such as CM75TF-12H (IGBT produced by MITSUBISHI, with a 0.2 μs turn-off delay) [8]. • Though higher 𝑓 𝑃𝑊𝑀 can enhance the dynamic performance of the high-speed PEMS transportation system [20], a slightly smaller 𝑓 𝑃𝑊𝑀 than 𝑓 𝑐𝑟 is more preferable due to the higher energy efficiency and the gentler sensitivity transition, whereas the suitable compensation measures are necessary to take care of the nonlinear 𝑖 𝑀𝑁 − 𝐷 characteristic, e.g., the bias current [3,17] and the close-loop current control [2,4,7,8,10,11].…”

Section: Discussionmentioning

confidence: 99%

“…The electromagnetic suspension (EMS) technology has played an essential role in the maglev transportation industry in Germany, Japan, and China since 1960s [1]. Besides, the active magnetic bearing [2][3][4] is another successful application of the EMS technology and is widely found in flywheel systems, high-speed drives, and turbomolecular pumps. However, the EMS technology consumes considerably large power to generate sufficient attractive force against the gravity [5] and requires high-performance electronics, such as the isolated gate bipolar transistor (IGBT) [6][7][8] and the LLC resonant converter [5,9].…”

Section: Introductionmentioning

confidence: 99%

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Electronic Nonlinearity of Full-Bridge PWM Inverter for Zero-Power PEMS System

et al. 2022

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The permanent-electro magnetic suspension (PEMS) technology takes advantage of the attractive magnetic force between the magnet and the iron core and reduces the power consumption eventually to zero. However, the active current in the electromagnet of the zero-power PEMS system fluctuates around zero due to external disturbances and suffers from the electronic nonlinearity of the driving circuit, such as the full-bridge pulse-width-modulation (PWM) inverter. This work presents that the 2 μs turn-off delay (one electronic defect) of the integrated circuit L298N (one commercial full-bridge PWM inverter produced by STMicroelectronics) leads to the nonlinear current-duty cycle characteristic, which undermines the control stability and limits the PWM frequency of the zero-power PEMS system. Moreover, the nonlinear mechanism is experimentally and theoretically analyzed for the critical PWM frequency and the sensitivity transition with respect to the 2 μs turn-off delay. Besides, the critical PWM frequency is of great significance for the energy efficiency and the dynamic performance of the high-speed PEMS transportation system.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electronic Nonlinearity of Full-Bridge PWM Inverter for Zero-Power PEMS System

et al. 2022

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“…Motion by d 15 Working Mode: Principle, Modeling, Simulation, and Experiments; TMECH April 2020 491-501 Yu, J., see 1904-1911Yu, J., see Li, Z., TMECH Dec. 20202633-2644Yu, J., see Dong, H., TMECH Dec. 20202824-2834Yu, K., see Wu, J., TMECH April 2020si-Direct Drive Actuation for a Lightweight Hip Exoskeleton With High Backdrivability and High Bandwidth; TMECH Aug. 2020 1794-1802 Yu, X., and Li, X., Force Characteristics of Rotating Air Film and Flow Closed-Loop for Noncontact Adsorption; TMECH Dec. 2020 2835-2845 Yu, Z., see 2460-2471 Yuan, F., see Xie, Z., 1841-1850 Yuan, Y., see Cheng, C., 1243-1254 Yuan, Y., see Ding, H., TMECH Oct. 20202143-2154 Yudong, Z., see Jie, W., 1886-1893 Yulong, B., see Jie, W., 1886-1893 Yun, H., see 1036-1044 Z Zaccarian, L., see Cocetti, M., 1276-1287, Novel Noncontinuous Carouseling Approaches for MEMS-Based North Seeking Using Kalman Filter: Theory, Simulations, and Preliminary Experimental Evaluation; TMECH Oct. 2020 2437-2448 Zanotto, D., see Scalera, L., TMECH Feb. 2020 217-228 Zeng, B., see Wang, Y., 1422-1431 Zeng, Q., see 2309-2317Zhang, B., see Jia, H., TMECH Feb. 2020 for Cylindrical Traverse Grinding; TMECH Oct. 2020 2220-2229 Zhang, C., see 2188-2196Zhang, D., see Tian, Y., TMECH June 20201322-13342858-2869Zhang, H., see Jin, L., TMECH Aug. 20201803-1811 Zhang, H., see Ren, G., TMECH Oct. 20202449…”

Section: a Novel Piezoelectric Stack For Rotarymentioning

confidence: 99%

2020 Index IEEE/ASME Transactions on Mechatronics Vol. 25

2020

IEEE/ASME Trans. Mechatron.

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“…Moreover, PEMS takes advantage of the Nd-Fe-B permanent magnet to reduce the power consumption of the electromagnet and enables the zero-power suspension [4]. Ren and et al [5] achieved fast and stable levitation of an AMB rotor by compensating for system uncertainties via proper design of interval type-2 membership functions. Zhu and Liu [6] proposed a rotor displacement self-sensing modeling and achieved a six-pole radial hybrid magnetic bearing (HMB).…”

Section: Introductionmentioning

confidence: 99%

Close-Loop Current Control With Current-Sensing Resistor for Electromagnet Driven by Full-Bridge PWM Inverter

2022

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The full-bridge pulse-width-modulation (PWM) inverter is wildly applied to drive the electromagnet and enables advanced technologies, such as the active magnetic bearing (AMB) and the permanent-electro magnetic suspension (PEMS). However, the characteristic relationship between the current through the electromagnet and the duty cycle of the PWM signal has strong nonlinearity around the zero current. Moreover, the electromagnet possesses the induction that results in the time constant and significantly hinders the change of the current. Hence, the open-loop control of the full-bridge PWM inverter cannot accurately or timely tune the current through the electromagnet, especially around the zero current. This work proposes a closed-loop current control approach by three steps: (1) inserting a current-sensing resistor into the middle of the electromagnet, (2) obtaining the current signal with an analog signal-processing circuit, and (3) generating the PWM signal with the bang-bang control circuit. The proposed approach innovatively arranges the current-sensing resistor to take advantage of the symmetry and to minimize the influence from the high-frequency switching of the inverter, so that the measured current signal is comparable to the hall-effect current sensor. The experimental results demonstrate the effectiveness and efficiency of the proposed closed-loop current control approach, though the weak charging capability of the full-bridge PWM inverter still hinders its performance.

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Design of Interval Type-2 Fuzzy Controllers for Active Magnetic Bearing Systems

Cited by 34 publications

References 42 publications

Electronic Nonlinearity of Full-Bridge PWM Inverter for Zero-Power PEMS System

Electronic Nonlinearity of Full-Bridge PWM Inverter for Zero-Power PEMS System

2020 Index IEEE/ASME Transactions on Mechatronics Vol. 25

Close-Loop Current Control With Current-Sensing Resistor for Electromagnet Driven by Full-Bridge PWM Inverter

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