Modeling and simulation analysis of oil-free scroll compressor driven by magnetic force

Shi, Ce; Sun, Feng; Dou, Rutong; Ren, Hongliang; Li, Qiang; Xu, Fangchao; Zhang, Xiaoyou

doi:10.3233/jae-209445

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…Sun proposed an oil-free scroll compressor with a solenoid instead of an anti-rotation device and no wearing parts. Only modeling and simulation were performed in the article, and no experimental study was conducted [4,5]. Magnetic levitation technology, with its fast response, high accuracy, and clean and pollution-free features, provides new solutions for several industries and has been widely used under the intensive research of many scholars, with typical applications such as magnetic levitation bearings [6,7], magnetic levitation trains [8], and magnetic levitation planar motors [9].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Trajectory Tracking Characteristics of a Magnetically Driven Oil-Free Scroll Compressor

Shi

Sun

et al. 2022

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The conventional scroll compressor cannot run oil-free because of wear and tear and lubrication problems during operation due to some parts, such as anti-rotation devices. The magnetic drive oil-free scroll compressor (MDOFSC) uses a contactless drive method to avoid this drawback. In order to solve the swing problem of the orbiting scroll during the operation of the MDOFSC, decentralized control and centralized control are used to study the trajectory tracking characteristics. Firstly, the structure and working principle of the MDOFSC are introduced, and the system’s magnetic circuit and differential control principle are analyzed. Then, the dynamic model of the MDOFSC under the condition of non-compressed gas is established, and the coordinate matrix decoupling method is used to analyze the relationship between the degree of freedom of the system and the measurement distance of the displacement sensor. Finally, the system is simulated and experimentally studied under centralized PID control, and the experimental comparison study between decentralized control and centralized control is conducted. The results show that centralized control dramatically improves the trajectory control ability of the system.

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Section: Introductionmentioning

confidence: 99%

Analysis of Trajectory Tracking Characteristics of a Magnetically Driven Oil-Free Scroll Compressor

Shi

Sun

et al. 2022

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“…Magnetic suspension is a popular technology that applies magnetic force to the target object to realize non-contact motion between objects. With the development of magnetic suspension technology, magnetic suspension technology has been widely applied to various fields, such as bearings [1,2], trains [3,4] and compressors [5]. Furthermore, magnetic suspension technology is also used in harvesting energy technology, in which the magnetic suspension wind turbine [6,7] uses the magnetic force to cause the blades of wind power generation to be suspended in the air gap, and the electrical energy generated by cutting magnetic induction lines is stored in the battery.…”

Section: Introductionmentioning

confidence: 99%

Design and Experimental Validation of a Fuzzy Cascade Controller for a Zero-Power Permanent Magnetic Suspension System with Variable Flux Path Control

et al. 2021

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Magnetic suspension technology has been a promising method to achieve contactless movement, and its advantages are smooth motion, no wear, no noise and low maintenance. In previous studies, the suspension force was mainly controlled by the current in the coils, which can lead to energy loss. To solve the problem of energy loss, we have proposed a novel zero-power permanent magnetic suspension system with variable flux path control (ZPPMSS-VFPC); moreover, the interference suppression and response of the ZPPMSS-VFPC need to be further investigated. This paper aims to improve the robustness and decrease the response time for the ZPPMSS-VFPC; as a result, a fuzzy cascade controller composed of a fuzzy controller and a cascade controller is designed and applied, in which the investigated fuzzy cascade control methods include the position loop fuzzy cascade control (PLFCC) and angle loop fuzzy cascade control (ALFCC). The structure and the working principle of the proposed ZPPMSS-VFPC are introduced, and the theoretical modeling and the fuzzy cascade controller design of the system are exhibited. An experimental setup is established to validate the simulation results and to investigate the control effect of the designed controller. The experimental results demonstrate that the response times of the fuzzy cascade controller at the displacement disturbance and the force disturbance are 0.5 s and 0.6 s faster than those of the cascade control, respectively. Furthermore, the control effect of the PLFCC is better than that of the ALFCC. Overall, the fuzzy cascade controller not only has the characteristics of strong adaptability but also has the characteristics of easy adjustment parameters, which can be applied to the complex magnetic suspension system.

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Analysis of position response characteristics of magnetic driven oil-free scroll compressor

Shi

Sun

et al. 2023

International Journal of Applied Electromagnetics and Mechanics

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Traditional scroll compressors are difficult to achieve oil-free operation due to the presence of a high-friction anti-rotation mechanism. This paper proposes a magnetic drive oil-free scroll compressor to solve this problem. Firstly, the structure and principle of this scroll compressor are introduced. Then the finite element analysis of the electromagnetic system was conducted; the dynamics model of the magnetic scroll compressor operating in the uncompressed state was established. Finally, the PID control of the system is performed, and simulations and experiments are carried out. Experimental results: under the 0.05 mm step signal in the X direction, the position response time of the system is 0.1 s, and the angle response time of 0.001 rad is 0.2 s. The results show that the oil-free scroll compressor has good position control response characteristics.

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Modeling and simulation analysis of oil-free scroll compressor driven by magnetic force

Cited by 3 publications

References 4 publications

Analysis of Trajectory Tracking Characteristics of a Magnetically Driven Oil-Free Scroll Compressor

Analysis of Trajectory Tracking Characteristics of a Magnetically Driven Oil-Free Scroll Compressor

Design and Experimental Validation of a Fuzzy Cascade Controller for a Zero-Power Permanent Magnetic Suspension System with Variable Flux Path Control

Analysis of position response characteristics of magnetic driven oil-free scroll compressor

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