Modeling and Precision Control of Permanent Magnet Linear Motors

Zhang, D.L.; Kong, Ching; Chen, Y.P.

doi:10.3182/20080706-5-kr-1001.00381

Cited by 5 publications

(3 citation statements)

References 10 publications

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“…Instead of the torque an ability for a dislocation of big weights, a value of the force in N, is given. In these motors very big values of accelerations and velocities are achieved due to a direct transmission of the driving force to linear motion [7,12,14,28].…”

Section: Selection Of Electric Motormentioning

confidence: 99%

Trenchless Execution of Microtunnels for Municipal Infrastructure in Urbanized Site – Conception of a New Solution

Kotwica

Suffner

Andraș

2020

Management Systems in Production Engineering

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The technologies for trenchless execution of mini and microtunnels for an installation of municipal infrastructure in urbanized sites, used at present, are described in the article. The emphasis is laid on uncontrolled methods, in the case of the diameters of installations which do not exceed 200-250 mm and their length not bigger than 30-40 m. Some issues connected with making the installations of this type, using conventional methods, are also presented. A conception of equipment (ground rocket) for an trenchless execution of short-distance microtunnels of the diameter up to 200 mm and the length up to 30 m with an innovative electric drive, developed at the Department of Machinery Engineering and Transport of the AGH in Cracow as an alternative for the solutions applied nowadays, is described. An electric linear motor, whose conception is presented in the article, was installed in the head of the device. The goal of these works was possibility of using new solution of ground rocket without additional equipments for pneumatic supply with compressed air. New concept of proposed ground rocket can be used with feeding directly from the domestic electric network. The device is intended for execution of installation in incoherent and low-compact ground.

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Section: Selection Of Electric Motormentioning

confidence: 99%

Trenchless Execution of Microtunnels for Municipal Infrastructure in Urbanized Site – Conception of a New Solution

Kotwica

Suffner

Andraș

2020

Management Systems in Production Engineering

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“…For linear motion applications, various linear motor configurations and technologies can be utilized [9]. The most frequently employed linear motors include induction linear motors, switched reluctance linear motors, and permanent magnet linear motors [10][11][12]. Among these options, permanent magnet linear motors are deemed to be most suitable for linear motion functions due to their notably higher efficiency and greater power density [13].…”

Section: Introductionmentioning

confidence: 99%

Analyzing the Design and Performance of a DC Linear Stepper Motor

Habil,

Anayi,

Xue

et al. 2023

Machines

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This paper describes the design and modelling of a DC linear stepper motor (DLSM), to investigate the air-gap magnetic flux density and the static features of the thrust force under the DC current excitation condition, while taking the nonlinear properties of iron materials used into account. A Finite Element Method (FEM) study utilizing software called a “MagNet” was employed to model and construct a linear DC motor. The thrust force, air-gap flux density, and static thrust force at various airgaps were compared in simulation and real time. The result showed that the magnetic flux density presents a sinusoidal shape in both the simulation and measurement, where the peak error value was around 7.14%. A comparison was made with thrust force, as the armature current has different values; the results show that the difference between the experimental and computed peak value was 8.07%, while the error between the measured and simulated value was 5.02% when the thrust force was measured at different air gap lengths.

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“…In Figure 9, K is the synchronization compensation coefficient; and F g is the correction controller. In order to accelerate the system's dynamic response [37], this paper introduces the classic advanced correction, namely:…”

Section: The Advanced Synchronization Compensatormentioning

confidence: 99%

Speed Synchronous Control of Multiple Permanent Magnet Synchronous Motors Based on an Improved Cross-Coupling Structure

2018

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Abstract:Regarding the shortcomings of the cross-coupling control structure during the start-up of a multi-motor with load-namely, a large synchronization error and a long start-up time-this paper proposes a fuzzy self-adjusting cross-coupling control structure. This structure combines a fuzzy self-adjusting filter and an advanced synchronization compensator. The fuzzy self-adjusting filter adjusts the "softened speed", a newly established concept, so that each motor follows the trajectory of the softened speed during start-up, thus effectively reducing the synchronization error of the starting process. The advanced synchronization compensator is added to shorten the adjusting time of the motors. In addition, this paper analyzes the synchronization performance of the structure when the steady state is interrupted by a sudden step of load. Finally, this paper establishes an experimental platform for a synchronous speed control system for a permanent magnet synchronous motor, and verifies the effectiveness of the proposed structure and the correctness of the theoretical analysis through performing experiments.

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Modeling and Precision Control of Permanent Magnet Linear Motors

Cited by 5 publications

References 10 publications

Trenchless Execution of Microtunnels for Municipal Infrastructure in Urbanized Site – Conception of a New Solution

Trenchless Execution of Microtunnels for Municipal Infrastructure in Urbanized Site – Conception of a New Solution

Analyzing the Design and Performance of a DC Linear Stepper Motor

Speed Synchronous Control of Multiple Permanent Magnet Synchronous Motors Based on an Improved Cross-Coupling Structure

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