Design of Control System for Forced Dynamics Control of an Electric Drive Employing Linear Permanent Magnet Synchronous Motor

Vittek, Ján; Michalík, Ján; Vavrúš, Vladimír; Horvath, V.

doi:10.1109/icieca.2005.1644365

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…Five non-linear equations are arranged as a set of first-order differential equations to represent the linear PM synchronous machines [20]. These differential equations are derived from the d-and q-axis equivalent circuit illustrated in Fig.…”

Section: Equations Of the Linear Machine Under Synthetic Loadingmentioning

confidence: 99%

Synthetic loading applied to linear permanent magnet synchronous machines

Abbas

Fletcher

2010

IET Renew. Power Gener.

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Linear permanent magnet (PM) machines are applicable to a number of prototype renewable energy devices and therefore are candidates for deployment. Synthetic loading for efficiency evaluation of linear PM synchronous machines is described and evaluated. Synthetic loading is a technique that eliminates the need for an external mechanical load to absorb generated shaft power during rated load efficiency tests. As such it is a technique ideally suited to the large linear PM generators proposed for renewable applications. Mathematical expressions for synthetic loading are derived for the linear PM synchronous machine using the dq machine model that includes core loss. Synthetic loading and standard efficiency tests, as methods of efficiency evaluation, are simulated using MATLAB and SIMULINK. Simulation data are verified by experiment for both the synthetic loading test and the standard efficiency test. Simulation and experimental results show that the synthetic loading method is capable of evaluating the efficiency of linear PM synchronous machine under test. The results show good agreement with standard efficiency tests. The key contribution of this work includes the mathematical expressions of synthetic loading applied to linear PM synchronous machines, the hardware and software implementation of the technique and the validation of the synthetic loading as a technique for efficiency evaluation of linear PM synchronous machines

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Section: Equations Of the Linear Machine Under Synthetic Loadingmentioning

confidence: 99%

Synthetic loading applied to linear permanent magnet synchronous machines

Abbas

Fletcher

2010

IET Renew. Power Gener.

View full text Add to dashboard Cite

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“…Disturbances estimation gives FDC a certain degree of robustness not only with respect to external disturbances but also to plant parameter variations since the plant parameter variations are equivalent to load forces applied to the unperturbed plant model. The original contribution of this paper is a preliminary experimental verification of the control algorithms presented in [5] capable to control speed of moving part with prescribed closed loop dynamics. The overall speed control system of LPMSM, which is shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Forced dynamics control of an actuator with linear PMSM

et al. 2009

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The paper presents design and verification of Forced Dynamics Control of an actuator with linear permanent magnet synchronous motor. This control method is a relatively new one and offers an accurate realization of a dynamic speed response, which can be selected for given application by the user. In addition to this, the angle between stator current vector and moving part flux vector is maintained mutually perpendicular as it is under conventional vector control. To achieve prescribed speed response derived control law requires estimation of an external force, which is obtained from the set of observers. The first observer works in pseudo-sliding mode and observes speed of moving part while the second one has filtering effect for elimination of the previous one chattering. The overall control system is verified by simulations and experimentally. Preliminary experiments confirmed that the moving part speed response follows the prescribed one fairly closely.

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