Variable reluctance motor characterization

Manzer, Dennis G.; Varghese, Matthew; Thorp, James S.

doi:10.1109/41.20345

Cited by 42 publications

(15 citation statements)

References 5 publications

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“…However, the transfer function can be extracted from measurements of the disturbance sensitivity function with two different feedbacks. By denoting G JTF as the sensitivity function corresponding to χ ≡ 1, one can obtain G JTF (s) = (H(s) − 1)G(s) from (25). Let us assume that Φ τ J τ J and Φ θτ J denote the power spectral density and the cross-correlation spectral density related to measured signals τ J and θ when Q = 0, and that Φ τ J τ J and Φ θτ J denote the corresponding spectral densities when Q = 1.…”

Section: ) Experimental Resultsmentioning

confidence: 99%

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A Modular and High-Precision Motion Control System With an Integrated Motor

Aghili¹,

Hollerbach

Buehler

2007

IEEE/ASME Trans. Mechatron.

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Abstract-This paper describes the design and control of an integrated direct-drive joint suitable for applications that require a high-precision motion control system. The joint integrates a directdrive synchronous motor with axial air gap, a torque sensor, and a high-resolution position sensor. The key design aspects of the integrated joint, like the motor's armature, cooling system, motor housing, bearing arrangement, sensors, and power electronics are detailed. We also present a number of advanced implementations in motor torque control, optimal joint torque sensory feedback, and motion control using positive joint torque feedback. Experimental results illustrate an outstanding performance regarding thermal response, torque ripple, reference trajectory tracking, torque disturbance rejection, and joint stiffness.

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Section: ) Experimental Resultsmentioning

confidence: 99%

“…Such a controller is briefly described in this section. Control approaches for accurate torque production in direct-drive systems and their underlying models have been studied by several researchers [6], [12], [25]- [28]. The control problem is radically simplified when the motor's phase currents are considered as the inputs.…”

Section: B Motor Torque Controlmentioning

confidence: 99%

A Modular and High-Precision Motion Control System With an Integrated Motor

Aghili¹,

Hollerbach

Buehler

2007

IEEE/ASME Trans. Mechatron.

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“…The control problem of translating a desired torque command faithfully into a motor torque and the underlying motor model have been studied by several researchers [4]- [11]. Manzer et al [4] characterized variable-reluctance motors by approximating their flux linkage through piecewise fits of polynomials.…”

Section: Introductionmentioning

confidence: 99%

“…Manzer et al [4] characterized variable-reluctance motors by approximating their flux linkage through piecewise fits of polynomials. Murai et al [12] proposed heuristic commutation for nonsinusoidal flux distribution.…”

Section: Introductionmentioning

confidence: 99%

Optimal commutation laws in the frequency domain for PM synchronous direct-drive motors

Aghili

Buehler

Hollerbach

2000

IEEE Trans. Power Electron.

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Abstract-This paper presents a new model for torque generation of permanent-magnet synchronous motors and their control based on Fourier coefficients. A new commutation strategy delivers ripple-free torque and simultaneously minimizes copper losses for the case when the motor's servo amplifier dynamics are negligible. However, multipole motors give rise to high frequency control signals, and often the dynamics of the current amplifier are no longer negligible. For this case, we present a new commutation strategy which minimizes the torque ripple and the velocity induced change in the torque transfer function. The performance of both commutation laws is validated via simulations based on experimental data from a synchronous motor. Minimal computational requirements make these algorithms ideal for real time implementation.

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“…al. [3] proposed a method to approximate the phase flux linkage of SRM analytically as piecewise bivariate polynomial in the form of:…”

Section: Introductionmentioning

confidence: 99%

A new method for accurate analytical modeling of switched reluctance motor

Cao

Tseng

1998 International Conference on Power Electronic Drives and Energy Systems for Industrial Growth, 1998. Proceedings.

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This paper presents a new method to build an accurate analytical dynamic model for switched reluctance motor (SRM). The parametric piecewise Hermite cubic spline function with a combination of Fourier series is proposed as a more accurate analytical expression to fit the phase flux linkage/currenVposition characteristic data of SRM. The new method proposed here is universally applicable to any type of SRM.

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Variable reluctance motor characterization

Cited by 42 publications

References 5 publications

A Modular and High-Precision Motion Control System With an Integrated Motor

A Modular and High-Precision Motion Control System With an Integrated Motor

Optimal commutation laws in the frequency domain for PM synchronous direct-drive motors

A new method for accurate analytical modeling of switched reluctance motor

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