Analytical model for performance prediction of linear resolver

Saneie, Hamid; Nasiri‐Gheidari, Zahra; Tootoonchian, F.

doi:10.1049/iet-epa.2016.0693

Cited by 30 publications

(7 citation statements)

References 22 publications

(39 reference statements)

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“…Where, R ex and L ex are the resistance and inductance of excitation winding, respectively. The induced voltage in the signal windings can be written as [25]:…”

Section: The Studied Resolvermentioning

confidence: 99%

Optimal Winding Selection for Wound-Rotor Resolvers

et al. 2019

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Wound-rotor (WR) resolvers are the most commercially used resolvers in industrial applications. In this paper, the effect of different winding arrangements on the accuracy of WR resolvers is discussed. Three windings are proposed for the stator of the resolver that are involved on-tooth overlapping winding, distributed lap winding and distributed concentric winding. Those windings are also applied to the rotor. All the rotor windings are assumed to be single phase and two-phase. Therefore, the effect of damper winding is also studied in the paper. The analysis is done using time stepping finite element method and the most accurate resolver is built and tested. Close agreement between the experimental measurements and the finite element results confirms the obtained results.

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“…Where, R ex and L ex are the resistance and inductance of excitation winding, respectively. The induced voltage in the signal windings can be written as [25]:…”

Section: The Studied Resolvermentioning

confidence: 99%

Optimal Winding Selection for Wound-Rotor Resolvers

et al. 2019

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“…where V a and V b are phase voltages, r s is resistance of the signal winding, λ a and λ b are flux linkage of a and b windings of the stator and i a and i b are the phase currents. Due to high input impedance of the resolver to digital converter the stator currents are negligible [28]. The equations for the flux linkages of the stator windings can be expressed as…”

Section: Topology and Operating Principlementioning

confidence: 99%

Effect of damper winding on accuracy of wound‐rotor resolver under static‐, dynamic‐, and mixed‐eccentricities

Totoonchian

2018

IET Electric Power Applications

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Most of the resolvers used in high precision servomechanism are two-pole, wound-rotor ones. The configuration of their stator winding is based on variable-turn, on-tooth method. However, there is different opportunity for their rotor: using distributed winding or on-tooth one. Furthermore, based on the operating principle of the resolver its rotor needs a single phase winding. While, in many practical cases a two-phase winding that one of them is short-circuited (damper winding) is employed for rotor. In this study, the effect of different configurations for rotor winding on the resolver performance in terms of the average of absolute position error, maximum position error, and total harmonic distortion of induced voltages envelopes is investigated. Then, the effect of damper winding on the performance of the resolver under static-, dynamic-, and mixed-eccentricities are studied. In this study, all simulations are performed using three-dimensional time stepping finite-element method and finally, the experimental tests on the studied sensor using a precision test setup are employed to approve the simulation results.

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“…However, resolvers gain more attention in recent years, as they have some distinguished advantages in comparison with encoders such as ability to work in harsh and polluted environments with high vibration and high-temperature changes [2][3][4][5][6][7]. Furthermore, variable reluctance (VR) resolvers have no winding on rotor and easily integrated with motors [1,[8][9][10][11][12][13]. Since they do not need rotary transformer (RT) to transfer excitation voltage to the rotor, they have more thermal stability with respect to the wound rotor resolvers and there is no concern about leakage flux of RT and phase shift error due to equivalent impedance of RT [14][15][16].…”

Section: Introductionmentioning

confidence: 99%