Performance Analysis of Linear Variable Reluctance Resolvers Based on an Improved Winding Function Approach

Daniar, Ahmad; Nasiri‐Gheidari, Zahra; Tootoonchian, F.

doi:10.1109/tec.2018.2813335

Cited by 53 publications

(8 citation statements)

References 19 publications

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“…Different analytical models including MEC [23] and WF models [21] have been proposed for analyzing electric machines. Compared with FEA, these models are not accurate enough because, both MEC and WF consider only the normal component of the field.…”

Section: The Analytical Modelmentioning

confidence: 99%

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Design Optimization of a Low Speed Small Scale Modular Axial Flux Permanent Magnet Synchronous Generator for Urban Wind Turbine Application

2021

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Small wind turbines can generate clean energy in diverse locations, from urban centers to rural areas without access to the main grids. This study proposes design optimization of an axial flux permanent magnet (AFPM) synchronous machine for small scale portable applications. At first, a fast, accurate and pragmatic hybrid analytical model is proposed for performance prediction of the machine. The proposed model is then used as a basis for a direct search optimization process with factual constrains and objective functions to improve the machine in terms of efficiency, weight and to ease the manufacturing process. 3 Dimensional Time Stepping Finite Element Method (3-DTSFEM) is utilized to validate the accuracy and effectiveness of the proposed model and optimization methodology.Output characteristic of the machine from both analytical model and 3-DTSFEM are compared to each other that proves the functionality of the proposed study.

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Section: The Analytical Modelmentioning

confidence: 99%

“…But this method is not very accurate due to poor estimation of the equivalent circuit parameters. Different analytical models, like Winding Function (WF) [21][22], Magnetic Equivalent Circuit (MEC) [23], and Fourier series method [24] are developed for design and optimization of electrical machines.…”

Section: Introductionmentioning

confidence: 99%

Design Optimization of a Low Speed Small Scale Modular Axial Flux Permanent Magnet Synchronous Generator for Urban Wind Turbine Application

2021

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“…Supplying the excitation winding with voltage or current source is a challenge for simulation of resolvers [10], [14]. In this section, to investigate the performance of the resolvers, both AC flux resolver and DC flux resolver are simulated using TSFEM to study the influence of the excitation type on the output signals.…”

Section: Different Supply Typementioning

confidence: 99%

“…All of the aforementioned resolvers supply the excitation winding with AC voltage/current source [7] and as a result, the AC-excited coils of excitation winding produce AC magnetic field which flows into the core of the sensor and induced HF voltage in signal windings. In addition to the radial flux resolvers, axial flux resolvers [9] and linear resolvers [10]- [12] have been investigated. In [13], a new PM-Resolver with permanent magnets (PMs) in its structure investigated which shows that the resolver also can work properly with DC magnetic flux rather than AC magnetic flux.…”

Section: Introductionmentioning

confidence: 99%

The Comparative Analysis of AC-Flux and DC-Flux Resolvers

Bahari

Nasiri

2020

Scientia Iranica

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Resolver, as an electromagnetic sensor, is widely used in many industrial applications. It can detect the position of the rotary part of the electric machines precisely. In commercial resolvers, the excitation winding is connected to the high frequency (HF) AC source. The amplitude-modulated voltages induced in the signal windings need to be demodulated in order to calculate the envelope of the output signals and accordingly detect the position. On the other hand, in PMresolver, signal windings replaced by Hall-effect sensors to measure the DC magnetic flux which is produced by permanent magnets. In this study, the performance of both AC and DC flux resolvers is investigated under different circumstances. All the simulations are done by the time-stepping finite element method (TSFEM).

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“…The linear resolvers are categorized into two types. The first type has a Variable Reluctance (VR) structure [6], [9], where the windings are located on the mover, and the stator is designed based on the sinusoidal air-gap permeances. The second type is designed based on the slots/teeth stator structure, where the windings are placed on both mover and stator [10]- [13].…”

Section: Introductionmentioning

confidence: 99%

A Novel Linear Resolver Proposal and Its Performance Analysis Under Healthy and Asymmetry Air-Gap Fault

Naderi

Ramezannezhad

Vandevelde

2022

IEEE Trans. Instrum. Meas.

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A novel linear resolver is proposed in this paper. The excitation and signals windings are placed on the mover, and the stator structure is designed by a certain number of teeth/slots per the mover length. Therefore, the proposed structure is more simple compared to other resolver types and causes a low price structure. A flexible Magnetic Equivalent Circuit (MEC) is used for analysis thanks to its capability, introducing various structures. The resolver performance under healthy and faulty cases is evaluated, where the position error under asymmetry air-gap fault is obtained. Performed analysis shows that the proposed resolver has less than 100 µm position error. Hence it can be a proper alternative as an accurate position sensor. The simple structure and high-accurate position estimation are the advantages of the proposed resolver compared to other types. Finally, the effectiveness of the proposed resolver is validated by experimental results.

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Performance Analysis of Linear Variable Reluctance Resolvers Based on an Improved Winding Function Approach

Cited by 53 publications

References 19 publications

Design Optimization of a Low Speed Small Scale Modular Axial Flux Permanent Magnet Synchronous Generator for Urban Wind Turbine Application

Design Optimization of a Low Speed Small Scale Modular Axial Flux Permanent Magnet Synchronous Generator for Urban Wind Turbine Application

The Comparative Analysis of AC-Flux and DC-Flux Resolvers

A Novel Linear Resolver Proposal and Its Performance Analysis Under Healthy and Asymmetry Air-Gap Fault

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