Analysis and Design of a Two-Speed Single-Phase Induction Motor With 2 and 18 Pole Special Windings

Popescu, Mircea; Ionel, Dan M.; Dellinger, S.J.; Miller, T.J.E.; McGilp, M.I.

doi:10.1109/tec.2004.842396

Cited by 14 publications

(3 citation statements)

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“…This leading phase shift is necessary for enabling the motor to develop a sufficiently high starting electromagnetic torque and operate as a balanced two-phase machine. In addition, series-connected capacitors can help in improving the power factor of 1φ IMs [3]- [5].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, other research works concerning the analysis and modeling of 1φ IMs are reported in the technical literature. These research works were able to introduce models for 1φ IMs based on the time-domain equivalent circuits, symmetrical components, reference frame theory, and multiple reference frame theory [1]- [3], [5], [6], [9].…”

Section: Introductionmentioning

confidence: 99%

“…These 1φ IM speed drives are developed to further improve the efficiency and the overall speed-torque performance and control. These drives employ modern speed control techniques that include v/f , maximum torque, triacswitched capacitors, rotor-flux orientation, and conventional proportional-integral (PI) controllers [2]- [5], [8]. On the other hand, implementing 1φ IM speed drives can be enhanced using inverters-fed topologies.…”

Section: Introductionmentioning

confidence: 99%

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Analysis and Real-Time Testing of a Controlled Single-Phase Wavelet-Modulated Inverter for Capacitor-Run Induction Motors

Saleh

Rahman

2009

IEEE Trans. Energy Convers.

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This paper presents the experimental performance of an inverter-fed single-phase (1φ) capacitor-run induction motor (IM) drive. The new 1φ voltage-source four-pulse H -bridge wavelet-modulated (WM) inverter is employed to implement the proposed 1φ motor drive. The WM inverter is operated by switching pulses generated by a unique nondyadic wavelet basisfunctions-based multiresolution analysis (MRA). The synthesis part of this MRA has a scale-time structure such that the scale increase/decrease patterns are related to the sign of the first derivative of the reference-modulating signal. Adjusting zero-crossing locations of the first derivative of the reference-modulating signal can change scales of successive dilated and shifted versions of the synthesis scaling function. This approach of changing inverter switching pulses is called the resolution-level control (RLC) strategy, and can be used to adjust the motor input voltage. The proposed 1φ motor drive incorporating an RLC WM inverter is successfully implemented in real time using a digital signal processor board ds1102 for a 1/2 hp, 1750 r/min capacitor-run IM. The efficacy of the proposed WM-based 1φ IM drive is verified by both simulation and experimental results at various operating conditions. A performance comparison with a conventional proportional-integral controller is also provided to show the superiority of the proposed technique. Simulation and experimental test results of the proposed WM-based drive demonstrate robust performance, simple implementation, significant dynamic response improvements, and an ability to maintain high-quality inverter outputs. Index Terms-Haar scaling function and Fourier analysis, single-phase (1φ) capacitor-run induction motors (IMs), 1φ voltage-source (VS) four-pulse H -bridge, wavelet-based multiresolution analysis (MRA). NOMENCLATURE dIndex of the groups of nonuniform recurrent samples over one cycle of S M (t). D Number of nonuniform sample groups created by ϕ(t) over a quarter cycle of S M (t). G d (t)Lagrange interpolation function defined over the sample group d.Time function of the 1φ capacitor-run induction motor current. j Scale of the constructed multiresolution analysis (MRA). J Maximum value of the scale j. MRA Multiresolution analysis of continuous-time (CT) signals. S M (t)Sinusoidal reference-modulating signal.Haar scaling function. ϕ(t)Scale-based linearly combined scaling function. ϕ(t)Scale-based linearly combined synthesis scaling function. γ d (t)Scale-time interval factor for the sample group d. λ d (t)Interpolating function over the sample group d. θPhase shift introduced in S M (t). ω M Motor speed in radians per second. ω m Angular frequency of S M (t) in radians per second. ω r Reference speed in radians per second.

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Section: Introductionmentioning

confidence: 99%