Study of special winding for reduction of space flux harmonics caused by fractional-slot

Tsujikawa, Kazuma; Tokumasu, Tadashi; Kakiuchi, Mikio; Hiramatsu, Daisuke; Ueda, Takashi; Fujita, Masafumi; Ikeda, K.; Ichimonji, Masayuki; Otaka, Takeshi

doi:10.1109/icelmach.2012.6349913

Cited by 3 publications

(2 citation statements)

References 1 publication

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“…As a result, the fundamental component of magneto motive force (MMF) in air gap will be higher and more sinusoidal shape is achieved. In [19–25], some research works are performed to eliminate the harmonics and concentric effect of winding in terms of some parameters of the machine such as material weight and magnetic quantities. THD can be minimised by proper selection of the number of phases, slots and pole‐pairs.…”

Section: Introductionmentioning

confidence: 99%

Reduction in distortion of the synchronous generator voltage waveform using a new winding pattern

Asgharpour-Alamdari

Alinejad‐Beromi

Yaghobi

2017

IET Electric Power Applications

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Sinusoidal voltage waveform in synchronous generators is of great significance in power systems. Generally speaking, the output voltage of a synchronous generator is semi-sinusoidal including some disturbance frequencies (known as harmonics) rather than the fundamental frequency. The harmonic contents cause them to increase in iron loss and reduction in efficiency of electrical machines. For this reason, the harmonic contents of synchronous generators should be carefully taken into consideration. In this study, a new winding pattern for stator of the synchronous generators is proposed to eliminate the harmonic contents of output voltage and so makes it more sinusoidal. In this method, the harmonic contents of output voltage are almost eliminated by selecting the optimal number of conductors per slot. Afterward, through several analytical and simulation studies the suggested winding pattern is compared with those of conventional ones. Moreover, the experimental setup is carried out based on a 3 kW, 1500 RPM synchronous generator. The conventional and proposed winding patterns are separately tested in this setup, and then the harmonic-based behaviour of output voltage is studied for each case under different load conditions. The obtained results prove the superiority of the proposed winding pattern over the conventional patterns.

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Section: Introductionmentioning

confidence: 99%

Reduction in distortion of the synchronous generator voltage waveform using a new winding pattern

Asgharpour-Alamdari

Alinejad‐Beromi

Yaghobi

2017

IET Electric Power Applications

View full text Add to dashboard Cite

show abstract

“…It should be noted that the (6 h + l)th order harmonics produce MMF and torque in the forward direction, whereas the (6 h − 1)th order harmonics produce opposite MMF and torque. Furthermore, the (3 h )th order harmonics do not produce any rotating torque or MMF [16–18].…”

Section: Introductionmentioning

confidence: 99%

Improvement of induction motor operation using a new winding scheme for reduction of the magnetomotive force distortion

Asgharpour-Alamdari

Alinejad‐Beromi

Yaghobi

2017

IET Electric Power Applications

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In conventional methods, distributing and chording the winding of a motor can be used for controlling the harmonic contents of magnetomotive force (MMF). This solution may not be able to reduce the harmonic contents of motors to the desirable value that may cause unsuitable performance of the motor such as crawling phenomenon. Moreover, the harmonic contents of the MMF cause increase of the losses and reduction in efficiency of electrical motors. The effect of the new winding scheme was investigated to improve the induction motor operation by reducing the harmonic contents of the MMF. By applying the new winding pattern in an induction motor, the harmonic component groups of fifth (5, 11, etc.) and seventh (7, 13, etc.) were reduced considerably. A simulation approach alongside experimental results derived from a two-pole, 400 V, 50 Hz, 200 W, three-phase induction motor validate the improvement operation of the motor.

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Design of a novel distributed winding for improving performance of the induction motors

Asgharpour-Alamdari

2022

Electr Eng

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Study of special winding for reduction of space flux harmonics caused by fractional-slot

Cited by 3 publications

References 1 publication

Reduction in distortion of the synchronous generator voltage waveform using a new winding pattern

Reduction in distortion of the synchronous generator voltage waveform using a new winding pattern

Improvement of induction motor operation using a new winding scheme for reduction of the magnetomotive force distortion

Design of a novel distributed winding for improving performance of the induction motors

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