Start-up torques of permanent magnet synchronous generator with non-overlapping concentrated windings

Ose-Zala, Baiba; Pugachov, Vladislav; Levin, N.

doi:10.1109/pq.2014.6866809

Cited by 4 publications

(4 citation statements)

References 9 publications

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“…The electricity transferred from coils (stator) without load has previously been shown to fluctuate the signal (Bülow et al, 2012). In addition, the starting torque partly depends on the load, which breaks the torque produced on the rotor's rotation angle (Ose-Zala et al, 2014). These starting torques could be fabricated over 2.5 seconds.…”

Section: Methodsmentioning

confidence: 99%

Skewing angle magnet and coil reduced starting torque in a permanent magnet synchronous generator for a small vertical axis wind turbine

Pongwan

Chalermnayanont

Trongtorkarn

et al. 2020

Preprint

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Abstract. This work investigated the effects of changing the skewing angle of a magnet coil on starting torque in a permanent magnet generator (PMSG) fitted in a low speed vertical wind turbine. The optimal skew angle of the magnet-coil was found to be 15–0 (degrees), generating 1.22 (N-m) starting torque and 295.40 (W) compared with a skew angle of 0–0 (degrees). This skew angle reduced starting torque and power by 5.43 % and 1.96 %, respectively. A Savonius and H-Darrieus stacked turbine blade operated at a wind speed of 1.90 m/s and 1.31 N-m torque. This blade was used in a fully operational vertical wind turbine, was connected to the PMSG that can cut-in speed of 2.1 m/s. It was concluded that a 15–0 (degree) skewing angle magnet-coil can be applied to a low speed vertical wind turbine.

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Section: Methodsmentioning

confidence: 99%

Skewing angle magnet and coil reduced starting torque in a permanent magnet synchronous generator for a small vertical axis wind turbine

Pongwan

Chalermnayanont

Trongtorkarn

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…First can be mentioned the cogging torque reduction method by an appropriate choice of slot opening design [27], [32]. The opened or half-opened slots must be chosen.…”

Section: A Slot Opening Designmentioning

confidence: 99%

“…The opened or half-opened slots must be chosen. The half-opened slots are an acceptable opportunity only for generators with small pole pair number p ≤ 6 [27]. For greater pole pair numbers there is no effectiveness of applying this method for cogging torque minimization, and the opened slots should be chosen.…”

Section: A Slot Opening Designmentioning

confidence: 99%

“…The next significant cogging torque reduction method is the rational choice of ratio between the stator teeth number Z1 and number of permanent magnets 2p [8], [27]. The previous results [27] confirm that the cogging torques are smaller for PMSG with the nearest ratio Z1/2p = 1 or mathematically (1), thus for the given case Z1 = 18 the PM pole pair number should be p = 8 or 10, i.e., Z1/2p = 18/16 or 18/20 ( Fig. 5).…”

Section: B Stator Teeth and Rotor Poles Ratiomentioning

confidence: 99%

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Methods to reduce cogging torque of permanent magnet synchronous generator used in wind power plants

Ose-Zala

Pugachov

2017

ElAEE

Self Cite

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This paper presents five latest methods and explains the last-new one with intention to reduce the cogging torque of permanent magnet synchronous generators (PMSG). The PMSGs are widely used in wind power plants (WPP) as one of the renewable power generation. One of the international goals is to expand the use of renewable energy sources. The main disadvantage of PMSG is the influence of magnetic interaction between the magnets and the teeth on the operation of PMSG, thus many scientists have been researching the possibilities to reduce the cogging torque. The magnetic field modelling software is used to obtain the values of PMSG cogging torque. The calculations in this software are based on finite element analysis. A methodology is created to obtain the 3D results from the 2D modelled magnetic field. The achieved results allowed to submit a patent. The new proposed method is researched allowing to receive the first results of PMSG optimal design, thus expanding the lower boundary of operating wind speed for WPP. Index Terms-Electromagnetic fields, finite element analysis, permanent magnet machines, torque measurement, wind power generation.

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Comparative Study of Two Different PMSG with Different Slot Pole Combination Having Non-Overlapping Winding Configuration

Bhandari

Paitandi

Debnath

et al. 2019

2019 National Power Electronics Conference (NPEC)

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Start-up torques of permanent magnet synchronous generator with non-overlapping concentrated windings

Cited by 4 publications

References 9 publications

Skewing angle magnet and coil reduced starting torque in a permanent magnet synchronous generator for a small vertical axis wind turbine

Skewing angle magnet and coil reduced starting torque in a permanent magnet synchronous generator for a small vertical axis wind turbine

Methods to reduce cogging torque of permanent magnet synchronous generator used in wind power plants

Comparative Study of Two Different PMSG with Different Slot Pole Combination Having Non-Overlapping Winding Configuration

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