000076089 001__ 76089
000076089 005__ 20200117221617.0
000076089 0247_ $$2doi$$a10.3390/en11113219
000076089 0248_ $$2sideral$$a109276
000076089 037__ $$aART-2018-109276
000076089 041__ $$aeng
000076089 100__ $$0(orcid)0000-0002-5727-5705$$aGarcía Gracia, Miguel$$uUniversidad de Zaragoza
000076089 245__ $$aCogging torque reduction based on a new pre-slot technique for a small wind generator
000076089 260__ $$c2018
000076089 5060_ $$aAccess copy available to the general public$$fUnrestricted
000076089 5203_ $$aCogging torque is a pulsating, parasitic, and undesired torque ripple intrinsic of the design of a permanent magnet synchronous generator (PMSG), which should be minimized due to its adverse effects: vibration and noise. In addition, as aerodynamic power is low during start-up at low wind speeds in small wind energy systems, the cogging torque must be as low as possible to achieve a low cut-in speed. A novel mitigation technique using compound pre-slotting, based on a combination of magnetic and non-magnetic materials, is investigated. The finite element technique is used to calculate the cogging torque of a real PMSG design for a small wind turbine, with and without using compound pre-slotting. The results show that cogging torque can be reduced by a factor of 48% with this technique, while avoiding the main drawback of the conventional closed slot technique: the reduction of induced voltage due to leakage flux between stator teeth. Furthermore, through a combination of pre-slotting and other cogging torque optimization techniques, cogging torque can be reduced by 84% for a given design.
000076089 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/RTC-2016-5234-3
000076089 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000076089 590__ $$a2.707$$b2018
000076089 591__ $$aENERGY & FUELS$$b56 / 103 = 0.544$$c2018$$dQ3$$eT2
000076089 592__ $$a0.612$$b2018
000076089 593__ $$aControl and Optimization$$c2018$$dQ1
000076089 593__ $$aElectrical and Electronic Engineering$$c2018$$dQ1
000076089 593__ $$aRenewable Energy, Sustainability and the Environment$$c2018$$dQ1
000076089 593__ $$aEnergy Engineering and Power Technology$$c2018$$dQ1
000076089 593__ $$aEnergy (miscellaneous)$$c2018$$dQ1
000076089 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000076089 700__ $$0(orcid)0000-0002-3157-0239$$aJiménez Romero, Ángel$$uUniversidad de Zaragoza
000076089 700__ $$aHerrero Ciudad, Jorge
000076089 700__ $$0(orcid)0000-0002-7008-7610$$aMartín Arroyo, Susana$$uUniversidad de Zaragoza
000076089 7102_ $$15009$$2535$$aUniversidad de Zaragoza$$bDpto. Ingeniería Eléctrica$$cÁrea Ingeniería Eléctrica
000076089 773__ $$g11, 11 (2018), 3219 [15 pp.]$$pENERGIES$$tEnergies$$x1996-1073
000076089 8564_ $$s6427404$$uhttps://zaguan.unizar.es/record/76089/files/texto_completo.pdf$$yVersión publicada
000076089 8564_ $$s108565$$uhttps://zaguan.unizar.es/record/76089/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000076089 909CO $$ooai:zaguan.unizar.es:76089$$particulos$$pdriver
000076089 951__ $$a2020-01-17-21:51:43
000076089 980__ $$aARTICLE