Electrically Driven Fertilizer Applicator Controlled By Fuzzy Logic

dc.creatorGarcia A.P.
dc.creatorCappelli N.L.
dc.creatorUmezu C.K.
dc.date2014
dc.date2015-06-25T18:01:30Z
dc.date2015-11-26T15:03:21Z
dc.date2015-06-25T18:01:30Z
dc.date2015-11-26T15:03:21Z
dc.date.accessioned2018-03-28T22:14:14Z
dc.date.available2018-03-28T22:14:14Z
dc.identifier
dc.identifierEngenharia Agricola. Sociedade Brasileira De Engenharia Agricola, v. 34, n. 3, p. 510 - 522, 2014.
dc.identifier1006916
dc.identifier10.1590/S0100-69162014000300014
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84906280423&partnerID=40&md5=e5d2847e9e460633e2b2404e94ddf89f
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/87598
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/87598
dc.identifier2-s2.0-84906280423
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1256596
dc.descriptionThe present study shows the development, simulation and actual implementation of a closed-loop controller based on fuzzy logic that is able to regulate and standardize the mass flow of a helical fertilizer applicator. The control algorithm was developed using MATLAB's Fuzzy Logic Toolbox. Both open and closed-loop simulations of the controller were performed in MATLAB's Simulink environment. The instantaneous deviation of the mass flow from the set point (SP), its derivative, the equipment́s translation velocity and acceleration were all used as input signals for the controller, whereas the voltage of the applicator's DC electric motor (DCEM) was driven by the controller as output signal. Calibration and validation of the rules and membership functions of the fuzzy logic were accomplished in the computer simulation phase, taking into account the system's response to SP changes. The mass flow variation coefficient, measured in experimental tests, ranged from 6.32 to 13.18%. The steady state error fell between -0.72 and 0.13g s-1 and the recorded average rise time of the system was 0.38 s. The implemented controller was able to both damp the oscillations in mass flow that are characteristic of helical fertilizer applicators, and to effectively respond to SP variations.
dc.description34
dc.description3
dc.description510
dc.description522
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dc.languageen
dc.publisherSociedade Brasileira de Engenharia Agricola
dc.relationEngenharia Agricola
dc.rightsaberto
dc.sourceScopus
dc.titleElectrically Driven Fertilizer Applicator Controlled By Fuzzy Logic
dc.typeArtículos de revistas


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