Nonlinear Optimal DTC Design and Stability Analysis for Interior Permanent Magnet Synchronous Motor Drives

dc.contributor.authorDo, Ton Duc
dc.contributor.authorChoi, Han Ho
dc.contributor.authorJung, Jin-Woo
dc.date.accessioned2016-02-08T05:53:30Z
dc.date.available2016-02-08T05:53:30Z
dc.date.issued2015
dc.description.abstractThis paper presents a nonlinear optimal direct torque control (DTC) scheme of interior permanent magnet synchronous motors (IPMSMs) based on an offline approximation approach for electric vehicle (EV) applications. First, the DTC problem is reformulated in the stationary reference frame in order to avoid estimating the stator flux angle, which the previous DTC schemes in the rotating stator reference frame require. Thus, the proposed DTC method eliminates the Park’s transformation and consequently it reduces the computational efforts. Particularly, since the estimated stator flux angle is not accurate in low speed range, the proposed method that does not need this information can significantly improve the control performance. Moreover, a nonlinear optimal DTC algorithm is proposed to deal with the nonlinearity of the IPMSM drive system. In this paper, a simple offline θ-D approximation technique is utilized to appropriately determine the controller gains. Via an IPMSM test-bed with a TI TMS320F28335 DSP, the experimental results demonstrate the feasibility of the proposed DTC method by accomplishing better control performances (e.g., more stable in low speed region, much smaller speed and torque ripples, and faster dynamic responses) compared to the conventional proportionalintegral (PI) DTC scheme under various scenarios with the existence of parameter uncertaintiesru_RU
dc.identifier.citationTon Duc Do, Han Ho Choi, Jin-Woo Jung; 2015; Nonlinear Optimal DTC Design and Stability Analysis for Interior Permanent Magnet Synchronous Motor Drives; IEEE/ASME TRANSACTION ON MECHATRONICSru_RU
dc.identifier.urihttp://nur.nu.edu.kz/handle/123456789/1171
dc.language.isoenru_RU
dc.rightsAttribution-NonCommercial-ShareAlike 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/us/*
dc.subjectDirect torque controlru_RU
dc.subjectelectric vehicle (EV)ru_RU
dc.subjectinterior permanent magnet synchronous motor (IPMSM)ru_RU
dc.subjectnonlinear optimal controlru_RU
dc.titleNonlinear Optimal DTC Design and Stability Analysis for Interior Permanent Magnet Synchronous Motor Drivesru_RU
dc.typeArticleru_RU

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