Robust Control of a Variable-Speed BLDC Motor Drive
Pedro M. de Almeida, Rodolfo L. Valle, Pedro G. Barbosa, Vinícius F. Montagner, V. Ćuk, Paulo F. Ribeiro
Abstract
This article deals with the design of a digital current control applied to a variable-speed low inductance brushless dc (BLdc) motor drive. A robust static full-state feedback control law is determined by means of a convex optimization problem, subject to linear-matrix-inequality constraints. The optimization is used to achieve a fast time response with reduced overshoot under the parametric variation. Results from a 5 kW/48 V BLdc motor prototype is used to validate the proposed approach with a superior performance when compared to two other control strategies.
Topics & Concepts
Control theory (sociology)Overshoot (microwave communication)DC motorParametric statisticsInductanceComputer scienceConvex optimizationMotor driveLinear matrix inequalityElectronic speed controlControl engineeringControl (management)EngineeringVoltageMathematicsRegular polygonMathematical optimizationStatisticsTelecommunicationsMechanical engineeringArtificial intelligenceGeometryElectrical engineeringMultilevel Inverters and ConvertersElectric Motor Design and AnalysisSensorless Control of Electric Motors