A Modified Rotor Flux Observer Based Sensorless Method for Dual Three-Phase PMSM
Anchen Yang, Mingyao Lin, Lun Jia, Keman Lin
Abstract
This paper proposed a modified rotor flux observer designed for dual three-phase PMSM to acquire the rotor fluxes with high accuracy, low harmonic distortion, and without phase lag at the same time. The observed rotor fluxes are smooth enough to calculate the rotor position directly for sensorless control, so the phase lock loop (PLL) can be eliminated. Simulations have been investigated to testify the feasibility and superiority of the proposed method.
Topics & Concepts
Control theory (sociology)Phase-locked loopRotor (electric)Observer (physics)Total harmonic distortionHarmonicHarmonic analysisPosition (finance)Dual (grammatical number)Distortion (music)Synchronous motorLoop (graph theory)Phase (matter)Three-phaseComputer sciencePhysicsVoltageEngineeringBandwidth (computing)MathematicsElectronic engineeringControl (management)AcousticsElectrical engineeringArtCombinatoricsQuantum mechanicsEconomicsComputer networkAmplifierArtificial intelligenceFinanceLiteratureSensorless Control of Electric MotorsMagnetic Bearings and Levitation DynamicsAdaptive Control of Nonlinear Systems