English
资源说明：Abstract-In order to estimate the speed fluctuation band of
interior permanent magnet synchronous motor (IPMSM) under
speed sensorless control with cyclic fluctuating load accurately,
an improved rotor speed estimation method is proposed. A rotor
flux oriented vector control with conventional model reference
adaptive system (MRAS) based rotor position/speed estimation
is employed as the basic control strategy for IPMSM drive. The
finite element method (FEM)-based model of IPMSM is built by
magnetic field analysis in JMAG software to obtain motor
parameter variations caused by different phase currents and
rotor position. These motor parameter variations are used in
MRAS for precise speed fluctuation band estimation.
Furthermore several motor output torque patterns matching the
cyclic fluctuating load with feed-forward compensation strategy
are developed to lower the speed ripple. Simulation and
experimental results demonstrate the feasibility and
effectiveness of the proposed control methods, which shows that
the error between actual speed fluctuation band and estimated
speed fluctuation band is limited within a very low level.
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