Abstract
Finite-time control scheme for speed regulation of permanent magnet synchronous motor (PMSM) is investigated under the port-controlled Hamiltonian (PCH), terminal sliding mode (TSM), and fast TSM stabilization theories. The desired equilibrium is assigned to the PCH structure model of PMSM by maximum torque per ampere (MTPA) principle, and the desired Hamiltonian function of state error is constructed in the form of fractional power structure as TSM and fast TSM, respectively. Finite-time TSM and fast TSM controllers are designed via interconnection and damping assignment passivity-based control (IDA-PBC) methodology, respectively, and the finite-time stability of the desired equilibrium point is also achieved under the PCH framework. Simulation results validate the improved performance of the presented scheme.
Highlights
Permanent magnet synchronous motors (PMSM) have become increasingly popular in high-performance AC drive applications because of their advantages over many other kinds of motors, such as induction motors and DC motors [1]
The speed regulation performance of the permanent magnet synchronous motor (PMSM) based on the proposed controllers is investigated
The speed regulation can reach the reference speed in finite-time 0.02 s and 0.12 s for fast terminal sliding mode (TSM) control and TSM control, respectively, and the conventional interconnection and damping assignment passivity-based control (IDA-PBC) only obtains the asymptotical convergence to the reference speed
Summary
Permanent magnet synchronous motors (PMSM) have become increasingly popular in high-performance AC drive applications because of their advantages over many other kinds of motors, such as induction motors and DC motors [1]. The speed regulation of PMSM has been investigated with IDA-PBC [14,15,16] All these approaches share the common property of asymptotic stability with infinite convergent time. The speed regulation of PMSM has been investigated with the continuous finite-time controls [19, 20]. According to the PCH structure model of PMSM, a kind of finite-time TSM feedback realization is proposed to achieve the rapid speed regulation of PMSM in this paper.
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