Finite‐time composite control scheme for three‐phase four‐leg inverter under variable operating conditions

Sun, Yuge; Niu, Xitong; Zhang, Chuanlin; Jiang, Nannan

doi:10.1049/joe.2019.1060

Cited by 3 publications

(1 citation statement)

References 16 publications

(15 reference statements)

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“…Recently, reference [15] propose an semiglobal finite-time trajectory tracking realization for disturbed nonlinear systems via higher-order sliding modes is proposed which can render a non-recursive design and render precise control. Thereafter, this method has been well applied in various nonlinear systems, see [16], [21] for example.…”

Section: Introductionmentioning

confidence: 99%

A Composite Algorithm for Permanent Magnet Linear Synchronous Motor with Rapidly Varying Loads: Using Finite-time Tracking and Observer

Niu

Zhang

et al. 2021

2021 13th International Symposium on Linear Drives for Industry Applications (LDIA)

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The permanent magnet linear synchronous motor (PMLSM) is a promising motor to drive cordless elevator, computer numerical control machines due to its high force density and zero transmission. In the presence of rapidly varying loads, however, the conventional control methods of PMLSM cannot guarantee the precise-velocity and highdynamic operation. In this work, a large signal stabilization scheme, which comprises high order slide mode (HOSM) observer and a finite-time controller (FTC), is proposed. Firstly, a finite-time observer is introduced to accurately observe the varying loads in finite time. Secondly, the FTC exactly offsets the estimated values and stabilizes all system states at their designated points in finite time. Finally, numerical simulation results show that the proposed controller provides a stronger adaptability and better performance in precision and speed to rapidly varying loads than the traditional PI controller.

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Section: Introductionmentioning

confidence: 99%