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2020 | Buch

Introduction Kapitel lesen Erstes Kapitel lesen

Advanced Direct Thrust Force Control of Linear Permanent Magnet Synchronous Motor

verfasst von: Dr. Muhammad Ali Masood Cheema, Prof. John Edward Fletcher

Verlag: Springer International Publishing

Buchreihe : Power Systems

Enthalten in: Springer Professional "Wirtschaft+Technik" , Springer Professional "Technik"

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Über dieses Buch

This book explores the direct thrust force control (DTFC) of tubular surface-mount linear permanent magnet synchronous motors (linear PMSMs). It presents a detailed account and analysis of several advanced nonlinear control schemes, based on the direct thrust control principle, to achieve a reduction in steady-state ripple in thrust force with faster transient response, and describes their experimental validation. It also provides rigorous details of the dynamic modelling of linear PMSMs from a control system perspective, and demonstrates the superior control performance of the proposed techniques compared to the current state-of-the-art techniques. Lastly, the book proposes and validates a stator flux observer for sensorless speed estimation comprising a linear state observer and an improved sliding mode component.

Inhaltsverzeichnis

Frontmatter
Chapter 1. Introduction
Abstract
The application areas for linear permanent magnet synchronous motors (linear PMSMs) are increasing to include automation of manufacturing processes, transportation, renewable energy devices, and pumping applications.
Muhammad Ali Masood Cheema, John Edward Fletcher
Chapter 2. Mathematical Modeling of Surface-Mount Linear Permanent Magnet Synchronous Motor
Abstract
Precise mathematical modeling of the tubular surface-mount linear PMSM based on the physics of the machine is an essential requirement to formulate any type of control scheme for the machine. In this chapter, the dynamic model of tubular surface-mount linear PMSM in three-phase stationary abc-reference frame is formulated. In order to reduce mathematical complexity, the dynamic model of the surface-mount linear PMSM is developed under some standard assumptions which are often used in formulations of mathematical models for a vast variety of electric machines. In addition, the dynamic model of the surface-mount linear PMSM in three phase stationary abc-reference is transformed to two-axis reference frames by using appropriate transformations to further simplify the controller design process for the machine.
Muhammad Ali Masood Cheema, John Edward Fletcher
Chapter 3. Direct Thrust Force Control Based on Duty Ratio Control
Abstract
In this chapter the concept of conventional direct thrust force control (conventional DTFC) [1‐17] is rigorously analysed and experimentally evaluated for the linear PMSM. Linear PMSMs, especially those with low inductance and short pole pitch, exhibit significant ripple in flux and thrust force under conventional direct thrust force control. Aimed at reducing ripple in the flux and the force, various methods, including space vector modulation [18‐28], model predictive control [29‐31] and duty ratio control [32‐39] can be used.
Muhammad Ali Masood Cheema, John Edward Fletcher
Chapter 4. SV-PWM Based Direct Thrust Force Control of a Linear Permanent Magnet Synchronous Motor
Abstract
In this chapter, two schemes for direct thrust force control (DTFC) based on space vector pulse width modulation (SV-PWM) are proposed, experimentally validated and compared for the prototype linear PMSM. The first direct thrust force control scheme is the PI controller-based regulation of the flux and thrust force and is referred to as “PI-DTFC”. The second direct thrust force control scheme is based on a linear quadratic regulator based control of the flux and thrust force and referred to as “Optimal-DTFC1”. It is important to note that Optimal-DTFC1 is based on a novel state space model which formulates the flux and thrust force dynamics for the linear PMSM.
Muhammad Ali Masood Cheema, John Edward Fletcher
Chapter 5. Optimal, Combined Speed and Direct Thrust Force Control of a Linear Permanent Magnet Synchronous Motors
Abstract
In this chapter, an optimal control scheme for combined speed and direct thrust force control based on SV-PWM is proposed and experimentally validated for the prototype linear PMSM.
Muhammad Ali Masood Cheema, John Edward Fletcher
Chapter 6. Sliding Mode Based Combined Speed and Direct Thrust Force Control of a Linear Permanent Magnet Synchronous Motors
Abstract
In this chapter, a sliding mode control scheme for combined speed and direct thrust force control utilizing SV-PWM is proposed and experimentally validated for the prototype linear PMSM.
Muhammad Ali Masood Cheema, John Edward Fletcher
Chapter 7. Sensorless Control of a Linear Permanent Magnet Synchronous Motors Using a Combined Sliding Mode Adaptive Observer
Abstract
In this chapter, a combined sliding mode adaptive observer for flux and speed estimation of the direct thrust controlled, surface-mount linear PMSM without using position sensors is proposed. The observer comprises a linear state observer combined with a modified nonlinear sliding mode component. The sliding mode component is improved by using two boundary layers which reduces the chattering without compromising robustness.
Muhammad Ali Masood Cheema, John Edward Fletcher
Chapter 8. Conclusions and Future Work
Abstract
This book primarily focuses on the DTFC of tubular surface-mount linear PMSMs. It is important to note that key features of tubular surface-mount linear PMSMs include high acceleration, wide speed range and high precision, making them a prime candidate for industrial automation and servo-mechanisms.
Muhammad Ali Masood Cheema, John Edward Fletcher
Backmatter
Metadaten
Titel
Advanced Direct Thrust Force Control of Linear Permanent Magnet Synchronous Motor
verfasst von
Dr. Muhammad Ali Masood Cheema
Prof. John Edward Fletcher
Copyright-Jahr
2020
Electronic ISBN
978-3-030-40325-6
Print ISBN
978-3-030-40324-9
DOI
https://doi.org/10.1007/978-3-030-40325-6

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