Robust sensorless load angle control for stepping motors

Derammelaere, Stijn; Verbelen, Florian; Stockman, Kurt

doi:10.1109/icems.2015.7385297

Cited by 8 publications

(10 citation statements)

References 14 publications

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“…Sensor-less control relies on back-electromotive force (back-emf) to determine the rotor position. Some cases of study were analyzed [ 43 , 44 , 45 ]. Back-emf is used to estimate and control the load angle, aiming to maximize torque output.…”

Section: Gripper Controllermentioning

confidence: 99%

Design of a Multi-Mode Hybrid Micro-Gripper for Surface Mount Technology Component Assembly

Fontana,

Iacono,

Negri

et al. 2023

Micromachines

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In the last few decades, industrial sectors such as smart manufacturing and aerospace have rapidly developed, contributing to the increase in production of more complex electronic boards based on SMT (Surface Mount Technology). The assembly phases in manufacturing these electronic products require the availability of technological solutions able to deal with many heterogeneous products and components. The small batch production and pre-production are often executed manually or with semi-automated stations. The commercial automated machines currently available offer high performance, but they are highly rigid. Therefore, a great effort is needed to obtain machines and devices with improved reconfigurability and flexibility for minimizing the set-up time and processing the high heterogeneity of components. These high-level objectives can be achieved acting in different ways. Indeed, a work station can be seen as a set of devices able to interact and cooperate to perform a specific task. Therefore, the reconfigurability of a work station can be achieved through reconfigurable and flexible devices and their hardware and software integration and control For this reason, significant efforts should be focused on the conception and development of innovative devices to cope with the continuous downscaling and increasing variety of the products in this growing field. In this context, this paper presents the design and development of a multi-mode hybrid micro-gripper devoted to manipulate and assemble a wide range of micro- and meso-SMT components with different dimensions and proprieties. It exploits two different handling technologies: the vacuum and friction.

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Section: Gripper Controllermentioning

confidence: 99%

Design of a Multi-Mode Hybrid Micro-Gripper for Surface Mount Technology Component Assembly

Fontana,

Iacono,

Negri

et al. 2023

Micromachines

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show abstract

“…The most common types of DC motors are the brushed and the brushless DC-motors (abbreviated as BDC and BLDC, respectively). BDC can be considered less expensive and heavier than the BLDC, which in turn is more reliable, efficient, and quieter [1].…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Effect of Real-Time Communication Errors on Remote Servo DC-Motor Control Performance

Abdolkhalig¹

2023

ujeee

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This paper presents a review and performance evaluation of a DC-servomotor control loop that is set up based on three different types of real-time-based communications. The aim is to illustrate the effectiveness of communication errors such as sample loss, network latency, and bandwidth on the controlled signal and how the transient response may degrade according to such errors. The control performance is evaluated for three types of communication in a local area network, which are CAN, Ethernet, and switched Ethernet. The loop of the control process is simulated by using a MATLAB/Simulink® based simulator for real-time control systems. The closed-loop control system of the DCservomotor is realized with the help of a discrete-time proportional differential controller. As a result of doing this, a threshold can be found which outlines the limits of the real-time-based communication network in which the performance of the DC-servomotor remains stable. Through a detailed discussion, the type of networked control method that can be used for improving the quality of performance is recommended. The performance is judged through the comparison of process response plots side-by-side and makes denotative statements about which real-time-based communication can give a better result based on peak overshoot ratio and settling time.

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“…BDC motors present more simple control methods, where is only needed a DC voltage supply, resulting in the most undemanding solution from a user perspective and it has a low cost of construction, however, they require regular maintenance to replace the commutation brushes [3], [45], [46]. BLDC offers higher efficiency, lower maintenance, and higher life expectancy, but at the same time, the respective converter and control are more complex and expensive [45]. Taking into account the context of this dissertation and considering a simplified and more robust solution is opted to use a BDC motor.…”

Section: Introductionmentioning

confidence: 99%

Traction and Charging Systems for an Electric Motorcycle

Carvalho

Sousa

Pedrosa

2022

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering

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With the current mobility paradigm, it is proven that excessive energy consumption and low energy efficiency are harming the planet and deteriorating human life conditions. Therefore it is required to substitute Internal Combustion Engines (ICEs) for electric motors and consequently shift gradually to fully electric vehicle (EV) fleets. The electrification of mobility is one of the most researched topics in all technology fields. These efforts put society closer to achieve energy sustainability and reduce the negative human impact on the environment. With this, low energy consumption vehicles such as electric motorcycles (EMs) are a very viable solution to reduce energy consumption. Due to their low power and weight, EMs have high energy efficiency and are optimized for urban transit. In this context, it becomes necessary to develop systems and prototypes common to any EV. Therefore the focus of this thesis is to implement motor traction and battery charging systems for an EM.One of the most important characteristics of an electric traction system is the possibility of applying regenerative braking. Regenerative braking converts the mechanical energy, otherwise dissipated by conventional brakes, into reusable energy that is sent back to the batteries. This process occurs due to the operation of the traction system's power converter and improves greatly the energy efficiency of the EV. Besides, is proposed that the traction system's input is a hand accelerator that can control the motor speed/torque.The charging system acts as an interface between the power grid and the motorcycle system. In applications such as EV charging, it is important to ensure power quality in order to maintain the developed system and the power grid healthy. With this, the first stage of the charger is AC-DC rectification and besides regulating the DC-link voltage should also act as a Power Factor Corrector (PFC) and compensate current harmonics. Secondly, the charger system should be able to regulate and control the charging process by maintaining a constant current, voltage, or temperature. The charger should also ensure the battery's safety, and offer the possibility of regulating the charging speed. This document, details the development of traction and charger systems from the state of the art research and topologies presentation, to the computational simulations, and respective experimental tests/validation.

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Robust sensorless load angle control for stepping motors

Cited by 8 publications

References 14 publications

Design of a Multi-Mode Hybrid Micro-Gripper for Surface Mount Technology Component Assembly

Design of a Multi-Mode Hybrid Micro-Gripper for Surface Mount Technology Component Assembly

Evaluating the Effect of Real-Time Communication Errors on Remote Servo DC-Motor Control Performance

Traction and Charging Systems for an Electric Motorcycle

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