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Jiulin Li, Qingquan Li, Qingzhou Mao and Hao Xu
Steel structures that benefit from having lightweight, ductility, and seismic behaviors are capable of improving the overall performance of civil engineering in environmental protection, project quality, process management, and ease of construction, maki...
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Ke Yu, Zuo Wang and Ling Li
This paper presents a filterless sensorless control scheme with an optimized time sequence based on high-frequency (HF) square-wave voltage injection for a five-phase interior permanent magnet machine (IPMSM) drive. To avoid the utilization of low-pass f...
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Csaba Budai, László L. Kovács
Pág. 176 - 181
This paper investigates the stability of a digitally controlled pendulum with Coulomb friction as primary source of dissipation. We focus on the stabilizing effect of friction against vibrations due to the otherwise unstable parameter settings, and we sh...
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Csaba Budai, László L. Kovács
Pág. 266 - 271
In this paper, we investigate the combined effect of viscous damping and Coulomb friction on sampled-data mechanical systems. In these systems, instability can occur due the sampling of the applied discrete-time controller which is compensated by the two...
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Luca Bruzzone, Pietro Fanghella and Davide Basso
This paper presents an extension of impedance control of robots based on fractional calculus. In classical impedance control, the end-effector reactions are proportional to the end-effector position errors through the stiffness matrix K, while damping is...
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Luca Bruzzone, Pietro Fanghella and Mario Baggetta
The application of Fractional Calculus to control mechatronic devices is a promising research area. The most common approach to Fractional-Order (FO) control design is the PI?Dµ scheme, which adopts integrals and derivatives of non-integer order ? and µ....
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Ming-Fa Tsai, Chung-Shi Tseng and Bor-Yuh Lin
This paper presents the power factor control of a permanent magnet synchronous wind generator (PMSG) wind turbine using a phase voltage-oriented control (PVOC) scheme, which is different from the conventional rotor flux-oriented control (RFOC) method and...
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Oliver Ohneiser, Hartmut Helmke, Shruthi Shetty, Matthias Kleinert, Heiko Ehr, Sebastian Schier-Morgenthal, Saeed Sarfjoo, Petr Motlicek, ?arunas Murauskas, Tomas Pagirys, Haris Usanovic, Mirta Me?trovic and Aneta Cerná
Assistant Based Speech Recognition (ABSR) systems for air traffic control radiotelephony communication have shown their potential to reduce air traffic controllers? (ATCos) workload. Related research activities mainly focused on utterances for approach a...
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Hyowon Ban and Hye-jin Kim
This research is a pilot study to develop a maritime traffic control system that supports the decision-making process of control officers, and to evaluate the usability of a prototype tool developed in this study. The study analyzed the movements of mult...
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Paolo Tamburrano, Francesco Sciatti, Elia Distaso and Riccardo Amirante
This paper presents a feasibility study using a commercially available ring stack actuator to develop a four way-two position (4/2) high frequency switching digital hydraulic valve. The excellent characteristics of multilayer piezoelectric actuators, suc...
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Jean-Charles Maré
A top-down process is proposed and virtually validated for the position control of electromechanical actuators (EMA) that use conventional cascade controllers. It aims at facilitating the early design phases of a project by providing a straightforward me...
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Teemu Sillanpää, Alexander Smirnov, Pekko Jaatinen, Jouni Vuojolainen, Niko Nevaranta, Rafal Jastrzebski and Olli Pyrhönen
Non-contact rotor position sensors are an essential part of control systems in magnetically suspended high-speed drives. In typical active magnetic bearing (AMB) levitated high-speed machine applications, the displacement of the rotor in the mechanical a...
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Ping Zheng, Chengde Tong, Jingang Bai, Jing Zhao, Yi Sui and Zhiyi Song
The compound-structure permanent-magnet synchronous machine (CS-PMSM), comprising a double rotor machine (DRM) and a permanent-magnet (PM) motor, is a promising electronic-continuously variable transmission (e-CVT) concept for hybrid electric vehicles (H...
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Meagan K. Lowe, Farrah Anis Fazliatul Adnan, Sarah M. Hamylton, Rafael C. Carvalho and Colin D. Woodroffe
This study presents an analysis of shoreline change on reef islands using unmanned aerial vehicle (UAV)-derived orthomosaics and digital surface models (DSMs) collected on Sipadan Island, Sabah, Malaysia, and Sasahura Ite Island, Isabel Province, Solomon...
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Gergely Gyebrószki, Gábor Csernák
Pág. 148 - 155
Digital effects (quantization, sampling and delay) can lead to small amplitude chaotic oscillations, called micro-chaos [1, 2]. Often, these vibrations are neglected due to their small amplitude or replaced by random noise, but doing so one might b...
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Zhucui Jing, Ying Zheng and Hongli Guo
Hierarchical regression is used to empirically investigate the impact of digital capabilities on green innovation performance, as well as the mediating role of organizational agility and the moderating effect of knowledge inertia. Based on the data from ...
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Tian-Hua Liu, Muhammad Syahril Mubarok and Yu-Hao Xu
Field-excited flux-switching motor drive systems have become more and more popular due to their robustness and lack of need for a permanent magnet. Three different types of predictive controllers, including a single-step predictive speed controller, a mu...
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Sondre Nordås, Michael M. Beck, Morten K. Ebbesen and Torben O. Andersen
Digital displacement technology has the potential of revolutionizing the performance of hydraulic piston pumps and motors. Instead of connecting each cylinder chamber to high and low pressure in conjunction with the shaft position, two electrically-contr...
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Yuan-Chih Chang, Chi-Ting Tsai and Yong-Lin Lu
The current control of the permanent-magnet synchronous generator (PMSG) using an interval type-2 (IT2) Takagi-Sugeno (T-S) fuzzy systems is designed and implemented. PMSG is an energy conversion unit widely used in wind energy generation systems and ene...
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Ping Zheng, Chengde Tong, Jingang Bai, Jing Zhao, Yi Sui and Zhiyi Song
The compound-structure permanent-magnet synchronous machine (CS-PMSM), comprising a double rotor machine (DRM) and a permanent-magnet (PM) motor, is a promising electronic-continuously variable transmission (e-CVT) concept for hybrid electric vehicles (H...
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