System design of transmission line icing detection based on remote control model aircraft

Author(s):  
Xu Liu ◽  
Junjie Yang ◽  
Ming Zhu ◽  
Chunjuan Wei ◽  
Xiangwen Wang
IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 148606-148621 ◽  
Author(s):  
Andrew J. Fairbanks ◽  
Adam M. Darr ◽  
Allen L. Garner

Author(s):  
Joan Sebastian ChavesHuertas ◽  
Jhair Acosta Sarmiento ◽  
Maria Cristina Tavares

1984 ◽  
Vol 106 (2) ◽  
pp. 157-162 ◽  
Author(s):  
J. Watton

The open-loop response of servovalve-controlled single-rod linear actuators in investigated for both the extending and retracting cases. A linearized frequency response technique is used to establish the probable type of dynamic behavior. Nondimensional results are presented as an aid to system design, and a boundary is established such that a simplified approximation may be used. A particular class of system is then examined where interconnecting transmission lines would be important, and the techniques previously used are modified accordingly. The techniques are verified with a precision actuator developed for fatigue testing of vehicle and airframe systems.


2016 ◽  
Vol 12 (04) ◽  
pp. 11 ◽  
Author(s):  
Karsten Henke ◽  
Tobias Vietzke ◽  
Heinz-Dietrich Wuttke ◽  
Steffen Ostendorff

Based on a grid concept of an interactive hybrid online laboratory we will describe different fields of applications in different learning scenarios. This infrastructure guaranties a reliable, flexible as well as robust usage of this online lab. By using GOLDi, students are able to design control algorithms with different specification techniques to control electro-mechanical hardware models in the online lab. Additionally, the reconfigurable rapid prototyping platform of the GOLDi system can be used to test all the taught topics of a given lectures in the field of digital system design. Finally, a special demonstration platform (a ball in a labyrinth on a balance plate) can be used to give the students a better feeling about the possibilities and limitations of remote control and observation via Internet and to evaluate these technologies critically.


2013 ◽  
Vol 313-314 ◽  
pp. 347-354
Author(s):  
Yu Quan Liu ◽  
Huang Sheng Hua ◽  
Li Wang

For a long time, settings complexity makes the settings remote modification technology is difficult to be applied on the relay protective devices effectively. To solve the key technical problems of relay protective devices settings remote modification, this paper makes an in-depth research of setting group remote control model. The setting group remote control model based on protective relaying and fault information system is proposed with the setting group services mapping between IEC61850 and IEC60870-5-103. The setting group remote control models working mechanism is deeply analysed via the setting group views. Base on the analysis, an enhanced control flow and task block method are provided to avoid the edit setting group data being changed abnormally, which improves the reliability of setting group remote control remarkably. The setting group remote control model introduced in this paper is applied successfully and its reliability is approved.


Author(s):  
W. A. Stygar ◽  
P. A. Corcoran ◽  
H. C. Ives ◽  
R. B. Spielman ◽  
J. W. Douglas ◽  
...  

2015 ◽  
Vol 16 (3) ◽  
pp. 233-241 ◽  
Author(s):  
Mohamad Nassereddine ◽  
Jamal Rizk ◽  
Mahmood Nagrial ◽  
Ali Hellany

Abstract High-voltage earthing system design is required to ensure safety compliance and adequate operation of the high-voltage infrastructures. The transmission lines form a solid part of the high-voltage infrastructure. The underground to overhead (UGOH) pole earth grid is one of the main challenges when it comes to transmission line earthing system design. To ensure safety compliance at low cost, counterpoise earthing is used at the UGOH pole for the underground lines. The counterpoise aids in lowering the UGOH pole earth grid resistance. This paper addresses the counterpoise analysis as currently being studied. Furthermore, it introduces the counterpoise mutual voltage between the faulted phase and the counterpoise and its impact at the UGOH pole earth potential rise. Case study is included.


2017 ◽  
Vol 139 (06) ◽  
pp. S14-S18
Author(s):  
Takeshi Hatanaka ◽  
Nikhil Chopra ◽  
Junya Yamauchi ◽  
Mamoru Doi ◽  
Yasunori Kawai ◽  
...  

This article presents a novel semiautonomous cooperative robotic system. Information flows in the architecture are designed based on the passivity property. The human passivity needed to guarantee the control goal is demonstrated using a human-in-the-loop simulator and system identification techniques. As a solution to stable coordination via bilateral human–swarm interactions, the research group built the system consisting of multiple planar robots, an operator and a computer whose role is to implement the distributed motion synchronization law. Experimental results on remote control of the robots are finally demonstrated. A typical approach to stabilization of an interconnected system that includes a highly uncertain component like a human operator is to assume passivity of the component block. Specifically, modeling of the operator has been addressed in this manner for several studies in bilateral teleoperation. It is observed from the figures provided in the article that the robots form and maintain the specified formation while they are maneuvered stably toward the desired references by the operator.


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