Influence of Parameter Variations on Operating Characteristics of MTPF Control for DTC-based PMSM Drive System

2018 ◽  
Author(s):  
Keisuke Fujii ◽  
Yukinori Inoue ◽  
Shigeo Morimoto ◽  
Masayuki Sanada
Keyword(s):  
Drive System ◽  
Operating Characteristics ◽  
Parameter Variations

Rigid-Flexible Coupling-Based CNC Machine Tool Feed Drive System Co-Simulation

2013 ◽  
Vol 694-697 ◽  
pp. 115-119
Author(s):  
Da Xing Zhao ◽  
Yong Yang ◽  
Wan Xu ◽  
Guo Long Ding ◽  
Ling Peng
Keyword(s):  
Machine Tool ◽  
High Speed ◽  
Drive System ◽  
Cnc Machining ◽  
Ball Screw ◽  
Machining Accuracy ◽  
Operating Characteristics ◽  
Flexible Coupling ◽  
Feed Drive ◽  
Feed Drive System

High-speed high-precision CNC processing technology plays a very important position in the CNC machining industry,machine disturbance,however,an important factor affecting the machining accuracy,the ball screw feed drive as an important part of the machine directly affects the operating characteristics of the machine.Ball screw drive system,Solidworks,Ansys,Adams the establishment of machine tool,rigid-flexible couping the multibody dynamics model,the dynamic characteristic curve of the machine.Compared with the rigid body model simulation results verify the feasibility of rigid-flexible coupling modeling method,optimized to provide the basis of the structural design of the machine components.

scholarly journals Selected Issues of Hybrid Outboard Motors

2019 ◽  
Vol 26 (4) ◽  
pp. 56-60
Author(s):  
Wojciech Leśniewski
Keyword(s):  
Laboratory Test ◽  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Operating Conditions ◽  
Drive System ◽  
Operating Characteristics ◽  
Hybrid Drive ◽  
Test Rig

Abstract The aim of the research reported in the article was designing a hybrid drive system based on an outboard internal combustion engine offered by a selected producer and testing its operating characteristics. The article presents different designs of this type of drive which can be found in the literature and are available in the market. The designed hybrid outboard drive system was tested both on the laboratory test rig and in real operating conditions. The results of these tests are included.

Overview Study of Multi-Dynamic Coupling Drive System on EV

2013 ◽  
Vol 288 ◽  
pp. 125-129
Author(s):  
Xiao Hua Wu ◽  
Wei Li
Keyword(s):  
Energy Saving ◽  
Electric Vehicles ◽  
Ride Comfort ◽  
Drive System ◽  
Total Efficiency ◽  
Operating Characteristics ◽  
Dynamic Coupling ◽  
Vehicle Performance ◽  
Power Sources ◽  
Energy Saving Potential

The multi-dynamic coupling drive system can coordinate the operating characteristics of all power sources, optimize the total efficiency and driving characteristic of the drive system, and hence improve the performance of electric vehicles. Therefore, it has greater energy saving potential and better prospects. Under the premise of meeting the needs of electric vehicle performance, how to synthesis and decompose the output power of the different power sources reasonablely and efficiently is the core problem. There are a number of driving modes existing in the the multi-dynamic coupling drive electric vehicles. The coordination control of the torque of related power sources during the transition among different modes is essential to vehicle’s power and ride comfort performance. It is meaningful to improve the system efficiency and drivability performance by control strategy, while ensuring the capability of energy saving and emission reduction.

Kriteriumsbezogene Cut-Off-Werte für Tätigkeitsspielraum und Arbeitsintensität

Diagnostica ◽  
2019 ◽  
Vol 65 (3) ◽  
pp. 179-190 ◽  
Author(s):  
Vincent Mustapha ◽  
Renate Rau
Keyword(s):  
Receiver Operating Characteristics ◽  
Operating Characteristics ◽  
Receiver Operating

Zusammenfassung. Cut-Off-Werte ermöglichen eine ökonomische, binäre Beurteilung von Summenscores. Für Beanspruchungsfragebögen, die personenbezogene Merkmale erfragen, sind Cut-Off-Werte häufig vorhanden und in der klinischen Diagnostik unerlässlich. Für die Bewertung von Arbeitsmerkmalen sind Cut-Off-Werte ebenfalls wünschenswert. Bislang fehlen sie jedoch für die Beurteilung von Arbeitsmerkmalen wie Arbeitsintensität und Tätigkeitsspielraum. Zwischen 2006 und 2016 wurden daher in verschiedenen Branchen 801 objektive Arbeitsplatzanalysen durchgeführt, welche eine Unterteilung in gut und schlecht gestalteten Tätigkeitsspielraum sowie gut und schlecht gestaltete Arbeitsintensität nach DIN EN ISO 6385 (2016) ermöglichen. Anhand dieser Unterteilung wurden mit der Receiver-Operating-Characteristics-Analyse Cut-Off-Werte für den subjektiv-bedingungsbezogen Fragebogen zum Erleben von Arbeitsintensität und Tätigkeitsspielraum (FIT; Richter et al., 2000 ) ermittelt. Für den Tätigkeitsspielraum weisen Summenscores ≤ 22 und für die Arbeitsintensität Summenscores ≥ 15 auf eine schlechte Gestaltung des jeweiligen Arbeitsmerkmals hin. Anhand einer weiteren Stichprobe von 1 076 Arbeitenden konnte gezeigt werden, dass Arbeitende mit schlecht gestaltetem Tätigkeitspielraum vital erschöpfter sowie weniger engagiert sind und Arbeitende mit schlecht gestalteter Arbeitsintensität eine höhere Erholungsunfähigkeit sowie vitale Erschöpfung aufweisen.

Operating characteristics of unit and group connected generator-HVDC converter schemes

1993 ◽  
Vol 140 (6) ◽  
pp. 503 ◽  
Author(s):  
J. Arrillaga ◽  
J.R. Camacho ◽  
S.J. MacDonald ◽  
C.P. Arnold
Keyword(s):  
Operating Characteristics
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