Realization of time-optimal single-step velocity response control of field oriented induction machines under the condition of nonsaturation of flux

2003 ◽  
Author(s):  
S. Sangwongwanich ◽  
S. Okuma ◽  
Y. Uchikawa ◽  
M. Ishida ◽  
K. Iwata
Keyword(s):  
Induction Machines ◽  
Single Step ◽  
Response Control ◽  
Step Velocity ◽  
Velocity Response ◽  
Time Optimal

scholarly journals Time-Optimal Velocity Response Control of Induction Motor

1988 ◽  
Vol 108 (9) ◽  
pp. 729-736
Author(s):  
Somboon Sangwongwanich ◽  
Muneaki Ishida ◽  
Shigeru Okuma ◽  
Koji Iwata
Keyword(s):  
Induction Motor ◽  
Response Control ◽  
Optimal Velocity ◽  
Velocity Response ◽  
Time Optimal

scholarly journals Multi-Step Finite Control Set Model Predictive Control For Three-level APF

2021 ◽  
Vol 257 ◽  
pp. 01087
Author(s):  
DeJiYang Zong ◽  
Shifeng Hu ◽  
XuGuang Yang
Keyword(s):  
Tracking Error ◽  
Control Process ◽  
Prediction Method ◽  
Relevant Information ◽  
Single Step ◽  
Optimal Switching ◽  
Harmonic Compensation ◽  
Finite Control ◽  
Time Optimal ◽  
Control Set

Compared with the two-level APF, the three-level neutral point clamped (ANPC) has more output levels, less harmonic influence, and lower equipment loss in the process of harmonic compensation. However, due to the conservatism of single-step prediction, it can only provide the reliability at k+1 time, and it does not provide the relevant information for the next time optimal. Moreover, the control of threelevel APF needs to consider multiple targets at the same time, which will cause certain tracking error. In this paper, a multi-step prediction method is proposed. The optimal and suboptimal switching states at k+1 are obtained by cycling. The optimal switching states in two control cycles can be obtained by substituting the optimal switching states at k+2. The method improves the reliability of the control process, and the simulation results show that the harmonic content of the power grid is low, which meets the relevant requirements.

V884: Demonstration of a Novel Single-Step Percutaneous Access Sheath for Nephrostolithotomy: A Video Presentation

2005 ◽  
Vol 173 (4S) ◽  
pp. 240-240
Author(s):  
Premal J. Desai ◽  
David A. Hadley ◽  
Lincoln J. Maynes ◽  
D. Duane Baldwin
Keyword(s):  
Single Step ◽  
Video Presentation ◽  
Percutaneous Access ◽  
Access Sheath
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