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Investigation of superconducting linear synchronous motor propulsion control via an exact mathematical model
Author(s) -
Sakamoto Tetsuzo
Publication year - 1999
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/(sici)1520-6416(19990730)128:2<45::aid-eej6>3.0.co;2-7
Subject(s) - cascade , control theory (sociology) , integrator , block diagram , propulsion , track (disk drive) , controller (irrigation) , control engineering , block (permutation group theory) , linear motor , engineering , linear induction motor , control system , power (physics) , computer science , control (management) , induction motor , voltage , physics , mathematics , electrical engineering , mechanical engineering , aerospace engineering , agronomy , geometry , quantum mechanics , artificial intelligence , chemical engineering , biology
This paper describes the performance of the superconducting linear synchronous motor control system used for a transportation vehicle by using an exact dq 0‐axis mathematical model. The paper first shows the detailed block diagram of the speed control system, which includes the blocks of propulsion force and speed emf computations. A detailed discussion is devoted to the design of the control system. A cascade control system with PI controllers is designed as a numerical demonstration. It is also pointed out that the cascade control structure is a natural form for the power feeding method with three inverters. Performance simulations are shown for severe track conditions such as tunnel and track gradients as well as in a normal case. It is demonstrated that integrator windup of the speed controller can occur in the case of a severe condition in which one of the inverters is disabled. We present a design with more robustly stable performance by designing an antiwindup controller. © 1999 Scripta Technica, Electr Eng Jpn, 128(2): 45–52, 1999