Title :
A control method of excitation winding magnetization for a novel HTS magnetic flux pump
Author :
Wu, Chunli ; Lv, Fengchao ; Chen, Ying
Author_Institution :
Sch. of Inf. Sci. & Eng., Northeastern Univ., Shenyang, China
Abstract :
The main purpose of magnetic flux pump is to stabilize magnetic field of superconducting magnets. This paper chiefly presents a kind of control method to magnetize excitation winding and control system design for a novel high temperature superconducting(HTS) magnetic flux pump. The basic structure and operation principle of the flux pump is simply described here. According to a stated magnetizing sequence of 7-pairs of magnetic poles, we use a singlechip to control the excitation winding to be magnetized one by one. The whole control system has been designed and developed, and the working performance has been tested. The experimental result shows that by this kind of control method, magnetic flux can be smoothly pumped into the HTS closed loop system, consequently compensate the magnetic field decay and make the HTS magnet operate in persistent current mode.
Keywords :
closed loop systems; control system synthesis; excited states; magnetic flux; pumps; stability; superconducting critical field; superconducting magnets; windings; HTS closed loop system; HTS magnetic flux pump; control system design; excitation winding magnetization; high temperature superconducting magnetic flux pump; magnetic field decay; magnetic field stabilization; magnetic pole; stated magnetizing sequence; Control systems; High temperature superconductors; Magnetic circuits; Magnetic fields; Magnetic flux; Superconducting magnets; Windings; Excitation Winding; Magnetic Flux pump; Magnetization; Singlechip Control;
Conference_Titel :
Control and Decision Conference (CCDC), 2011 Chinese
Conference_Location :
Mianyang
Print_ISBN :
978-1-4244-8737-0
DOI :
10.1109/CCDC.2011.5968866
