Design for Compression Improvement of a Magnetic Pulse Compressor by Using a Multiwinding Magnetic Switch

• Published in: IEEE transactions on plasma science Vol. 45; no. 12; pp. 3252 - 3257
• Main Authors: Rhee, Jae-Ho, Cho, Young-Maan, Kim, Se-Hoon, Ko, Kwang-Cheol
• Format: Journal Article
• Language: English
• Published: New York IEEE 01-12-2017; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Coils (windings); Energy exchange; Energy transfer; Inductance; Magnetic materials; Magnetic pulse compressor (MPC); magnetic switch (MS); multiwinding; Pulse duration; Pulse width modulation; Saturation; Saturation magnetization; Switches; Windings
• ISSN: 0093-3813; 1939-9375
• DOI: 10.1109/TPS.2017.2767067

In a magnetic pulse compressor (MPC), the saturation inductance of the magnetic switch (MS) determines the energy transfer time. Thus, in general, the number of windings on the MS is modulated to vary the saturation inductance. Changing the number of windings also changes the energy transfer time and the saturation time. In this paper, we propose and analyze an MS with multiwindings to modulate the pulse width without affecting the saturation time of the MS. The parallel structure of the multiwindings on the MS decreases the energy transfer time without affecting the saturation time. Through experiments, we show that the energy transfer time is decreased by 13% via a double winding MS. Therefore, an MS with multiwindings can be used to modulate the pulse width at the last stage of the MPC without affecting the saturation time of the MS.