Control of a Power Supply with Cycling Current Using Different Controllers

被引：0
|
作者：
Roque, Antonio [1 ]
Maia, Jose [1 ]
Margato, Elmano [2 ]
Sousa, Duarte M. [3 ]
Marques, Gil [3 ]
机构：
[1] ESTSetubal Inst Politecn Setubal, Dept Elect Engn, Setubal, Portugal
[2] ISEL &INESCID, Ctr Elect Elect Ind, Lisbon, Portugal
[3] Univ Lisbon, Inst Super Tecn & INESCID, Dept Elect & Comp Engn, Lisbon, Portugal
来源：
2014 INTERNATIONAL SYMPOSIUM ON POWER ELECTRONICS, ELECTRICAL DRIVES, AUTOMATION AND MOTION (SPEEDAM) | 2014年
关键词：
power supply; flux density; current; control; Fast Field Cycling NMR; relaxometer; NMR;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Fast Field Cycling (FFC) Nuclear Magnetic Resonance (NMR) relaxometers require controlled current sources in order to get accurate flux density with respect to its magnet. The main elements of the proposed solution are a power semiconductor, a DC voltage source and the magnet. The power semiconductor is commanded in order to get a linear control of the flux density. To implement the flux density control, a Hall Effect sensor is used. Furthermore, the dynamic behavior of the current source is analyzed and compared when using a PI controller and a PD2I controller.
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页码：560 / 565
页数：6
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