Controlled Dynamic Braking for Switched Reluctance Motor Drives With a Rectifier Front End

被引:31
作者
Yang, Sheng-Ming [1 ]
Chen, Jian-Yu [2 ]
机构
[1] Natl Taipei Univ Technol, Dept Elect Engn, Taipei 106, Taiwan
[2] Delta Elect Inc, Taipei 114, Taiwan
关键词
DC-link voltage; dynamic braking; switched reluctance motor (SRM); DIODE RECTIFIER; AC DRIVES; SCHEME;
D O I
10.1109/TIE.2012.2233696
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Switched reluctance motors (SRMs) have ease of manufacturing, low cost, and robustness in withstanding centrifugal force advantages. Therefore, they are very suitable for high-speed applications. However, when running at high speeds, rapid braking becomes difficult because the regeneration energy may increase the dc-link voltage to a critical level if a diode rectifier bridge is used for ac-dc conversion. This paper investigates the relationship between the regeneration energy and the dc-link voltage and proposes an electric braking scheme employing two-phase excitations. During braking, instead of regenerating the excessive rotor kinetic energy back to the dc link, the energy is dissipated in the stator winding resistance. Therefore, the rotor can stop safely within a short time. The proposed control scheme is verified experimentally using a four-phase SRM.
引用
收藏
页码:4913 / 4919
页数:7
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