|
|
|
| Exciter Field Current Amplifier Based on H Bridge Topology Circuit |
| Zhai Xiaofei, Liu Dezhi, Ouyang Bin |
| Naval University of Engineering Wuhan 430033 China |
|
|
|
|
Abstract An exciter field current amplifier based on H bridge topology circuit is proposed. This simple circuit which needs only two IGBTs can achieve a smaller size and lower cost. Its math model and simulation model are built in the paper, and both the simulation and experimental results show that this exciter field current amplifier is of fast dynamic performance and needs lower DC source current. Because of its suitable PWM duty rate which is between 0.5 to 0.8 and the faster discharging speed, the H bridge topology circuit is superior to the Buck circuit which has lower discharging speed and smaller duty rate in some specific working situation.
|
|
Received: 17 December 2007
Published: 14 February 2014
|
|
|
|
|
|
[1] 李基成. 现代同步发电机励磁系统设计及应用[M] . 北京: 中国电力出版社, 2002.
[2] 贾贵玺, 董钺, 张臣堂. 基于PWM控制的发电机励磁系统[J]. 天津大学学报, 2005, 38(10): 874-877.
[3] 李军, 李华峰. 基于斩波控制的新型励磁系统[J]. 电力自动化设备, 2006, 26(7): 13-17.
[4] 林渭勋. 现代电力电子电路[M] . 杭州: 浙江大学出版社, 2002.
[5] 邵伟, 徐政. 励磁系统参数整定研究[J] . 中国电机工程学报, 2002, 22(10): 12-17.
[6] 何丙茂. 对同步发电机励磁系统若干问题的思考[J]. 电网技术, 1999, 23(3):27-30. |
|
|
|
2009, Vol. 24 
