| 引用本文: | 王维俭,桂林,王雷,王立群,唐渝南.发电机失磁保护定值整定的讨论——对2007年版《IEEE Guide for AC Generator Protection》的斟酌[J].电力自动化设备,2009,(3): |
| .Discussion on setting calculation of generator loss-of-excitation protection:thinking of IEEE Guide for AC Generator Protection published in 2007[J].Electric Power Automation Equipment,2009,(3): |
|
|
| 摘要: |
| 对2007年版中失磁保护定值整定的几个问题提出不同意见.明确指出:发电机失磁故障必有滑差(s),其平均异步阻抗Xd(js)<
|
| 关键词: 发电机 失磁保护 定值整定 异步边界阻抗圆 静稳极限阻抗圆 |
| DOI： |
| 分类号:TM307 |
| 基金项目: |
|
| Discussion on setting calculation of generator loss-of-excitation protection:thinking of IEEE Guide for AC Generator Protection published in 2007 |
|
WANG Weijian1 GUI Lin1 WANG Lei2 WANG Liqun2 TANG Yunan2
|
| Abstract: |
| Opinions different from the setting calculation of loss-of-excitation protection in IEEE Std C37.102TM-2007 IEEE Guide for AC Generator Protection are proposed. It is clearly and definitely pointed out that:when loss-of-excitation occurs,there must be slip,the average asynchronous impedance Xd(js) is much smaller than Xd(s=0),while the lower setting of impedance element is-Xd,which is far enough,-(1.1~1.25)Xd is not necessary; in the coordinates transformation formula between P-Q and R-X,the voltage U shoul... |
| Key words: generator loss-of-excitation protection setting calculation asynchronous limit impedance circle steady-state stability limit impedance circle |
