基本信息:
- 专利标题： 基于振动信号短时能熵比与DTW的高压断路器状态评估方法
- 专利标题（英）：State evaluation method for high-voltage circuit breaker based on short-time energy entropy ratio and DTW of vibration signals
- 申请号：CN201911008524.4 申请日：2019-10-22
- 公开(公告)号：CN110824344A 公开(公告)日：2020-02-21
- 发明人： 周国伟 , 董建新 , 杨松伟 , 徐华 , 周建平 , 郦于杰 , 陈欣 , 姚晖 , 刘江明 , 陈晓锦 , 汪全虎 , 刘德 , 邓华 , 戴鹏飞 , 李文燕 , 艾云飞 , 刘昌标 , 张翾哲 , 万书亭 , 豆龙江 , 张燕珂
- 申请人： 国网浙江省电力有限公司检修分公司 , 国网浙江省电力有限公司 , 华北电力大学(保定)
- 申请人地址： 浙江省杭州市萧山区红垦路318号
- 专利权人： 国网浙江省电力有限公司检修分公司,国网浙江省电力有限公司,华北电力大学(保定)
- 当前专利权人： 国网浙江省电力有限公司检修分公司,国网浙江省电力有限公司,华北电力大学(保定)
- 当前专利权人地址： 浙江省杭州市萧山区红垦路318号
- 代理机构： 浙江翔隆专利事务所
- 代理人： 王晓燕
- 主分类号： G01R31/327
- IPC分类号： G01R31/327 ; G01M13/00
The invention discloses a state evaluation method for a high-voltage circuit breaker based on the short-time energy entropy ratio and DTW of vibration signals, and relates to state evaluation methods.At present, the state evaluation of the high-voltage circuit breaker cannot give consideration to rapidness, accuracy and intuition. The method of the invention comprises the following steps: framingvibration signals of the circuit breaker under a normal working condition and vibration signals of the circuit breaker under an unknown working condition, and calculating the short-time energy entropy ratios of the two groups of vibration signals; obtaining an optimal matching path of two input vectors by taking the short-time energy entropy ratio calculated from the signals in the normal condition as the reference vector and the short-time energy entropy ratio calculated from the signal in the unknown condition as a test vector input DTW; and determining the work state of the circuit breakeraccording to a charge curve of the matching path. Thus, the short-time energy entropy ratio serves as the DTW input vector for fault diagnosis, the vibration signals in the normal condition serves asthe reference, and the operation state of the circuit breaker can be evaluated and determined rapidly, accurately and visually.
IPC结构图谱:
| G | 物理 |
| --G01 | 测量；测试 |
| ----G01R | 测量电变量；测量磁变量（通过转换成电变量对任何种类的物理变量进行测量参见G01类名下的 |
| ------G01R31/00 | 电性能的测试装置；电故障的探测装置；以所进行的测试在其他位置未提供为特征的电测试装置 |
| --------G01R31/327 | .电路断续器、开关或电路断路器的测试 |