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| 1 | Review of optical fibre sensors for electrical equipment characteristic state parameters detection显示文摘Optical fibre sensing technology is a powerful method for long-term reliable sensing in harsh environments,which means it is particularly suitable for the detection of electrical equipment characteristic state parameters,including characteristic gases,abnormal vibration,ultrasonic produced by partial discharge,and abnormal temperature rise.This paper reviews several individual optical fibre sensors for different state parameters detection,discusses the advantages,limitations and possible improvement methods,and finally presents the most promising optical fibre sensor for each state parameter. | Weigen Chen Jianxin Wang Fu Wan Pinyi Wang | 2019 | High Voltage2019，4，4： | 4 |
| 2 | Oil‐paper insulation partial discharge ultrasonic multifrequency sensing array based on fibre‐optic Fabry-Perot sensor显示文摘In order to improve the sensitivity and accuracy of oil‐paper insulation partial discharge detection by the fibre‐optic Fabry-Perot(FP)ultrasonic sensor,this work studied the ultrasonic signal’s frequency characteristics of typical oil‐paper insulation partial dis-charges and the vibration characteristics of the FP sensor’s diaphragm in the liquid environment.Based on the works above,a multifrequency FP sensor array is proposed,consisting of several FP sensors with different resonant frequencies to detect partial discharges.The experimental results show that the liquid environment has a significant effect on the vibration characteristics of the FP sensor’s diaphragm,and the sensitivity and accuracy of partial discharge detection can be improved based on the multifrequency FP sensing array,which can also be applied in the pattern recognition and localisation of partial discharges. | Zhixian Zhang Jiali Lei Weigen Chen Tianhe Yang Yuxuan Song Kejie Wu Fan Liu | 2022 | High Voltage2022，7，2： | 1 |
| 3 | Wavelet Networks in Power Transformers Diagnosis Using Dissolved Gas Analysis显示文摘 | Weigen Chen Chong Pan Yuxin Yun | | 0，，01： | 1 |
| 4 | A new broadband micro-current transducer for insulator leakage current monitoring system显示文摘 | Chen Weigen Yao Chenguo Sun Caixin | 2008 | IEEE Transactions on Power Delivery2008，23，1： | 1 |
| 5 | Frequency locking and threshold current lowering effect of quantum cascade laser and an application in gas detection field显示文摘 | Chen Weigen Wan Fu Zou Jingxin | 2015 | Chinese Physics B2015，30，02： | 1 |
| 6 | Wavelet Networks in Power Transformers Diagnosis Using Dissolved Gas Analysis显示文摘 | Weigen Chen Chong Pan Yuxin Yun | 2009 | iEEE Transactions on Power Delivery2009，24，1： | 1 |
| 7 | Nonlinear ocean internal waves observed by multifrequency synthetic aperture radar显示文摘A numerical model which consists of the Korteweg-de Vries (KdV) equation, the action balance equation and the radar backscattering model is developed to simulate the frequency dependence of synthetic aperture radar (SAR) remote sensing of nonlinear ocean internal waves. Multifrequency data collected by NASA SIR-C SAR and NASA JPL AIRSAR are used as comparison. Case studies show that the results of simulation agree well with the results of SAR data. | YANG Jingsong XIAO Qingmei HUANG Weigen FU Bin CHEN Peng | 2008 | Acta Oceanologica Sinica2008，27，z1： | 1 |
| 8 | Wavelet networks in power transformers diagnosis using dissolved gas analysis显示文摘 | CHEN Weigen PAN Chong | 2009 | IEEE Trans Power Del2009，24，1： | 1 |
| 9 | A new broadband micro-current transducer for insulator leakage current monitoring system显示文摘 | Chen Weigen Yao Chenguo Sun Caixin | | 0，，01： | 1 |
| 10 | A new Method of Diagnosing the Loop of Heat Faults for Transformer显示文摘 | Caixin Sun | 2001 | 5th IPEC2001，，05： | 1 |
| 11 | Study on Fault Diagnose Methods of Transformer DGA with Fuzzy Model Hiberarchy Classification显示文摘 | Caixin Sun | 2000 | ICMEP''2000，，09： | 1 |
| 12 | A new broadband micro-current transducer for insulator leakage current monitoring system 显示文摘 | Chen Weigen Yao Chenguo Sun Caixin | 2008 | IEEE Transactions on Power Delivery2008，23，1： | 1 |
| 13 | Multi-parameter Fault ProbabilityEvaluation Method of Large Generator显示文摘 | HE Yingchun WANG Youyuan CHEN Weigen | 2012 | 高电压技术2012，38，8： | 1 |
| 14 | A new broad band micro-current transducer for insulator leakage current monitoring system显示文摘 | Chen Weigen Yao Chenguo Sun Caixin | 2008 | IEEE Transactions on Power Delivery2008，23，1： | 1 |
| 15 | Wavelet networks in power transformers diagnosis using dissolved gas analysis显示文摘 | Chen Weigen Pan Chong Yun Yuxin | 2009 | IEEE Transactions on Power Delivery2009，24，1： | 1 |
| 16 | Equivalent Circuit for Cavity Discharges Including Controlled Current Source and Controlled Switch显示文摘Numerous equivalent circuits for cavity discharges have been developed, yet most of these models cannot provide simulated sig- nals that precisely reveal the variability of the discharge’s characteristic parameters, such as repetition rate, magnitude and phase of discharges, which makes them not suitable for intensive studies of discharge process. Therefore, using Simulink code, we theoretically ana- lyzed and studied the classical equivalent circuits of cavity discharges, as well as the influence of circuit components on simulation results, and then proposed a novel equivalent circuit, the key parameters of which were determined according to the physical behavior of cavity discharges. In the novel equivalent circuit, the repetition rate can be changed by discharge resistance, inception and residual voltages; meanwhile the phase of discharge can be controlled by adjusting the parameters of shunt resistance. Furthermore, a controlled current source as a function of space charge is introduced in the equivalent circuit. Compared with the former ones, the simulated signals obtained by this novel model are better approximation of real signals. This work could be referred by latter studies of the characteristics and the me- chanisms of cavity discharge in oil-paper insulation. | CHEN Weigen CHEN Xi XIE Bo LIU Jun | 2013 | 高电压技术2013，39，8： | 1 |
| 17 | Using a sensitive optical system to analyze gases dissolved in samples extracted from transformer oil显示文摘 | Wan Fu Chen Weigen Wang Caisheng | 2014 | IEEE Electrical Insulation Magazine2014，30，5： | 1 |
| 18 | Using a sensitive optical system to analyze gases dissolved in samples extracted from transformer oil显示文摘 | Wan Fu Chen Weigen Wang Caisheng | 2014 | IEEE Electrical Insulation Magazine2014，30，5： | 1 |
| 19 | Characteristics of Photoacoustic Spectroscopy Detection for Carbon Monoxide Gas Based on DFB Diode Laser显示文摘 | CHEN Weigen PENG Xiaojuan LIU Bingjie SUN Caixin | 2012 | 中国电机工程学报2012，32，13： | 0 |
| 20 | Raman spectrum feature extraction and diagnosis of oil-paper insulation ageing based on kernel principal component analysis显示文摘Raman spectroscopy, with its specific ability to generate a unique fingerprint‐like spec-trum of certain substances, has attracted much attention in diagnosing the ageing degree of oil-paper insulation. In this study, the feature extraction and ageing diagnosis methods of oil-paper insulation Raman spectroscopy data are further studied. Based on the non‐linear analysis of Raman spectra of different ageing samples, kernel principal component analysis was applied to extract the spectral features, and the back‐propagation neural network was used to build a diagnosis model with high diagnostic accuracy. The results show that Raman spectroscopy combined with kernel principal component analysis and the back‐propagation neural network can diagnose the ageing state of oil-paper insu-lation, with a diagnostic accuracy of 91.43% (64/70). The proposed method provides an effective and feasible method for the ageing assessment of oil‐immersed electrical equipment. | Dingkun Yang Chen Weigen Shi Haiyang Wan Fu Zhou Yongkuo | 2021 | High Voltage2021，6，1： | 0 |
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