WEKO3
アイテム
高電圧絶縁診断のための高いノイズ耐性を有する革新的な広帯域UHFセンサの開発
https://doi.org/10.18997/00009018
https://doi.org/10.18997/000090188110b248-5f0b-4e1c-b75e-e5018d9c6bb1
| 名前 / ファイル | ライセンス | アクション |
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kou_k_551.pdf (10.9 MB)
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| アイテムタイプ | 学位論文 = Thesis or Dissertation(1) | |||||||
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| 公開日 | 2022-12-01 | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||
| 資源タイプ | doctoral thesis | |||||||
| タイトル | ||||||||
| タイトル | Development of a Novel Wideband UHF Sensor with High Noise Resistance Ability for High Voltage Insulation Diagnosis | |||||||
| 言語 | en | |||||||
| タイトル | ||||||||
| タイトル | 高電圧絶縁診断のための高いノイズ耐性を有する革新的な広帯域UHFセンサの開発 | |||||||
| 言語 | ja | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 著者 |
Bandi, Tuvshinbayar
× Bandi, Tuvshinbayar
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| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | Partial discharge （PD） is a pre-breakdown phenomenon that can cause the insulation deterioration of HV equipment. Thus, detection of PD signals enables us to evaluate the insulation condition and avoid catastrophic breakdown. This also brings the reliable operation of the electric power system consisting of the HV equipment. The UHF method, one of the PD detection methods on the PD-emitted EM wave in the UHF bands, has been widely used in the electric power system because this method has many advantages, such as a non-direct connection with the HV circuit, high sensitivity, quick response and so on. However, the rapid development of ICT and digital technologies could impact the PD detection by the UHF method in view of the noise interference by the communication waves, consequently reducing the UHF sensor’s sensitivity and detection ability. Thus, eliminating the communication noise is strongly required in parallel with the wideband PD detection in the UHF method. Under this background, this dissertation dealt with the development of the wideband UHF sensor with high noise resistance ability for PD detection under noise conditions. The Multiple Narrow Band （MNB） antenna, a newly proposed and developed wideband UHF sensor with high noise resistance, was designed and optimized based on the theoretical and experimental discussion. The MNB antenna satisfies the main requirements of the UHF sensor and has excellent properties; wideband detection （more than 1 GHz） and high noise resistance for the communication and ISM bands （S11 > -6 dB）. The design rule was summarized as a flowchart to develop the MNB antenna with different detection and elimination frequencies depending on the purpose （Chapter 3）. The discharge detection property of the MNB antenna was clarified and compared with the HA based on the PD experiments. As a result, it was proved that the MNB antenna could detect different PD signals from the different insulations and discharge types, and the signal intensity, i.e., the peak to peak amplitude of the antenna output, of the MNB antenna showed a good correlation with that of the HA （Chapter 4）. The noise resistance ability of the MNB antenna was extracted using the PD in SF6 gas under the noise source experiment. The MNB antenna can detect the PD signal under noise conditions with a higher signal-noise ratio （SNR） than HA under elimination frequency noises. The PD in SF6 gas under drone noise （2.4 GHz, Wi-Fi） experiment was performed to make practical conditions. The 100 times measurement result showed that the PD detection rate under drone noise was 1% and 94% for HA and MNB antenna, respectively. The PD signal and drone noise repetition rates were investigated to understand the advantage of MNB antenna compared with HA. As a result, it was observed that the PD signal repetition was much lower than drone noise repetition for HA, while the drone noise repetition was lower than PD signal repetition for the MNB antenna because of the noise resistance ability （Chapter 5）. The communication noise elimination ability of the MNB antenna was further improved by adding the low-pass filtering function without size extension. The Filtered Multiple Narrow Band （FMNB） antenna was designed with higher noise resistance than the MNB antenna. This enhancement increased the Wi-Fi noise resistance ability from 15 dBm to more than 30 dBm. Due to this noise reduction, the FMNB antenna detected the PD signal under drone noise with a noticeable higher SNR than the MNB antenna. In addition, the microstrip filter can be designed for different frequency bands to resist certain noises. Moreover, the MNB antenna can be designed for different PD signals, and different noise condition depends on the purpose by adjusting the detection and elimination frequencies. It means the MNB antenna can be used in all types of HV equipment as a UHF sensor. Also, the noise resistance ability makes the MNB antenna is suitable to cooperate with other ICT and digital technology as a wireless and smart sensor. （Chapter 6）. | |||||||
| 言語 | en | |||||||
| 目次 | ||||||||
| 内容記述タイプ | TableOfContents | |||||||
| 内容記述 | 1 Introduction||2 Experimental Setup and Procedure||3 Design of a Novel UHF Sensor for PD Detection||4 Discharge Detection Properties of a Multiple Narrow Band Antenna||5 Noise Resistance Properties of a Multiple Narrow Band antenna||6 Enhanced Filtered Multiple Narrow Band Antenna||7 Conclusions | |||||||
| 備考 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 九州工業大学博士学位論文 学位記番号: 工博甲第551号 学位授与年月日: 令和4年3月25日 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | UHF sensor | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Partial discharge detection | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Noise resistance | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Insulation diagnosis | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Multiple band antenna | |||||||
| アドバイザー | ||||||||
| 大塚, 信也 | ||||||||
| 学位授与番号 | ||||||||
| 学位授与番号 | 甲第551号 | |||||||
| 学位名 | ||||||||
| 学位名 | 博士（工学） | |||||||
| 学位授与年月日 | ||||||||
| 学位授与年月日 | 2022-03-25 | |||||||
| 学位授与機関 | ||||||||
| 学位授与機関識別子Scheme | kakenhi | |||||||
| 学位授与機関識別子 | 17104 | |||||||
| 学位授与機関名 | 九州工業大学 | |||||||
| 学位授与年度 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 令和3年度 | |||||||
| 出版タイプ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
| アクセス権 | ||||||||
| アクセス権 | open access | |||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||
| ID登録 | ||||||||
| ID登録 | 10.18997/00009018 | |||||||
| ID登録タイプ | JaLC | |||||||
| 著者別名 | ||||||||
| 識別子Scheme | WEKO | |||||||
| 識別子 | 33249 | |||||||
| 姓名 | Bandi Orkhid, Tuvshinbayar | |||||||
