{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T04:13:24Z","timestamp":1760242404567,"version":"build-2065373602"},"reference-count":38,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2017,8,18]],"date-time":"2017-08-18T00:00:00Z","timestamp":1503014400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Effective Partial Discharge (PD) localization can detect the insulation problems of the power equipment in a substation and improve the reliability of power systems. Typical Ultra-High Frequency (UHF) PD localization methods are mainly based on time difference information, which need a high sampling rate system. This paper proposes a novel PD localization method based on a received signal strength indicator (RSSI) fingerprint to quickly locate the power equipment with potential insulation defects. The proposed method consists of two stages. In the offline stage, the RSSI fingerprint data of the detection area is measured by a wireless UHF sensor array and processed by a clustering algorithm to reduce the PD interference and abnormal RSSI values. In the online stage, when PD happens, the RSSI fingerprint of PD is measured via the input of pattern recognition for PD localization. To achieve an accurate localization, the pattern recognition process is divided into two steps: a preliminary localization is implemented by cluster recognition to reduce the localization region, and the compressed sensing algorithm is used for accurate PD localization. A field test in a substation indicates that the mean localization error of the proposed method is 1.25 m, and 89.6% localization errors are less than 3 m.<\/jats:p>","DOI":"10.3390\/s17081909","type":"journal-article","created":{"date-parts":[[2017,8,21]],"date-time":"2017-08-21T04:12:17Z","timestamp":1503288737000},"page":"1909","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["A Novel Partial Discharge Localization Method in Substation Based on a Wireless UHF Sensor Array"],"prefix":"10.3390","volume":"17","author":[{"given":"Zhen","family":"Li","sequence":"first","affiliation":[{"name":"Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9662-9668","authenticated-orcid":false,"given":"Lingen","family":"Luo","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5888-1694","authenticated-orcid":false,"given":"Nan","family":"Zhou","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China"}]},{"given":"Gehao","family":"Sheng","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China"}]},{"given":"Xiuchen","family":"Jiang","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China"}]}],"member":"1968","published-online":{"date-parts":[[2017,8,18]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"20","DOI":"10.1109\/TPWRD.2008.2005464","article-title":"RF-Based Partial Discharge Early Warning System for Air-Insulated Substations","volume":"24","author":"Portugues","year":"2009","journal-title":"IEEE Trans. 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