{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T04:23:38Z","timestamp":1760243018979,"version":"build-2065373602"},"reference-count":22,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2015,8,21]],"date-time":"2015-08-21T00:00:00Z","timestamp":1440115200000},"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>Voltage sensors are an important part of the electric system. In service, traditional voltage sensors need to directly contact a high-voltage charged body. Sensors involve a large volume, complex insulation structures, and high design costs. Typically an iron core structure is adopted. As a result, ferromagnetic resonance can occur easily during practical application. Moreover, owing to the multilevel capacitor divider, the sensor cannot reflect the changes of measured voltage in time. Based on the electric field coupling principle, this paper designs a new voltage sensor; the unipolar structure design solves many problems of traditional voltage sensors like the great insulation design difficulty and high costs caused by grounding electrodes. A differential signal input structure is adopted for the detection circuit, which effectively restrains the influence of the common-mode interference signal. Through sensor modeling, simulation and calculations, the structural design of the sensor electrode was optimized, miniaturization of the sensor was realized, the voltage division ratio of the sensor was enhanced, and the phase difference of sensor measurement was weakened. The voltage sensor is applied to a single-phase voltage class line of 10 kV for testing. According to the test results, the designed sensor is able to meet the requirements of accurate and real-time measurement for voltage of the charged conductor as well as to provide a new method for electricity larceny prevention and on-line monitoring of the power grid in an electric system. Therefore, it can satisfy the development demands of the smart power grid.<\/jats:p>","DOI":"10.3390\/s150820678","type":"journal-article","created":{"date-parts":[[2015,8,21]],"date-time":"2015-08-21T10:38:09Z","timestamp":1440153489000},"page":"20678-20697","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Research and Experiments on a Unipolar Capacitive  Voltage Sensor"],"prefix":"10.3390","volume":"15","author":[{"given":"Qiang","family":"Zhou","sequence":"first","affiliation":[{"name":"State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wei","family":"He","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Songnong","family":"Li","sequence":"additional","affiliation":[{"name":"State Grid Chongqing Electric Power Co. Electric Power Research Institute, Chongqing 400015, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xingzhe","family":"Hou","sequence":"additional","affiliation":[{"name":"State Grid Chongqing Electric Power Co. Electric Power Research Institute, Chongqing 400015, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2015,8,21]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"6593","DOI":"10.3390\/s110706593","article-title":"An optical AC voltage sensor based on the transverse pockels effect","volume":"11","author":"Pan","year":"2011","journal-title":"Sensors"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"301","DOI":"10.1109\/61.180350","article-title":"Characteristics of lightning surges measured at metal oxide distribution arresters","volume":"8","author":"Barker","year":"1993","journal-title":"IEEE Trans. Power Deliv."},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Knauss, J.-P.H., Warren, C., and Kearns, D. (2012, January 7\u201310). An Innovative Approach to Smart Automation Testing at National Grid. Proceedings of the Transmission and Distribution Conference and Exposition, Orlando, FL, USA.","DOI":"10.1109\/TDC.2012.6281507"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"464","DOI":"10.4028\/www.scientific.net\/AMM.303-306.464","article-title":"On-Line Monitoring System for Transformer Partial Discharge","volume":"303","author":"Liu","year":"2013","journal-title":"Appl. Mech. Mater."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"468","DOI":"10.1109\/TSTE.2011.2161624","article-title":"Combined Operations of Renewable Energy Systems and Responsive Demand in a Smart Grid","volume":"2","author":"Cecati","year":"2011","journal-title":"IEEE Trans. Sust. Energy"},{"key":"ref_6","first-page":"106","article-title":"Combined sensors for current and voltage are ready for application in GIS","volume":"12","author":"Kaczkowski","year":"1998","journal-title":"CIGRE"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"18","DOI":"10.1109\/MPE.2009.934876","article-title":"The path of the smart grid","volume":"8","author":"Farhangi","year":"2010","journal-title":"IEEE Power Energy Mag."},{"key":"ref_8","unstructured":"Hou, D., and Roberts, J. (1996, January 26\u201329). Capacitive voltage transformer: transient overreach concerns and solutions for distance relaying. Proceedings of the IEEE Canadian Conference on Electrical and Computer Engineering, Calgary, AB, Canada."},{"key":"ref_9","unstructured":"Metwally, I.A. (1995, January 22\u201325). Coaxial D-dot probe: design and testing. Proceedings of the IEEE Annual Report Conference on Electrical Insulation and Dielectric Phenomena, Virginia Beach, VA, USA."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"22","DOI":"10.1109\/TAP.1978.1141798","article-title":"Sensors for electromagnetic pulse measurements both inside and away from nuclear source regions","volume":"26","author":"Baum","year":"1978","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Browning, C.A., Vinci, S.J., Zhu, J., Hull, D.M., and Noras, M.A. (2013, January 3\u20136). An evaluation of electric-field sensors for projectile detection. Proceedings of the IEEE Conference on Sensors, Baltimore, MD, USA.","DOI":"10.1109\/ICSENS.2013.6688441"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"2211","DOI":"10.1109\/TIM.2009.2030928","article-title":"D-dot probe before fast-front voltage measurement","volume":"59","author":"Metwally","year":"2010","journal-title":"IEEE Trans. Instrum. Meas."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"778","DOI":"10.1109\/61.400853","article-title":"An improved non-inductive impulse voltage measurement technique for ZnO surge arresters","volume":"10","author":"Haddad","year":"1995","journal-title":"IEEE Trans. Power Deliv."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"1274","DOI":"10.1016\/j.epsr.2011.01.015","article-title":"Comparative measurement of surge arrester residual voltages by D-dot probes and dividers","volume":"81","author":"Metwally","year":"2011","journal-title":"Electr. Power Syst. Res."},{"key":"ref_15","unstructured":"Kubo, T., Furukawa, T., Fukumoto, H., and Ohchi, M. (2009, January 18\u201321). Numerical estimation of characteristics of voltage-current sensor of resin molded type for 22 kV power distribution systems. Proceedings of the ICCAS-SICE, Fukuoka, Japan."},{"key":"ref_16","unstructured":"Kubo, T., Furukawa, T., Itoh, H., Hisao, W., and Wakuya, H. (2011, January 13\u201318). Numerical electric field analysis of power status sensor observing power distribution system taking into account measurement circuit and apparatus. Proceedings of the SICE Annual Conference, Tokyo, Japan."},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Focia, R.J., and Frost, C.A. (2005, January 13\u201317). A compact, low jitter, 1 kHz pulse repetition rate gas-switched pulse generator system. Proceedings of the IEEE Conference on Pulsed Power, Monterey, CA, USA.","DOI":"10.1109\/PPC.2005.300634"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"1584","DOI":"10.1109\/TPWRD.2013.2251753","article-title":"A low-cost power quality meter with series arc-fault detection capability for smart grid","volume":"28","author":"Koziy","year":"2013","journal-title":"IEEE Trans. Power Deliv."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"2134","DOI":"10.1109\/TPWRD.2013.2264948","article-title":"Analysis of Nonstationary. Power-Quality Waveforms Using Iterative Hilbert Huang Transform and SAX Algorithm","volume":"28","author":"Afroni","year":"2013","journal-title":"IEEE Trans. Power Deliv."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"257","DOI":"10.1109\/TDEI.2014.004285","article-title":"Simulation of the electric field strength in the vicinity of metallization edges on dielectric substrates","volume":"22","author":"Bayer","year":"2015","journal-title":"IEEE Trans. Dielectr. Electr. Insul."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"157","DOI":"10.1109\/TASC.2014.2387117","article-title":"Design of Post Metal Shields Through Electric Field Distribution Analysis for a 154-kV SFCL","volume":"25","author":"Yoo","year":"2015","journal-title":"IEEE Trans. Appl. Supercond."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"331","DOI":"10.1109\/TMAG.2014.2330953","article-title":"3-D Coupled Electromagnetic-Fluid-Thermal Analysis of Oil-Immersed Triangular Wound Core Transformer","volume":"50","author":"Liao","year":"2014","journal-title":"IEEE Trans. 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