The Measurement Method for Corona Discharge Current Under High-Voltage Environment

Wang, P.; Zhang, G.

doi:10.1109/tim.2008.922069

Cited by 20 publications

(10 citation statements)

References 9 publications

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“…In 1938, Trichel et al [6] first tested the current pulse in a negative corona discharge and pointed out that the periodic generation and disappearance of space charge is the main reason for the regular current pulse. In 2007, the acquisition method of the high-frequency current pulse was improved [7][8] .…”

Section: Introductionmentioning

confidence: 99%

DC negative corona discharge characteristics of the needle-plate electrode under different air pressures

Lv,

Zhou,

Liu

et al. 2023

J. Phys.: Conf. Ser.

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Because of the low normal atmospheric pressure and frequent, more severe corona discharges in high-altitude regions. The electromagnetic environment problems caused by the corona discharge restrict the line design in high-altitude areas. The variance in the law of negative DC corona characteristics under different air pressure conditions is derived using an artificial climate tank with adjustable air pressure. The characteristics of the negative DC needle-plate corona discharge were measured experimentally. The negative DC corona discharge pulses at 89.4 kPa–56.04 kPa were obtained, and the characteristics of the current pulses were statistically examined. The study of the mechanism of the DC corona discharge can benefit from the research findings as essential reference data.

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Section: Introductionmentioning

confidence: 99%

DC negative corona discharge characteristics of the needle-plate electrode under different air pressures

Lv,

Zhou,

Liu

et al. 2023

J. Phys.: Conf. Ser.

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“…Another issue connected to energy losses during operation of power transmission lines, especially under extreme conditions at high humidity and temperature, is generation of corona discharges in the vicinity of power line [3][4][5][6]. There exist various methods for detection and localization of corona discharges [7][8][9][10]. In research studies, the results of which are presented in this paper, corona discharges occurring on a laboratory model of power transmission lines made of various materials were registered using optical spectrophotometry.…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Optical Signals Emitted by Corona on a Laboratory Model of Transmission Lines Made of Various Materials

Krzewiński

Frącz

Urbaniec

et al. 2017

Journal of Spectroscopy

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The paper presents results of comparative analyses of optical signals generated by corona discharges occurring in the vicinity and on the surface of power transmission lines made of five different materials under laboratory conditions. Three aluminium-based materials were chosen: pure aluminium, aluminium with added magnesium, and aluminium with added silicon, and for comparison purposes also, steel-based lines were considered: copper-coated steel and steel with added chromium and nickel. A three-phase triangular arrangement system operating under maximal voltage equal to 110 kV was applied for experimental tests. The optical radiation was registered using a spectrophotometer. During research works, also the influence of corona generation voltage and distance between power lines was investigated. Based on the achieved results, it was stated that the highest corona intensity was found for aluminium-based lines, for both pure aluminium and aluminium with added magnesium and silicon. The lowest corona intensity was observed for chromium- and nickel-alloyed (stainless) steel.

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“…But, the measuring bandwidth of the system is still limited to 7.5 kHz. In Wang and Zhang, 4 a commercial low-inductance resistance is used to measure the corona current. After improving the sampling rate of the data acquisition system, the signal acquisition width can reach up to 4.5 MHz.…”

Section: Introductionmentioning

confidence: 99%

Development of a sensor for corona current measurement under high-voltage direct-current transmission lines

Xin

Yuan

2016

International Journal of Distributed Sensor Networks

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A sensor-based distributed measurement system is designed for collecting and monitoring the corona current under the extremely high-voltage direct-current transmission lines. It is highly significant for researching the corona characteristics of extremely high-voltage direct-current transmission lines to reduce the corona effect, operating loss, and environmental impact. A new shared memory strategy has been studied based on field-programmable gate array and ARM. Based on field-programmable gate array technology, the fiber-optic transmission scheme for wide-frequency corona current highspeed signal has been set up to ensure the safety and the reliability of corona current measurement system. The proposed system has been used in China's state grid high-voltage direct-current test base and the in situ power transmission projects. Based on the experimental results, the proposed measurement system demonstrates that it can adapt to the complex electromagnetic environment under the transmission lines and can accomplish the accurate, flexible, and stable demands of the electric-field measurement.

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The Measurement Method for Corona Discharge Current Under High-Voltage Environment

Cited by 20 publications

References 9 publications

DC negative corona discharge characteristics of the needle-plate electrode under different air pressures

DC negative corona discharge characteristics of the needle-plate electrode under different air pressures

Comparative Analysis of Optical Signals Emitted by Corona on a Laboratory Model of Transmission Lines Made of Various Materials

Development of a sensor for corona current measurement under high-voltage direct-current transmission lines

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