Transmission Line on-line Monitoring System Based on Ethernet and McWiLL

Liu, Yujun; Yin, Hongyan; Wu, Tong

doi:10.2991/lemcs-15.2015.133

Cited by 4 publications

(5 citation statements)

References 1 publication

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“…Similar failures may also be encountered when the electromagnetic radiation of streamer corona flash originates near the monitoring, diagnostic, and control systems that affect its elements (e.g., sensors). Failures may also occur if analog-digital converters with working frequencies from several hundred kilohertz to several gigahertz are used for subsequent digital processing of the measuring information [5,6,8,11]. The electromagnetic radiation of the streamer corona flash ranging from hundreds of megahertz to gigahertz could impact nearby receiving/transmitting devices, and result in disruption, distortion, or a loss in informational transmission [8,11,12].…”

Section: Analysis Of Results and Discussionmentioning

confidence: 99%

“…Depending on their functional purpose, monitoring systems can use various types of sensors and transmitters (transceivers) of a rod or elongated type with sizes ranging from several centimeters to tens of centimeters. Sensors can have an almost spherical or cylindrical shape, or have a complex shape with protruding rod elements [5,6,8]. Since the structural elements of the transmission tower, as well as the phase and grounded wires, are also close in shape to a rod or cylindrical form, the following two experimental schemes with rod or cylindrical electrodes were chosen for the physical modeling used during the research.…”

Section: Experimental Schemesmentioning

confidence: 99%

“…Software, computing complexes, and artificial intelligence algorithms are being increasingly introduced into power management systems, and include various remote monitoring systems for transmission lines. These systems use collected data to form control signals that make operational decisions [1][2][3][4][5][6][7]. At the same time, functional problems continue to appear during the use of digital technology and computing systems in the online monitoring of the air transmission lines (e.g., sensors of various kinds, analog-digital converters for the processing of recorded signals, and antenna and receiver-transmitting devices of different shapes and sizes [6][7][8][9][10]) under the influence of thunderclouds and lightning.…”

Section: Introductionmentioning

confidence: 99%

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Physical Simulation of the Spectrum of Possible Electromagnetic Effects of Upward Streamer Discharges on Model Elements of Transmission Line Monitoring Systems Using Artificial Thunderstorm Cell

et al. 2021

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The results of a physical simulation using negatively charged artificial thunderstorm cells to test the spectrum of possible electromagnetic effects of upward streamer discharges on the model elements of transmission line monitoring systems (sensor or antennas) are presented. Rod and elongated model elements with different electric field amplification coefficients are investigated. A generalization is made about the parameters of upward streamer current impulse and its electromagnetic effect on both kinds of model elements. A wavelet analysis of the upward streamer corona current impulse and of the signal simultaneously induced in the neighboring model element is conducted. A generalization of the spectral characteristics of the upward streamer current and of the signals induced by the electromagnetic radiation of the nearby impulse streamer corona on model elements is made. The reasons for super-high and ultra-high frequency ranges in the wavelet spectrum of the induced electromagnetic effect are discussed. The characteristic spectral ranges of the possible electromagnetic effect of upward streamer flash on the elements of transmission line monitoring systems are considered.

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Section: Analysis Of Results and Discussionmentioning

confidence: 99%

Section: Experimental Schemesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Physical Simulation of the Spectrum of Possible Electromagnetic Effects of Upward Streamer Discharges on Model Elements of Transmission Line Monitoring Systems Using Artificial Thunderstorm Cell

et al. 2021

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“…In the cigarette industry, the traditional manual production mode is gradually transitioning to intelligence and unmanned [2] , but this transformation poses higher requirements for the safety and production management level of production lines [3] . However, currently the new tobacco production system is based on MES data collection and processing system, which cannot perform real-time analysis and early warning of process indicators, resulting in lagging operation intervention and equipment maintenance, which can easily lead to problems such as uneven water addition and directly affect product quality.…”

Section: Introductionmentioning

confidence: 99%

Design and application of quality early warning system based on PLC and iFIX learning

Si,

Liu,

Sun

2024

Fourth International Conference on Sensors and Information Technology (ICSI 2024)

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In the automated production process of cigarettes, it is inevitable to encounter some malfunctions on a certain production line, and each malfunction will affect the quality and output of cigarette products. In order to ensure the quality of cigarette products, this article designs a warning function based on PLC and iFIX operating software on the cigarette production line. By analyzing historical and real-time data, a warning model is established using the process capability index CPK and setting warning thresholds. Intelligent warnings are given for unqualified data or other problems, and presented in the form of interface prompts. Transforming fault handling into pre warning, reducing losses caused by faults, ensuring stable quality and flow of each process (section) during the tobacco production process, uniform moisture and temperature of tobacco products, and meeting process requirements. The product is always in a highquality state. The warning system studied in this article will be able to effectively solve quality problems that arise during tobacco production.

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“…Remote monitoring systems are increasingly being introduced into the management of transmission lines and become an important element of digital power industry [1][2][3][4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Artificial Negative Polarity Thunderstorm Cell Modeling of Nearby Incomplete Upward Discharges’ Influence on Elements of Monitoring Systems for Air Transmission Lines

et al. 2021

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The article represents results of a physical simulation of incomplete upward leader discharges induced on air transmission lines’ elements, using charged artificial thunderstorm cells of negative polarity. The influence of such discharges on closely located model sensors (both of rod and elongated types) of digital monitoring systems, as well as on the models of receiver-transmission systems of local data collection (antennas), was determined. Effect of heterogeneity of electromagnetic field caused by incomplete upward discharges on frequency specter of signals generated on sensors and antennas was estimated. Wavelet analysis was carried out to determine the basic frequency diapasons of such signals. Based on experimental data obtained, suppositions about the extent of influence of nearby incomplete leader discharges on the functioning of currently used systems of transmission lines’ monitoring were made.

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Transmission Line on-line Monitoring System Based on Ethernet and McWiLL

Cited by 4 publications

References 1 publication

Physical Simulation of the Spectrum of Possible Electromagnetic Effects of Upward Streamer Discharges on Model Elements of Transmission Line Monitoring Systems Using Artificial Thunderstorm Cell

Physical Simulation of the Spectrum of Possible Electromagnetic Effects of Upward Streamer Discharges on Model Elements of Transmission Line Monitoring Systems Using Artificial Thunderstorm Cell

Design and application of quality early warning system based on PLC and iFIX learning

Artificial Negative Polarity Thunderstorm Cell Modeling of Nearby Incomplete Upward Discharges’ Influence on Elements of Monitoring Systems for Air Transmission Lines

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