A Low Cost Real-Time Transient Recorder for High Voltage Systems
SENSORS(2023)
Abstract
Large-scale incorporation of new energy generation units based on renewable sources, such as wind and photovoltaic power, drastically alters the structure of the power system. Because of the intermittent nature of these sources, switching in grids (connection and disconnection) occurs much more frequently than with conventional sources. As a result, the power system will inevitablyexperience a large number of transients, which raises questions about the stability of the system andthe quality of the electrical energy. Therefore, measuring various types of transients in power systemis crucial for stability, power quality, fault analysis, protection design, and insulation design. Transientrecorders that are currently used are generally expensive and only suitable for particular locationsin power systems. The number of installed transient recorders is insufficient for a comprehensiveanalysis of problems that may occur. Hence, it is important to have inexpensive and efficient transientrecorders that can be installed at multiple points in the power system on various types of objects.It is also essential to have a transient record database with open access, which can be used byresearchers to develop new analysis techniques based on artificial intelligence. This paper proposesan inexpensive measurement and acquisition system designed to record transient phenomena ondifferent objects within the power system. The system is designed to use autonomous power, astandardized data acquisition module, a low-budget system for transmitting recorded transientevents to the server via mobile network, and a sensor system adapted to the object where transientsare recorded. The proposed system is designed to be used for all types of objects in the powersystem where transients may occur, such as power lines, transmission towers, surge arresters, andtransformers. All components of the system are described, and the system is tested under laboratoryconditions. The modular nature of the system allows customization to the specifics of the location inpower system by choosing appropriate components. The calibration method of the custom designedRogowski coil is described. The cost analysis of the proposed system and power consumption analysisare performed. The results show that the system's performance meets application requirements at alow cost.
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Key words
cloud storage,Industrial Internet of Things (IIoT),lightning strikes,remote monitoring system,Rogowski coil,transients in power system
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