Analysis on Ampacity of Overhead Transmission Lines Being Operated
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초록
Dynamic thermal rating (DTR) system is an effective method to improve the capacity of existing overheadline. According to the methodology based on CIGRE (International Council on Large Electric systems)standard, ampacity values under steady-state heating balance can be calculated from ambient environmentalconditions. In this study, simulation analysis of relations between parameters and ampacity is described asfunctional dependence, which can provide an effective basis for the design and research of overheadtransmission lines. The simulation of ampacity variation in different rating scales is described in this paper,which are determined from real-time meteorological data and conductor state parameters. To test theperformance of DTR in different rating scales, capacity improvement and risk level are presented. And theexperimental results show that the capacity of transmission line by using DTR has significant improvement,with low probability of risk. The information of this study has an important reference value to the operationmanagement of power grid.
Abstract
Dynamic thermal rating (DTR) system is an effective method to improve the capacity of existing overheadline. According to the methodology based on CIGRE (International Council on Large Electric systems)standard, ampacity values under steady-state heating balance can be calculated from ambient environmentalconditions. In this study, simulation analysis of relations between parameters and ampacity is described asfunctional dependence, which can provide an effective basis for the design and research of overheadtransmission lines. The simulation of ampacity variation in different rating scales is described in this paper,which are determined from real-time meteorological data and conductor state parameters. To test theperformance of DTR in different rating scales, capacity improvement and risk level are presented. And theexperimental results show that the capacity of transmission line by using DTR has significant improvement,with low probability of risk. The information of this study has an important reference value to the operationmanagement of power grid.
참고문헌 (16)
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