Powerline Ampacity System: Theory, Modeling and ApplicationsCivilization's demands for electricity continue to grow, yet environmental, regulatory, and economic constraints often preclude the construction of new power plants and transmission lines. The challenge now faced by engineers, equipment manufacturers, and regulatory agencies is to find ways to maximize the capacity of existing power lines. Powerline Ampacity System is the first step in meeting that challenge. Along with developing a complete theory of transmission line ampacity, the author uses object-oriented modeling and expert rules to build a power line ampacity system. He describes new transmission line conductor technologies and power electronics FACTS devices that can take full advantage of a dynamic line rating system. He offers examples that clearly show the economic benefit of operating an interconnected transmission network that has a diverse mix of electricity generation sources. He also discusses - with examples - generator stability enhancement by dynamic line rating. |
Contents
Introduction | |
Line Rating | |
Theory of Transmission Line Ampacity | |
Experimental Verification of Transmission Line | |
Elevated Temperature Effects | |
Program | |
Weather Modeling for Forecasting Transmission Line | |
New Methods of Increasing Transmission Capacity | |
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Common terms and phrases
AAC Bluebell AC resistance ACSR ACSR Cardinal conductor ACSR conductor algorithm ambient temperature Ampacity calculated Anjan application chapter Cigré circuit coefficient conductor sag conductor temperature cost developed differential equation distribution of conductor dynamic ampacity dynamic line rating electric field electric power Example expert system FACTS devices flux forecast Fourier series fuzzy sets given heat hourly values HVDC IEEE increase input Kalman filter layer line ampacity system line rating system LINEAMPS program load loss of strength magnetic field maximum method National Weather Service neural network obtained overhead lines permanent elongation PG&E power system presented probability distribution reactive power real-time sag and tension shown in Figure solar radiation solution STATCOM static line rating steady-state Table tensile strength thermal rating thyristor transient transmission capacity transmission line ampacity transmission line conductor transmission line sag values of ambient weather data weather models weather station object wind direction wind speed wind tunnel