EMTP Modeling of a Triggered-Lightning Strike to the Phase Conductor of an Overhead Distribution Line
نویسندگان
چکیده
A triggered-lightning experiment and EMTP modeling of that experiment are used to study the responses of a twoconductor overhead power line to a direct lightning strike. The experiment was conducted at the International Center for Lightning Research and Testing (ICLRT) at Camp Blanding, FL. The lightning was artificially initiated (triggered) from a natural thundercloud using the rocket-and-wire technique, and its current was directed to the phase conductor. EMTP modeling of the line behavior yields results that are generally consistent with the measurements.
منابع مشابه
Transient Analysis of the Single-Conductor Overhead Lines Connected to Grid-Grounded Arrester under Direct Lightning by Means of GA
In this paper, genetic algorithm-based approach for transient analysis of single transmission line connected to arrester is proposed. In this approach, the lightning channel striking the overhead line is first represented by a current source and this source is truncated by a finite set of frequency harmonies in time domain. Norton equivalent circuit viewed across arrester is then computed by me...
متن کاملApplication of Intelligent Water Drops in Transient Analysis of Single Conductor Overhead Lines Terminated to Grid-Grounded Arrester under Direct Lightning Strikes
In this paper, Intelligent water drop algorithm (IWD) is used to analyze single overhead line connected to grid-grounded arrester. In this approach, at first Norton’s equivalent circuit of the overhead line over lossy soil is computed by method of moments (MoM) and then for the problem under consideration, a nonlinear equivalent circuit in the frequency domain is proposed. Finally applying inte...
متن کاملHigh Frequency Analysis of Single Overhead Line Terminated to Grounded Arrester
In this paper, intelligent models based on fuzzy inference are proposed to analyze single overhead line terminated to arrester. This paper consists of two parts. The first one is modeling overhead line and the second one is related to modeling grounding system. In each part, the behavior of the problem is first represented as simple and unchanged membership functions. After then, effects of par...
متن کاملLightning-induced Overvoltages in Overhead Power Distribution Lines: Importance of the Line Grounding Electrodes Modeling
Models for the calculation of lightning-induced voltages on distribution networks, should be able to take into account the presence of shielding wires and/or neutral conductors and of their relevant groundings. The paper deals with the estimation of the influence of these groundings with particular reference to the grounding electrode model on the calculated values of the lightninginduced volta...
متن کاملCalculation of Lightning-induced Voltages in MODELS Including Lossy Ground Effects
The paper outlines how lightning-induced voltages (LIV) in multi-conductor overhead lines can be calculated in MODELS in the ATP-EMTP. Lossy ground effects on the radial electrical field is taken into account by the CoorayRubinstein approximation, but the overhead line itself is assumed to be lossless. This is a reasonable assumption for line lengths up to 1-3 km, depending on the ground resist...
متن کامل