Title :
Second harmonics of audible noise from AC transmission lines-Random walk model on space distribution
Author_Institution :
Central Res. Inst. of Electr. Power Ind., Tokyo, Japan
fDate :
1/1/1991 12:00:00 AM
Abstract :
The statistical distribution function of `hum noise´, which is a 100 or 120 Hz pure tone which generates a complex standing wave near AC transmission lines, is derived from random walk theory. The results are verified by comparing them with data measured on the Akagi test line. In order to evaluate the hum noise level near transmission lines, a concept of a temporal and spatial average level is derived, and a method yielding it is shown
Keywords :
acoustic noise; harmonics; power transmission lines; statistical analysis; 100 Hz; 120 Hz; AC transmission lines; Random walk model; audible noise; harmonics; hum noise; pure tone; space distribution; standing wave; statistical distribution function; temporal and spatial average level; Acoustic noise; Conductors; Frequency; Noise figure; Noise generators; Noise level; Power generation; Power system harmonics; Power transmission lines; Transmission line theory;
Journal_Title :
Power Delivery, IEEE Transactions on
