DocumentCode :
2419745
Title :
A classification of the power-line voltage disturbances for an exhaustive description and measurement
Author :
Millanta, L.M. ; Forti, M.M.
Author_Institution :
Dept. of Electron. Eng., Florence Univ., Italy
fYear :
1989
fDate :
23-25 May 1989
Firstpage :
332
Lastpage :
336
Abstract :
A classification and related terminology is suggested for the description of voltage disturbances on AC power lines. The current usage in the technical literature and in industrial and instrumentation applications has been incorporated. The disturbances are classed into two categories: waveshape disturbances and superimposed disturbances. The waveshape disturbances are further differentiated according to the type of voltage variations (over- or under-voltages) which are in turn subdivided according to a limit in time duration. The superimposed disturbances are subdivided into persistent and transient types. The former are present as a continuous voltage variation, for an extended period of time, and can be further subdivided into coherent having a definite frequency spectrum, or random, having a continuous frequency distribution. A persistent random disturbance can be described as stationary or nonstationary, according to whether its spectrum has a statistically constant or nonconstant power density. Experimental examples of transient disturbances are presented and discussed in the light of the proposed terminology and of the physical phenomena (characteristics, origin, propagation, coupling, natural oscillations) involved
Keywords :
electromagnetic interference; overvoltage; power systems; transients; AC power lines; EMI; characteristics; classification; coherent; coupling; natural oscillations; nonstationary; origin; overvoltage; persistent; power-line voltage disturbances; propagation; random; stationary; superimposed disturbances; transient; under-voltages; waveshape disturbances; Frequency; History; Instruments; Optical coupling; Optical propagation; Power engineering and energy; Shape; Terminology; Testing; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electromagnetic Compatibility, 1989., IEEE 1989 National Symposium on
Conference_Location :
Denver, CO
Type :
conf
DOI :
10.1109/NSEMC.1989.37202
Filename :
37202
Link To Document :
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