DocumentCode :
273748
Title :
The feature of harmonic in time domain and the harmonic impedance coefficient ZFn of network
Author :
He Shou Zeng
Author_Institution :
Shandong Inst. of Coal Sci. Res.
fYear :
1989
fDate :
23-25 May 1989
Firstpage :
337
Lastpage :
342
Abstract :
When the harmonic current of nonlinear electric equipment is injected into a network, a disturbance is formed. According to the IEC/TC-77(EMC) and other standards for power systems and plants, the disturbance´s degree can be expressed by the network harmonic voltage, resulting from the harmonic current injected into the network from electric equipment. It can also be expressed by Un/ U1, the ratio of the Nth harmonic voltage (RMS). This is also called the sine wave distortion factor of the N th harmonic voltage, designated DFn%. A different coefficient ZFn is proposed that is the ratio of the harmonic voltage of the network bus (RMS) to the harmonic current injected into the network system. An example of its application is presented. It is claimed that compared to the general voltage distortion factor DFn%, ZFn can show electromagnetic compatibility more clearly
Keywords :
distribution networks; electromagnetic compatibility; electromagnetic interference; EMC; electromagnetic compatibility; harmonic current; harmonic impedance coefficient; network bus; network harmonic voltage; nonlinear electric equipment; power systems; voltage distortion factor; Electromagnetic compatibility; Electromagnetic measurements; Harmonic analysis; Harmonic distortion; Impedance; Intelligent networks; Production facilities; Time domain analysis; Time measurement; 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.1989.37203
Filename :
37203
Link To Document :
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