| Harmonic (particular harmonic oscillation) is very harmful to electric net. Therefore, the power department and users are concerned aboui harmonic and reactive compensation .The power department usually manage compute and measure the electric net' s harmonic condition and connected or new-connected harmonic load. And need to measure the harmonic vol tage\current in some electric net' point. Then, by manual making an in-depth analysis and statistics on measured-data, it can reduce harmonic harm on public not to take some effective measures. But, the measured-data is a very great quantity and every data contain all data of 1-25 harmonic, measured time can have hours to days. The count by hand is very heavy and over-elaborate, sometimes the statistics results is error. It won' t reach the analysis purpose and don' t obtain the curve of harmonic oscillation characteristic in a row frequency range.This paper makes a science analysis to power system' s harmonics and harmonic oscillation in partial power net, develop the analysis software of harmonic oscillation characteristic. Make use of this software can obtain the harmonic oscillation characteristic curve in a row frequency range, can discover accurately oscillation, can make an in-depth analysis and statistics and renew the realistic curve of voltage or current on the basis of the measured - data. It can make the analysis report on the basis of theABSTRACTnation standard. Based practical analog analysis in some partial power net, obtain the harmonic oscillation characteristic curve, and verify the software is right.It can reduce the harmonic or harmonic oscillation in public power net to take some effective measures by making use of this software, and finally reduce the power system accidents and cease time, improve power quality. It is wide application in the future. |
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