Analysis of the Selection of Capacitor in Filter Circuit in Chemical Industry
In order to solve the great harm of harmonics and effectively control harmonics in engineering practice,the most effective way is to install filter in the system.Firstly,the classification of filters is introduced.Secondly,in the presence of harmonics,the filter will produce parallel resonance and series resonance phenomenon.Especially when the harmonic is in a special frequency,the amplification of harmonic current by the filter is discussed,and the calculation method of overcurrent multiple and overvoltage multiple is given considering the influence of series reactor on overvoltage.In engineering design,rational use of filter capacitors has positive significance for circuit optimization.
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