Harmonics Filter Parameter Design of the Rectification Set

The parameter calculation of harmonic filter which is added in the Autotransformer's third coil is investigated.The harmonic filter in the large power controlled rectification system is constituted by sat-urable reacter and diode bridge rectifier.The harmonic current and inductive current of rectification set,and the method to design the filter's parameters are analyzed.According to the general filter's design princi-ple,the parameters and the effec of harmonic filter in the rectification set of an electrolysis aluminum company's first and second period project are analyzed and compared.The results indicated that the filterabil-ity depend upon the quality factor Q of harmonic filter largely.For large power controlled rectification system which is constituted by saturable reacter and diode bridge rectifier.Q should be about 2,smailler than 2 is bet-ter,and the filter resistance should be smaller than 10Ω.