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Analysis and Research about Harmonic Disturbance Issue in the Application of Frequency in Baogang

Author: WangJinZuo
Tutor: ZhuLing；YuMengHua
School: North China Electric Power University (Hebei)
Course: Electrical Engineering
Keywords: converter
CLC: TM921.5
Type: Master's thesis
Year: 2009
Downloads: 110
Quote: 1
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Abstract


Combining with the weld current converter use harmonic interference the existing problems, fan, water pump and frequency control of motor speed power quality and improve the power factor of the optimization research. Fan variable frequency speed regulation system of power distribution basically to device capacitor to improve power factor and save energy. This paper first to reactive power system voltage to the concept of influence, analyzed the condenser provided by the size of reactive power and voltage is proportional to the rise and fall of the relationship. Secondly, this paper discusses the harm of harmonic wave to electric power capacitor influence. In order to avoid the connection of the capacitor bank system produce parallel or series resonance, cause condenser fault or burned to the ground, in view of the different harmonic source, using specific frequency single tuned type reactance capacitor group or filter, in power quality and power factor improvements on all can give attention to two or morethings optimization combination.

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CLC: > Industrial Technology > Electrotechnical > Electrification,electrical energy application > Electric drive ( electric drive ) > Control system
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