A Study of High Power Factor and Low Harmonic Distortion for Distribution Transformer

• Main Authors: Jia-Sin Huang, 黃家信
• Other Authors: 蘇偉府
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/23104503389902921602

碩士 === 崑山科技大學 === 電機工程研究所 === 100 === The rapid development of power electronics technology makes its components and equipment have been widely used in power system equipment. This result is in deterioration of power quality, large number of power system harmonic pollution problems caused by electrical equipment accidents frequently. In order to improve the functions of the distribution transformer, this thesis is proposed combination of passive power filter and power factor correction control unit for distribution transformer. The automatic power factor regulator control the passive power filter of operation, able to upgrade the existing transformer function. This thesis is proposed operation strategy of high power factor and low harmonic distortion for distribution transformer. That avoided when used alone passive power filter, the harmonic characteristics cannot be controlled in accordance with the power system load changes, may be caused by resonance in series or parallel, and the use of single-tuned passive power filter and high-pass power filter characteristics as sub-harmonic improvement to improve the existing power filter cannot be controlled according to load changes. To validate the feasibility of a study of high power factor and low harmonic distortion for distribution transformer to create hardware measured and the measured results show that the proposed architecture can really achieve the desired effect.