Harmonic Analysis Of Residential Distribution System

In recent years，with the development of green power，residential power quality are more and moreattention by people. Resident in power load is increased, while the electrical intelligence is popular. Thus, itis necessary to study on residents’ distribution system on harmonic.This study is supported by association international copper。From Beijing, Shanghai, Shenzhen andHarbin, resident harmonic has been measured. The measure points are household distribution box and unitpower supply. After the collation and analysis of data, it obtained the relationship between indoorsactive power and THDi, the same with unit active power and THDi. On this basis, it deduced harmoniccurrent estimation methods, and adopted in practice.In order to improve the accuracy and effectiveness of harmonic analysis，In this paper, the Matlabsoftware help to use BP neural network to establish a model with residential active power, power factor andtotal harmonic current distortion. This model can predict the THDi at different load. It verifies the validityof the model algorithm and practical。...