Modeling and Harmonic Study of Non-linear Domestic Loads

Anikendu Maitra, Sandip Das, Sajal Kumar Banbyopadhyay.

Sajal Kumar Banbyopadhyay.

• This paper discusses the modelling of nonlinear electrical loads used in domestic systems. Harmonic analysis of the distribution system is essential to study the behaviour of equipment connected in the non-sinusoidal system environment for designing and optimal location of filters. Simulation models are developed for various nonlinear loads. Analysis of current harmonics is performed for these loads individually. These models are used for harmonic analysis of typical loads. Finally the THD of the combined loads is analyzed by using all these loads put together. To minimize these harmonics in supply currents a three phase harmonic filter is designed in MATLAB/SIMULINK environment.