Abstract:

The paper analyze and specify the voltage quality standards of Vietnam and contries in the word. In order to analyze this standards one of usefull methods – Matlab environments simulation is used. The simulation results are built base on maths equations, electromagnetic relation equations of feeders, cables as well as voltage of rotor and stator in 6kV induction machines. They are finally utilized to caculate and analyze some power quality factors such as votage drop, voltage deviation… This result will be compared with world’s and Vietnamese power quality codes and applied to point out solutions