Distribution network

Compensation of on-linear loads and load balancing are among important issues in modern distribution systems. For this purpose, the need for DSTATCOM (distribution static compensator) for improvement of the power quality is increasingly felt. In this paper, by introducing the new control method the role of using DSTATCOM in improvement of the power quality in four-wire distribution systems in different voltage conditions is investigated. This role is evaluated in load balancing, reactive power compensation and decrease of harmonics. A three-phase four-wire distribution system that fuels the non-linear load in different voltage conditions is considered for stimulation studies. The results of stimulation have been presented by means of MATLAB/SIMULINK software which shows the control method ability of DSTATCOM in improving the power quality. 1