Abstract

Voltage sag and reactive power are the important power quality problems faced by utilities and many industries. Mostly reactive power is consumed by industrial inductive loads. This causes lower power factor. Consequently it limits the active power flow in the line. DSTATCOM (Distribution static compensator) is a shunt connected FACTS device, used for reactive power compensation especially in distribution system. DSTATCOM in multi bus system is capable of reducing the losses and hence improving the voltage regulation. This paper deals with voltage source converter based DSTATCOM, for compensation of active and reactive power in distribution system. The voltage source converter (of DSTATCOM) is controlled by controlling the dc link voltage. Implementation of DSTATCOM in distribution system is carried out in a MATLAB environment.

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