# Distribution Static Synchronous Compensator

**The mathematical model of distribution static synchronous compensator D-STATCOM in each sequence equivalent circuit of unbalanced load is established and the feedback linearization applied to.**

**Distribution static synchronous compensator**.
This paper presents a direct current-controlled static reactive power compensator DSTATCOM for voltage quality improvement of low-medium distribution network.
GTO IGBT to control power flow and improve transient stability on electrical power networks.
Distribution Static Synchronous Compensator D-STATCOM is a shunt compensator in the distribution systems that one of the most important tasks is to improve the imbalance reduce and eliminate the nonlinear loads harmonics.

This study presents a comprehensive review of the various DSTATCOM configurations for single-phase two-wire. The STATCOM basically performs the same function as the static var compensators but. It provides grid operators with reactive power compensation and improved range of operational voltage with a faster response time.

A STATic synchronous COMpensator STATCOM is nowadays a fast-acting device capable of providing or absorbing reactive current and by that regulating the voltage at the point of connection to a power grid. STATCOM or Static Synchronous Compensator is a shunt device which uses force-commutated power electronics ie. It is used for harmonic elimination according to IEEE-519.

It is also a member of the so-called Flexible AC Transmission System FACTS devices. 2 Distribution static synchronous compensator DSTATCOM 7 - 9 is a voltage source converter and is connected in shunt at the point of common coupling PCC with the distribution network. Distributed generation resources such as photovoltaic PV array can be used as the DC input of D-STATCOM.

First the simulations were performed without the DSSSC. It produces the output voltage in quadrature with the line current such that the overall reactive voltage drop across the line is increased or decreased. Distribution static synchronous compensator DSTATCOM is one of the shunt connected custom power devices used to improve PQ voltage and reactive power support and to increase the capability of the auxiliary service for utility grid.

A coupling transformer is installed between the distribution network and the DSTATCOM for maintaining isolation between the two. Static Synchronous Series Compensator SSSC SSSC a series version of STATCOM and it is an advanced kind of control series compensation. This paper evaluates the performance of Distribution Static Synchronous Compensator DSTATCOM using a Voltage Reference Configuration VRC and the Instantaneous Power Theory PQ control scheme for power quality improvement in three-phase three-wire distribution system.