Abstract
Distributed series FACTS controllers provides active power flow control through transmission line in cost effective and reliable manner. Distributed Static Series Compensator (DSSC) is one of the distributed series FACTS controller. It is a low power device which can be distributed over a transmission line at regular intervals emulating a small reactance in the line to control active power flow. Like SSSC, it injects a small voltage in series with the line in quadrature with line current. To achieve noticeable change in power flow, multiple number of DSSC devices need to be connected in the line. This paper presents DSSC to enhance system loadability index in the line. Optimization technique is applied to find optimum emulated reactance by DSSC such that all the lines carrying power flow in their thermal limits. Location of DSSC placement is also investigated to maximize system loadability index. MATLAB simulation results are discussed in IEEE-14 bus DSSC connected system.
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