Hi,
I'm doing a project on Power quality improvement in transmission line using D-statcom.

This paper presents the enhancement of voltage sags,
harmonic distortion and low power factor using Distribution
Static Compensator (D-STATCOM) with LCL Passive Filter in
distribution system. The model is based on the Voltage Source
Converter (VSC) principle. The D-STATCOM injects a current
into the system to mitigate the voltage sags.LCL Passive Filter
was then added to D-STATCOM to improve harmonic distortion
and low power factor.

I'm not understanding the design part of controller block between PI controller and PWM generator.

thanks,

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http://studentbank.in/report-power-quality-full-report

http://studentbank.in/report-multiconver...em-mc-upqc