D-FACTS technology can suppress effectively voltage fluctuation

voltage flick

voltage temporary drop and interruption

reduce harmonics and distortion

eliminate unbalance of three phase voltage

so as to improve wave form and magnitude of voltage and power factor. The paper emphatically analyzes D-FACTS devices and technology: Static Compensator

Active Power Filter

Unity Power Factor Converter

Dynamic Voltage Regulator

and SSCB

SSSC

UPFC

UPS

CLD

etc. D-FACTS is superior to FACTS applied in transmission power system from point of technology and economics. The article takes conclusion that D-FACTS is one of ultimate approaches to improve power energy quality

when distribution network requires integraged compensation.