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Over the recent period of time power quality problems have been remarked as a buzzing issue with regard to promoting delicate and miniature electronic devices where Voltage sag problem is the most frequently occurring and detrimental power quality problems. Thus, the purpose of this study was to assuage voltage sag problem using proposed Distribution Static Compensator (D-STATCOM) along two controlling methods namely FIS and PI.Being a part of implementation, two control methods such as Proportional Integral (PI) and Fuzzy Inference (FIS) were introduced to ascertain the injection of current and comparison of timely responses. The results showed that FIS and PI were capable to recover the voltage sag by 98.20%, 96.15%, 93.55% and 95.10 %, 94.45%, 90 % at singlephase, two-phase, and three-phase, respectively , while, without D-STATCOM it was only 24% at three phases.In the end, the newly improved D-STATCOM power distribution system was accomplished as a proficient compensator for the reactive power requirement of the load. Furthermore, it is to be anticipated that in future this proposed distribution system device will be recognized as a new effective customer power device to mollify voltage sag problem commercially.

international journal of advanced research in electrical, electronics and instrumentation engineering

Design and Simulation Studies of D-STATCOM for MitigatingVoltage Sag Problem by Using Fuzzy Inference System, and Proportional Integral based on controlled application