Enhancement of power quality for load compensation using three different FACTS devices based on optimized technique

Abstract

Summary This paper presents a study of the interaction between loads, utility grids, and different devices of power quality enhancement. The essential motive of this study is mainly focused on the use of power electronic devices that are applicable to distribution systems, very responsive to disturbances in order to provide power quality improvement and solutions, and also to develop a model of these three FACTS devices (DVR, DSTATCOM, and UPQC) for enhancement of power quality in electrical grids. The DVR is a power quality that is applied as an efficient solution for the safeguard of sensitive loads with voltage troubles in distribution systems like voltage dips and rises related to faults. DVR efficiency depends upon the control method performance involved in switching the inverters. However, the transient response of the DSTATCOM compensating is very significant for nonlinearly varying and unbalanced loads. The UPQC is applied as an active power conditioning unit to alleviate both voltage and current harmonics at a distribution of the power system grid. The response of UPQC at most depends on how readily and carefully compensation signs are obtained by using control units. The various kinds of controllers are suggested for three devices applied here like PI and fuzzy logic controllers. The above modeling has been carried out on a distribution system for the power quality enhancement. A new design for the enhancement of PQ‐based FACTS for the test results given from different control methods such as PI and FLC is given in this paper.

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“…Figure 2 shows the general configuration of MMPS incorporated with SSSC. 16,21,34,38 The swinging between the two systems leads to instability, if any disturbance occurs. To enhance the system stability,…”

“…37 The improvement in power quality with different FACTS devices using PI and fuzzy controllers are analyzed and compared. 38 Different FACTS devices are deployed to enhance the power system stability. The effect of using FACTS devices on stability of the system is clearly presented.…”

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