Economical Insertion of Static Reactive Power Compensators in Power Systems (Dept.E)

Sahar Kaddah,K Shebl,E Haikal

doi:10.21608/bfemu.2020.127778

Sahar Kaddah, K Shebl + Show 1 more

Open Access

https://doi.org/10.21608/bfemu.2020.127778

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Abstract

The appearance of flexible AC Transmission System (FACTs) controllers Is completely changing the way transmission systems are controlled and operated. Most facts controllers are basically based on variable shunt and/Qr series compensation of transmission systems. One of the most famous type of FACTs Is the Static VAr Compensator to r (SVC), which is basically used liS It ture for both voltage and voltage stability problems. However, SYC may also affects the Available Transfer Capability of the system (ATC), line Overload and losses. As the power system is economical1y operated, hence it is important to study the. economical effects of SVC on power system opera lion . This paper presents a construction of II complete Cost Benefit Analysis (CBA) model (or SVC insertion into power system 10 select the best location and size for that insertion . Generally CBA is based on comparison between the cost and benefit for a specific alternative. In our case, the cost components are mainly the cost of the SVC device and its cost of installation anti maintenance. While the benefit components are that due to Improving voltage stability in terms of increasing the voltage stability margin (VSM), benefits due to extending the ATC, and the benefits as a result of n:iievillg line overloads in the system in terms of reducing the line overload (LO) and finally reducing the system losses. However for the same hardware the coast is the same. So, the. most economical alternative is the one with the maximum total benefit. This paper also, introduces a new Unified Index (UI) (or ranking contingencies Tile proposed C DA algorithm is tested for SVC in5ertion into the I EEE 26-bus system subject to contingencies.

Highlights

The appearance of Fl exible AC Tr!lnsmiS5ion System (FACTs) controllers Is comp letely cha nging the way t rans m i~sion systems are coni rolled and operated
The main objectives of such devices can be restated as increase the power transfer capability of the transmission networks, extend stability margin of power system, provide di rC(1 conlrol of power over designated transm ission routes, increase the power system perform~n ce by aelivering or absOlbing reactive power. provide significant benefits in lemu o f greater fiexibilit y, and reduce system losses as it provide the required
One of the mosl famous type of FACTs is the Sialic VAr Compensator (SVC), whicn is mainly used as a cure for both vo llage and voHage stability problems [2]

Summary

Introduction

The appearance of Fl exible AC Tr!lnsmiS5ion System (FACTs) controllers Is comp letely cha nging the way t rans m i~sion systems are coni rolled and operated. As the power systems arc always operated from economic point of view, thcre is a need to perform economic analysis of SVC devices insertion into power systems. The main purpose of Ihis econom ic analysis is !O select the most economical location and size of SVC to be inserted at a specific case.

Results

Conclusion