Advanced technique for optimal allocation of static var compensators in large-scale interconnected networks

Interconnecting power transmission systems provide reliability of electric power supply. The security of the system is however questioned when a disturbance in any part of the interconnected system causes instability in the entire network. Unified Power Flow Controller (UPFC), which is a member of the flexible alternating current transmission system (FACTS) family, has the capability of controlling active and reactive power flow in a transmission line thereby improving the voltage stability of the system especially at the 500 kV configuration level. The performance of a 161-kV UPFC modelled in SimPowerSystems is tested on Ghana's power transmission network. The optimal placement of the UPFC is done using fast voltage stability index (FVSI) and maximum loadability assessment (MLA). The results show that the device improved the connecting bus voltage from 0.88 p.u. to 0.98 p.u. Active power loss in the network was also reduced from 13.40 MW to 10.39 MW when the UPFC was in circuit.

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“…The adjoining critical line is determined using the FVSI. This index is determined using equation ( 1) as proposed by [26].…”

Section: Methodsmentioning

confidence: 99%

Utilizing Unified Power Flow Controller for Stability Improvement of the Electric Power Transmission System of Ghana

Asihene

Effah

Normanyo

2020

JNTE

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Advanced Method for Optimal Allocation of FACTS Devices Using Line Stability Index Combined with Meta-Heuristic Optimization Techniques

Taleb

Ali

Salem

et al. 2019

2019 21st International Middle East Power Systems Conference (MEPCON)

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Advanced technique for optimal allocation of static var compensators in large-scale interconnected networks

Cited by 2 publications

References 15 publications

Utilizing Unified Power Flow Controller for Stability Improvement of the Electric Power Transmission System of Ghana

Utilizing Unified Power Flow Controller for Stability Improvement of the Electric Power Transmission System of Ghana

Advanced Method for Optimal Allocation of FACTS Devices Using Line Stability Index Combined with Meta-Heuristic Optimization Techniques

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