Optimal Location of UPFC for ATC Enhancement in Restructured Power Systems

Farahmand, Hossein; Rashidinejad, Masoud; Gharaveis, A.; Shahriary, G.A.

doi:10.1109/lescpe.2007.4437374

Cited by 6 publications

(3 citation statements)

References 10 publications

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“…LIM1 represents the impact of UPFCs on the transfer capability of the system and is similar to the objective function used by [6] to find optimal UPFC location. LIM2 represents the UPFC application impact on power losses in the transmission system.…”

Section: Evaluation Of Upfc Locationmentioning

confidence: 99%

“…A method is proposed in [5] to apply a UPFC to enhance ATC by increasing the transient stability margin of the power system. The optimal location of UPFCs to enhance the ATC is solved in [6] using Genetic Algorithm. Application of UPFCs and IPFCs to enhance ATC is studied in [7] using optimal power flow and it was shown that better ATC enhancement can be achieved by UPFC application.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Cost/Worth Approach to Evaluate UPFC Impact on ATC

Rajabi-Ghahnavieh¹,

Fotuhi‐Firuzabad²,

Shahidehpour³

et al. 2010

Journal of Electrical Engineering and Technology

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-Available transfer capability (ATC) is a measure of the transfer capability remaining in a transmission system. Application of unified power flow controllers (UPFCs) could have positive impacts on the ATC of some paths while it might have a negative impact on the ATC of other paths. This paper presents an approach to evaluate the impacts of UPFCs on the ATC from a cost/worth point of view. The UPFC application worth is considered as the maximum cost saving in enhancing the ATC of the paths due to the UPFC implementation. The cost saving is considered as the cost of optimal application of other system reinforcement alternatives (except for UPFC) to reach the same ATC level obtained by UPFC application. UPFC application costs include the maximum cost of alleviating the probable negative impact on the ATC of some paths caused by implementing UPFCs. Optimal system reinforcement is used for systems with UPFCs to determine the aforementioned cost. The proposed method is applied to the IEEE-RTS and the results are evaluated through a sensitivity analysis. The cost/worth of UPFC application is also used to develop an index for optimal UPFC location and the results are compared with those of other indices. A comparison is finally made with the results obtained using an existing ATC allocation profit-based approach to determine UPFC application worth.

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Section: Evaluation Of Upfc Locationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Cost/Worth Approach to Evaluate UPFC Impact on ATC

Rajabi-Ghahnavieh¹,

Fotuhi‐Firuzabad²,

Shahidehpour³

et al. 2010

Journal of Electrical Engineering and Technology

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show abstract

“…According to the NERC definition, available transfer capability (ATC) is a measure of the transfer capability remaining in the physical transmission network for future commercial activity over and above already committed uses. Farahmand and Rashidinejad [8] proposed a novel technique to identify the optimal location of UPFC. Based on repeated AC power flow method, the ATC enhancement using UPFC was calculated.…”

Section: Introductionmentioning

confidence: 99%

Optimal Power Flow with Hybrid Distributed Generators and Unified Controller

Ravi¹,

R²,

D³

et al. 2012

TELKOMNIKA

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Abstrak Studi aliran daya yang optimal (OPF) dilakukan untuk mencapai salah satu tujuan yang diantaranya untuk meminimalisasi biaya atau kerugian melalui perhitungan kemampuan transfer daya yang tersedia (ATC) dalam lingkungan yang terderegulasi. Pembangkitan terdistribusi (DG) jenis non- Kata kunci: aliran daya optimal (OPF), kemampuan transfer daya yang tersedia (ATC), optimasi particle swarm (PSO), pengontrol aliran daya terpadu (UPFC) Abstract Optimal power flow (OPF) study is conducted on a power system to achieve one of the following objectives: cost/loss minimization or available transfer capability (ATC) calculation in a deregulated environment. Distributed generation (DG) is a small source of electric power conversion from nonconventional energy sources and Hybrid DGs which often the most cost-effective and reliable way to produce power. The optimality of control variables and minimum value of objective functions in OPF study would definitely change when DGs are interconnected to the grid. The change would be respect to the location, quantity and combination of power injection by DGs. On the other hand, FACTS controllers are effective in utilizing the existing of transmission network which is very important especially in a deregulated system. Unified power flow controller (UPFC), a second generation FACTS controller, is well known for minimizing the cost of generation/losses with a good voltage profile as well as for ATC improvement. This paper conducts a detailed OPF study on a 9 bus system for the above mentioned three objectives to analyze the effect of DGs with and without UPFC. From the results, it is found that hybrid DGs along with UPFC yields better performance in many aspects. Keywords: available transfer capability (ATC), optimal power flow (OPF), particle swarm optimization (PSO), unified power flow controller (UPFC). IntroductionOPF is carried out to optimize the power flow solution of a large scale power system by minimizing one of the selected objective functions: economic costs or system losses. While maintaining an acceptable system performance in terms of generator capability limits and the output of the compensating devices, optimized control parameters are determined [1]. Capitanecu [2] addresses the main challenges to the security constrained Optimal Power Flow computations. The state of the art computational solution for the problem is reviewed and the challenges and the approaches to face them are identified. Bhaskar [3] proposed a hybrid genetic algorithm for solving OPF problem to minimize the fuel cost.

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Optimal power flow with UPFC using security constrained self-adaptive differential evolutionary algorithm for restructured power system

Acharjee

2016

International Journal of Electrical Power & Energy Systems

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Optimal Location of UPFC for ATC Enhancement in Restructured Power Systems

Cited by 6 publications

References 10 publications

A Cost/Worth Approach to Evaluate UPFC Impact on ATC

A Cost/Worth Approach to Evaluate UPFC Impact on ATC

Optimal Power Flow with Hybrid Distributed Generators and Unified Controller

Optimal power flow with UPFC using security constrained self-adaptive differential evolutionary algorithm for restructured power system

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