Smart Wires &amp;#x2014; A distributed, low-cost solution for controlling power flows and monitoring transmission lines

Due to various economic reasons modern power systems are forced to operate closer and closer to their limits. The increased risk of operation, which is manifested in heavily loaded lines in normal or contingency cases, may lead to more frequent power outages and even severe blackouts. The installation of FACTS devices such as TCSCs is instrumental in alleviating the congestions and thus can be used to reduce the risk of power system operation. In this paper, an optimization problem is formulated to optimally allocate TCSCs in a power system for risk minimization. The objective is to determine the optimal locations and sizes of TCSCs which minimize the installation cost while maintaining the overall risk below a certain value for a given operating point. The formulated problem is solved using an Evolutionary Algorithm. The effectiveness of TCSCs in reducing the risk of system operation is shown for the IEEE 14-bus system.

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“…This model is valid not only for traditional TCSCs but also for newly developed devices such as DFACTS [9].…”

Section: Modeling Of Tcscmentioning

confidence: 94%

Optimal TCSC allocation in a power system for risk minimization

Shchetinin

Hug

2014

2014 North American Power Symposium (NAPS)

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“…Increased penetration of variable renewable resources and market driven generation dispatch in combination with a lack of investment in transmission assets has caused an increase in transmission bottlenecks [1]. Bottlenecks create congestions that decrease reliability, restrict competition, and increase prices to consumers due to the resulting suboptimal generation dispatch.…”

Section: A Motivationmentioning

confidence: 99%

“…Redirecting power flow by controlling parameters such as the reactance of a line can increase the loading margin of the overall transmission grid by pushing power to lines with spare capacity. Flexible AC Transmission Systems (FACTS) [2] or the newly being developed distributed version called DFACTS [1], [3], [4] provide such power flow control capabilities and improve the ability of the system operator to ensure secure system operation. This paper investigates the incorporation of DFACTS into the SCOPF and uses Benders decomposition to solve the resulting optimization problem.…”

Section: A Motivationmentioning

confidence: 99%

A benders decomposition approach to corrective security constrained OPF with power flow control devices

Mohammadi

Hug

Kar

2013

2013 IEEE Power &Amp; Energy Society General Meeting

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This paper studies a DC Corrective SecurityConstrained OPF (SCOPF) in electricity networks in which the transmission lines are potentially instrumented with Distributed Flexible AC Transmission Systems (DFACTS). Hence, in the considered SCOPF, the transmission lines' reactance along with the generators' output are considered as control variables. The objective of this SCOPF model is to obtain minimum generation cost while maintaining the system N-1 secure. Benders decomposition is applied to solve the discussed DC SCOPF problem. Case studies for the IEEE 30-bus test system, the IEEE 39-bus test system and the IEEE 118-bus test system are presented. The performance of Benders decomposition is compared to a brute force approach, in which the DC SCOPF is solved as a single optimization problem, with respect to run-time and accuracy of the results.

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“…The active power balance at all buses is enforced by (5). The active power flows on transmission lines considering the injected voltages of DSSCs are calculated by (6).…”

Section: Maximising the System Loadabilitymentioning

confidence: 99%

Optimal distributed static series compensator placement for enhancing power system loadability and reliability

Dorostkar-Ghamsari

Fotuhi‐Firuzabad

Aminifar

et al. 2015

IET Generation, Transmission & Distribution

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Distributed static series compensator (DSSC) is a member of the family of distributed flexible AC transmission system devices that can be attached directly to conductors of transmission lines. DSSCs are able to compensate for and adjust the line reactance; thus, they could be widely used in stability-limited transmission systems. Owing to economic matters, the optimal placement of DSSCs is of a great interest from practical viewpoints. This study presents an approach to find the optimal locations of DSSCs to enhance the system loadability and reliability using the DC load flow model. The optimisation problem is solved using the mixed-integer linear programming. A compromise between improving the system loadability and reliability is fulfilled and a wide range of non-dominated optimal solutions is calculated. The final solution is then selected using the fuzzy satisfying method. Numerical studies are conducted on the IEEE reliability test system (IEE-RTS). Nomenclature

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Smart Wires — A distributed, low-cost solution for controlling power flows and monitoring transmission lines

Cited by 32 publications

References 4 publications

Optimal TCSC allocation in a power system for risk minimization

Optimal TCSC allocation in a power system for risk minimization

A benders decomposition approach to corrective security constrained OPF with power flow control devices

Optimal distributed static series compensator placement for enhancing power system loadability and reliability

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