Voltage Stability Enhancement in Power Systems with Automatic Facts Device Allocation

Nascimento, Sidnei; Gouvêa, Maury Meirelles

doi:10.1016/j.egypro.2016.12.129

Cited by 37 publications

(20 citation statements)

References 16 publications

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“…Flexible AC Transmission Systems (FACTS) devices play a key role these days to enhance voltage stability, power transmission capacity and to decrease transmission line congestions [4][5][6][7][8][9]. Technical comparisons of FACTS are discussed in [10].…”

Section: Stability Issues Of Power Transmissionmentioning

confidence: 99%

Optimal Placement, Sizing and Coordination of FACTS Devices in Transmission Network Using Whale Optimization Algorithm

et al. 2020

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Flexible AC Transmission Systems (FACTS) play an important role in minimizing power losses and voltage deviations while increasing the real power transfer capacity of transmission lines. The extent to which these devices can provide benefits to the transmission network depend on their optimal location and sizing. However, finding appropriate locations and sizes of these devices in an electrical network is difficult since it is a nonlinear problem. This paper proposes a technique for the optimal placement and sizing of FACTS, namely the Thyristor-Controlled Series Compensators (TCSCs), Shunt VARs Compensators (SVCs), and Unified Power Flows Controllers (UPFCs). To find the optimal locations of these devices in a network, weak buses and lines are determined by constructing PV curves of load buses, and through the line stability index. Then, the whale optimization algorithm (WOA) is employed not only to find an ideal ratings for these devices but also the optimal coordination of SVC, TCSC, and UPFC with the reactive power sources already present in the network (tap settings of transformers and reactive power from generators). The objective here is the minimization of the operating cost of the system that consists of active power losses and FACTS devices cost. The proposed method is applied to the IEEE 14 and 30 bus systems. The presented technique is also compared with Genetic Algorithm (GA) and Particle Swarm Optimization (PSO). The findings showed that total system operating costs and transmission line losses were considerably reduced by WOA as compared to existing metaheuristic optimization techniques.

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Section: Stability Issues Of Power Transmissionmentioning

confidence: 99%

Optimal Placement, Sizing and Coordination of FACTS Devices in Transmission Network Using Whale Optimization Algorithm

et al. 2020

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“…Nascimento et al in [161] proposed a method to determine the TCSC and SVC location using an adaptive evolutionary algorithm (EA) for improving voltage profile, increasing voltage collage margin and reducing reactive power flow losses via three indicators; voltage deviation, reactive power losses and Lindex. The proposed technique was implemented in IEEE 14 and IEEE 57 test systems and compared to other two heuristic optimization methods: PSO and SA.…”

Section: B Voltage Stability Indicesmentioning

confidence: 99%

A Comprehensive Review on Optimal Location and Sizing of Reactive Power Compensation Using Hybrid-Based Approaches for Power Loss Reduction, Voltage Stability Improvement, Voltage Profile Enhancement and Loadability Enhancement

et al. 2020

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“…The applications of FACTS controllers enhance the voltage stability and loading margin of the system. The addition of UPFC at a weakest bus of the power system improves the voltage stability and loading margin [7]. The UPFC can improve the power quality of the system [12].…”

Section: Introductionmentioning

confidence: 99%

Power Flow Control by Unified Power Flow Controller

Khalil

Khan

et al. 2020

Mehran Univ. res. j. eng. technol.

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The demand of energy usage is increasing rapidly and to meet the energy requirements, best possible transmission systems should be adopted to avoid energy losses in our transmission systems. In Pakistan’s WAPDA (Water & Power Development Authority) system, the rapid increase in load and less generation capacity has increased load shedding thought the country. The government has planned to increase the generation capacity but the supply companies are facing line load-ability, environmental constraints, power limitations problems etc. Most of the supply companies prefer to extend the existing electrical networks instead of building new network to reduce financial burdens. In this paper the implementation of the FACTS (Flexible AC Transmission Systems) Devices in an electrical network is described. The FACTS devices enhance power transfer capacity of the line without adding new transmission line. These devices also protect the system from overloading in case of any contingency in the electrical network. The control of power flow, reactive power compensation and voltage control are the main capabilities of FACTS devices. This paper describes the impacts of FACTS devices on improving the voltage stability and power handling capability of a transmission line. The proposed methods for the controllable flow of active and reactive power in a transmission line are also elaborated. A simple electrical system is examined to explain the improvement in the constraints of power system using FACTS devices.

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Voltage Stability Enhancement in Power Systems with Automatic Facts Device Allocation

Cited by 37 publications

References 16 publications

Optimal Placement, Sizing and Coordination of FACTS Devices in Transmission Network Using Whale Optimization Algorithm

Optimal Placement, Sizing and Coordination of FACTS Devices in Transmission Network Using Whale Optimization Algorithm

A Comprehensive Review on Optimal Location and Sizing of Reactive Power Compensation Using Hybrid-Based Approaches for Power Loss Reduction, Voltage Stability Improvement, Voltage Profile Enhancement and Loadability Enhancement

Power Flow Control by Unified Power Flow Controller

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