Voltage Stability Enhancement Using FACTS Devices

Meddeb, Asma; Jmii, Hajer; Amor, Nisrine; Chebbi, Souad

doi:10.1109/ic_aset49463.2020.9318220

Cited by 3 publications

(3 citation statements)

References 9 publications

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“…(3) Voltage collapse is a process that causes the voltage decreases to an inadequate level as a result of a cascade of circumstances that accompany voltage instability. (4) Limits for controlling voltage and reactive power of the generator, among the most significant impact of voltage collapse is an electric power system's inability to supply enough reactive power due to high reactive power consumption by the loads or the system itself.…”

Section: Voltage Of Stabilitymentioning

confidence: 99%

“…Voltage instability can result from a number of factors, including increased load demand, imbalanced load, disturbance, and changing system circumstances. Voltage instability may result from each bus having insufficient reactive power (3)(4)(5) . The aim of this study is to assess how well FACTS controller can recover system voltage in load side a metropolitan area by implementing a reactive power compensation approach (6) .…”

Section: Introductionmentioning

confidence: 99%

“…FACTS Controllers are implemented to overcome all this circumstances obtained the result in normal condition, faulty condition and mitigate by STATCOM and try to improve the voltage profile and reactive power compensation. The simulation results are used for the purpose of testing the 9-bus system shows in Figure 2 , and are demonstrated by adding STATCOM which increases the system's accuracy in terms of voltage stability enhancement (3,4) .…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Performance Analysis of Various FACTS Controllers Used for Voltage Stability Improvement in Power System

Chavhan,

Amalraj,

Singh

et al. 2023

IJST

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Background:In order to maintain a reliable and safe electrical grid, voltage stability is considered as a crucial component of power system. The incorporation of Static Compensator (STATCOM) has been a viable approach in recent times to improve voltage stability and alleviate problems related to voltage instability. Methodology: An extensive investigation of the effects of FACTS devices is included in this article, including STATCOMs, on voltage stability within power systems. Mathematical modelling and simulated Doubly Fed Induction Generator (DFIG) based wind turbine is integrated with IEEE-9 bus in MATLAB2020. Finding: This study employs an advanced modelling and simulation technique to assess the performance of STATCOM in various scenarios, considering different fault conditions and contingencies. Overall work is implemented in MAT-LAB2020. Simulation results are obtained in the terms of voltage profile, reactive power, wind voltage and active power. The values of the parameters before fault is obtained with a reactive power of -33.44 MVAR and voltage of -0.5586 V. After fault, the reactive power is measured as -85.38 MVAR and Voltage is increased to -0.1766 V. Finally, by using STATCOM, the reactive power is reduced to -30.29 MVAR and Voltage -0.5690 V. Further the obtained results are evaluated and compared with the other approaches. Additionally, the paper investigates the optimal placement of STATCOM at load side to maximise their effectiveness in voltage stability enhancement. Novelty and Application: This study contributes a valuable knowledge to power system operators, planners, and researchers, facilitating the informed decisions for the integration and utilisation of STATCOM technologies to ensure the robustness and reliability of modern electrical grids.

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Section: Voltage Of Stabilitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Performance Analysis of Various FACTS Controllers Used for Voltage Stability Improvement in Power System

Chavhan,

Amalraj,

Singh

et al. 2023

IJST

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Performance and robustness analysis of V-Tiger PID controller for automatic voltage regulator

Gopi,

Reddy,

Bajaj

et al. 2024

Sci Rep

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This paper presents a comprehensive study on the implementation and analysis of PID controllers in an automated voltage regulator (AVR) system. A novel tuning technique, Virtual Time response-based iterative gain evaluation and re-design (V-Tiger), is introduced to iteratively adjust PID gains for optimal control performance. The study begins with the development of a mathematical model for the AVR system and initialization of PID gains using the Pessen Integral Rule. Virtual time-response analysis is then conducted to evaluate system performance, followed by iterative gain adjustments using Particle Swarm Optimization (PSO) within the V-Tiger framework. MATLAB simulations are employed to implement various controllers, including the V-Tiger PID controller, and their performance is compared in terms of transient response, stability, and control signal generation. Robustness analysis is conducted to assess the system's stability under uncertainties, and worst-case gain analysis is performed to quantify robustness. The transient response of the AVR with the proposed PID controller is compared with other heuristic controllers such as the Flower Pollination Algorithm, Teaching–Learning-based Optimization, Pessen Integral Rule, and Zeigler-Nichols methods. By measuring the peak closed-loop gain of the AVR with the controller and adding uncertainty to the AVR's field exciter and amplifier, the robustness of proposed controller is determined. Plotting the performance degradation curves yields robust stability margins and the accompanying maximum uncertainty that the AVR can withstand without compromising its stability or performance. Based on the degradation curves, robust stability margin of the V-Tiger PID controller is estimated at 3.5. The worst-case peak gains are also estimated using the performance degradation curves. Future research directions include exploring novel optimization techniques for further enhancing control performance in various industrial applications.

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Design of Static Var Compensator Model for Long Transmission Line

Suneet Mane,

Rajesh Jaiswar,

Lalit Nishad

et al. 2023

IJARSCT

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In general, transmission lines were operated at very unbalanced conditions in power systems. Some lines were operated at overloaded conditions at all times, pushing them closer to their stability limitations. This is a result of the rising energy demand and concurrent economic restrictions placed on the generation of electricity. Additionally for stability purposes, the transmission lines’ power flow must be restricted. Voltage stability is one of the most difficult studies and even with tried- and-true methods and technology for enhancing power system security, this challenge still requires extra work to ensure the stability of the system. One approach being examined to address issues with power system stability is the use of flexible AC transmission system (FACTS) devices. In this paper, comparative study of a 66kV system consisting of 400 km long transmission line under various load conditions and their voltage profile improvement using shunt compensation type of FACTS known as Static VAr compensator (SVC) is demonstrated using MATLAB SIMULINK software.

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Voltage Stability Enhancement Using FACTS Devices

Cited by 3 publications

References 9 publications

Performance Analysis of Various FACTS Controllers Used for Voltage Stability Improvement in Power System

Performance Analysis of Various FACTS Controllers Used for Voltage Stability Improvement in Power System

Performance and robustness analysis of V-Tiger PID controller for automatic voltage regulator

Design of Static Var Compensator Model for Long Transmission Line

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