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193 articles for “Power System Stability”
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Estimation of Power System Stabilizer Parameters Using Swarm Intelligence Techniques to Improve Small Signal Stability of Power System
Abstract: Interconnection of the power system utilities and grids presents a formidable challenge in front of design engineers. With the interconnections, power system has emerged as a more complex and nonlinear system. In recent years, small signal stability issues have gained much importance along with the conventional transient stability issues. Transient stability of the power system can be achieved with high gain and fast acting automatic voltage regulators (AVRs). However, AVRs …
Published in Trends in Electrical Engineering · Vol. 6, Issue 2, 2016 · pp. 16–25 Read article
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Damping Power System Oscillations using Fuzzy based Power System Stabilizer with Seven and Nine Linguistic Variables
Abstract: Low-frequency oscillations are created in a power system due to insufficient damping. Low-frequency oscillations in a power system can be damped using conventional power system stabilizer (CPSS) or fuzzy-based power system stabilizer (FLPSS). The performance of FLPSS is significantly affected by the number of linguistic variables used in designing FLPSS. In this paper, FLPSS is designed to damp the low frequency oscillations in a power system. The novelty of the …
Published in Trends in Electrical Engineering · Vol. 4, Issue 3, 2014 · pp. 35–40 Read article
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Power System Stabilizer Design based on Honey-Bee Mating Optimization Algorithm
Abstract: Power system stability is one of the main factors in performance of electrical system. A control system must retain frequency and voltage size under any distortion such as sudden increase in load, to leave a generator from circuit or cut off a transmission line in a constant level. In this paper, Honey-bee mating optimization (HBMO) algorithm has been used to design power system stabilizer. It is based on the mating …
Published in Trends in Electrical Engineering · Vol. 4, Issue 3, 2014 · pp. 18–25 Read article
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Power System Stability Enhancement Using UPFC
Abstract: AbstractThe UPFC consist of two voltage-source converters, one connected to the power system through a shunt transformer, whereas the other is inserted into the transmission line through a series transformer. These two voltage-source converters are coupled through a common dc capacitor link. From the control perspective, the UPFC can be decoupled into two branches; the parallel branch formed by the shunt transformer, voltage source converter and dc capacitor operating as …
Published in Journal of Instrumentation Technology & Innovations · Vol. 8, Issue 3, 2018 · pp. 1–7 Read article
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State Space Modeling and Robust Wind Power Generation System
Abstract: AbstractAs producing power from renewable energy is increasing, facing new problems emerging from this phenomenon is becoming a good challenge for power system engineers. One of these problems is the dynamic and transient stability of such systems when they are connected to a power network. In this paper, a variable speed cage machine wind generation system is considered as the case study. The concept of power system stabilizer, which has …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 8, Issue 2, 2017 · pp. 24–39 Read article
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Transient Stability Analysis of Power Systems with Static VAR Compensator: A Modeling Perspective
Abstract: Flexible AC Transmission Systems (FACTS) controllers have emerged as a vital tool to overcome the compensation challenges offered by modern power systems. Static Var Compensator (SVC), a type of FACTS controller plays a very important role in enhancing the power system performance, reactive power factor, maintain voltage stability. A thorough review and implementation of SVC with its various configurations is presented in this paper. Performance analyses of SVC and associated …
Published in Trends in Electrical Engineering · Vol. 13, Issue 3, 2023 · pp. 33–47 Read article
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Sustainable Energy Integration: A Holistic Review of Microgrid Advancements and Future Prospects
Abstract: The escalating global energy crisis, coupled with growing apprehensions about fuel depletion, electricity scarcities, and the escalating threat of global warming, underscores the urgency of seeking sustainable solutions. Clean and renewable energy sources such as solar and wind power offer potential remedies through distributed generators. Microgrids, positioned as crucial interfaces linking power generated by distributed generators based on renewable energy resources to the broader power system, have emerged as a …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 13, Issue 3, 2023 · pp. 40–48 Read article
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A PWM Based Series Compensator for Power System Performance Enhancement
Abstract: Enhancement of power system stability through a relatively new FACTS device named pulse width modulated series compensator (PWMSC) in the transmission line has been investigated in this article. The three-phase PWMSC is realized with a simple pulse width modulated (PWM) AC link converter consisting of four force-commutated switches and a three-phase diode bridge. The PWMSC is modeled as a continuously controllable series capacitive reactance in the transmission line of a …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 1, 2016 · pp. 12–25 Read article
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Optimal Allocation of STATCOM FACTS Controller for Loss Reduction and Voltage Stability Enhancement in a Nine Bus Power System
Abstract: It is being a huge concern about the complexity and severity of recent days’ power system. The main objective of the power system concern is the flexibility and fast control characteristics of power transmission between generating station to distribution grid. So, in order to have a reliable and quality power transmission, FACTS (flexible AC transmission system) controllers are introduced. Here, a shunt type of FACTS controller such as STATCOM (Static …
Published in Journal of Control & Instrumentation · Vol. 8, Issue 3, 2017 · pp. 12–16 Read article
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Finding The Most Sensitive Nodes on IEEE-14 Bus System and Adaptation of Protection Scheme
Abstract: Power system stability is one of the most significant concerns in power system. Providing continuous supply of electric energy to meet the load demand is a complex technical challenge. One of the main causes of voltage instability in a system is the occurrence of reactive power imbalance in the system. Reactive power will be unbalanced when there is a sudden increase or decrease in reactive power demand in the system. …
Published in Trends in Electrical Engineering · Vol. 6, Issue 1, 2016 · pp. 50–56 Read article
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UPFC based Power System
Abstract: AbstractUnified Power Flow Controller (UPFC) is one of the most versatile FACTS controller for the regulation of voltage and power flow in a transmission line, which can control power system parameters such as terminal voltage, line impedance and phase angle. Therefore it can be used not only for power flow control, but also for power system stabilizing control. Unified Power Flow Controllers are able to direct reactive and real power …
Published in Journal of Instrumentation Technology & Innovations · Vol. 8, Issue 3, 2018 · pp. 21–26 Read article
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Research on Synchronous Generators AC Excitation Regulation Control System
Abstract: Based on various methods to supply excitation power to the synchronous generator it is categorized in three different types of excitation systems for synchronous motor. The first one is DC excitation system, second is AC excitation system and third one is static excitation system. The increasing size of contemporary power systems ensures system dependability and stability. A better supply of power is vital and has a big influence on improving …
Published in International Journal of Electrical Power and Machine Systems · Vol. 2, Issue 2, 2024 · pp. 10–16 Read article
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Evolutionary Particle Swarm Optimization (EPSO) based technique considering Voltage Stability Margin for Reactive Power Reserve Optimization
Abstract: Reactive power reserve and voltage stability are one of the important parameters required for proper operation of the electrical power system. Voltage stability covers a broad span of phenomena in power systems and its applications. Voltage stability is defined as ability of power system to assist fixed bearable potential at every single bus of the system under standard operating conditions and when put through to a disturbance. At any instant …
Published in Journal of Power Electronics and Power Systems · Vol. 11, Issue 2, 2021 · pp. 36–41 Read article
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Real Time Stability Index for Angle Stability Assessment Using Synchrophasor Data
Abstract: The stress on the power transmission network has been increasing in recent time due to deregulated energy market, environmental constraints and limited investment in the transmission system. Hence, the power system is enforced to operate nearer to the stability limit and due to which it is required to estimate the system operating point as fast as possible with higher accuracy to maintain the system stability. The objective of this paper …
Published in Journal of Power Electronics and Power Systems · Vol. 5, Issue 3, 2015 · pp. 65–75 Read article
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Improvement of Power Quality & Voltage Profile Through the Optimal Placement of Artificial Intelligence based UPFC Controller
Abstract: Amidst the array of FACTS controllers, the Unified Power Flow Controller (UPFC) stands out as a distinguished member, renowned for its array of beneficial features. Recognized as among the most advanced FACTS devices, the UPFC excels in facilitating simultaneous control overactive and reactive power flow as well as voltage magnitude. FACTS devices are instrumental in managing power flow, enhancing transmission capacity, and optimizing power system stability. Increasing the capacity of …
Published in Journal of Instrumentation Technology & Innovations · Vol. 13, Issue 3, 2023 · pp. 18–26 Read article
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Methodical Strategy for STATCOMs Optimal Placement to Enhance Voltage Stability Margin Considering Circular Optimization Algorithm
Abstract: This study analyses voltage stability in the presence of STATCOM, focusing on the relationship between Voltage stability collapse and power system voltage stability. STATCOM and its optimal allocation are anticipated to enhance the voltage stability of the power system. Circular optimization algorithm is used to identify optimum sizing of STATCOM to increase voltage profile of the system. Practical simulation results are verified on IEEE 30 bus system considering multiple STATCOMs …
Published in Journal of VLSI Design Tools and Technology · Vol. 11, Issue 2, 2021 · pp. 14–23 Read article
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Power Framework Steadiness Change Utilizing UPFC
Abstract: This study presents utilization of UPFC in enhancing the voltage profile and upgrading the power framework security. UPFC can enhance the framework solidness when contrasted with different FACTS gadgets, with the assistance of UPFC. It is watched that the solidness of framework can be enhanced and voltage profiles straighten fundamentally with fusing UPFC. Keywords: UPFC, voltage profile, power system stability, PWMCite this ArtclePravin Thorat, Lakade CR. Power Framework Steadiness Change …
Published in Journal of Power Electronics and Power Systems · Vol. 8, Issue 2, 2018 · pp. 38–43 Read article
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Robust Design of Damping Controller for Power System using a combination of Flower Optimization algorithm and Optimal Control Theory
Abstract: The power system experience low frequency oscillations due to various disturbances. It is verynecessary to damp these oscillations else it will endanger the system security and stability. High gainand fast acting excitation systems do not provide the necessary damping torque and it can provide thesufficient synchronising torque only. Lack of damping torque causes the oscillations of generator rotor,So, Power system stabilizer (PSS) is used in the proposed work along with …
Published in Journal of Mechatronics and Automation · Vol. 8, Issue 3, 2021 · pp. 15–24 Read article
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STUDY OF SMALL SIGNAL DISTUBANCES IN MULTI MACHINE POWER SYSTEM USING MATLAB
Abstract: The distance of electricity transmission gets longer and longer, and capacity is also increasing, the voltage level by transport is becoming more and higher, while the stability problem of power system is more and more prominent. If the power system's stability is destroyed, it can cause a very serious problem. This report describes the computational technique used to solve the large and complex mathematical problem in an easier and convenient …
Published in Journal of Industrial Safety Engineering · Vol. 6, Issue 1, 2019 · pp. 36–66 Read article
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State Predominant Concept of PSS Design
Abstract: This paper presents the design of Power System Stabilizer (PSS) based on state predominant concept. An approach based on state predominant PSS with LQR for low frequency oscillation damping, Pole Placement and fuzzy control has been presented. The concept has been tested for both SMIF and multi machine system. The mathematical model of multimachine has been derived and the system has been simulated for various operating point changes, the results …
Published in Trends in Electrical Engineering · Vol. 2, Issue 1-2-3, 2012 · pp. 45–56 Read article