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10th EAI International Conference on Advancements of Science and Technology, EAI ICAST 2022

作者： Jember, Yosef Berhan Workineh, Tewodros Gera Yetayew, Tefera T. Dinkayow, Meresa Bahir Dar Ethiopia Adama Science and Technology University Adama Ethiopia

ISBN: (纸本)9783031411724

The fluctuating wind speed affects the power output of WECS (Wind Energy Conversion Systems), which might lead to problems with power quality when it is integrated into the grid network. Numerous difficulties have emerged as a result of the tremendous proliferation of interconnected power systems. These include oscillations, power swings, blackouts, and outages caused by natural disasters, and system flaws at transmission lines, load centers, and generation sites. This can lead to power system instability, which makes it difficult to plan for and schedule maintenance. FACTS (flexible alternating current transmission system) contribute to the enhancement of transient stability as well as the damping of oscillations, in addition to the control of active and reactive power. It must, however, be placed in a specific power network, be appropriately sized, and use the best FACTS device. The purpose of this study is to examine the impact of integrating FACTS into the 153 MW Adama II wind farm with the national grid of Ethiopia. The proposed wind farm is modeled using primary data while the grid side is represented by an IEEE 14-bus test system. Using the MATLAB/PSAT software tool, the ideal type of FACTS and their corresponding locations are determined by simulating the power flow in the combined WECS-IEEE 14 bus network. The IPFC (interline power flow controller) and UPFC (unified power flow controller) are added, together with the system response without FACTS, to compare performance. These devices’ effects on improving transient stability, reducing loss, damping power system oscillation, and supporting the voltage profile from the WECS to the distribution system have all been studied including under fault scenarios. The addition of IPFC and UPFC to the overall test systems significantly improves transient stability, dampens the multi-machine oscillations, and shortens the oscillation transient period. For this case study, FACTS devices decrease power losses in underperf

关键词： Flexible alternating current transmission system interline power flow controller Transient stability Unified power flow controller Wind farm

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Control performance standards based load-frequency controller considering redox flow batteries coordinate with interline power flow controller

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JOURNAL OF power SOURCES 2012年 219卷 292-304页

作者： Chidambaram, I. A. Paramasivam, B. Annamalai Univ Dept Elect Engn Annamalainagar 608002 Tamil Nadu India

This paper proposes a sophisticate application of redox flow batteries (RFB) coordinate with interline power flow controller (IPFC) for the improvement of Load Frequency Control (LFC) of a multiple units two- area power system. The interline power flow controller is to stabilize the frequency oscillations of the inter-area mode in the interconnected power system by the dynamic control of tie-line power flow. The redox flow batteries, which are not aged to the frequent charging and discharging, have a quick response and outstanding function during overload conditions. In addition to leveling load, the battery is advantageous for secondary control in the power system and maintenance of power quality of distributes power resources. The Bacterial Foraging Optimization (BFO) algorithm is use to optimize the parameters of the cost functions for designing the integral controller. Compliance with North American Electric Reliability Council (NERC) standards for Load Frequency Control has also been establishes in this work. Simulation studies reveal that the RFB coordinate with IPFC units has greater potential for improving the system dynamic performance. (C) 2012 Elsevier B.V. All rights reserved.

关键词： Bacterial foraging optimization Redox flow batteries interline power flow controller Load-frequency control Control performance standards

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Artificial Intelligence-Based power System Stabilizers for Frequency Stability Enhancement in Multi-Machine power Systems

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IEEE ACCESS 2021年 9卷 166095-166116页

作者： Sabo, Aliyu Wahab, Noor Izzri Abdul Othman, Mohammad Lutfi Jaffar, Mai Zurwatul Ahlam Binti Mohd Acikgoz, Hakan Nafisi, Hamed Shahinzadeh, Hossein Univ Putra Malaysia UPM Dept Elect & Elect Engn Adv Lightning Power & Energy Res ALPER Serdang 43400 Selangor Malaysia Univ Putra Malaysia UPM Fac Sci Dept Math Serdang 43400 Selangor Malaysia Gaziantep Islam Sci & Technol Univ Fac Engn & Nat Sci Dept Elect Elect Engn TR-27010 Gaziantep Turkey Technol Univ Dublin TU Dublin Sch Elect & Elect Engn Dublin D07 EWV4 7 Ireland Amirkabir Univ Technol Tehran Polytech Dept Elect Engn Tehran *** Iran

Low frequency oscillations (LFOs) occur in a system of interconnected generators connected by weak interconnection. A power system stabilizer (PSS) is commonly used to improve the capacity of the power system dampening. Under a variety of operating conditions, traditional PSSs fail to deliver superior damping. To address this issue, a Farmland Fertility Algorithm (FFA-PSSs controller) was used to solve an optimization problem for optimal design of PSSs system parameters, and its performance efficiency was compared to GA and PSO-based PSSs controllers. In addition to PSS, flexible current transmission (FACTS) devices are widely used. PSSs controllers and FACTS devices are frequently constructed in tandem to improve the dampening efficiency of the system. In this study, an interline power flow controller (IPFC) FACTS device will be added to the PSSs controller to improve the power system's oscillatory stability. PSSs optimal design and supplemental controller of power fluctuations for IPFC were conducted out on WSCC multi-machine test systems using a system linear model. Using time-domain simulations and quantitative analysis, the proposed IPFC model was compared to the FFA-PSSs controller in terms of performance and efficiency. The main disadvantage of this technique is the difficulty in designing a dynamic IPFC model in test systems, as well as the burden of IPFC coordinated PSSs optimization. In both PSSs design using FFA method and FFA-optimized PSS with IPFC cases, rise in the computational and simulation costs was found unavoidable. To compensate for these flaws and obtain the research contribution, this paper proposes a Neuro-Fuzzy controller (NFC) developed as a damping controller that can take the place of the two controllers (research objectives three). The application of the NFC substitute the computational and simulation cost involved in designing multi-machine PSS and IPFC-FACTS systems simultaneously. With the availability of NFC in SIMULINK, a dynamic m

关键词： power system stability Oscillators Damping Fluctuations Generators Optimization Load flow Lowfrequency oscillations power systemstabilizers farmland fertility algorithm interline power flow controller neuro-fuzzy controller

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Stability analysis and efficiency improvement of IPFC using latest PR controller

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ARCHIVES OF ELECTRICAL ENGINEERING 2021年第3期70卷 615-630页

作者： Gurijalao, Sridhar Babu Kishoreo, D. Ravi Nittalao, Ramchandra Godalao, Rohith Reddy Koneru Lakshmaiah Educ Fdn Dept Elect & Elect Engn Vaddeswaram AP India St Martins Engn Coll Dhulapally Dept Elect & Elect Secunderabad Telangana India Riga Tech Univ Inst Ind Elect & Elect Engn Fac Power & Elect Engn Riga Latvia

The deviation from the ideal waveform causes disturbances and failure of end-user load equipment. power traveling a long distance from the generation plant to the end-user leads to deterioration of its quality, and the intensive utilization of power leads to serious issues in the grid resulting in power quality problems. To make the system effective and able to meet modern requirements, flexible AC transmission system (FACTS) devices should be installed into the grid. The interline power flow controller (IPFC) is the latest FACTS device, which compensates for both active and reactive power among multi-line systems. The converters used in the IPFC are crucial as they can be adjusted to regulate the power flow among the lines. This paper proposes a cascaded IPFC with hysteresis and proportional resonant voltage controllers. Some main drawbacks of controllers like steady-state errors and reference tracking of converters can be easily achieved by the PR controller, which makes the system efficient and can be used for a wide range of grid applications. Hysteresis and PR controllers are explained in detail in the following sections. A comparative analysis is carried out among control algorithms to choose the suitable controller which maintains stability in the system.

关键词： control algorithms FACTS devices interline power flow controller multilevel inverter

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Frequency and Voltage Stabilization of Multiarea Hybrid power System by Considering the Impact of Communication Time Delay

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ELECTRIC power COMPONENTS AND SYSTEMS 2023年

作者： Gulzar, Muhammad Majid Irfan, Rasmia Shahid, Kamal Raza, Muhammad Taskeen Javed, Imran King Fahd Univ Petr & Minerals Dept Control & Instrumentat Engn Dhahran Saudi Arabia King Fahd Univ Petr & Minerals IRC Renewable Energy & Power Syst IRC REPS Dhahran Saudi Arabia Univ Punjab Inst Elect Elect & Comp Engn Lahore Pakistan Lahore Coll Women Univ Elect Engn Dept Lahore Pakistan Univ Engn & Technol Dept Elect Engn & Technol Lahore Pakistan

The integration of renewable energy sources (RES) with conventional sources plays a vital role in global energy systems. With the integration of RES, frequency and voltage variations are the major issues, which degrade system performance. In this study, an optimal controller is designed to mitigate these frequency and voltage variations by considering the effect of communication time delays in the multisource two-area power system. Area-1 comprises conventional generation units (i.e., thermal, hydro, and gas) whereas area-2 comprises wind, solar, and diesel power plants. Frequency oscillations are mitigated by a load frequency control loop and variations in terminal voltage are regulated by an automatic voltage regulation loop. To enhance the system response, redox flow batteries, and interline power flow controllers are integrated in the system. Moreover, physical constraints, i.e., generation rate constraint is accounted in reheat thermal and hydropower plants. The proposed sine cosine algorithm tuned Proportional Integral Derivative controller ensures that variations of frequencies, terminal voltages, and exchange of tie-line power will remain within tolerance limits. The system response on random loading is evaluated and a comparison is done with state-of-the-art controllers. As a result, the proposed controller provides better performance by minimizing the fluctuations of frequency and voltages.

关键词： load frequency control automatic voltage regulation communication time delay redox flow batteries interline power flow controller sine cosine algorithm

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Modeling of flexible AC transmission system devices and fuzzy controller for automatic generation control of electric vehicle-injected power system

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e-Prime - Advances in Electrical Engineering, Electronics and Energy 2024年 7卷

作者： Mohapatra, Ashok Kumar Mohapatra, Srikanta Sahu, Prakash Chandra Debdas, Subhra School of Electrical Engg. KIIT Deemed to be University Odisha Bhubaneswar India School of Electrical Science Indian Institute of Technology Odisha Bhubaneswar 752050 India

The automatic generation control (AGC) is a paradigm topic of interest that is continuously evolving for adequate power generation control in the power system. In this proposed study, a fuzzy adapted PID (FPID) controller is assigned for the AGC of the hybrid power system in various electrical risks and hazards. The hybrid power system includes traditional thermal and hydroelectric facilities along with gas and nuclear power plants. Two FACTS components, the superconducting magnetic energy storage (SMES) and the interline power flow controller (IPFC), have been included in to the system to improve stability of the system. The proposed FPID controller is developed to its full potential using the newly developed teaching learning-based optimization (TLBO) method. The TLBO technique's capability has been compared against a few common evolutionary strategies in order to demonstrate its superiority. It also shows how FPID controllers outperform traditional PID controllers. Investigations are also done on how IPFC and SMES might improve system stability performance. Owing to the outcome study, it is revealed that suggested TLBO-FPID, IPFC and SMES are most effective tool to advance the AGC mechanism. It is revealed from the outcomes that anticipated FPID controller reduces the settling time of area1 frequency (ΔF₁) by 135.72 %, 428.58 % and 471.42 % over TLBO;PID, DE;PID and PSO;PI respectively. Finally, the proposed mechanisms are discussed with employing in electric vehicle integrated three-area distributed energy source-based power network to justify the efficacy of the proposed approaches. © 2024 The Author(s)

关键词： Automatic generation control (AGC) Fuzzy controller interline power flow controller Objective function Superconducting magnetic energy storage(SMES) Teaching Learning Based Optimization algorithm (TLBO)

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Coordinated Design of PSS and IPFC Using FFA to Control Low Frequency Oscillations 19

Coordinated Design of PSS and IPFC Using FFA to Control Low ...

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19th IEEE Student Conference on Research and Development (SCOReD)

作者： Sabo, Aliyu Wahab, Noor Izzri Abdul Othman, Mohammad Lutfi Univ Putra Malaysia Dept Elect & Elect Engn Adv Lighting Power & Energy Res ALPER Serdang Malaysia

ISBN: (纸本)9781665401937

Grid damping stabilizers and FACTS devices can work together in real time to improve power system dynamic stability. The usefulness of an interline power flow controller (IPFC) and a power System Stabilizer (PSS) in real-time coordination to regulate low frequency oscillations (LFOs) in a Single Machine Infinite Bus (SMIB) power system is investigated in this study. The grid PSS is designed using a modern intelligence technique called Farmland Fertility Algorithm (FFA), whereas the IPFC in the SMIB test system is designed using the supplementary controller of power Oscillations Damping (POD). For the controller design, an eigenvalue objective function and a creation of close to zero control modes were devised. The test system was simulated for IPFC supplementary controller design and the FFA-PSS using nonlinear time-domain simulation in the MATLAB/SIMULINK domain. According to the simulation results, adding a supplementary controller to the IPFC increased LFO control and overall system dynamic stability.

关键词： power system stabilizer farmland fertility algorithm interline power flow controller low-frequency oscillations single machine infinite bus

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Impact of solid oxide FC-RFB and IPFC on a renewable multi-area power system using combined PI and FOPD controllers optimized by the African Vulture algorithm

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SCIENTIFIC REPORTS 2025年第1期15卷 1-28页

作者： Saha, Arindita Bhaskar, Mahajan Sagar Elmorshedy, Mahmoud F. Almakhles, Dhafer J. Padmanaban, Sanjeevikumar Regent Educ & Res Fdn Grp Inst Dept Elect Engn Kolkata 700121 West Bengal India Prince Sultan Univ Coll Engn Renewable Energy Lab Riyadh Saudi Arabia Tanta Univ Fac Engn Elect Power & Machines Engn Dept Tanta 31733 Egypt Univ South Eastern Norway Dept Elect Engn IT & Cybernet Porsgrunn Norway

The expanding complexity of modern energy systems and the increasing integration of renewable sources make stable load frequency control (LFC) in interconnected power networks a continuing issue. Traditional controllers, such as proportional-integral (PI), proportional-integral-derivative (PID), and other subordinate control methods, frequently fail to control frequency adequately, especially in multi-source generating systems. Furthermore, standard optimization techniques may exhibit sluggish convergence and inefficient tuning, limiting their usefulness in real-time applications. To address these problems, this study suggest an enhanced LFC framework for a three-area power system that includes thermal-biodiesel (Area-1), thermal (Area-2), and hydro-thermal (Area-3) components. The African Vulture Optimization Algorithm (AVOA) is used to improve a novel PI(FOPD) controller that combines integer-order PI with fractional-order Proportional Derivative (FOPD). According to a comparative investigation, the AVOA-augmented PI(FOPD) controller outperforms conventional I, PI, and PID controllers in terms of transient responsiveness, stability, and convergence. Additionally, AVOA outperforms optimization approaches such as Cuckoo Search, Particle Swarm Optimization, and the Firefly Algorithm. The integration of a Dish-Stirling solar thermal system, a Flexible AC Transmission System (FACTS) device, and an energy storage component improves system robustness. The results show that the AVOA-optimized PI(FOPD) controller greatly enhances LFC performance, making it a promising alternative for current power networks.

关键词： Automatic generation control Biodiesel interline power flow controller Redox flow battery Solid oxide fuel cell African Vulture optimization algorithm Cascaded controller

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Impact of renewables and FACT device on deregulated thermal system having sine cosine algorithm optimised fractional order cascade controller

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IET RENEWABLE power GENERATION 2019年第9期13卷 1420-1430页

作者： Tasnin, Washima Saikia, Lalit Chandra Natl Inst Technol Silchar Elect Engn Dept Silchar Assam India

This study highlights the operation under the bilateral scenario of the deregulated environment, considering a three unequal area thermal system, wherein several renewable sources namely geothermal plant (GTP), solar thermal and wind had been integrated to analyse their effect both through dynamic responses as well as analytically from the aspect of GENCO participation, related to the price based environment. Later a flexible alternating current transmission (FACT) device, interline power flow controller (IPFC) is being connected to the above-considered system at different positions. Various observations are made for checking if there is an optimal location for the placement of IPFC and it reflects that IPFC placed between the tie lines of area 1 and area 3 shall economically be the most feasible option. The considered thermal systems are provided with suitable generation rate constraints. In this study, an initiative has been taken to use a new combination of fractional order (FO) cascade controller, FO integral-FO proportional-derivative as secondary controller and its capability is being checked with the traditional controllers revealing it to outperform the others. The gains and other required parameters of all the secondary controllers are optimised by means of the stochastic sine cosine algorithm.

关键词： control system synthesis load flow control power generation economics thermal power stations power transmission control flexible AC transmission systems power markets cascade control optimisation solar power stations geothermal power stations wind power plants FACT device deregulated thermal system bilateral scenario deregulated environment dynamic responses GENCO participation price based environment flexible alternating current transmission device interline power flow controller IPFC FO integral-FO proportional-derivative secondary controller traditional controllers stochastic sine cosine algorithm wind plant thermal systems generation rate constraints optimised fractional order cascade controller unequal area thermal system renewable sources geothermal plant solar thermal plant

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A review modeling of optimal location and sizing integrated M-FACTS with wind farm and fuel cell

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JOURNAL OF CLEANER PRODUCTION 2020年 268卷

作者： Han, Yun Lv, Genlai Mokaramian, Elham Weifang Univ Sci & Technol Facil Hort Lab Univ Shandong Shouguang 262700 Shandong Peoples R China Univ Mohaghegh Ardabili Dept Elect Engn Ardebil Iran

In recent years, due to the reduction of non-renewable resources and increasing environmental pollution, exploiting of renewable energy sources is a good solution. Wind turbines and fuel cells are appropriate sources of renewable energy. On the other hand, FACTS devices are used to maximize the power injection capability to supply electricity demand and minimizing voltage deviation, power losses and operational cost of power system. Generalized Unified power flow controller (GUPFC) and interline power flow controller (IPFC) are two kinds of the best FACTS devices. GUPFC can adjust the voltage and the power flow in the connected transmission lines synchronically. IPFC is capable of minimizing voltage drops and reactive power of line, enhancing the system stability against the dynamic disturbance, and load ability of the system. In this paper, with the aim of minimizing the cost function and improving the performance of system wind farm and fuel cell are integrated with power system in the presence of GUPFC and IPFC via power injection model. Then, using a new algorithm integrated with the Newton-Raphson method, the best place for installing IPFC and GUPFC is funded. This algorithm is improved squirrel search which is inspired by nature. On the other hand, the optimum range of parameter (value and angle of injected voltage) is determined with the aim of achieving the best performance of system. Ultimately, the proposed method has been applied in IEEE 57 Bus system in the presence of wind turbine, fuell cell and DG to test the effect of M-FACTS. The result confirms that the new method improved voltage profile, minimized the operational cost and power losses of system. Final, it is concluded that the performance of GUPFC is better than the IPPFC. (C) 2020 Elsevier Ltd. All rights reserved.

关键词： Unified power flow controller interline power flow controller Newton-raphson method power injection model Squirrel search algorithm Wind farm Fuel cell

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