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Journal articles on the topic 'Continuous Power Flow (CPF)'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Bislimi, Agron. "Illustration of the voltage stability by using the slope of the tangent vector component." International journal of electrical and computer engineering systems 14, no. 6 (2023): 725–32. http://dx.doi.org/10.32985/ijeces.14.6.12.

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This Paper is dedicated to the analysis of the evolution of the tangent vector during the Continuous Power Flow (CPF) iterations. The flow of the tangent slope (measured in degrees) is shown through the coefficient of lambda tangent vector component and the maximum voltage tangent vector component. A 17 Node Network was used for the purposes of this Paper. The system was modelled in MATLAB software. The admittance matrix of the node voltage equations was formulated and the functions in MATLAB were developed for the systematic formation of the node admittance matrix. Equations for the calculate

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2

Hakimzadeh, Mojtaba, Reza Sedaghati, and Masoud Parhoodeh. "Using Hybrid Power Flow Controller (HPFC) to Improve Performance of Old and Existing Compensators in Power System." Advanced Materials Research 622-623 (December 2012): 1048–55. http://dx.doi.org/10.4028/www.scientific.net/amr.622-623.1048.

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In this paper, a hybrid topology of FACTS devices has been investigated to improve stability features of static voltage. The primary assumption is a power system which has been located under SVC parallel compensation. HPFC forms a hybrid controller using IPFC series converters as a hybrid with existing parallel and passive compensator (SVC) in power system. Thus, simultaneous and independent control of active power flow can be reached through transmission lines and the exchanged reactive power values towards sending and receiving line. Using a hybrid structure makes the use of convertors to im

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3

Alamelu, S., S. Baskar, C. K. Babulal, and S. Jeyadevi. "Static Loadabilty Assessment Using Covariance Matrix Adapted Evolution Strategy." Advanced Materials Research 651 (January 2013): 864–69. http://dx.doi.org/10.4028/www.scientific.net/amr.651.864.

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This paper discusses application of Covariance Matrix Adapted Evolution Strategy (CMAES) algorithm for maximizing loadability margin of power system. CMAES is a class of continuous evolutionary algorithm that generates new population members by sampling from a probability distribution that is constructed during the optimization process. IEEE 14 bus , 30 bus and 118 bus systems are considered for simulation purpose. For comparison of the results, primal dual interior point (PDIP), continuation power flow (CPF), Particle swarm optimization algorithms are considered. Statistical performance of CM

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4

Alnasseir, Jamal. "Improving performance of transmission networks using facts through continuation power flow method." Facta universitatis - series: Electronics and Energetics 35, no. 3 (2022): 437–54. http://dx.doi.org/10.2298/fuee2203437a.

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Over the past 50 years, modern electrical systems have become more complex, as they overrun the geographical boundaries of neighboring countries. The problem is that the power system faces many challenges, because it is exposed to difficult operating conditions. The phenomenon of voltage instability is the most frequent phenomenon, and this can lead to the collapse of the power system. To avoid power outages in the system (especially in blackout situations), the power system must be analyzed in order to maintain voltage stability in the expected difficult operating conditions. The main objecti

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A N, Venkateswarlu, Tulasi Ram, S. S, and Sangameswara Raju.P. "Alleviation of VAr Impact on Critical Loading Margin with Redispatch in Deregulated Power Systems." International Journal of Engineering & Technology 7, no. 1.8 (2018): 130. http://dx.doi.org/10.14419/ijet.v7i1.8.11534.

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The stability management under deregulated environment has become typical task to the system due to random nature of load pattern and generation schedules. In addition, the regular uncertainties in system operation like line outage, generator outage or change in loading level are also causing to change in stability as well as security margins significantly. In order to manage transmission system security, the system operator can go for redispatch as a short term solution. In this article, an attempt is made to clear reactive power loading (VAr) impact on voltage instability margin or Critical

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Qiu, Ge Fei, and Hong Chun Shu. "Alleviate Stressful Voltage Condition of Power System by Means of Adjusting the Generation Mode Considering Energy Saving." Advanced Materials Research 383-390 (November 2011): 230–36. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.230.

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In this paper, a new method based on modal analysis and CPF method devoting to designing of generation adjusting plan which can alleviate stressful voltage condition considering energy saving is proposed. The voltage stability condition has relation with the generation and load distribution modes, usually only adjustment of load distribution modes has been noticed when there is a need to alleviate stressful voltage condition. Noticing that properly modification of the generation mode under stressful voltage stability condition can also reduce the power loss of power system and enlarge the volt

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Mao, Wen Bo, Ke Wang, and Jian Tao Liu. "A Model of Continuous Optimized Power Flow with DR." Advanced Materials Research 805-806 (September 2013): 452–57. http://dx.doi.org/10.4028/www.scientific.net/amr.805-806.452.

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A model of continuous optimized power flow (COPF) is proposed, concluding demand response (DR). According to different implementation mechanisms, a series of DR models are built, such as: time of use (TOU), real time price (RTP), critical peak price (CPP), and interruptible load (IL). The influences of these kinds of DR on power system are analyzed, including peak load reduction, cost reduction, and reservation optimization. The results show that: DR can cut the cost, reduce the peak load, and promote the reservation optimization.

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Sharad, Chandra Rajpoot*1 &. Prashant Singh Rajpoot2. "FAVORABLE TURF OF SVC & TCSC FOR ATC ENRICHMENT IN A DECONTROL ENVIRONMENT." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 11 (2017): 422–33. https://doi.org/10.5281/zenodo.1066200.

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Improving of ATC is an important issue in the current de-regulated environment of power systems. The Available Transfer Capability (ATC) of a transmission network is the unutilized transfer capabilities of a transmission network for the transfer of power for further commercial activity, over and above already committed usage. Power transactions between a specific seller bus/area and a buyer bus/area can be committed only when sufficient ATC is available. Transmission system operators (TSOs) are encouraged to use the existing facilities more effectively to enhance the ATC margin. ATC can be lim

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9

Bislimi, Agron. "Comprehensive Analysis of Power System." International journal of electrical and computer engineering systems 15, no. 1 (2024): 105–12. http://dx.doi.org/10.32985/ijeces.15.1.11.

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The contemporary power landscape is marked by escalating complexity driven by surging energy demands, the integration of renewable sources, and the imperative for heightened system performance. In response to these challenges, this paper presents a thorough investigation. Firstly, the load factor Lambda (λ) is expounded upon, emphasizing its significant impact on system stability due to load characteristics. Static load models are employed for voltage stability studies, providing insights into resource allocation and optimization by comparing actual energy consumption to the maximum potential

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10

Gao, Yuan, Sheng Li, and Xiangyu Yan. "Assessing Voltage Stability in Distribution Networks: A Methodology Considering Correlation among Stochastic Variables." Applied Sciences 14, no. 15 (2024): 6455. http://dx.doi.org/10.3390/app14156455.

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Distributed photovoltaic (PV) output exhibits strong stochasticity and weak adjustability. After being integrated with the network, its interaction with stochastic loads increases the difficulty of assessing the distribution network’s static voltage stability (SVS). In response to this issue, this article presents a probabilistic assessment method for SVS in a distribution network with distributed PV that considers the bilateral uncertainties and correlations on the source and load sides. The probabilistic models for the uncertain variables are established, with the correlation between stochas

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11

Langri, Dharminder S., and Ulas Sunar. "Non-Invasive Continuous Optical Monitoring of Cerebral Blood Flow after Traumatic Brain Injury in Mice Using Fiber Camera-Based Speckle Contrast Optical Spectroscopy." Brain Sciences 13, no. 10 (2023): 1365. http://dx.doi.org/10.3390/brainsci13101365.

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Neurocritical care focuses on monitoring cerebral blood flow (CBF) to prevent secondary brain injuries before damage becomes irreversible. Thus, there is a critical unmet need for continuous neuromonitoring methods to quantify CBF within the vulnerable cortex continuously and non-invasively. Animal models and imaging biomarkers can provide valuable insights into the mechanisms and kinetics of head injury, as well as insights for potential treatment strategies. For this purpose, we implemented an optical technique for continuous monitoring of blood flow changes after a closed head injury in a m

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Sheidaei, Behnaz, and Mohammad A. Behnajady. "Mathematical Kinetic Modelling and Representing Design Equation for a Packed Photoreactor with Immobilised TiO2-P25 Nanoparticles on Glass Beads in the Removal of C.I. Acid Orange 7." Chemical and Process Engineering 36, no. 2 (2015): 125–33. http://dx.doi.org/10.1515/cpe-2015-0010.

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In this work, a design equation was presented for a batch-recirculated photoreactor composed of a packed bed reactor (PBR) with immobilised TiO2-P25 nanoparticle thin films on glass beads, and a continuous-flow stirred tank (CFST). The photoreactor was studied in order to remove C.I. Acid Orange 7 (AO7), a monoazo anionic dye from textile industry, by means of UV/TiO2 process. The effect of different operational parameters such as the initial concentration of contaminant, the volume of solution in CFST, the volumetric flow rate of liquid, and the power of light source in the removal efficiency

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13

Nishimura, Naoko, Ken-ichi Iwasaki, Yojiro Ogawa, and Ken Aoki. "Decreased steady-state cerebral blood flow velocity and altered dynamic cerebral autoregulation during 5-h sustained 15% O2 hypoxia." Journal of Applied Physiology 108, no. 5 (2010): 1154–61. http://dx.doi.org/10.1152/japplphysiol.00656.2009.

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Effects of hypoxia on cerebral circulation are important for occupational, high-altitude, and aviation medicine. Increased risk of fainting might be attributable to altered cerebral circulation by hypoxia. Dynamic cerebral autoregulation is reportedly impaired immediately by mild hypoxia. However, continuous exposure to hypoxia causes hyperventilation, resulting in hypocapnia. This hypocapnia is hypothesized to restore impaired dynamic cerebral autoregulation with reduced steady-state cerebral blood flow (CBF). However, no studies have examined hourly changes in alterations of dynamic cerebral

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14

Huang, Ju, and Zhu. "An Asymptotic Numerical Continuation Power Flow to Cope with Non-Smooth Issue." Energies 12, no. 18 (2019): 3493. http://dx.doi.org/10.3390/en12183493.

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Continuation power flow (CPF) calculation is very important for analyzing voltage stability of power system. CPF calculation needs to deal with non-smooth constraints such as the generator buses reactive power limits. It is still a technical challenge to determine the step size while dealing with above non-smooth constraints in CPF calculation. In this paper, an asymptotic numerical method (ANM) based on Fischer‐Burmeister (FB) function, is proposed to calculate CPF. We first used complementarity constraints to cope with non-smooth issues and introduced the FB function to formulate the complem

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15

Zhang, Qian, Fei Tang, Junru Xu, Ting Zhao, and Jian Yang. "Matpower CPF Program Improvement and Steady-State Voltage Stability Analysis." Applied Mechanics and Materials 740 (March 2015): 424–28. http://dx.doi.org/10.4028/www.scientific.net/amm.740.424.

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In steady-state voltage stability analysis, Continuation power flow (CPF) method is widely used for it can track power flow solution at the critical voltage point. The existing matpower CPF program can only simulate PV curve of a single bus when load increases at one certain bus. In this paper, original CPF program will be modified to be more flexible and in line with the actual situation. Several indices will be proposed to discuss how to determine the first crash bus (namely the system vulnerabilities) when load increases at multiple buses. Simulation results of a regional power grid in nort

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16

Arief, Ardiaty, and Muhammad Bachtiar Nappu. "Novel Hybrid Modified Modal Analysis and Continuation Power Flow Method for Unity Power Factor DER Placement." Energies 16, no. 4 (2023): 1698. http://dx.doi.org/10.3390/en16041698.

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Distributed energy resource (DER) has become an effective attempt in promoting use of renewable energy resources for electricity generation. The core intention of this study is to expand an approach for optimally placing several DER units to attain the most stable performance of the system and the greatest power losses decrease. The recommended technique is established on two analytical methods for analyzing voltage stability: the new modified modal analysis (MMA) and the continuation power flow (CPF) or MMA–CPF methods. The MMA evaluates voltage stability by considering incremental connection

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17

Umayahara, Yasutaka, Zu Soh, Kiyokazu Sekikawa, Toshihiro Kawae, Akira Otsuka, and Toshio Tsuji. "Clinical Significance of Cough Peak Flow and Its Non-Contact Measurement via Cough Sounds: A Narrative Review." Applied Sciences 10, no. 8 (2020): 2782. http://dx.doi.org/10.3390/app10082782.

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Coughing is the primary defence mechanism against foreign bodies in the central airways and can quantitatively be assessed by cough peak flow (CPF). We conducted a narrative review of the literature on CPF, which is most commonly used for evaluating cough strength. This review regards the method for measurement of CPF, the cough-related factors influencing CPF, the clinical significance of CPF evaluation, and a novel cough strength prediction method using cough sounds. Furthermore, this review presents various cutoff thresholds that predict extubation failure in patients on mechanical ventilat

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18

Yan, Wei, Chong Ding, Zhouyang Ren, and Wei-Jen Lee. "A Continuation Power Flow Model of Multi-Area AC/DC Interconnected Bulk Systems Incorporating Voltage Source Converter-Based Multi-Terminal DC Networks and Its Decoupling Algorithm." Energies 12, no. 4 (2019): 733. http://dx.doi.org/10.3390/en12040733.

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Existing continuation power flow (CPF) models mainly focus on the regional independent systems, which are not suitable for multi-area AC/DC interconnected systems because the market trading behaviors and security control for power allocation of tie-lines are ignored. This study presents a novel CPF model and its decoupling algorithm for multi-area AC/DC interconnected systems incorporating a voltage source converter (VSC)-based multi-terminal direct current (MTDC) network. This CPF model includes the following unique features: (1) In view of the bilateral power trading contracts among regional

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19

Kobibi, Youcef Islam Djilani, Mohamed Abdeldjalil Djehaf, Mohamed Khatir, and Mohamed Ouadafraksou. "Continuation Power Flow Analysis of Power System Voltage Stability with Unified Power Flow Controller." Journal of Intelligent Systems and Control 1, no. 1 (2022): 60–67. http://dx.doi.org/10.56578/jisc010106.

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The rising power demand has forced power systems all over the world to operate very close to their stability limits. When power systems are overloaded, faulty, or in lack of reactive power, voltage collapses would ensue. The capacity of a power system to keep the voltage of every bus constant under disturbances is called voltage stability. This dynamic phenomenon hinges on the load features. It is commonly known that flexible AC transmission systems (FACTS) can improve voltage stability. This paper puts forward a load flow model with the unified power flow controller (UPFC), and relies on the

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20

Yawata, Akiko, Atsuhiro Tsubaki, Haruka Yawata, et al. "Voluntary cough intensity and its influencing factors differ by sex in community-dwelling adults." Therapeutic Advances in Respiratory Disease 11, no. 12 (2017): 427–33. http://dx.doi.org/10.1177/1753465817741607.

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Background: Cough peak flow (CPF) is widely used for measuring voluntary cough intensity. However, the respective factors that affect CPF are not known. The aim of this study was to determine the factors affecting CPF by sex in community-dwelling adults. Method: We recruited participants using posters exhibited at a public gymnasium. Participation was voluntary, and all participants provided informed consent. Nonsmoking community residents (102 males, 49.6 ± 20.2 years of age; 101 females, 51.4 ± 18.4 years of age) participated in this study. The main outcome measures were sex differences in C

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21

Ji, Gaofan, Yunhan He, Chuanxiang Li, Li Fan, Haibo Wang, and Yantong Zhu. "A Novel Multi-LiDAR-Based Point Cloud Stitching Method Based on a Constrained Particle Filter." Electronics 13, no. 9 (2024): 1777. http://dx.doi.org/10.3390/electronics13091777.

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In coal-fired power plants, coal piles serve as the fundamental management units. Acquiring point clouds of coal piles facilitates the convenient measurement of daily coal consumption and combustion efficiency. When using servo motors to drive Light Detection and Ranging (LiDAR) scanning of large-scale coal piles, the motors are subject to rotational errors due to gravitational effects. As a result, the acquired point clouds often contain significant noise. To address this issue, we proposes a Rapid Point Cloud Stitching–Constrained Particle Filter (RPCS-CPF) method. By introducing random nois

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22

Kim, Haelee, Hyeon Woo, Yeunggurl Yoon, et al. "An Enhanced Continuation Power Flow Method Using Hybrid Parameterization." Sustainability 16, no. 17 (2024): 7595. http://dx.doi.org/10.3390/su16177595.

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The rapid integration of renewable energy sources and the increasing complexity of modern power systems urge the development of advanced methods for ensuring power system stability. This paper presents a novel continuation power flow (CPF) method that combines two well-known parameterization techniques: natural parameterization and arc-length parameterization. The proposed hybrid approach significantly improves computational efficiency, reducing processing time by 32.76% compared to conventional methods while maintaining high accuracy. The method enables faster and more reliable stability asse

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Fitschen, P. J., B. M. Kistler, J. H. Jeong, et al. "Perceptual effects and efficacy of intermittent or continuous blood flow restriction resistance training." Clinical Physiology and Functional Imaging 34, no. 5 (2013): 356–63. http://dx.doi.org/10.1111/cpf.12100.

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Yadlapati, Avinash, and K. Hari Kishore. "Low power synthesis for asynchronous FIFO using unified power format (UPF)." International Journal of Engineering & Technology 7, no. 2.8 (2018): 7. http://dx.doi.org/10.14419/ijet.v7i2.8.10315.

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Low power Design is the challenge for the current SoC Designers. With the growing complexity of the chips and the shrinking technology, power consumption in ASIC’s has become a major challenge for the ASIC Engineer. The low power challenge is at every level of the ASIC Design flow. The low power techniques are applies at the Micro architecture level, RTL Design Level, Functional Verification level, Logic Synthesis level, Design for Test level, and Physical Design level. Nowadays, with the complexity gradually increasing at the SoC level, some of the EDA companies like Synopsys and Cadence are

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Duan, Jun, Lintong Zhou, Meiling Xiao, Jinhua Liu, and Xiangmei Yang. "Semiquantitative Cough Strength Score for Predicting Reintubation After Planned Extubation." American Journal of Critical Care 24, no. 6 (2015): e86-e90. http://dx.doi.org/10.4037/ajcc2015172.

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Background Semiquantitative cough strength score (SCSS, graded 0–5) and cough peak flow (CPF) have been used to predict extubation outcome in patients in whom extubation is planned; however, the correlation of the 2 assessments is unclear. Methods In the intensive care unit of a university-affiliated hospital, 186 patients who were ready for extubation after a successful spontaneous breathing trial were enrolled in the study. Both SCSS and CPF were assessed before extubation. Reintubation was recorded 72 hours after extubation. Results Reintubation rate was 15.1% within 72 hours after planned

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Gil, Ana L. S., Gabriel R. Neto, Maria S. C. Sousa, et al. "Effect of strength training with blood flow restriction on muscle power and submaximal strength in eumenorrheic women." Clinical Physiology and Functional Imaging 37, no. 2 (2015): 221–28. http://dx.doi.org/10.1111/cpf.12291.

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Britton, Joshua, Sudipta Majumdar, and Gregory A. Weiss. "Continuous flow biocatalysis." Chemical Society Reviews 47, no. 15 (2018): 5891–918. http://dx.doi.org/10.1039/c7cs00906b.

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Fu, Hong Jun, Jian Hua Sun, Jing Gang Wang, and Yang Yu Hu. "The Static Voltage Stability Limit Calculation of AC/DC Hybrid Power System Based on Improved Continuation Power Flow Algorithm." Applied Mechanics and Materials 347-350 (August 2013): 1450–54. http://dx.doi.org/10.4028/www.scientific.net/amm.347-350.1450.

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With the HVDC system interconnected to power grid, the voltage stability problem of power grid has become increasingly prominent. This paper establishes the mathematical model of AC/DC hybrid power system and proposed an improved Continuation Power Flow (CPF) algorithm to calculate the static voltage stability limit of AC/DC hybrid system, the characteristics of this algorithm are as following: PQ decoupled power flow algorithm is used; Lagrange quadric interpolation is used in the process of predictor and step control; local parameter method is used in the correction. The iterations of AC/DC

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Oum, El Fadhel Loubeba Bekri, Chehri Abdellah, Djamah Tounsia, and Karim Fellah Mohamed. "SVC device optimal location for voltage stability enhancement based on a combined particle swarm optimization-continuation power flow technique." TELKOMNIKA Telecommunication, Computing, Electronics and Control 18, no. 4 (2020): 2101–11. https://doi.org/10.12928/TELKOMNIKA.v18i4.13073.

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The increased power system loading combined with the worldwide power industry deregulation requires more reliable and efficient control of the power flow and network stability. Flexible AC transmission systems (FACTS) devices give new opportunities for controlling power and enhancing the usable capacity of the existing transmission lines. This paper presents a combined application of the particle swarm optimization (PSO) and the continuation power flow (CPF) technique to determine the optimal placement of static var compensator (SVC) in order to achieve the static voltage stability margin. The

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Asmaa, sobhy sabik, Saeed Osman EL, and Ebrahim El sayed Mohamed. "Improvement Congestion Management in Deregulated Power System Considering Voltage Stability and Loss Minimization." International Journal of Engineering and Advanced Technology (IJEAT) 9, no. 5 (2020): 263–69. https://doi.org/10.35940/ijeat.E9467.069520.

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First of the practical defiance's in unsystematized electrical networks is Congestion management. Two manners of percussions used in Congestion management are frill manners and cost free manners. In this paper work congestion is released by using cost free manners seeing (Flexible AC Transmission Systems) FACTS controller like SVC (Static Var compensator), STATCOM, TCSC (Thyristor controlled series Compensator), and SSSC (Static Synchronous Series Compensators) devices. Manifold-objective functions are presumed for congestion management. Small signal stability, voltage profile, and Real po

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K. Abdulla, Melat, and Lokman H. Hassan. "Optimum Location of Spvg to Enhance Voltage Stability Using Static Techniques." Journal Of Duhok University 23, no. 2 (2020): 49–58. http://dx.doi.org/10.26682/sjuod.2020.23.2.6.

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Solar Photovoltaic Generators (SPVGs) play a great and vital role in providing clean and enough energy to meet power loads. However, SPVGs integration on power systems increase power grid problems. It will lead to different problems including disturbance of the grid, instability of the voltage and swings of the power. The impact of SPVG on the voltage stability of the system is studied in this paper. The best location of SPVG is obtained using three static techniques. Power flow and the Q-V curve techniques are used to identify the weakest buses and test the stability of the system under nomin

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Milano, F. "Continuous Newton's Method for Power Flow Analysis." IEEE Transactions on Power Systems 24, no. 1 (2009): 50–57. http://dx.doi.org/10.1109/tpwrs.2008.2004820.

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L. Bekri, O., and F. Mekri. "Improvement of large power system with facts devices placement to maxim-IZE the system load ability." International Journal of Engineering & Technology 7, no. 2.28 (2018): 381. http://dx.doi.org/10.14419/ijet.v7i2.28.13215.

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Voltage instabilities and/or collapses have been recognized as one of the major causes of power system blackouts. The main objective of this paper is to provide some solutions to prevent large power systems from voltage collapse. The FACTS (Flexible AC Transmission Sys-tems) devices placement gives new opportunities for enhancing voltage stability. The calculation of the loadability point is based on the con-tinuation power flow technique (CPF) to choosing the optimal placement of STATCOM (Static Synchronous Compensator) in order to improve voltage stability by increasing the loading parameter

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Majeed, Rashid Zaidan *1 Dr. Ali Mohammed Kathim Al-zohuari2 Saif Tahseen Hussain3 Ghanim Thiab Hasan4 Saber Izadpanah Toos5. "A COMPREHENSIVE STUDY ON VOLTAGE STABILITY MARGIN IMPROVEMENT IN POWER SYSTEM." Global Journal of Engineering Science and Research Management 8, no. 5 (2021): 1–15. https://doi.org/10.5281/zenodo.4764469.

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In a power system, the excessive voltage drop in the buses due to increasing power demand leads to voltage instability consequent voltage collapse. Hence the voltage stability is a critical concern in a power system. In this paper, the application of tap-changing transformer, shunt capacitor, Static Var Compensator (SVC), Static Synchronous Compensator (STATCOM), Thyristor-Controlled Series Capacitor (TCSC), and Static Synchronous Series Compensator (SSSC) for improving voltage stability margin is studied. The Continuation Power Flow (CPF) method has been applied to the IEEE 14-bus test system

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Gupta, Santosh Kumar, Ashish Ranjan, Dhananjay Kumar, et al. "Assessment of photovoltaic generation penetration effect on the maximum loadability of the system." Engineering Research Express 6, no. 1 (2024): 015312. http://dx.doi.org/10.1088/2631-8695/ad2d4a.

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Abstract This paper proposed a method to investigate the effect of increasing PV penetration on the voltage stability of an IEEE 14-bus test system considering maximum PV penetration and system loadability limit. The critical bus of the test system has been decided based on nose curve analysis. The solar PV system is deployed with the most critical bus of the system. The effect of increasing PV penetration on the improvement in the loading capacity of various power system components like transmission lines, transmission line transformers, and generators is investigated over the adopted test sy

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Karami, Mahdi, Norman Mariun, Mohd Amran Mohd Radzi, and Gohar Varamini. "Intelligent stability margin improvement using series and shunt controllers." International Journal of Applied Power Engineering (IJAPE) 10, no. 4 (2021): 281. http://dx.doi.org/10.11591/ijape.v10.i4.pp281-290.

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Electric market always prefers to use full capacity of existing power system to control the costs. Flexible alternate current transmission system (FACTS) devices introduced by Electric Power Research Institute (EPRI) to increase the usable capacity of power system. Placement of FACTS controllers in power system is a critical issue to reach their maximum advantages. This article focused on the application of FACTS devices to increase the stability of power system using artificial intelligence. Five types of series and shunt FACTS controllers are considered in this study. Continuation power flow

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Mahdi, Karami, Mariun Norman, Amran Mohd Radzi Mohd, and Varamini Gohar. "Intelligent stability margin improvement using series and shunt controllers." International Journal of Applied Power Engineering 10, no. 4 (2021): 281~290. https://doi.org/10.5281/zenodo.7344547.

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Electric market always prefers to use full capacity of existing power system to control the costs. Flexible alternate current transmission system (FACTS) devices introduced by Electric Power Research Institute (EPRI) to increase the usable capacity of power system. Placement of FACTS controllers in power system is a critical issue to reach their maximum advantages. This article focused on the application of FACTS devices to increase the stability of power system using artificial intelligence. Five types of series and shunt FACTS controllers are considered in this study. Continuation power flow

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Uduak, J. Essien, Odion Joshua, and F. Chukwu Nelson. "Performance Evaluation of Optimally Placed SVC for Dynamic Stability of the Power System." INTERNATIONAL JOURNAL OF MULTIDISCIPLINARY RESEARCH AND ANALYSIS 06, no. 11 (2023): 5120–29. https://doi.org/10.5281/zenodo.10298327.

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Given the complexity of power systems, particularly in the deregulated power industry found in Nigeria, a consistent, safe, controllable, and high-quality power supply is required. The loss of the system's overall damping torque, which reduces the system's susceptibility to fluctuations and problems with dynamic stability, is one of the key downsides of network expansion. Flexible AC transmission systems (FACTS) controllers have been used to overcome problems with power system stability control. In order to improve dynamic stability, this study investigates how the generator's rotor angle, spe

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Imo, E. Nkan, E. Okpo Ekom, and B. Inyang Aniekan. "Enhancement of Power Systems Transient Stability with TCSC: A Case study of The Nigerian 330 kV, 48-Bus Network." INTERNATIONAL JOURNAL OF MULTIDISCIPLINARY RESEARCH AND ANALYSIS 06, no. 10 (2023): 4828–41. https://doi.org/10.5281/zenodo.10255002.

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A steady, safe, controllable, and high-quality power supply is necessary given the complexity of power systems, especially in the deregulated power sector seen in Nigeria. One of the main drawbacks of network expansion is the loss of the system's overall damping torque, which mitigates the system resulting to fluctuations and transient instability. Power system stability control difficulties have been addressed using flexible AC transmission systems (FACTS) controllers. This study examines the responses of the generator rotor angle, speed, Q-axis and D-axis voltage components behind transient

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Nkan, Imo, Patrick Obi, Hassan Natala, and Ogbonnaya Okoro. "Investigation of the Transfer Capability of the Nigerian 330 kV, 58-bus Power System Network using FACTS Devices." ELEKTRIKA- Journal of Electrical Engineering 22, no. 1 (2023): 53–62. http://dx.doi.org/10.11113/elektrika.v22n1.422.

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Over the years, the Nigerian power system is beset with lingering problems, which include severe power losses, as well as very low transfer capability of the transmission network to evacuate power from generating stations to the load at the distribution level. Presently, the Nigerian power industry is undergoing restructuring, especially in the generation and distribution systems. In view of the deregulation of electricity distribution and marketing, the traditional practices of the Nigerian power system are undergoing changes to address the identified problems in the existing power system. Sp

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Benachour, Souheyla, and Omar Bendjeghaba. "Wind Farm Voltage Drop Stabilisation Using SVC Inverter Based on FACTS." Algerian Journal of Renewable Energy and Sustainable Development 2, no. 01 (2020): 9–16. http://dx.doi.org/10.46657/ajresd.2020.2.1.2.

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The study focus on maintain of voltage factor in the near-unity network (1pu) using a Static Variables Compensator (SVC). In order to determine the effectiveness of this device to improve the stability of a power system with distributed genetartion in presence of wind farm based on MADA, the power flow is calculated without the existence of the SVC at first, and then when the SVC is integrated. This operation is performed to make a comparison and evaluate the role of the device in the system. However, in order to improve voltage stability as well as minimize power losses for practical power sy

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Hu, Yuan, Peng Wu, Lin Xing, et al. "Optimal power flow calculation of UPFC power system based on PSAT." Journal of Physics: Conference Series 2254, no. 1 (2022): 012019. http://dx.doi.org/10.1088/1742-6596/2254/1/012019.

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Abstract With the continuous improvement of the accuracy of power grid equipment components, the flexible control of unified power flow controller can better improve the stability of power grid. The continuous deepening of UPFC research meets the development needs of new power systems. Simulation analysis in PSAT environment can better study the power flow calculation of UPFC. In this paper, an improved power injection model is proposed for power flow calculation, and the optimal power flow is solved by the stability of power system and the economy of power market. The ieee9 node system is mod

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BISLIMI, Agron. "Continuous Power Flow Analysis in the Trigonometric Circle." PRZEGLĄD ELEKTROTECHNICZNY 1, no. 9 (2024): 133–39. http://dx.doi.org/10.15199/48.2024.09.24.

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Milano, Federico. "Implicit Continuous Newton Method for Power Flow Analysis." IEEE Transactions on Power Systems 34, no. 4 (2019): 3309–11. http://dx.doi.org/10.1109/tpwrs.2019.2912485.

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Agustini, Ni Putu, I. Made Wartana, and Abraham Lomi. "Improvement of Static Voltage Stability of 16-Bus Bali System by Optimal Placement of SVC." International Journal of Smart Grid and Sustainable Energy Technologies 4, no. 1 (2021): 140–44. http://dx.doi.org/10.36040/ijsgset.v4i1.3902.

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In a power system, the reactive power imbalance is related to the stability of the static voltage because the injection of reactive power that the bus receives from the system determines the bus's capability in the system. Rapid increases in real and reactive power losses occur as the system approaches the voltage drop point or the maximum load point. It is necessary to support local and adequate reactive power to avoid system leading to be voltage collapse. This study analyzes the improvement of the margin of static voltage stability using one type of modern control equipment of shunt flexibl

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Eisa Osman, S. H., G. K. Irungu, and D. K. Murage. "Application of FVSI, Lmn and CPF Techniques for Proper Positioning of FACTS Devices and SCIG Wind Turbine Integrated to a Distributed Network for Voltage Stability Enhancement." Engineering, Technology & Applied Science Research 9, no. 5 (2019): 4824–29. http://dx.doi.org/10.48084/etasr.3101.

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Induction power generators are the most popular wind energy conversion systems (WECS) because they do not require synchronization units. However, they usually draw a huge quantity of reactive power during disturbances. Hence, incorporating wind power into power networks may cause voltage instability. This paper presents the usage of STATCOM and SSSC FACTS devices for voltage stability enhancement of a distribution network with a squirrel cage induction generator (SCIG) wind power turbine. The continuation power flow (CPF) approach is utilized as a tool to determine the most suitable position o

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Eisa, Osman Shaheer Hashim, George K. Irungu, and David K. Murage. "Application of FVSI, Lmn and CPF Techniques for Proper Positioning of FACTS Devices and SCIG Wind Turbine Integrated to a Distributed Network for Voltage Stability Enhancement." Engineering, Technology & Applied Science Research 9, no. 5 (2019): 4824–29. https://doi.org/10.5281/zenodo.3510318.

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Induction power generators are the most popular wind energy conversion systems (WECS) because they do not require synchronization units. However, they usually draw a huge quantity of reactive power during disturbances. Hence, incorporating wind power into power networks may cause voltage instability. This paper presents the usage of STATCOM and SSSC FACTS devices for voltage stability enhancement of a distribution network with a squirrel cage induction generator (SCIG) wind power turbine. The continuation power flow (CPF) approach is utilized as a tool to determine the most suitable position o

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I Gusti Agung Rai Yuda Wardana and I. Made Wartana. "Penggunaan Unified Power Flow Controller (UPFC) Untuk Meningkatkan Profil Tegangan Pada Sistem Kelistrikan 150 KV Bali." ALINIER: Journal of Artificial Intelligence & Applications 5, no. 1 (2024): 11–36. http://dx.doi.org/10.36040/alinier.v5i1.9414.

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Abstract—Sistem tenaga listrik pasti akan mengalami rugi-rugi sistem dan ketidakstabilan tegangan yang menyebabkan ketidakmampuan dalam mempertahankan tegangan yang diterima sehingga Daya Aktif (MW) dan Daya Reaktif (MVar) yang dihubungkan ke sistem mengalami penurunan. salah suatu peralatan kendali yang memiliki kualitas, efektivitas, dan efisiensi tinggi untuk memaksimalkan kinerja sistem yang baik, berkualitas dan ekonomis dengan menggunakan peralatan Flexible Alternating Current Transmission system (FACTS) salah satu peralatan FACTS yang dapat merancang, mengendalikan dan mengoperasikan si

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I Gusti Agung Rai Yuda Wardana and I. Made Wartana. "Penggunaan Unified Power Flow Controller (UPFC) Untuk Meningkatkan Profil Tegangan Pada Sistem Kelistrikan 150 KV Bali." ALINIER: Journal of Artificial Intelligence & Applications 5, no. 1 (2024): 11–36. http://dx.doi.org/10.36040/alinier.v5i1.5102.

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Abstract—Sistem tenaga listrik pasti akan mengalami rugi-rugi sistem dan ketidakstabilan tegangan yang menyebabkan ketidakmampuan dalam mempertahankan tegangan yang diterima sehingga Daya Aktif (MW) dan Daya Reaktif (MVar) yang dihubungkan ke sistem mengalami penurunan. salah suatu peralatan kendali yang memiliki kualitas, efektivitas, dan efisiensi tinggi untuk memaksimalkan kinerja sistem yang baik, berkualitas dan ekonomis dengan menggunakan peralatan Flexible Alternating Current Transmission system (FACTS) salah satu peralatan FACTS yang dapat merancang, mengendalikan dan mengoperasikan si

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Xu, Hui Yi. "Analysis of Power Flow on Power System with Wind Power Grid." Advanced Materials Research 860-863 (December 2013): 275–79. http://dx.doi.org/10.4028/www.scientific.net/amr.860-863.275.

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With the continuous development of wind energy resources, wind power technology has been integrated into the modern power system. In this paper, according to the Power System Incorporating Wind Farm, selecting typical data distributed Power flow calculation of Built power network. According to data from the results show that grid-connected wind power system, Due to the directly affected by the influence of the wind speed size into the injection power, cause the whole trend distribution network is presented in a state of random changes, thereby affecting the network power loss of change. In ord

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