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Journal articles on the topic 'IEEE bus 14-network'

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Published: 3 June 2025
Last updated: 31 July 2025

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1

Araga, Idris A., and A. E. Airoboman. "Enhancement of voltage stability in an interconnected network using unified power flow controller." Journal of Advances in Science and Engineering 4, no. 1 (2021): 65–74. http://dx.doi.org/10.37121/jase.v4i1.141.

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In this paper, the optimal placement of Unified Power Flow Controllers (UPFC) in a large-scale transmission network in order to improve the loadability margin was considered. In other to achieve this aim, the Line Stability Factor (LQP) as a technique for the optimal location of UPFC in the IEEE 14-bus network and 56-bus Nigerian national grid was adopted. The power injection model for the UPFC was employed to secure improvements in the loading margin of the IEEE 14-bus network and 56-bus Nigerian national grid system. Continuation power flow was used to assess the effect of UPFC on the loadab
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2

Babu, Rohit, and Biplab Bhattacharyya. "A-star algorithm based on admissible searching for strategically placing PMU considering redundancy and cost/benefit analysis." International Journal of Applied Power Engineering (IJAPE) 11, no. 2 (2022): 165. http://dx.doi.org/10.11591/ijape.v11.i2.pp165-178.

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This research examines an admissible search algorithm-dependent A-star strategy and takes into account redundancy and cost/benefit analysis under normal operating conditions. The goal is to allocate a phasor measurement unit (PMU) for maximal observability of the interconnected power network. To determine the fewest number of PMU required to make the connected power network totally observable using redundancy analysis, the A-star approach is utilized. The redundancy analysis of the power network is carried out in order to determine the appropriate PMU placement, which results in the acquisitio
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3

Ahmed, Muhammad Musadiq, Muhammad Amjad, Muhammad Ali Qureshi, Muhammad Omer Khan, and Zunaib Maqsood Haider. "Optimal PMU Placement to Enhance Observability in Transmission Networks Using ILP and Degree of Centrality." Energies 17, no. 9 (2024): 2140. http://dx.doi.org/10.3390/en17092140.

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The optimal PMU placement problem is placing the minimum number of PMUs in the network to ensure complete network observability. It is an NP-complete optimization problem. PMU placement based on cost and critical nodes is solved separately in the literature. This paper proposes a novel approach, a degree of centrality in the objective function, to combine the effect of both strategies to place PMUs in the power network optimally. The contingency analysis and the effect of zero-injection buses are solved to ensure the reliability of network monitoring and attain a minimum number of PMUs. Intege
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Rohit, Babu, and Bhattacharyya Biplab. "A-star algorithm based on admissible searching for strategically placing PMU considering redundancy and cost/benefit analysis." International Journal of Applied Power Engineering 11, no. 2 (2022): 165~178. https://doi.org/10.11591/ijape.v11.i2.pp165-178.

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This research examines an admissible search algorithm-dependent A-star strategy and takes into account redundancy and cost/benefit analysis under normal operating conditions. The goal is to allocate a phasor measurement unit (PMU) for maximal observability of the interconnected power network. To determine the fewest number of PMU required to make the connected power network totally observable using redundancy analysis, the A-star approach is utilized. The redundancy analysis of the power network is carried out in order to determine the appropriate PMU placement, which results in the acquisitio
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5

Kumar, K. Sowjan, B. Nagaraju, K. Satvika, et al. "Optimal Placement and Size Selection 0f Photovoltaic System in IEEE 14 Bus Power Transmission Network." International Journal of Innovative Research in Engineering and Management 9, no. 4 (2022): 161–68. http://dx.doi.org/10.55524/ijirem.2022.9.4.31.

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The analysis and design of energy systems is usually carried out using power flow analysis. This is used for determining the magnitude and phase angle of the load buses and the real and reactive power flows on the transmission lines, as well as the real and reactive powers injected into the buses. In this paper single photo voltaic system is connected to IEEE 14 bus system and run the power flow system and find thecomparison between single and double voltaic systems. In the paper of larger systems computation time increases in this condition, Newton Raphson method.This paper aims to develop a
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Gupta, Santosh Kumar, and Sanjeev Kumar Mallik. "Fast assessment of the voltage stability using reconfigured power system network and artificial neural network approaches." Engineering Research Express 5, no. 3 (2023): 035047. http://dx.doi.org/10.1088/2631-8695/acf189.

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Abstract Planning and running power systems must take voltage stability into account. Instability is mostly caused by the power system’s failure to supply the demand for reactive power. The voltage stability margin must be understood by utilities if they are to operate the power system with the highest level of security and dependability. This paper uses reconfigured 12 bus, 10 bus, and 8-bus reconfigured networks of the interconnected IEEE 14 bus system to demonstrate the proposed quick method for assessing the voltage stability. The original (IEEE 14 bus) and the reconfigured (12 bus, 10 bus
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7

Dhana Sai Sri, M., and P. Srinivasa Varma. "Evaluation and Analysis of Available Transfer Capability in Deregulated Power System Environment." International Journal of Engineering & Technology 7, no. 1.8 (2018): 188. http://dx.doi.org/10.14419/ijet.v7i1.8.16399.

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Reliability of network is need of the hour in the present power system market and is constrained by capability of the network. The network calculations are performed using accurate and high efficient strategies. In order to perform power transactions in the system, the computation of available transfer capability is essential which a metric of capability of the system. Generally, effect wattless power is not taken into account in the methodologies for computation of linear available transfer capability. In this paper, a methodology which considers the reactive power flows for enhancement of li
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8

Gongada, Sandhya Rani, Muktevi Chakravarthy, and Bhukya Mangu. "Power system contingency classification using machine learning technique." Bulletin of Electrical Engineering and Informatics 11, no. 6 (2022): 3091–98. http://dx.doi.org/10.11591/eei.v11i6.4031.

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One of the most effective ways for estimating the impact and severity of line failures on the static security of the power system is contingency analysis. The contingency categorization approach uses the overall performance index to measure the system's severity (OPI). The newton raphson (NR) load flow technique is used to extract network variables in a contingency situation for each transmission line failure. Static security is categorised into five categories in this paper: secure (S), critically secure (CS), insecure (IS), highly insecure (HIS), and most insecure (MIS). The K closest neighb
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Sandhya, Rani Gongada, Chakravarthy Muktevi, and Mangu Bhukya. "Power system contingency classification using machine learning technique." Bulletin of Electrical Engineering and Informatics 11, no. 6 (2022): 3091~3098. https://doi.org/10.11591/eei.v11i6.4031.

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One of the most effective ways for estimating the impact and severity of line failures on the static security of the power system is contingency analysis. The contingency categorization approach uses the overall performance index to measure the system's severity (OPI). The newton raphson (NR) load flow technique is used to extract network variables in a contingency situation for each transmission line failure. Static security is categorised into five categories in this paper: secure (S), critically secure (CS), insecure (IS), highly insecure (HIS), and most insecure (MIS). The K closest ne
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Rohit, Babu, and Bhattacharyya Biplab. "Optimal placement of PMU for complete observability of the interconnected power network considering zero-injection bus: A numerical approach." International Journal of Applied Power Engineering 9, no. 2 (2020): 135~146. https://doi.org/10.5281/zenodo.7349686.

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This paper presents an approach to place the phasor measurement unit (PMU) optimally, which minimizes the setup cost of PMU. This methodology attains complete state estimation of the interconnected power networks. An integer linear programming (ILP) method is explored for the optimal PMU placement problem. It is used to determine the optimal location and minimum number of PMUs necessary to make the interconnected power network completely observable. ILP may provide many solutions if acquainting buses to zero injection buses are unhandled. In the case of more than one solution, a bus observabil
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Hyacinth, Lourdusamy Ramya, and Venugopal Gomathi. "Optimal PMU Placement Technique to Maximize Measurement Redundancy Based on Closed Neighbourhood Search." Energies 14, no. 16 (2021): 4782. http://dx.doi.org/10.3390/en14164782.

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This paper proposes a method for the optimal placement of phasor measurement units (PMUs) for the complete observability of a power system based on the degree of the neighbourhood vertices. A three-stage algorithm is used to determine the minimum number of PMUs needed to make the system observable. The key objective of the proposed methodology is to minimize the total number of PMUs to completely observe a power system network and thereby minimize the installation cost. In addition, the proposed technique also focuses on improving the measurement redundancy. The proposed method is applied on s
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Okorie, Patrick, Abdullahi Kunya, Yusuf Jibril, and Adam Abubakar. "Protection Coordination of Distribution Network with Optimally Placed Distribution Generation." ELEKTRIKA- Journal of Electrical Engineering 18, no. 3 (2019): 13–20. http://dx.doi.org/10.11113/elektrika.v18n3.171.

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In this study, optimal distribution network protection coordination scheme with directional over current relays is developed. In addition, impact of optimally placed Distribution Generation (DG) on the protection coordination scheme is subsequently evaluated using relay Coordination Time Interval (CTI). As such, the study is carried out in two stages. In the first stage, optimal relays settings (time dial settings and pickup current) are determined. While in the second stage, the maximum DG penetration level with changes in the protection coordination is evaluated. Particle Swarm Optimization
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13

Isaac, Samuel, Soyemi Adebola, Awelewa Ayokunle, Katende James, and Awosope Claudius. "Voltage collapse prediction using artificial neural network." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 1 (2021): 124. http://dx.doi.org/10.11591/ijece.v11i1.pp124-132.

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Unalleviated voltage instability frequently results in voltage collapse; which is a cause of concern in power system networks across the globe but particularly in developing countries. This study proposed an online voltage collapse prediction model through the application of a machine learning technique and a voltage stability index called the new line stability index (NLSI_1). The approach proposed is based on a multilayer feed-forward neural network whose inputs are the variables of the NLSI_1. The efficacy of the method was validated using the testing on the IEEE 14-bus system and the Niger
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14

Samuel, Isaac, Adebola Soyemi, Ayokunle Awelewa, James Katende, and Claudius Awosope. "Voltage collapse prediction using artificial neural network." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 1 (2021): 124–32. https://doi.org/10.11591/ijece.v11i1.pp124-132.

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Unalleviated voltage instability frequently results in voltage collapse; which is a cause of concern in power system networks across the globe but particularly in developing countries. This study proposed an online voltage collapse prediction model through the application of a machine learning technique and a voltage stability index called the new line stability index (NLSI_1). The approach proposed is based on a multilayer feed-forward neural network whose inputs are the variables of the NLSI_1. The efficacy of the method was validated using the testing on the IEEE 14-bus system and the Niger
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15

Babu, Rohit, and Biplab Bhattacharyya. "Optimal placement of PMU for complete observability of the interconnected power network considering zero-injection bus: A numerical approach." International Journal of Applied Power Engineering (IJAPE) 9, no. 2 (2020): 135. http://dx.doi.org/10.11591/ijape.v9.i2.pp135-146.

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<div data-canvas-width="397.3623059866966">This paper presents an approach to place the phasor measurement unit (PMU)</div><div data-canvas-width="397.3623059866962">optimally, which minimizes the setup cost of PMU. This methodology attains complete state estimation of the interconnected power networks. An integer linear programming (ILP) method is explored for the optimal PMU placement problem. It is used to determine the optimal location and minimum number of PMUs necessary to make the interconnected power network completely observable. ILP may provide many solutions if acq
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16

Lakshminarayana, P., K. Mercy Rosalina, Ch N. Narasimha Rao, Y. Srinivasa Rao, and M. Uma Maheswara Rao. "Optimal PMU Placement based on Voltage Stability Index for Observability of Network." WSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS 24 (June 19, 2025): 129–34. https://doi.org/10.37394/23201.2025.24.15.

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This work presents a voltage stability Index (FLVSI) for optimal PMU placement (OPP) to achieve complete network observability. Every PQ bus is considered in the FLVSI strategy to attain weak PQ bus from PMUs are conditioned to allocate at weak PQ buses using ILP approach to attain observability of network. Zero Injection (ZIB) modeling is introduced to minimize PMU places in the network. The redundancy Index (RI) is formulated to compute redundancy for all buses in the network. IEEE –14 -39 and 118- bus networks are programmed in MATLAB and compared with standard techniques to present their e
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17

Jethmalani, C. H. Ram, Poornima Dumpa, Sishaj P. Simon, and K. Sundareswaran. "Transmission Loss Calculation using A and B Loss Coefficients in Dynamic Economic Dispatch Problem." International Journal of Emerging Electric Power Systems 17, no. 2 (2016): 205–16. http://dx.doi.org/10.1515/ijeeps-2015-0181.

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Abstract This paper analyzes the performance of A-loss coefficients while evaluating transmission losses in a Dynamic Economic Dispatch (DED) Problem. The performance analysis is carried out by comparing the losses computed using nominal A loss coefficients and nominal B loss coefficients in reference with load flow solution obtained by standard Newton-Raphson (NR) method. Density based clustering method based on connected regions with sufficiently high density (DBSCAN) is employed in identifying the best regions of A and B loss coefficients. Based on the results obtained through cluster analy
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18

Narayana, P. Lakshmi, M. Venkatesan, and S. Ravindra. "Fast Load Voltage Stability Index constrained PMU Placement for Complete Observability." International Journal of Engineering & Technology 7, no. 4.24 (2018): 20. http://dx.doi.org/10.14419/ijet.v7i4.24.21764.

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This paper proposes a Fast Load Voltage Stability Index (FLVSI) constrained Binary Integer Programming (BIP) method for Phasor Measurement Unit placement at optimal locations in network to obtain complete observability. Every load bus of network is considered to sort out weak load bus from proposed FLVSI approach. PMUs are constrained to place at weak load buses using BIP approach for observability of network. Zero Injection (ZI) modeling is suggested to reduce PMU placement locations in network. Single line outage or PMU loss constraints are formulated for placement of PMUs. Bus Redundancy In
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19

Thotakura, Bharath kumar, Hema Bhargavi Borra, and Chinmai Alla. "A novel petri nets algorithm using conditional probability for the evaluation of composite power system reliability." International Journal of Engineering & Technology 7, no. 2 (2018): 564. http://dx.doi.org/10.14419/ijet.v7i2.10909.

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Reliability of an electrical power system plays a vital role in providing continuous power supply to consumers with greater quality. The power demand is increasing day by day due to the increased population, modern society and are seeking highly reliable power. The assessment of reliability is very difficult due to the presence of large number of components and complex power system network con-figurations. This paper address a novel useful step by step algorithm for the assessment of average power availability at load buses us-ing the concept of modified Petri nets with conditional probability
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R. Sukhesh, H., Senthil Vadivu U., Prabhakar Karthikey, and . "Optimal Placement of Fuzzy based UPQC Topologies with Distributed Generation for Power Quality Enhancement in IEEE 14 Bus System." International Journal of Engineering & Technology 7, no. 4.10 (2018): 99. http://dx.doi.org/10.14419/ijet.v7i4.11.20817.

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An Unified Power Quality Conditioner (UPQC), is a combination of shunt and series Active Power Filter (APF), has become a standard accepted solution in the area of current and voltage harmonics mitigation of a power system network. This paper furnishes a comparative analysis of the power quality enhancement and optimization in positioning for three different VSI based UPQC system configurations namely: 3P3W UPQC topology, 3P4W UPQC based on 2C shunt inverter topology and 3P4W UPQC based on 4L shunt inverter topology, all supported with the Fuzzy Logic Controller (FLC), placed at different loca
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21

Alshannaq, Ahmed M., Mohammed A. Haj-ahmed, Mais Aldwaik, and Dia Abualnadi. "Interline Power Flow Controller Allocation for Active Power Losses Enhancement Using Whale Optimization Algorithm." Energies 17, no. 24 (2024): 6318. https://doi.org/10.3390/en17246318.

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Transmission networks face continuous electrical and mechanical stresses due to increasing system challenges and power losses. Transmission networks require special focus and detailed studies each time a load or a generator emerges to the grid. The interline power flow controller (IPFC) is a relatively new scheme that is implemented in the transmission network to improve transmission efficiency, decrease transmission losses, and enhance voltage profile. In this paper, the interline power flow controller’s impact on transmission network performance is investigated as it is implemented within th
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Krishna Praveen, D., ShaikHussain Vali, and Vempalle Rafi. "A Novel Fast Hybrid Frequency Domain Approach for Evaluating Harmonic Power Flow in Electricity Networks." Journal of Physics: Conference Series 2070, no. 1 (2021): 012134. http://dx.doi.org/10.1088/1742-6596/2070/1/012134.

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Abstract Ideally, an AC power supply should constantly provide a perfectly sinusoidal voltage signal at every customer location. Nowadays, many power electronic equipment’s are used in industry in seeking higher system reliability and efficiency and more electronic or microprocessor controllers are used in power system to control AC/DC transmission lines or loads. Moreover, the importance of green energy such as wind and solar is continually growing in our societies not only due to environmental concerns but also to resolve the problem of access to electricity in rural areas. As a result of th
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Che Mat Haris, Harizan, Ismail Musirin, and Mohamad Fadhil Mohd Kamal. "Maximum Loadability Identification Using Self-Tuning Algorithm Considering Voltage Limit." Applied Mechanics and Materials 785 (August 2015): 393–97. http://dx.doi.org/10.4028/www.scientific.net/amm.785.393.

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Due to the complexity of power system nowadays, voltage limit has become a concerned issue. This phenomenon attracted numerous studies in finding the ultimate solution. This paper presents the development of self-tuning technique for identifying maximum loadability for selected buses in a power system network. The algorithm is able to perform fast process in consideration of the voltage limit between 0.9 p.u. to 1.05 p.u. as the acceptable voltage limit in power system community. The proposed concept is conducted for single and multi-load increment; executed on IEEE 14-Bus RTS and IEEE 26-Bus
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Estakhr, Javad, Mohsen Simab, and Taher Niknam. "Security Analysis of Hybrid Multi-Carrier Energy Systems." Sustainability 13, no. 6 (2021): 3102. http://dx.doi.org/10.3390/su13063102.

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Multi-carrier energy systems (MCESs) provide collaboration between various kinds of energy carriers to supply the electricity, heating, and cooling demands. With the widespread use of MCESs in recent years, the security assessment of energy systems has attracted the attention of many contemporary researchers. However, the complexity of an MCES, including electrical, natural gas, and district heating networks, and different uncertainties imposes vast challenges to keep a safe operation energy supply. In this paper, a systematic methodology for the security analysis of MCESs is presented. For th
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Sukhesh, H. R., and Senthil Vadivu U. "Cascade PI-Fuzzy Based Position Optimization of Nonal Switched UPQC with DG for Power Quality Enhancement in IEEE 14 Bus System." WSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS 20 (April 8, 2021): 43–47. http://dx.doi.org/10.37394/23201.2021.20.5.

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An Unified Power Quality Conditioner (UPQC), owning the composition of shunt and series Active Power Filter (APF), has become a standard accepted solution in the area of current and voltage harmonics mitigation of a power system network. This paper furnishes a novel approach of nonal switched UPQC topology, supported with Distributed Generation (DG), aiming at the power quality enhancement and position optimization, placed at different locations in a standard IEEE 14 bus system. In addition to this, behaviour of the proposed topology is analysed using novel Cascade Proportional Integral (PI) -
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Saxena, Akash, and Ankit Kumar Sharma. "Assessment of Global Voltage Stability Margin through Radial Basis Function Neural Network." Advances in Electrical Engineering 2016 (September 29, 2016): 1–11. http://dx.doi.org/10.1155/2016/4858431.

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Dynamic operating conditions along with contingencies often present formidable challenges to the power engineers. Decisions pertaining to the control strategies taken by the system operators at energy management centre are based on the information about the system’s behavior. The application of ANN as a tool for voltage stability assessment is empirical because of its ability to do parallel data processing with high accuracy, fast response, and capability to model dynamic, nonlinear, and noisy data. This paper presents an effective methodology based on Radial Basis Function Neural Network (RBF
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Haj-ahmed, Mohammed, Mais M. Aldwaik, and Dia Abualnadi. "Optimal Allocation of Phasor Measurement Units Using Particle Swarm Optimization: An Electric Grid Planning Perspective." Energies 18, no. 5 (2025): 1225. https://doi.org/10.3390/en18051225.

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In this paper, the particle swarm optimization (PSO) technique is used to optimally allocate phasor measurement units (PMUs) within standard test systems and a real-world power system. PMUs are allocated at system substations in a manner that ensures complete system observability while minimizing installation costs. This study considers IEEE 14-, 30-, and 57-bus standard test systems, along with the Jordanian national high-voltage grid. The optimal allocation was performed separately on the 132 kV and 400 kV buses of the Jordanian grid. Additionally, a novel technique for further minimization
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BABU, P. SURESH, P. B. CHENNAIAH, and M. SREEHARI. "Optimal Placement of SVC Using Fuzzy and Firefly Algorithm." IAES International Journal of Artificial Intelligence (IJ-AI) 4, no. 4 (2015): 113. http://dx.doi.org/10.11591/ijai.v4.i4.pp113-117.

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<p>Voltage stability is major phenomena in any power system network for reliability and continuity operation. But the tight operation of power system due to overloading or fault on the system which is evitable and major threat to the power system. So it is necessary to maintain the voltages within the constraints at the overloading conditions also by placing of Static VAR Compensator (SVC) at optimal locations. New approaches are used to find the placement and size of the SVC at different locations. Fuzzy is used to find the location and the size of the SVC is fined by the Firefly algori
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Dandotia, Ashish, Mukesh Kumar Gupta, Malay Kumar Banerjee, et al. "Optimal Placement and Size of SVC with Cost-Effective Function Using Genetic Algorithm for Voltage Profile Improvement in Renewable Integrated Power Systems." Energies 16, no. 6 (2023): 2637. http://dx.doi.org/10.3390/en16062637.

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Given the concern for maintaining voltage stability in power systems integrated with renewable power systems due to a mismatch in generation and demand, there remains a need to invoke flexible alternating current transmission system (FACTS) devices in the distribution network. The present paper deals with identifying the locations of placement of a static var compensator in an experimental IEEE 14-bus system; the voltage drop in different buses in an IEEE 14-bus system is calculated by the standard formula. The total voltage drop in the network (TVDN) is also calculated as a reference. The ran
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Badrudeen, Tayo Uthman, Funso Kehinde Ariyo, Ayodeji Olalekan Salau, and Sepiribo Lucky Braide. "Analysis of a new voltage stability pointer for line contingency ranking in a power network." Bulletin of Electrical Engineering and Informatics 11, no. 6 (2022): 3033–41. http://dx.doi.org/10.11591/eei.v11i6.4266.

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Improper management of reactive power in a power network could lead to voltage instability. This paper presents a well-detailed study on voltage instability due to violation of power equilibrium in a power network and introduces a new voltage stability pointer (NVSP). The proposed NVSP is developed from a reduced 2-bus interconnected network to predict the sensistivity of voltage stability to reactive power variation. The simulation results from MATLAB were evaluated on IEEE 14-bus test system. The contingency ranking was achieved by varying the reactive power on the load buses to its maximum
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Tayo, Uthman Badrudeen, Kehinde Ariyo Funso, Olalekan Salau Ayodeji, and Lucky Braide Sepiribo. "Analysis of a new voltage stability pointer for line contingency ranking in a power network." Bulletin of Electrical Engineering and Informatics 11, no. 6 (2022): 3033~3041. https://doi.org/10.11591/eei.v11i6.4266.

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Improper management of reactive power in a power network could lead to voltage instability. This paper presents a well-detailed study on voltage instability due to violation of power equilibrium in a power network and introduces a new voltage stability pointer (NVSP). The proposed NVSP is developed from a reduced 2-bus interconnected network to predict the sensistivity of voltage stability to reactive power variation. The simulation results from MATLAB were evaluated on IEEE 14-bus test system. The contingency ranking was achieved by varying the reactive power on the load buses to its maximum
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Singh, Satyendra Pratap, and S. P. Singh. "On-line Assessment of Voltage Stability using Synchrophasor Technology." Indonesian Journal of Electrical Engineering and Computer Science 8, no. 1 (2017): 1. http://dx.doi.org/10.11591/ijeecs.v8.i1.pp1-8.

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Series of blackouts encountered in recent years in power system have been occurred because either of voltage or angle instability or both together was not detected within time and progressive voltage or angle instability further degraded the system condition, because of increase in loading. This paper presents the real-time assessment methodology of voltage stability using Phasor Measurement Unit (PMU) with observability of load buses only in power network. PMUs are placed at strategically obtained location such that minimum number of PMU’s can make all load buses observable. Data obtained by
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Koochaki, Amangaldi, and Shahram Montaser Kouhsari. "Simulation of simultaneous unbalances in power system transient stability analysis." SIMULATION 87, no. 11 (2010): 976–88. http://dx.doi.org/10.1177/0037549710385167.

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In this paper a novel method based on network decomposition algorithm is presented to implement simultaneous unbalances in power system transient stability (T/S) studies. The proposed network decomposition algorithm employs bus-tearing and Diakoptics concepts. In combination with Large Change Sensitivity (LCS) analysis, which allows the procedure to evaluate system responses without resolving the whole problem, an accurate method is developed to solve the simultaneous unbalances in T/S analysis. The proposed method is implemented successfully in software and the results are validated in compar
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Randriambololona, Vonjitina Fabien, Liva Graffin Rakotoarimanana, Eulalie Odilette Rafanjanirina, Minoson Rakotomalala, and Zely Arivelo Randriamanantany. "Influencing Factors on Power Losses in Electric Distribution Network." International Journal of Advanced Engineering, Management and Science 9, no. 5 (2023): 32–46. http://dx.doi.org/10.22161/ijaems.95.6.

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Line losses reduction greatly affects the performance of the electric distribution network. This paper aims to identify the influencing factors causing power losses in that network. Newton-Raphson method is used for the loss assessment and the Sensitivity analysis by approach One-Factor-At-A-Time (OAT) for the influencing factors identification. Simulation with the meshed IEEE-30 bus test system is carried out under MATLAB environment. Among the 14 parameters investigated of each line, the result shows that the consumed reactive powers by loads, the bus voltages and the linear parameters are t
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Lilian, Ugonna Ijeoma. "A Comparative Study of the Prediction of Voltage Collapse in Power System Network." Asian Journal of Science, Technology, Engineering, and Art 3, no. 1 (2024): 32–67. https://doi.org/10.58578/ajstea.v3i1.4276.

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Instability of the power system voltage often results in voltage loss and /or the system collapse, which is a problem for operators and users of power networks. This work presents a stability index suitable for examining the Power System Networks (PSNs) voltage condition. The measure, known as the ABCD Line Stability Index (ABCD_LSI), is derived from a transmission line’s two port network and ABCD parameters using the π-model. It is therefore necessary to treat the equation of the transmission line in the form of complex power and voltage. The goal of the ABCD_LSI index was to predict the volt
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36

Giri, Jayprakash, Sh Rajiv Chauhan, and Smt Nidhi Mishra. "Performance Study on IEEE Bus System for Contingency Problem and Mitigation." SMART MOVES JOURNAL IJOSCIENCE 7, no. 3 (2021): 49–57. http://dx.doi.org/10.24113/ijoscience.v7i3.382.

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The increasing dependence of most businesses on electricity requires regular improvements in distribution systems. The main objective of this study is to provide load balancing in the distribution network by reducing the loss of system performance without violating the voltage and current limits of the power supplies. And the selection of the power system contingency by calculating the transmission line failure performance indices using the load flow analysis on the IEEE 14 bus system. To determine and tabulate the voltage on each bus, the actual current flow on each line and power system leak
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37

Shah, Mohazzem Hossain, and Hasib Chowdhury Abdul. "Multi-objective optimal placement of distributed generations for dynamic loads." International Journal of Electrical and Computer Engineering (IJECE) 9, no. 4 (2019): 2303–13. https://doi.org/10.11591/ijece.v9i4.pp2303-2313.

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Large amount of active power losses and low voltage profile are the two major issues concerning the integration of distributed generations with existing power system networks. High R/X ratio and long distance of radial network further aggravates the issues. Optimal placement of distributed generators can address these issues significantly by alleviating active power losses and ameliorating voltage profile in a cost effective manner. In this research, multi-objective optimal placement problem is decomposed into minimization of total active power losses, maximization of bus voltage profile enhan
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38

Awalin, Lilik Jamilatul, Syahirah Abd Halim, Nor Azuana Ramli, Jafferi Jafferi, and Mohd Syukri Ali. "Wide area monitoring system control management of theIEEE-14 bus system using least square support vector regression." Indonesian Journal of Electrical Engineering and Computer Science 27, no. 2 (2022): 780–92. https://doi.org/10.11591/ijeecs.v27.i2.pp780-792.

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The wide area monitoring system (WAMS) records and monitors every fault or disturbance that occurs in a power system network using phasor measuring units (PMUs). Extensive monitoring of the condition of theelectrical power system can ensure the sustainability of reliable energy. Theaccuracy of the PMUs placement can be determined using the least squaresupport vector regression (LS-SVR) technique. The primary goal of this study is to assess the level of accuracy of the PMUs placement using meansquare error (MSE). First, the IEEE-14 bus system equipped with PMUs was built in Matlab software usin
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39

Zhang, Jiaxing, Bo Wang, Hengrui Ma, Yifan He, Hongxia Wang, and Hanqi Zhang. "Reliability Evaluation Method for Underground Cables Based on Double Sequence Monte Carlo Simulation." Processes 13, no. 2 (2025): 505. https://doi.org/10.3390/pr13020505.

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With the increasing demand for electrical reliability, power grid companies often need to operate urban underground cable systems at flexible ratings during planned or emergency events, but the risk of failure caused by such loading operations has not yet been quantified. Based on this, this paper proposes a reliability assessment method for underground cables based on dual sequence Monte Carlo simulation, which can consider the cumulative risk impact caused by electrical faults and insulation aging of underground cables during emergency events. Firstly, the integration of the electrical and t
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Ibrahim, Ismael Alnaib, Sh. Alyozbaky Omar, and Abbawi Ali. "A NEW APPROACH TO DETECTING AND CLASSIFYING MULTIPLE FAULTS IN IEEE 14-BUS SYSTEM." Eastern-European Journal of Enterprise Technologies 5, no. 8 (107) (2020): 6–16. https://doi.org/10.15587/1729-4061.2020.208698.

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Faults in the power system generally provide considerable changes in its quantities such as under or over-power, over-current, current or power direction, frequency, impedance, and power factor. Reading data related to both currents and voltages is usually involved for detecting and situating the fault on the transmission network. These days, any outage of power in a power grid leads to heavy financial losses for commercial, industrial, and domestic consumers. Random and irregular faults in transmission grids contribute significantly to events of power outages. A significant contribution of th
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41

Raj, Saurav, Sheila Mahapatra, Chandan Kumar Shiva, and Biplab Bhattacharyya. "Implementation and Optimal Sizing of TCSC for the Solution of Reactive Power Planning Problem Using Quasi-Oppositional Salp Swarm Algorithm." International Journal of Energy Optimization and Engineering 10, no. 2 (2021): 74–103. http://dx.doi.org/10.4018/ijeoe.2021040104.

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In this article, innovative algorithms named as salp swarm algorithm (SSA) and hybrid quasi-oppositional SSA (QOSSA) techniques have been proposed for finding the optimal coordination for the solution of reactive power planning (RPP). Quasi-oppositional based learning is a promising technique for improving convergence and is implemented with SSA as a new hybrid method for RPP. The proposed techniques are successfully implemented on standard test systems for deprecation of real power losses and overall cost of operation along with retention of bus voltages under acceptable limits. Optimal plann
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42

Lan, Jian, Dong Xu Wang, Xue Zheng, Kai Pei Liu, and Cai Xia Yang. "Fault Location Method in Complex Power Network Based on Power Quality Monitoring Data." Advanced Materials Research 732-733 (August 2013): 1320–27. http://dx.doi.org/10.4028/www.scientific.net/amr.732-733.1320.

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In this paper, a fault location method using power quality monitoring data is proposed. The fault location is divided into two classes including fault line recognition and fault distance calculation. Along the each power line in the target network some fictitious fault points are set and the fault voltage of each monitoring bus is calculated. The voltage dip calculation results and the fault line data are matched to form the learning samples and then train the designed fault line recognition BP artificial neural network. The trained neural network searches the fault line when actual fault occu
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Ahmad, Fateh Mohamad Nor, and Sulaiman Marizan. "Voltage instability analysis based on modal analysis technique and artificial neural network." Indonesian Journal of Electrical Engineering and Computer Science 13, no. 3 (2019): 1274–79. https://doi.org/10.11591/ijeecs.v13.i3.pp1274-1279.

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One of the paramount importance in the operation of electrical power system operation order to sustain the equilibrium of the system is the stability of the load buses’ voltages. If the load buses voltages are not stable, this can cause serious problem especially power system blackout. This paper presents the analysis of voltage instability in electric power system by using modal analysis technique. However, one of the challenges of modal analysis is the intencive and complex calculation procedures. In order to overcome that, this paper implements Artificial Neural Network (ANN) to impro
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44

Awalin, Lilik Jamilatul, Syahirah Abd Halim, Nor Azuana Ramli, Jafferi Bin Jamaludin, and Mohd Syukri Ali. "Wide area monitoring system control management of the IEEE-14 bus system using least square support vector regression." Indonesian Journal of Electrical Engineering and Computer Science 27, no. 2 (2022): 780. http://dx.doi.org/10.11591/ijeecs.v27.i2.pp780-792.

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The <span>wide area monitoring system (WAMS) records and monitors every fault or disturbance that occurs in a power system network using phasor measuring units (PMUs). Extensive monitoring of the condition of the electrical power system can ensure the sustainability of reliable energy. The accuracy of the PMUs placement can be determined using the least square support vector regression (LS-SVR) technique. The primary goal of this study is to assess the level of accuracy of the PMUs placement using mean square error (MSE). First, the IEEE-14 bus system equipped with PMUs was built in Matl
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45

Chang, Xue Fei, Xiang Yu Lv, and De Xin Li. "Active Power Optimization Considering both Generation Cost and Network Loss." Applied Mechanics and Materials 556-562 (May 2014): 1643–46. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.1643.

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In order to improve the calculation efficiency, active power and reactive power are usually optimized separately in optimal power flow considering the decoupling characteristic. However, this would decrease the economy performance of power system. This paper proposed a weighting factor to formulate a multi-objective model, combining the generation cost and system network loss together. The optimization problem is performed using genetic algorithms and quadratic programming respectively. Finally, the feasibility and efficiency of the proposed model are verified with the IEEE 14 Bus test system.
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46

Abdelhay, Zeinb, Abdelfattah Eladl, and Ibrahim I. Mansy. "Technical/economic/environmental optimal wind generation allocation in power systems." International Journal of Power Electronics and Drive Systems (IJPEDS) 15, no. 1 (2024): 431. http://dx.doi.org/10.11591/ijpeds.v15.i1.pp431-441.

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This paper proposes an optimization technique to find the optimal allocation of wind farms (WFs) in a transmission network considering several objectives associated with economic, losses, voltage profile, and environmental impact represented in the reduction of carbon emissions. The problem is solved on the basis of maintaining three constraints which are transmission line power limits, active/reactive power constrain, and bus voltage limits. The particle swarm optimization (PSO) algorithm and Newton-Raphson method for load flow analysis are utilized to solve the optimization problem as a whol
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47

Abou El-Ela, A., A. Kinawy, R. El-Sehiemy, and M. Mouwafi. "Ant colony optimizer for phasor measurement units placement." International Review of Applied Sciences and Engineering 5, no. 2 (2014): 127–34. http://dx.doi.org/10.1556/irase.5.2014.2.4.

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This paper proposes an approach for optimal placement of phasor measurement units (PMUs) for complete observability at normal and emergency conditions such as any single line outage or any single PMU loss using ant colony optimization (ACO) algorithm. The objective function is to find the optimal locations of PMUs and the minimum number of PMU channels by optimizing the logic decision of control variables, under the observability constraint. The ACO algorithm is applied to the standard IEEE 14-bus, 30-bus and New England 39-bus systems. In addition, an application of the proposed algorithm to
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48

Goa Tella, Teshome, Stanley Simiyu Sitati, and George Nyauma Nyakoe. "Effect of reactive power loading on the stability of power network bus voltage and transmission line." International Journal of Engineering & Technology 7, no. 4 (2018): 4995–5000. http://dx.doi.org/10.14419/ijet.v7i4.25816.

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Increased loading results in the instability of bus voltages and power transmission lines, which results in the outage of power transmission lines. For stable operation, finding the maximum loading limit of buses is needed. This paper introduces newly proposed modified voltage stability index (MVSI) and line stability index (Lst) that are used to rank buses and lines, respectively, based on the severity of load contingency. Thus, to account for the effect of inductive load on bus voltage and line stability, only load reactive power is increased up to its maximum stability limit. The MVSI
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49

Raju, V. Vijaya Rama, K. H. Phani Shree, and S. V. Jayarama Kumar. "Voltage instability identification with modified L-index using synchrophasor data." Indonesian Journal of Electrical Engineering and Computer Science 23, no. 3 (2021): 1340. http://dx.doi.org/10.11591/ijeecs.v23.i3.pp1340-1349.

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<p>In the prevailing open-access environment, one of the limitations for power exchanges has been voltage stability. The study of voltage stability necessitates a complete network representation. In this paper, the advantage of the dynamic behavior of generators is considered by incorporating dynamic models for generators. It has been shown dynamic models resulted in more accurate results compared to the conventional PV buses or ideal voltage source models that are used in most of the voltage stability studies. Moreover, the traditional L-index is augmented by incorporating real-time and
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50

NAWAS, AHAMED HUSSAIN ASIF NOORUL, and SELVAPERUMAL SUNDARAMOORTHY. "GIANT TREVALLY OPTIMIZED CONGESTION MANAGEMENT USING FACTS CONTROLLER ALLOCATION IN DEREGULATED ELECTRICITY MARKETS." REVUE ROUMAINE DES SCIENCES TECHNIQUES — SÉRIE ÉLECTROTECHNIQUE ET ÉNERGÉTIQUE 69, no. 4 (2024): 377–82. http://dx.doi.org/10.59277/rrst-ee.2024.69.4.2.

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One of the technical issues arising from deregulation is transmission line congestion. The size and location of FACTS controllers like thyristor-controlled series compensators (TCSCs) and static VAR compensator (SVC) devices significantly affect their efficiency in congestion management problems. As a nonlinear problem, locating and sizing these devices in a power network is difficult. To solve this issue, this paper presents the technique for optimal FACTS placement using the giant trevally optimizer (GTO) algorithm for congestion management (CM). Three objective functions are considered to r
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