Pub Date : 2022-12-13DOI: 10.1109/MEPCON55441.2022.10021746
R. Eiada, E. Badran
The employment of DG in a distribution system is fraught with difficulties. The appropriate location and DG rating selection can help to reduce the system losses and cost. Many strategies for solving and optimizing the DG location and rating were provided in previous courses. By maximizing the goal functions, the ideal places and sizes to connect several DG units can be discovered. In this study, a proposed strategy for minimizing loss and cost, which incorporates the cost of system losses with DG, is described. The suggested approach is based on using jumping frogs for particle swarm optimization (JFPSO). This method depends on a thorough examination of the precise loss formula as well as continuous power flow in the distribution system. Additionally, analysis techniques are used to calculate power loss and the voltage buses with the lowest strength. The best-distributed generation size is then found. It utilizes the IEEE 30-bus system by the suggested strategy.
{"title":"Minimization Losses of Distribution Systems connected with Distributed Generation Units using JFPSO","authors":"R. Eiada, E. Badran","doi":"10.1109/MEPCON55441.2022.10021746","DOIUrl":"https://doi.org/10.1109/MEPCON55441.2022.10021746","url":null,"abstract":"The employment of DG in a distribution system is fraught with difficulties. The appropriate location and DG rating selection can help to reduce the system losses and cost. Many strategies for solving and optimizing the DG location and rating were provided in previous courses. By maximizing the goal functions, the ideal places and sizes to connect several DG units can be discovered. In this study, a proposed strategy for minimizing loss and cost, which incorporates the cost of system losses with DG, is described. The suggested approach is based on using jumping frogs for particle swarm optimization (JFPSO). This method depends on a thorough examination of the precise loss formula as well as continuous power flow in the distribution system. Additionally, analysis techniques are used to calculate power loss and the voltage buses with the lowest strength. The best-distributed generation size is then found. It utilizes the IEEE 30-bus system by the suggested strategy.","PeriodicalId":174878,"journal":{"name":"2022 23rd International Middle East Power Systems Conference (MEPCON)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116250443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-13DOI: 10.1109/MEPCON55441.2022.10021752
R. Saleh, Noran R. Elkady, R. Amer
In this paper, fuzzy logic (FL) controllers are designed to enhance the performance of a direct-driven fully superconducting generator (FSG) incorporated in a wind energy conversion system (WECS) over various operational scenarios. The under study system consists of a grid connected FSG through back-to-back voltage source converters integrated with capacitor banks. The studied system is simulated and tested using Simulink environment. The output power from the wind turbine is limited via a pitch angle control. Completely decoupled controllers, designed by PSO algorithm, are applied to both generator side and grid side converters. FL controllers' effectiveness is examined under different operating conditions and various disturbances. Comparative results show significant improvements in the system performance and superior operation of the WECS with FL controllers over its performance with PI controller.
{"title":"Performance Enhancement of a Wind-driven Fully Superconducting Generator by Fuzzy logic Control","authors":"R. Saleh, Noran R. Elkady, R. Amer","doi":"10.1109/MEPCON55441.2022.10021752","DOIUrl":"https://doi.org/10.1109/MEPCON55441.2022.10021752","url":null,"abstract":"In this paper, fuzzy logic (FL) controllers are designed to enhance the performance of a direct-driven fully superconducting generator (FSG) incorporated in a wind energy conversion system (WECS) over various operational scenarios. The under study system consists of a grid connected FSG through back-to-back voltage source converters integrated with capacitor banks. The studied system is simulated and tested using Simulink environment. The output power from the wind turbine is limited via a pitch angle control. Completely decoupled controllers, designed by PSO algorithm, are applied to both generator side and grid side converters. FL controllers' effectiveness is examined under different operating conditions and various disturbances. Comparative results show significant improvements in the system performance and superior operation of the WECS with FL controllers over its performance with PI controller.","PeriodicalId":174878,"journal":{"name":"2022 23rd International Middle East Power Systems Conference (MEPCON)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122587673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-13DOI: 10.1109/MEPCON55441.2022.10021715
Mahmoud A. Mossa, N. E. Ouanjli, Olfa Gam, O. Kamel
This article concerns with enhancing the dynamics of a hybrid wind/PV/battery system feeding an isolated load. The complete system components are firstly modeled and described in detail. The paper contribution is presented through designing an efficient control topology for managing the dynamics of the wind-driven generator and comparing its performance with one of the existent control algorithms to visualize its advantages. The study also adopts a power management procedure for achieving the optimal power flow in the system. An effective control procedure is also utilized to control the battery performance. The performance of PV system is optimally managed to maintain the maximum power extraction. The obtained results confirm the advantages of the designed controller used with the wind generation system in comparison with the existent control approach. It also approves the validity of the power management procedure in stabilizing the power transfer and achieving an optimal exploitation of wind and solar energies.
{"title":"Performance improvement of a hybrid energy system feeding an isolated load","authors":"Mahmoud A. Mossa, N. E. Ouanjli, Olfa Gam, O. Kamel","doi":"10.1109/MEPCON55441.2022.10021715","DOIUrl":"https://doi.org/10.1109/MEPCON55441.2022.10021715","url":null,"abstract":"This article concerns with enhancing the dynamics of a hybrid wind/PV/battery system feeding an isolated load. The complete system components are firstly modeled and described in detail. The paper contribution is presented through designing an efficient control topology for managing the dynamics of the wind-driven generator and comparing its performance with one of the existent control algorithms to visualize its advantages. The study also adopts a power management procedure for achieving the optimal power flow in the system. An effective control procedure is also utilized to control the battery performance. The performance of PV system is optimally managed to maintain the maximum power extraction. The obtained results confirm the advantages of the designed controller used with the wind generation system in comparison with the existent control approach. It also approves the validity of the power management procedure in stabilizing the power transfer and achieving an optimal exploitation of wind and solar energies.","PeriodicalId":174878,"journal":{"name":"2022 23rd International Middle East Power Systems Conference (MEPCON)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126250670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-13DOI: 10.1109/MEPCON55441.2022.10021805
Eyad S. Oda, Amr A. Amr, A. Abdelsalam, Ahmed A. Salem
Unit Commitment (UC) is a complex engineering problem. The UC solution used by engineers and researchers to plan out power system operations. In planning phase, it is decided which generating units would work and when they would work, at each power station under different generational, environmental, and technical constraints. This paper presents two novel bio-inspired optimization algorithms called Rat Swarm Optimizer (RSO) and Seagull optimization algorithm (SOA) for solving the challenging unit commitment optimization problem on the parameters of the IEEE 30 Bus system. The inspiration of RSO is chasing and attacking behaviors of rats, whereas the idea of a seagull optimization algorithm is based on migration and attacking behaviors of a seagull in nature.The proposed solutions on the unit commitment problem are compared with the previously proposed algorithm like Modified Imperialistic Competitive Algorithm (MICA), Genetic Algorithm (GA), Particle swarm optimization (PSO), etc. The results are compared to each other under same practical constraints for all algorithms. These constraints include the inconsistent characteristics of the electrical power system due to the irregular thermal generation cost and non-convexity nature by binary state ON/OFF decision. Undoubtedly, the world is evolving towards smarter solutions, so renewable energy sources are dominating conventional resources. This work highlights the significance of the integrated renewable energy resources (RES) electrical power system with conventional resources, and unfolds the impacts of RES into cost and power for an effective economic dispatch solution approach. The prime focus of this study will be on the Solar PV and Wind Energy resources integration into the system. The discussion will be made over the conventional resources and RES on the cost and evaluating functions.
{"title":"Unit Commitment in Presence of Renewable Energy using Rat and Seagull Optimization Algorithm","authors":"Eyad S. Oda, Amr A. Amr, A. Abdelsalam, Ahmed A. Salem","doi":"10.1109/MEPCON55441.2022.10021805","DOIUrl":"https://doi.org/10.1109/MEPCON55441.2022.10021805","url":null,"abstract":"Unit Commitment (UC) is a complex engineering problem. The UC solution used by engineers and researchers to plan out power system operations. In planning phase, it is decided which generating units would work and when they would work, at each power station under different generational, environmental, and technical constraints. This paper presents two novel bio-inspired optimization algorithms called Rat Swarm Optimizer (RSO) and Seagull optimization algorithm (SOA) for solving the challenging unit commitment optimization problem on the parameters of the IEEE 30 Bus system. The inspiration of RSO is chasing and attacking behaviors of rats, whereas the idea of a seagull optimization algorithm is based on migration and attacking behaviors of a seagull in nature.The proposed solutions on the unit commitment problem are compared with the previously proposed algorithm like Modified Imperialistic Competitive Algorithm (MICA), Genetic Algorithm (GA), Particle swarm optimization (PSO), etc. The results are compared to each other under same practical constraints for all algorithms. These constraints include the inconsistent characteristics of the electrical power system due to the irregular thermal generation cost and non-convexity nature by binary state ON/OFF decision. Undoubtedly, the world is evolving towards smarter solutions, so renewable energy sources are dominating conventional resources. This work highlights the significance of the integrated renewable energy resources (RES) electrical power system with conventional resources, and unfolds the impacts of RES into cost and power for an effective economic dispatch solution approach. The prime focus of this study will be on the Solar PV and Wind Energy resources integration into the system. The discussion will be made over the conventional resources and RES on the cost and evaluating functions.","PeriodicalId":174878,"journal":{"name":"2022 23rd International Middle East Power Systems Conference (MEPCON)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125791564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-13DOI: 10.1109/MEPCON55441.2022.10021735
Abdelrahman M. Farghly, Mohamed El Habrouk, K. Ahmed, A. Abdel-Khalik, R. Hamdy
LCC (Line Commutated Converter) in HVDC (High Voltage Direct current) systems inject current harmonics in both DC transmission side and AC grids. Therefore, several techniques based on either passive and active filter have been proposed and applied to minimize the effect of these harmonics. This paper designs an SAPF (Shunt Active Power Filter) to compensate for the harmonics of an LCC converter. The control method was utilized based on SRF (Synchronous Reference Frame) theory to calculate reference currents based on dq transformation. This filter is used in a hybrid system consisting of a Twelve-pulse LCC and an MMC (Modular Multi Converter) (300 kV) HVDC system for reactive power reduction and harmonic current control compensation concurrently. A Control-Hardware-in-the-Loop (CHiL) platform is utilized to verify the validity of the proposed system.
{"title":"Active Power Filter for12-Pulse LCC Converter Employed in LCC-MMC Hybrid HVDC System","authors":"Abdelrahman M. Farghly, Mohamed El Habrouk, K. Ahmed, A. Abdel-Khalik, R. Hamdy","doi":"10.1109/MEPCON55441.2022.10021735","DOIUrl":"https://doi.org/10.1109/MEPCON55441.2022.10021735","url":null,"abstract":"LCC (Line Commutated Converter) in HVDC (High Voltage Direct current) systems inject current harmonics in both DC transmission side and AC grids. Therefore, several techniques based on either passive and active filter have been proposed and applied to minimize the effect of these harmonics. This paper designs an SAPF (Shunt Active Power Filter) to compensate for the harmonics of an LCC converter. The control method was utilized based on SRF (Synchronous Reference Frame) theory to calculate reference currents based on dq transformation. This filter is used in a hybrid system consisting of a Twelve-pulse LCC and an MMC (Modular Multi Converter) (300 kV) HVDC system for reactive power reduction and harmonic current control compensation concurrently. A Control-Hardware-in-the-Loop (CHiL) platform is utilized to verify the validity of the proposed system.","PeriodicalId":174878,"journal":{"name":"2022 23rd International Middle East Power Systems Conference (MEPCON)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125212686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-13DOI: 10.1109/MEPCON55441.2022.10021749
Amani Shammary, Ahmed A. A. Hafez, Alaa. F. M. Ali, A. A. Mahmoud, Mahmoud Ibrahim Mohamed, Mostafa A. Merazy
1The potential to integrate multicarrier energy systems that fulfill the rapidly increasing energy demand is being made possible by combining renewable energy sources (RES) encompassing wind and solar into massive-scale fossil fuel power generating stations. This article provides a thorough overview of the energy hub while highlighting its benefits, such as optimizing energy consumption and reducing greenhouse gas emissions. Energy hub systems are considered the future trendsetter for energy systems. A number of their merits over conventional energy systems are reported in this article. Solar farms, wind turbines, boilers, power-to-gas (P2G) units, fossil-fueled combined cycle power plants (CCPPs), and electric and thermal storing units are components of an energy hub that generates and transforms energy. Levelized cost of energy (LCOE), Levelized C02 emission (LC02), and Levelized Cost of Hydrogen (LCOH) are considered the main parameters for comparing different energy hubs in this article. Energy storing and transmutation technologies are vital for energy-established systems.
{"title":"Energy Hub Modeling and Operation, A Comprehensive Review","authors":"Amani Shammary, Ahmed A. A. Hafez, Alaa. F. M. Ali, A. A. Mahmoud, Mahmoud Ibrahim Mohamed, Mostafa A. Merazy","doi":"10.1109/MEPCON55441.2022.10021749","DOIUrl":"https://doi.org/10.1109/MEPCON55441.2022.10021749","url":null,"abstract":"1The potential to integrate multicarrier energy systems that fulfill the rapidly increasing energy demand is being made possible by combining renewable energy sources (RES) encompassing wind and solar into massive-scale fossil fuel power generating stations. This article provides a thorough overview of the energy hub while highlighting its benefits, such as optimizing energy consumption and reducing greenhouse gas emissions. Energy hub systems are considered the future trendsetter for energy systems. A number of their merits over conventional energy systems are reported in this article. Solar farms, wind turbines, boilers, power-to-gas (P2G) units, fossil-fueled combined cycle power plants (CCPPs), and electric and thermal storing units are components of an energy hub that generates and transforms energy. Levelized cost of energy (LCOE), Levelized C02 emission (LC02), and Levelized Cost of Hydrogen (LCOH) are considered the main parameters for comparing different energy hubs in this article. Energy storing and transmutation technologies are vital for energy-established systems.","PeriodicalId":174878,"journal":{"name":"2022 23rd International Middle East Power Systems Conference (MEPCON)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128069889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-13DOI: 10.1109/MEPCON55441.2022.10021802
Mohamed E. Kotb, A. M. Saber, T. Boghdady
Line current differential relays (LCDRs) depend on wide area communication networks (WANs) and global positioning systems (GPS), which is a major challenge since both WANs and GPS signals are vulnerable to cyberattacks. For instance, attackers may use false data injection (FDI) to tamper with the signals sent from one line terminal to the LCDR, causing the LCDR to make the incorrect decision. This wrong decision may disconnect a healthy line or fail to trip a faulty line, seriously harming the system. This paper proposes two techniques to (i) detect FDI attacks, (ii) distinguish between missed-tripping attacks and a healthy line, and (iv) ensure that the trip order is sent by the LCDR only when there is a real fault. In the first technique, after the LCDR is triggered, it evaluates the data received from the other terminal by using the local instantaneous voltage and current measurements. The second technique is based on sending a signal of an encrypted predefined value, which is only sent after the remote LCDR senses a fault. Manipulation of this signal is a sign of intrusion, which activates backup protection. Both techniques can be implemented in LCDRs to detect cyberattacks on LCDRs and ensure optimum dependability.
{"title":"Simple Robust Line Current Differential Protection Against Cyberattacks","authors":"Mohamed E. Kotb, A. M. Saber, T. Boghdady","doi":"10.1109/MEPCON55441.2022.10021802","DOIUrl":"https://doi.org/10.1109/MEPCON55441.2022.10021802","url":null,"abstract":"Line current differential relays (LCDRs) depend on wide area communication networks (WANs) and global positioning systems (GPS), which is a major challenge since both WANs and GPS signals are vulnerable to cyberattacks. For instance, attackers may use false data injection (FDI) to tamper with the signals sent from one line terminal to the LCDR, causing the LCDR to make the incorrect decision. This wrong decision may disconnect a healthy line or fail to trip a faulty line, seriously harming the system. This paper proposes two techniques to (i) detect FDI attacks, (ii) distinguish between missed-tripping attacks and a healthy line, and (iv) ensure that the trip order is sent by the LCDR only when there is a real fault. In the first technique, after the LCDR is triggered, it evaluates the data received from the other terminal by using the local instantaneous voltage and current measurements. The second technique is based on sending a signal of an encrypted predefined value, which is only sent after the remote LCDR senses a fault. Manipulation of this signal is a sign of intrusion, which activates backup protection. Both techniques can be implemented in LCDRs to detect cyberattacks on LCDRs and ensure optimum dependability.","PeriodicalId":174878,"journal":{"name":"2022 23rd International Middle East Power Systems Conference (MEPCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130841005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-13DOI: 10.1109/MEPCON55441.2022.10021714
A. Omara, Adel H. Shamandy, A. Azmy
The adoption of electric vehicles (EVs) is steadily growing as a result of rising environmental fears and petrol prices. However, EVs operation only becomes completely ecologically friendly when the power they are using originates from a renewable energy source. This paper presents a design of a hybrid charging station that can be used for ac and dc plug-in EVs. The dc charger can charge two types of EVs batteries with 48V and 240V, while the ac charger has two outlets with line-line voltages of 220V and 380V for EVs with on-board charger (OBC). Three different types of energy sources to ensure fulltime operation all over the day and night are considered: Photovoltaic (PV) cells as the main energy source, battery storage system (BSS), and the electrical grid. Different operating modes are described in detail. An energy management system is proposed to control the power flow based on the operating mode. Several simulation results validating the effectiveness of the proposed design are presented.
{"title":"Design and Operation of a Hybrid Charging Station for Plug-in Electric Vehicles","authors":"A. Omara, Adel H. Shamandy, A. Azmy","doi":"10.1109/MEPCON55441.2022.10021714","DOIUrl":"https://doi.org/10.1109/MEPCON55441.2022.10021714","url":null,"abstract":"The adoption of electric vehicles (EVs) is steadily growing as a result of rising environmental fears and petrol prices. However, EVs operation only becomes completely ecologically friendly when the power they are using originates from a renewable energy source. This paper presents a design of a hybrid charging station that can be used for ac and dc plug-in EVs. The dc charger can charge two types of EVs batteries with 48V and 240V, while the ac charger has two outlets with line-line voltages of 220V and 380V for EVs with on-board charger (OBC). Three different types of energy sources to ensure fulltime operation all over the day and night are considered: Photovoltaic (PV) cells as the main energy source, battery storage system (BSS), and the electrical grid. Different operating modes are described in detail. An energy management system is proposed to control the power flow based on the operating mode. Several simulation results validating the effectiveness of the proposed design are presented.","PeriodicalId":174878,"journal":{"name":"2022 23rd International Middle East Power Systems Conference (MEPCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130425758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-13DOI: 10.1109/MEPCON55441.2022.10021817
Abd-El Fattah S. Hammad, Hossam A. Abd el-Ghany, A. Azmy
This paper investigates the effect of fault repairing periods on the estimation process of technical energy losses (TELs) in distribution networks with tie-switches. Comparisons between TELs calculations considering normal operation periods (NOP) only and those considering both NOP and repairing faults periods (RFP) are presented. Different repairing times (RTs) are assumed to highlight the impact of maintenance and /or repairing time on the estimation process with a wide range of fault cases. The IEEE 33-bus system with tie-switches is chosen as the test system in this paper. Load flow analysis (LF) of the case studies is implemented by ETAP program. Results are given for distribution networks with tie-switches including radial and ring schemes regarding the effect of different repairing and or maintenance time. The results assure the importance of utilizing tie switches to reduce the effect of faults repairing time on the estimation process of TELs.
{"title":"Estimation of Technical Losses in Distribution Networks with Tie Switches Considering Repairing Periods","authors":"Abd-El Fattah S. Hammad, Hossam A. Abd el-Ghany, A. Azmy","doi":"10.1109/MEPCON55441.2022.10021817","DOIUrl":"https://doi.org/10.1109/MEPCON55441.2022.10021817","url":null,"abstract":"This paper investigates the effect of fault repairing periods on the estimation process of technical energy losses (TELs) in distribution networks with tie-switches. Comparisons between TELs calculations considering normal operation periods (NOP) only and those considering both NOP and repairing faults periods (RFP) are presented. Different repairing times (RTs) are assumed to highlight the impact of maintenance and /or repairing time on the estimation process with a wide range of fault cases. The IEEE 33-bus system with tie-switches is chosen as the test system in this paper. Load flow analysis (LF) of the case studies is implemented by ETAP program. Results are given for distribution networks with tie-switches including radial and ring schemes regarding the effect of different repairing and or maintenance time. The results assure the importance of utilizing tie switches to reduce the effect of faults repairing time on the estimation process of TELs.","PeriodicalId":174878,"journal":{"name":"2022 23rd International Middle East Power Systems Conference (MEPCON)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131853548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-13DOI: 10.1109/MEPCON55441.2022.10021745
A. Yakout, Hossam Kotb, W. Sabry
In the current paper, a hybrid Tilt-Derivative Tilt-Integral (TD-TI) controller is added to the synchronous generator automatic voltage regulation (A VR) system to improve the rotor angle stability of a three-machine system and damp the power system oscillations. Moreover, the Sine Cosine algorithm (SCA), a relatively new robust optimization technique is used to tune the proposed controller parameters. The SCA based TD-TI controller results are presented in the form of time domain simulation using MATLAB. The proposed controller response is compared with the normal AVR excitation controller on the IEEE three-machine system. Simulation results show the effectiveness of the proposed controller in damping the oscillations of rotor speed and terminal voltage of the three machines when the system is subjected to three phase short circuit.
{"title":"Power Oscillation Damping using Sine Cosine Algorithm based Tilt-Derivative Tilt-Integral Automatic Voltage Regulator","authors":"A. Yakout, Hossam Kotb, W. Sabry","doi":"10.1109/MEPCON55441.2022.10021745","DOIUrl":"https://doi.org/10.1109/MEPCON55441.2022.10021745","url":null,"abstract":"In the current paper, a hybrid Tilt-Derivative Tilt-Integral (TD-TI) controller is added to the synchronous generator automatic voltage regulation (A VR) system to improve the rotor angle stability of a three-machine system and damp the power system oscillations. Moreover, the Sine Cosine algorithm (SCA), a relatively new robust optimization technique is used to tune the proposed controller parameters. The SCA based TD-TI controller results are presented in the form of time domain simulation using MATLAB. The proposed controller response is compared with the normal AVR excitation controller on the IEEE three-machine system. Simulation results show the effectiveness of the proposed controller in damping the oscillations of rotor speed and terminal voltage of the three machines when the system is subjected to three phase short circuit.","PeriodicalId":174878,"journal":{"name":"2022 23rd International Middle East Power Systems Conference (MEPCON)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133926838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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