Pub Date : 2019-05-31DOI: 10.15866/IRECON.V7I3.17327
Dina Zaki Rostom, H. Hasanien, Noha H. El Amary, A. Abdelaziz
Microgrids attain a significant role in electrical power systems due to their practical and economic benefits. A novel application of an adaptive Proportional plus Integral (PI) controller with the purpose of improving the microgrid performance is presented in this paper. The control strategy of the adaptive PI controller is based on Widrow-Hoff adaptation technique. The efficiency of the suggested controller is proved by comparing its outcomes with that obtained by utilizing Flower Pollination algorithm (FPA) which is used to fine tune the PI controller parameters of the inverter based microgrid. The utilized multi-objective optimization problem used by the FPA is created by the Response Surface Methodology (RSM). Simulation results are carried out using PSCAD/EMTDC environment to check the validity of the proposed control strategy. The simulation results are tested under various operating states such as 1) conversion of the system from grid connected to stand alone mode of operation, 2) subjecting the system to three line to ground fault in the autonomous mode, and 3) exposing the system to the load variability in the islanded mode.
{"title":"Adaptive PI Control Strategy for Microgrid Performance Enhancement","authors":"Dina Zaki Rostom, H. Hasanien, Noha H. El Amary, A. Abdelaziz","doi":"10.15866/IRECON.V7I3.17327","DOIUrl":"https://doi.org/10.15866/IRECON.V7I3.17327","url":null,"abstract":"Microgrids attain a significant role in electrical power systems due to their practical and economic benefits. A novel application of an adaptive Proportional plus Integral (PI) controller with the purpose of improving the microgrid performance is presented in this paper. The control strategy of the adaptive PI controller is based on Widrow-Hoff adaptation technique. The efficiency of the suggested controller is proved by comparing its outcomes with that obtained by utilizing Flower Pollination algorithm (FPA) which is used to fine tune the PI controller parameters of the inverter based microgrid. The utilized multi-objective optimization problem used by the FPA is created by the Response Surface Methodology (RSM). Simulation results are carried out using PSCAD/EMTDC environment to check the validity of the proposed control strategy. The simulation results are tested under various operating states such as 1) conversion of the system from grid connected to stand alone mode of operation, 2) subjecting the system to three line to ground fault in the autonomous mode, and 3) exposing the system to the load variability in the islanded mode.","PeriodicalId":37583,"journal":{"name":"International Journal on Energy Conversion","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43105116","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 : 2019-05-31DOI: 10.15866/IRECON.V7I3.17416
Minh Y Nguyen, T. H. Hoang, Q. V. Toan, Le M. Anh
This paper presents a new framework to analyze the penetration of distributed generation (DG) in distribution systems (DS) based on modified Monte Carlo simulation. The placement and capacity of DG are generated as random variables with probability density functions following the optimality principle of the system. The method of power flows analysis is employed to evaluate the economic and technical aspect of the network both with and without DG sources inside. The results in different scenarios are combined with weighted factors to form the performance indices. The proposed framework is testified in a practical 15 MVA, 22 kV, 48-bus DS in Thai Nguyen, Vietnam. The simulation result shows that many advantages can be achieved with DG such as lower power losses, smaller voltage deviation, over-load reduction, etc. The proposed framework can serve as a platform for DS planning with DG sources in practice.
{"title":"Analysis of the Penetration of Distributed Generation in Distribution Systems Based on Modified Monte Carlo Simulation","authors":"Minh Y Nguyen, T. H. Hoang, Q. V. Toan, Le M. Anh","doi":"10.15866/IRECON.V7I3.17416","DOIUrl":"https://doi.org/10.15866/IRECON.V7I3.17416","url":null,"abstract":"This paper presents a new framework to analyze the penetration of distributed generation (DG) in distribution systems (DS) based on modified Monte Carlo simulation. The placement and capacity of DG are generated as random variables with probability density functions following the optimality principle of the system. The method of power flows analysis is employed to evaluate the economic and technical aspect of the network both with and without DG sources inside. The results in different scenarios are combined with weighted factors to form the performance indices. The proposed framework is testified in a practical 15 MVA, 22 kV, 48-bus DS in Thai Nguyen, Vietnam. The simulation result shows that many advantages can be achieved with DG such as lower power losses, smaller voltage deviation, over-load reduction, etc. The proposed framework can serve as a platform for DS planning with DG sources in practice.","PeriodicalId":37583,"journal":{"name":"International Journal on Energy Conversion","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42470138","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 : 2019-05-31DOI: 10.15866/IRECON.V7I3.17403
Apoorva Srivastava, R. S. Bajpai
This paper analyses the performance comparison of maximum power point tracking (MPPT) algorithms for a wind energy conversion system using a model predictive control (MPC). Perturb & Observe (P&O) and Incremental Conductance (INC) that are the most commonly used maximum power point tracking (MPPT) methods due to their simple structure and facility to implement. However, both have the limitation in the effective tracking of maximum power point under unpredictable and fluctuating nature of wind turbine systems. In order to overcome the above limitations a model predictive control technique is proposed in order to enhance energy efficiency of wind turbine systems during rapidly changing wind conditions. MPC is an optimization method, it offers fast tracking, low power oscillations in steady state as encountered with the conventional methods. The proposed method uses variable predictive perturbation step size determined by Newton-Raphson method. Compared to traditional P&O and INC, the proposed strategy converges to maximum power point more rapidly and reduces the steady state power oscillations around maximum power point (MPP). The effectiveness of the control scheme is validated using MATLAB/SIMULINK simulation studies and through a scaled laboratory model using dSPACE DS1007 platform in order to verify the simulation results.
{"title":"An Efficient Maximum Power Extraction Algorithm for Wind Energy Conversion System Using Model Predictive Control","authors":"Apoorva Srivastava, R. S. Bajpai","doi":"10.15866/IRECON.V7I3.17403","DOIUrl":"https://doi.org/10.15866/IRECON.V7I3.17403","url":null,"abstract":"This paper analyses the performance comparison of maximum power point tracking (MPPT) algorithms for a wind energy conversion system using a model predictive control (MPC). Perturb & Observe (P&O) and Incremental Conductance (INC) that are the most commonly used maximum power point tracking (MPPT) methods due to their simple structure and facility to implement. However, both have the limitation in the effective tracking of maximum power point under unpredictable and fluctuating nature of wind turbine systems. In order to overcome the above limitations a model predictive control technique is proposed in order to enhance energy efficiency of wind turbine systems during rapidly changing wind conditions. MPC is an optimization method, it offers fast tracking, low power oscillations in steady state as encountered with the conventional methods. The proposed method uses variable predictive perturbation step size determined by Newton-Raphson method. Compared to traditional P&O and INC, the proposed strategy converges to maximum power point more rapidly and reduces the steady state power oscillations around maximum power point (MPP). The effectiveness of the control scheme is validated using MATLAB/SIMULINK simulation studies and through a scaled laboratory model using dSPACE DS1007 platform in order to verify the simulation results.","PeriodicalId":37583,"journal":{"name":"International Journal on Energy Conversion","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43841533","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 : 2019-05-31DOI: 10.15866/IRECON.V7I3.16187
A. Omar, H. Hasanien, A. Al‐Durra, Walid H. Abd El-Hameed
The results of photovoltaic systems simulations using power electronics devices are affected by PV models’ accuracy; examples of photovoltaic systems such simulations are: maximum power point tracking (MPPT) of the photovoltaic systems, transient and dynamic analysis of the photovoltaic systems, and micro grid systems working of micro grid systems. The photovoltaic mathematical models depict a nonlinear I-V characteristic covering unknown parameters due to the restricted information given by PV panel’s manufacturers of the photolytic panels. This paper investigates the use of Water Cycle Algorithm (WCA); it will be the using world rivers/streams cycles. This accurate observing is a new population-based meta-heuristic optimizer. Here, WCA is simulated in MATLAB environment and applied to both single-diode model (S.D.M) and double-diode model (D.D.M) as represented. Authenticity of these proposed photovoltaic systems a model is ascertained by the simulations of the outcomes, where these simulations are implemented under different environmental conditions. Outcomes are compared to experimental results by Kyocera KC200GT PV module. The effectiveness and efficiency of proposed mathematical models are established through comparing models absolute error with respect to experimental outcomes and that of other photovoltaic systems models. The WCA can therefore be used, based on its results in developing accurate PV models.
{"title":"Water Cycle Algorithm for Parameters Estimation of Solar Photovoltaic Model","authors":"A. Omar, H. Hasanien, A. Al‐Durra, Walid H. Abd El-Hameed","doi":"10.15866/IRECON.V7I3.16187","DOIUrl":"https://doi.org/10.15866/IRECON.V7I3.16187","url":null,"abstract":"The results of photovoltaic systems simulations using power electronics devices are affected by PV models’ accuracy; examples of photovoltaic systems such simulations are: maximum power point tracking (MPPT) of the photovoltaic systems, transient and dynamic analysis of the photovoltaic systems, and micro grid systems working of micro grid systems. The photovoltaic mathematical models depict a nonlinear I-V characteristic covering unknown parameters due to the restricted information given by PV panel’s manufacturers of the photolytic panels. This paper investigates the use of Water Cycle Algorithm (WCA); it will be the using world rivers/streams cycles. This accurate observing is a new population-based meta-heuristic optimizer. Here, WCA is simulated in MATLAB environment and applied to both single-diode model (S.D.M) and double-diode model (D.D.M) as represented. Authenticity of these proposed photovoltaic systems a model is ascertained by the simulations of the outcomes, where these simulations are implemented under different environmental conditions. Outcomes are compared to experimental results by Kyocera KC200GT PV module. The effectiveness and efficiency of proposed mathematical models are established through comparing models absolute error with respect to experimental outcomes and that of other photovoltaic systems models. The WCA can therefore be used, based on its results in developing accurate PV models.","PeriodicalId":37583,"journal":{"name":"International Journal on Energy Conversion","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67292641","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 : 2019-03-31DOI: 10.15866/IRECON.V7I2.17001
Khadija El Harouri, S. E. Hani, E. Elbouchikhi, M. Benbouzid, Hamza Mediouni
{"title":"Grid-Connected Plug-in Electric Vehicles Charging Stations Energy Management and Control","authors":"Khadija El Harouri, S. E. Hani, E. Elbouchikhi, M. Benbouzid, Hamza Mediouni","doi":"10.15866/IRECON.V7I2.17001","DOIUrl":"https://doi.org/10.15866/IRECON.V7I2.17001","url":null,"abstract":"","PeriodicalId":37583,"journal":{"name":"International Journal on Energy Conversion","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47650448","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 : 2019-03-31DOI: 10.15866/IRECON.V7I2.16586
E. F. Abbas
{"title":"Experimental Investigation of a Small Passive Solar System","authors":"E. F. Abbas","doi":"10.15866/IRECON.V7I2.16586","DOIUrl":"https://doi.org/10.15866/IRECON.V7I2.16586","url":null,"abstract":"","PeriodicalId":37583,"journal":{"name":"International Journal on Energy Conversion","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45673218","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 : 2019-03-31DOI: 10.15866/IRECON.V7I2.17703
E. Mashhour, S. M. Moghaddas-Tafreshi
{"title":"Three-Phase Distribution Power Flow Solution Considering Symmetrical and Unsymmetrical Three-Phase Voltage Control Mode of PV Nodes","authors":"E. Mashhour, S. M. Moghaddas-Tafreshi","doi":"10.15866/IRECON.V7I2.17703","DOIUrl":"https://doi.org/10.15866/IRECON.V7I2.17703","url":null,"abstract":"","PeriodicalId":37583,"journal":{"name":"International Journal on Energy Conversion","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46310213","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 : 2019-03-31DOI: 10.15866/IRECON.V7I2.16895
A. Omar, Ziad M. Ali, S. Aleem, E. Abou-El-Zahab, A. Sharaf
This paper presents a novel stabilization FACTS-based scheme that acts as a switched compensator for grid-connected wind energy systems. It is a member of a family of devices and switched dynamic voltage stabilization converters that were developed to ensure minimal loss of excitation, voltage stabilization, energy efficient utilization, power quality enhancement and harmonic distortion reduction in AC distribution grid networks. A novel-dual action distributed FACTS based–switched power filter compensator (SPFC) scheme is developed for efficient utilization of wind energy under varying wind conditions and major load excursions. A dynamic multi-level error-driven decoupled time de-scaled multi regulation control strategy is used to guarantee better power quality performance in terms of voltage enhancement and stabilization of the AC buses, improvement of power factor, and harmonic distortion reduction. The proposed SPFC was controlled using an inter-coupled weighted modified proportional-integral-derivative (WM-PID) controller. Cuckoo search (CS) optimization algorithm is employed to get the PID controller gains in terms of variations and excursions in wind speed and dynamic load excursions to reflect the performance of the compensator scheme. The effectiveness of the proposed SPFC with the multi-level control strategy has been assessed by time-domain simulations in Matlab/Simulink environment. The results obtained show the robustness of the proposed topology.
{"title":"A Dynamic Switched Compensation Scheme for Grid-Connected Wind Energy Systems Using Cuckoo Search Algorithm","authors":"A. Omar, Ziad M. Ali, S. Aleem, E. Abou-El-Zahab, A. Sharaf","doi":"10.15866/IRECON.V7I2.16895","DOIUrl":"https://doi.org/10.15866/IRECON.V7I2.16895","url":null,"abstract":"This paper presents a novel stabilization FACTS-based scheme that acts as a switched compensator for grid-connected wind energy systems. It is a member of a family of devices and switched dynamic voltage stabilization converters that were developed to ensure minimal loss of excitation, voltage stabilization, energy efficient utilization, power quality enhancement and harmonic distortion reduction in AC distribution grid networks. A novel-dual action distributed FACTS based–switched power filter compensator (SPFC) scheme is developed for efficient utilization of wind energy under varying wind conditions and major load excursions. A dynamic multi-level error-driven decoupled time de-scaled multi regulation control strategy is used to guarantee better power quality performance in terms of voltage enhancement and stabilization of the AC buses, improvement of power factor, and harmonic distortion reduction. The proposed SPFC was controlled using an inter-coupled weighted modified proportional-integral-derivative (WM-PID) controller. Cuckoo search (CS) optimization algorithm is employed to get the PID controller gains in terms of variations and excursions in wind speed and dynamic load excursions to reflect the performance of the compensator scheme. The effectiveness of the proposed SPFC with the multi-level control strategy has been assessed by time-domain simulations in Matlab/Simulink environment. The results obtained show the robustness of the proposed topology.","PeriodicalId":37583,"journal":{"name":"International Journal on Energy Conversion","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47710274","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 : 2019-01-31DOI: 10.15866/IRECON.V7I1.16160
A. Sandali, A. Chériti
{"title":"Maximum Power Characteristic Tracking: Definition and Adaptation to Various Power Electronics Converters","authors":"A. Sandali, A. Chériti","doi":"10.15866/IRECON.V7I1.16160","DOIUrl":"https://doi.org/10.15866/IRECON.V7I1.16160","url":null,"abstract":"","PeriodicalId":37583,"journal":{"name":"International Journal on Energy Conversion","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41548974","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 : 2019-01-31DOI: 10.15866/irecon.v7i1.16213
Arun Onlam, Daranpob Yodphet, R. Chatthaworn, C. Surawanitkun, A. Siritaratiwat, P. Khunkitti
{"title":"Power Loss Reduction in Small-Scale Electrical Distribution System Using Adaptive Shuffled Frog Leaping Algorithm","authors":"Arun Onlam, Daranpob Yodphet, R. Chatthaworn, C. Surawanitkun, A. Siritaratiwat, P. Khunkitti","doi":"10.15866/irecon.v7i1.16213","DOIUrl":"https://doi.org/10.15866/irecon.v7i1.16213","url":null,"abstract":"","PeriodicalId":37583,"journal":{"name":"International Journal on Energy Conversion","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47151312","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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