Pub Date : 2021-03-22DOI: 10.1109/SSD52085.2021.9429473
José Manuel Lozano Domínguez, F. Al-Tam, T. M. Sanguino, N. Correia
Cities are transforming into smart areas thanks to several key technologies involving artificial intelligence (AI), 5G or big data aimed at improving the lives of their inhabitants with new services (e.g., transport systems, including road safety). In this field, the paper describes how to improve vehicle detection through several machine learning techniques applied to smart crosswalks. As a main advantage, this approach avoids readjusting labels in classic fuzzy classifiers that typically depends on the system location and road conditions. To address this, various AI methods were evaluated with data taken from real traffic pertaining to roads in Spain and Portugal. The machine learning techniques were random forest (RF), extremely randomized trees (extra-tree), deep reinforcement learning (DRL), time series forecasting (TSF), multi-layer perceptron (MLP), k-nearest neighbor (KNN) and logistic regression (LR). The results were validated through a receiver operating characteristic (ROC) analysis, obtaining the best performance in RF with a true positive rate (TPR) of 96.82%, false positive rate (FPR) of 1.73% and accuracy (ACC) of 97.85%. This was followed by DRL and TSF, while MLP and LR presented the worst outcomes.
{"title":"Vehicle Detection System for Smart Crosswalks Using Sensors and Machine Learning","authors":"José Manuel Lozano Domínguez, F. Al-Tam, T. M. Sanguino, N. Correia","doi":"10.1109/SSD52085.2021.9429473","DOIUrl":"https://doi.org/10.1109/SSD52085.2021.9429473","url":null,"abstract":"Cities are transforming into smart areas thanks to several key technologies involving artificial intelligence (AI), 5G or big data aimed at improving the lives of their inhabitants with new services (e.g., transport systems, including road safety). In this field, the paper describes how to improve vehicle detection through several machine learning techniques applied to smart crosswalks. As a main advantage, this approach avoids readjusting labels in classic fuzzy classifiers that typically depends on the system location and road conditions. To address this, various AI methods were evaluated with data taken from real traffic pertaining to roads in Spain and Portugal. The machine learning techniques were random forest (RF), extremely randomized trees (extra-tree), deep reinforcement learning (DRL), time series forecasting (TSF), multi-layer perceptron (MLP), k-nearest neighbor (KNN) and logistic regression (LR). The results were validated through a receiver operating characteristic (ROC) analysis, obtaining the best performance in RF with a true positive rate (TPR) of 96.82%, false positive rate (FPR) of 1.73% and accuracy (ACC) of 97.85%. This was followed by DRL and TSF, while MLP and LR presented the worst outcomes.","PeriodicalId":6799,"journal":{"name":"2021 18th International Multi-Conference on Systems, Signals & Devices (SSD)","volume":"34 1","pages":"984-991"},"PeriodicalIF":0.0,"publicationDate":"2021-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77433621","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 : 2021-03-22DOI: 10.1109/SSD52085.2021.9429437
J. Ghaeb, Malek Alkayyali
In this work, a Particle Swarm Optimization (PSO) technique is proposed to determine the optimal firing angles of the Thyristor-Controlled Reactor (TCR) to regulate the voltage of the electrical power system. A 500 km-length electrical power system is considered. The transmission line is modeled by three pi-section networks each represents a distance of 500/3 km. The mathematical model of the electrical power system is derived and used by the PSO algorithm to find the required TCR firing angles for voltage regulation. Different test cases have been conducted to assess and validate the proposed PSO technique capabilities. The results have revealed the ability of the proposed PSO technique to regulate the load voltage efficiently to average load voltage change equals 0.271%.
{"title":"An Optimization Technique for Voltage Regulation in Electrical Power Systems","authors":"J. Ghaeb, Malek Alkayyali","doi":"10.1109/SSD52085.2021.9429437","DOIUrl":"https://doi.org/10.1109/SSD52085.2021.9429437","url":null,"abstract":"In this work, a Particle Swarm Optimization (PSO) technique is proposed to determine the optimal firing angles of the Thyristor-Controlled Reactor (TCR) to regulate the voltage of the electrical power system. A 500 km-length electrical power system is considered. The transmission line is modeled by three pi-section networks each represents a distance of 500/3 km. The mathematical model of the electrical power system is derived and used by the PSO algorithm to find the required TCR firing angles for voltage regulation. Different test cases have been conducted to assess and validate the proposed PSO technique capabilities. The results have revealed the ability of the proposed PSO technique to regulate the load voltage efficiently to average load voltage change equals 0.271%.","PeriodicalId":6799,"journal":{"name":"2021 18th International Multi-Conference on Systems, Signals & Devices (SSD)","volume":"84 2","pages":"934-941"},"PeriodicalIF":0.0,"publicationDate":"2021-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91467696","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 : 2021-03-22DOI: 10.1109/SSD52085.2021.9429311
Imen Haj Hamad, A. Chouchaine, H. Bouzaouache
This work presents an improved procedure for directly predicting air temperature in agricultural greenhouses to provide a quantitative assessment of high or low temperatures. The used dynamic model deals with the heat transfer during four days inside a greenhouse in Tunisia focusing on the season, the location, the structure of the greenhouse and obviously the weather conditions: wind speed, outside temperature, solar radiation, relative humidity…The results are obtained by experimental validation. The used greenhouse model shows the effectiveness of the procedure which has been successfully implemented using the MATLAB /Simulink environment.
{"title":"On Modeling Greenhouse Air-Temperature: an Experimental Validation","authors":"Imen Haj Hamad, A. Chouchaine, H. Bouzaouache","doi":"10.1109/SSD52085.2021.9429311","DOIUrl":"https://doi.org/10.1109/SSD52085.2021.9429311","url":null,"abstract":"This work presents an improved procedure for directly predicting air temperature in agricultural greenhouses to provide a quantitative assessment of high or low temperatures. The used dynamic model deals with the heat transfer during four days inside a greenhouse in Tunisia focusing on the season, the location, the structure of the greenhouse and obviously the weather conditions: wind speed, outside temperature, solar radiation, relative humidity…The results are obtained by experimental validation. The used greenhouse model shows the effectiveness of the procedure which has been successfully implemented using the MATLAB /Simulink environment.","PeriodicalId":6799,"journal":{"name":"2021 18th International Multi-Conference on Systems, Signals & Devices (SSD)","volume":"24 1","pages":"353-358"},"PeriodicalIF":0.0,"publicationDate":"2021-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75116749","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 : 2021-03-22DOI: 10.1109/SSD52085.2021.9429514
Malak Fora, B. B. Atitallah, K. Lweesy, O. Kanoun
Hand gesture recognition presents one of the most important aspects for human machine interface (HMI) development, and it has a wide spectrum of applications including sign language recognition for deaf and dumb people. Herein, force myography signals (FMG) are extracted using eight nanocomposite CNT/PDMS pressure sensors simultaneously. Data are collected from eight healthy volunteers for American sign language digits 0–9. Two sets of features are extracted, the first one is composed of mean, standard deviation and rms values for the raw FMG data for all 8 sensors individually. The second set is composed of the 2-norm of the raw FMG signal and three proportional features, where the FMG signals are studied with respect to the reference rest signal. Classification is performed using each of the seven individual features as well as the combination of features in each set. The combination of features in the second set gives better testing accuracy of 95%, 91.9% for $mathrm{k}=2, mathrm{k}=3$ using KNN classifier, respectively.
{"title":"Hand Gesture Recognition Based on Force Myography Measurements using KNN Classifier","authors":"Malak Fora, B. B. Atitallah, K. Lweesy, O. Kanoun","doi":"10.1109/SSD52085.2021.9429514","DOIUrl":"https://doi.org/10.1109/SSD52085.2021.9429514","url":null,"abstract":"Hand gesture recognition presents one of the most important aspects for human machine interface (HMI) development, and it has a wide spectrum of applications including sign language recognition for deaf and dumb people. Herein, force myography signals (FMG) are extracted using eight nanocomposite CNT/PDMS pressure sensors simultaneously. Data are collected from eight healthy volunteers for American sign language digits 0–9. Two sets of features are extracted, the first one is composed of mean, standard deviation and rms values for the raw FMG data for all 8 sensors individually. The second set is composed of the 2-norm of the raw FMG signal and three proportional features, where the FMG signals are studied with respect to the reference rest signal. Classification is performed using each of the seven individual features as well as the combination of features in each set. The combination of features in the second set gives better testing accuracy of 95%, 91.9% for $mathrm{k}=2, mathrm{k}=3$ using KNN classifier, respectively.","PeriodicalId":6799,"journal":{"name":"2021 18th International Multi-Conference on Systems, Signals & Devices (SSD)","volume":"6 1","pages":"960-964"},"PeriodicalIF":0.0,"publicationDate":"2021-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74402103","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 : 2021-03-22DOI: 10.1109/SSD52085.2021.9429424
Ahmed Samawi Alkafaji, Ali Abed aljabar Al-Samawi, H. Trabelsi
To illustrate the importance of renewable energy generation around the world. Renewable technology contributes to a remarkable amount of electricity to the grid. Renewable energy sources are the prime-movers of the microgrid. A microgrid is a small, parallel network of distributed generation (DG) power systems. In this paper, the hybrid energy sources resulting from nature and how to obtain the electrical energy from them, directly or indirectly, will be described, and the challenges facing hybrid power systems, in addition, the most important of which are to build appropriate control systems for each application. Fast response and support it by two or more sustainable energy sources increase the reliability of power production combined with (HRES). This study comprehensively reviews ESS technologies types, ESS structures, classifications, and ESS merits and demerits in MG applications.
{"title":"Hybrid Energy Storage Review for Renewable Energy System Technologies and Applications","authors":"Ahmed Samawi Alkafaji, Ali Abed aljabar Al-Samawi, H. Trabelsi","doi":"10.1109/SSD52085.2021.9429424","DOIUrl":"https://doi.org/10.1109/SSD52085.2021.9429424","url":null,"abstract":"To illustrate the importance of renewable energy generation around the world. Renewable technology contributes to a remarkable amount of electricity to the grid. Renewable energy sources are the prime-movers of the microgrid. A microgrid is a small, parallel network of distributed generation (DG) power systems. In this paper, the hybrid energy sources resulting from nature and how to obtain the electrical energy from them, directly or indirectly, will be described, and the challenges facing hybrid power systems, in addition, the most important of which are to build appropriate control systems for each application. Fast response and support it by two or more sustainable energy sources increase the reliability of power production combined with (HRES). This study comprehensively reviews ESS technologies types, ESS structures, classifications, and ESS merits and demerits in MG applications.","PeriodicalId":6799,"journal":{"name":"2021 18th International Multi-Conference on Systems, Signals & Devices (SSD)","volume":"163 1","pages":"1059-1067"},"PeriodicalIF":0.0,"publicationDate":"2021-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74106900","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 : 2021-03-22DOI: 10.1109/SSD52085.2021.9429352
Sana Bembli, N. K. Haddad, S. Belghith
This paper deals with a stability study and a robustness analysis of an exoskeleton- upper limb system, used for rehabilitation. The considered system is a robot with two degrees of freedom controlled by a Model Free Terminal Sliding Mode algorithm. The objective is to control the flexion/extension movement of the shoulder and the elbow in presence of uncertainties and disturbances. The dynamic model of the system was presented. An Input-to-State Stability study is realized to demonstrate the stability of the system. A robustness analysis using Monte Carlo method is developed. Simulation results are provided to prove the performances and the effectiveness of the Model Free Terminal Sliding mode algorithm and the stability of the system face to disturbances and uncertainties.
{"title":"Stability study and robustness analysis of an exoskeleton-upper limb system","authors":"Sana Bembli, N. K. Haddad, S. Belghith","doi":"10.1109/SSD52085.2021.9429352","DOIUrl":"https://doi.org/10.1109/SSD52085.2021.9429352","url":null,"abstract":"This paper deals with a stability study and a robustness analysis of an exoskeleton- upper limb system, used for rehabilitation. The considered system is a robot with two degrees of freedom controlled by a Model Free Terminal Sliding Mode algorithm. The objective is to control the flexion/extension movement of the shoulder and the elbow in presence of uncertainties and disturbances. The dynamic model of the system was presented. An Input-to-State Stability study is realized to demonstrate the stability of the system. A robustness analysis using Monte Carlo method is developed. Simulation results are provided to prove the performances and the effectiveness of the Model Free Terminal Sliding mode algorithm and the stability of the system face to disturbances and uncertainties.","PeriodicalId":6799,"journal":{"name":"2021 18th International Multi-Conference on Systems, Signals & Devices (SSD)","volume":"1 1","pages":"147-153"},"PeriodicalIF":0.0,"publicationDate":"2021-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76225594","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 : 2021-03-22DOI: 10.1109/SSD52085.2021.9429326
A. Oueslati, Aymen Hlali, H. Zairi
In this paper, a novel design of a biosensor based on Split-Ring Resonator (SRR) is developed for cancer cells detection in the L/C frequency bands (1–8 GHz). A comparative investigation of classic and proposed structures has been developed to demonstrate the effectiveness of the proposed structure. The simulation results show that the proposed structure achieves narrow resonance with low insertion loss, while the Q-factor increases from 1.96 to 2.47.
{"title":"Modeling of a Metamaterial Biosensor Based on Split Ring Resonators for Cancer Cells Detection","authors":"A. Oueslati, Aymen Hlali, H. Zairi","doi":"10.1109/SSD52085.2021.9429326","DOIUrl":"https://doi.org/10.1109/SSD52085.2021.9429326","url":null,"abstract":"In this paper, a novel design of a biosensor based on Split-Ring Resonator (SRR) is developed for cancer cells detection in the L/C frequency bands (1–8 GHz). A comparative investigation of classic and proposed structures has been developed to demonstrate the effectiveness of the proposed structure. The simulation results show that the proposed structure achieves narrow resonance with low insertion loss, while the Q-factor increases from 1.96 to 2.47.","PeriodicalId":6799,"journal":{"name":"2021 18th International Multi-Conference on Systems, Signals & Devices (SSD)","volume":"22 1","pages":"392-396"},"PeriodicalIF":0.0,"publicationDate":"2021-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76599184","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 : 2021-03-22DOI: 10.1109/SSD52085.2021.9429439
Wafa Znegui, H. Gritli, S. Belghith
In this paper, we introduce a control approach using a quadratic polynomial expression of the controlled Poincaré Map to actively stabilize the passive walking motion of the two-degree-of-freedom compass-gait biped walker. The passive gait cycle of the bipedal walker is depicted for a given fixed point. The control of the passive gaits involves firstly the reconstruction of the nonlinear complex dynamics describing the passive bipedal walking into an amendable linear system around the period-1 limit cycle. It involves secondly the determination of the quadratic polynomial expression of the nonlinear controlled Poincaré Map, and finally the identification of its period-1 fixed point. Successively, to stabilize such fixed point, we develop the linearized Poincaré Map, which will be explored to design the feedback gain of the control law. The control problem is cast then into a convex optimization involving a linear matrix inequality (LMI) by maximizing the bound on the nonlinear term in the Poincaré map. Simulation outputs illustrate the efficiency of the adopted LMI-based optimization method in the control of the passive motion of the compass-gait walker.
{"title":"Control of the Compass-Gait Walker Using an Enhanced Poincaré Map and via LMI-Based Optimization","authors":"Wafa Znegui, H. Gritli, S. Belghith","doi":"10.1109/SSD52085.2021.9429439","DOIUrl":"https://doi.org/10.1109/SSD52085.2021.9429439","url":null,"abstract":"In this paper, we introduce a control approach using a quadratic polynomial expression of the controlled Poincaré Map to actively stabilize the passive walking motion of the two-degree-of-freedom compass-gait biped walker. The passive gait cycle of the bipedal walker is depicted for a given fixed point. The control of the passive gaits involves firstly the reconstruction of the nonlinear complex dynamics describing the passive bipedal walking into an amendable linear system around the period-1 limit cycle. It involves secondly the determination of the quadratic polynomial expression of the nonlinear controlled Poincaré Map, and finally the identification of its period-1 fixed point. Successively, to stabilize such fixed point, we develop the linearized Poincaré Map, which will be explored to design the feedback gain of the control law. The control problem is cast then into a convex optimization involving a linear matrix inequality (LMI) by maximizing the bound on the nonlinear term in the Poincaré map. Simulation outputs illustrate the efficiency of the adopted LMI-based optimization method in the control of the passive motion of the compass-gait walker.","PeriodicalId":6799,"journal":{"name":"2021 18th International Multi-Conference on Systems, Signals & Devices (SSD)","volume":"32 1","pages":"172-178"},"PeriodicalIF":0.0,"publicationDate":"2021-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74242839","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 : 2021-03-22DOI: 10.1109/SSD52085.2021.9429356
Abosalah ElMehdi, Ali Ben-Ashour
The more common and economic way for increasing the power transfer capability of a transmission line is by installing capacitor banks that are connected in series with those lines. In such case, the transmission line is called a series compensated line. In general, all of electric components in AC power networks should have their own protection schemes, for instance the transmission lines are protected using the line current differential scheme or the communication aided distance scheme as a primary protection scheme, and in addition a conventional distance scheme (Modified impedance or Quadrilateral protective element) is used as a backup protection. So, installing capacitor banks in series with such lines will raise new challenges to the existent protection scheme of that line. This paper addresses these challenges when a series compensated transmission system needs to be protected from the AC faults or severed disturbances. Where, the most common challenges in series compensated transmission systems are: voltage inversion, current inversion, and sub-harmonic frequency oscillations. A chosen series compensated transmission system will be used as a model for performing this research study, and simulated results will be shown for this work. Finally, based on protection engineer point view the recommendations of the relay settings will be discussed to overcome most of these raised challenges in protecting the series compensated transmission system.
{"title":"The Challenges in a Case of Protecting a Series Compensated Transmission Line","authors":"Abosalah ElMehdi, Ali Ben-Ashour","doi":"10.1109/SSD52085.2021.9429356","DOIUrl":"https://doi.org/10.1109/SSD52085.2021.9429356","url":null,"abstract":"The more common and economic way for increasing the power transfer capability of a transmission line is by installing capacitor banks that are connected in series with those lines. In such case, the transmission line is called a series compensated line. In general, all of electric components in AC power networks should have their own protection schemes, for instance the transmission lines are protected using the line current differential scheme or the communication aided distance scheme as a primary protection scheme, and in addition a conventional distance scheme (Modified impedance or Quadrilateral protective element) is used as a backup protection. So, installing capacitor banks in series with such lines will raise new challenges to the existent protection scheme of that line. This paper addresses these challenges when a series compensated transmission system needs to be protected from the AC faults or severed disturbances. Where, the most common challenges in series compensated transmission systems are: voltage inversion, current inversion, and sub-harmonic frequency oscillations. A chosen series compensated transmission system will be used as a model for performing this research study, and simulated results will be shown for this work. Finally, based on protection engineer point view the recommendations of the relay settings will be discussed to overcome most of these raised challenges in protecting the series compensated transmission system.","PeriodicalId":6799,"journal":{"name":"2021 18th International Multi-Conference on Systems, Signals & Devices (SSD)","volume":"9 1","pages":"699-704"},"PeriodicalIF":0.0,"publicationDate":"2021-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76557409","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 : 2021-03-22DOI: 10.1109/SSD52085.2021.9429387
Fatiha Habbi, Nour El Houda Gabour, M. Bounekhla, E. Boudissa
In this paper, Nelder-Mead simplex algorithm (NMA) is proposed to tune the optimal parameters of a proportional integral (PI) controller for the output voltage regulation of synchronous generator through different loading conditions. The model of the SG is related to diverse loads in two ways. Firstly, each load is related separately and secondly the SG loads change through the operation in order to guarantee the robustness of controller for large load deviations. In addition, parameters of the PI controller are obtained by minimization of the quadratic output error between the reference voltage and the terminal voltage of the generator calculated from the adopted model at the same time. Simulation results obtained by MATLAB and Simulink are investigated for output voltage regulation of SG without any controller at first, then with PI controller. In order to evaluate the performance of the NMA-PI controller, the results are compared with the Hooke and Jeeves (H&J) method. The comparison shows that the NMA tuned PI controller has better control performances versus the (H&J) method.
本文采用Nelder-Mead单纯形算法(NMA)对比例积分(PI)控制器在不同负载条件下的最优参数进行整定，实现同步发电机输出电压的调节。SG的模型与不同荷载有两种关系。首先，每个负载是单独关联的，其次，SG负载随着运行而变化，以保证控制器对大负载偏差的鲁棒性。此外，PI控制器的参数是通过最小化参考电压与发电机终端电压之间的二次输出误差来获得的。首先利用MATLAB和Simulink对无控制器的SG输出电压调节进行了仿真研究，然后采用PI控制器对SG输出电压进行了调节。为了评价NMA-PI控制器的性能，将结果与Hooke and Jeeves (H&J)方法进行了比较。比较表明，NMA调谐PI控制器比(H&J)方法具有更好的控制性能。
{"title":"Output voltage control of synchronous generator using Nelder –Mead algorithm based PI controller","authors":"Fatiha Habbi, Nour El Houda Gabour, M. Bounekhla, E. Boudissa","doi":"10.1109/SSD52085.2021.9429387","DOIUrl":"https://doi.org/10.1109/SSD52085.2021.9429387","url":null,"abstract":"In this paper, Nelder-Mead simplex algorithm (NMA) is proposed to tune the optimal parameters of a proportional integral (PI) controller for the output voltage regulation of synchronous generator through different loading conditions. The model of the SG is related to diverse loads in two ways. Firstly, each load is related separately and secondly the SG loads change through the operation in order to guarantee the robustness of controller for large load deviations. In addition, parameters of the PI controller are obtained by minimization of the quadratic output error between the reference voltage and the terminal voltage of the generator calculated from the adopted model at the same time. Simulation results obtained by MATLAB and Simulink are investigated for output voltage regulation of SG without any controller at first, then with PI controller. In order to evaluate the performance of the NMA-PI controller, the results are compared with the Hooke and Jeeves (H&J) method. The comparison shows that the NMA tuned PI controller has better control performances versus the (H&J) method.","PeriodicalId":6799,"journal":{"name":"2021 18th International Multi-Conference on Systems, Signals & Devices (SSD)","volume":"150 1","pages":"365-374"},"PeriodicalIF":0.0,"publicationDate":"2021-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75769049","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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