Pub Date : 2023-11-06DOI: 10.1109/OJIES.2023.3325101
Nabil Karania;Mohamad Alaaeddin AlalI;Stefano Di Gennaro;Jean-Pierre Barbot
This article presents a free-harmonic ac/dc/ac converter structure using a novel modulation approach for asymmetrical cascade H-bridge multilevel inverter and, conventional rectifiers combined with a shunt active filter, for grid integration. The novel approach SMT-SHE combines two modulation techniques: the staircase modulation technique (SMT); and the selective harmonics elimination (SHE). SMT-SHE approach achieves a sinusoidal-like output stepping voltage with variable output voltage amplitude and free of wideband or/and specific harmonics to fulfill the sensitive loads’ specifications; by determining the appropriate SHE switching angles. The precalculated switching angles are optimized to minimize the number of H-bridge modules and lower the dc capacitor rating. Furthermore, a restriction on the switching angles is proposed to prevent the appearance of undesired harmonics (zeros, even) and, consequently, overcome the limitation of the SHE algorithm applicability. Finally, a real case study in the textile factory is conducted, using real measurements provided by power quality analyzer measuring devices, to validate the proposed ac/dc/ac converter supplying a sensitive load of 50 kVA, given by an asynchronous motor drive.
{"title":"Developed AC/DC/AC Converter Structure Based on Shunt Active Filter and Advanced Modulation Approach for Asymmetrical Cascade H-Bridge Multilevel Inverters","authors":"Nabil Karania;Mohamad Alaaeddin AlalI;Stefano Di Gennaro;Jean-Pierre Barbot","doi":"10.1109/OJIES.2023.3325101","DOIUrl":"10.1109/OJIES.2023.3325101","url":null,"abstract":"This article presents a free-harmonic ac/dc/ac converter structure using a novel modulation approach for asymmetrical cascade H-bridge multilevel inverter and, conventional rectifiers combined with a shunt active filter, for grid integration. The novel approach SMT-SHE combines two modulation techniques: the staircase modulation technique (SMT); and the selective harmonics elimination (SHE). SMT-SHE approach achieves a sinusoidal-like output stepping voltage with variable output voltage amplitude and free of wideband or/and specific harmonics to fulfill the sensitive loads’ specifications; by determining the appropriate SHE switching angles. The precalculated switching angles are optimized to minimize the number of H-bridge modules and lower the dc capacitor rating. Furthermore, a restriction on the switching angles is proposed to prevent the appearance of undesired harmonics (zeros, even) and, consequently, overcome the limitation of the SHE algorithm applicability. Finally, a real case study in the textile factory is conducted, using real measurements provided by power quality analyzer measuring devices, to validate the proposed ac/dc/ac converter supplying a sensitive load of 50 kVA, given by an asynchronous motor drive.","PeriodicalId":52675,"journal":{"name":"IEEE Open Journal of the Industrial Electronics Society","volume":"4 ","pages":"583-602"},"PeriodicalIF":8.5,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10308861","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135501178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
LoRaWAN is widely used in information monitoring under star topology. However, for linear topology applications, the LoRaWAN protocol requires the introduction of a large number of gateways, which will lead to information asymmetry, energy waste, and low network utilization. An energy-saving LoRa linear network system with adaptive transmission parameter is proposed. LoRa multihop technology is used for communication between nodes in the system, and narrowband Internet of Things module is used to the communicate with cloud platform. The adaptive transmission parameter mechanism is adopted in the system, which improves the adaptability of the linear network to changes in link channel conditions and reduces unnecessary energy consumption. At the same time, the flexibility and robustness of self-organizing networks are enhanced. In addition, optimized duty cycle strategies are employed to further reduce the operating power consumption. After LoRaSim simulation experiments, the results show that in the changing radio channel environment, the adaptive transmission parameter mechanism could achieve a dynamic balance between data extraction rate and energy consumption. After field tests, the results show that the system not only operates stably, but also could reduce the operating energy consumption of the LoRa linear network. The system proposed in this article is suitable for linear topological structure scenes such as river hydrological monitoring, oil pipeline monitoring, and long-distance railway monitoring.
{"title":"An Energy-Saving LoRa Linear Network System With Adaptive Transmission Parameter","authors":"Hao Wang;Shanshan Lv;Yang Han;Xihai Zhang;Yu Zhang;Wenbin Dong;Jianxin Liao;Hongwei Luan","doi":"10.1109/OJIES.2023.3329021","DOIUrl":"https://doi.org/10.1109/OJIES.2023.3329021","url":null,"abstract":"LoRaWAN is widely used in information monitoring under star topology. However, for linear topology applications, the LoRaWAN protocol requires the introduction of a large number of gateways, which will lead to information asymmetry, energy waste, and low network utilization. An energy-saving LoRa linear network system with adaptive transmission parameter is proposed. LoRa multihop technology is used for communication between nodes in the system, and narrowband Internet of Things module is used to the communicate with cloud platform. The adaptive transmission parameter mechanism is adopted in the system, which improves the adaptability of the linear network to changes in link channel conditions and reduces unnecessary energy consumption. At the same time, the flexibility and robustness of self-organizing networks are enhanced. In addition, optimized duty cycle strategies are employed to further reduce the operating power consumption. After LoRaSim simulation experiments, the results show that in the changing radio channel environment, the adaptive transmission parameter mechanism could achieve a dynamic balance between data extraction rate and energy consumption. After field tests, the results show that the system not only operates stably, but also could reduce the operating energy consumption of the LoRa linear network. The system proposed in this article is suitable for linear topological structure scenes such as river hydrological monitoring, oil pipeline monitoring, and long-distance railway monitoring.","PeriodicalId":52675,"journal":{"name":"IEEE Open Journal of the Industrial Electronics Society","volume":"4 ","pages":"476-485"},"PeriodicalIF":8.5,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10302374","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"109157752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This work presents a general framework for developing a multiparameter 1-D chaotic system for uniform and robust chaotic operation across the parameter space. This is important for diverse practical applications where parameter disturbance may cause degradation or even complete disappearance of chaotic properties. The wide uninterrupted chaotic range and improved chaotic properties are demonstrated with the aid of stability analysis, bifurcation diagram, Lyapunov exponent (LE), Kolmogorov entropy, Shannon entropy, and correlation coefficient. We also demonstrate the proposed system's amenability to cascading for further performance improvement. We introduce an efficient field-programmable gate array-based implementation and validate its chaotic properties using comparison between simulation and experimental results. Cascaded normalized linearly-combined chaotic system (NLCS) exhibits average LE, chaotic ratio, and chaotic parameter space of 1.364, 100%, and $1.1times 10^{12}$, respectively, for 10-bit parameter values. We provide a thorough comparison of our system with prior works both in terms of performance and hardware cost. We also introduce a simple extension scheme to build 2-D robust, hyperchaotic NLCS maps. We present a novel reconfigurable multiparameter pseudorandom number generator and validate its randomness using two standard statistical tests, namely, National Institute of Standards and Technology SP 800-22 and FIPS PUB 140-2. Finally, we outline six potential applications where NLCS will be useful.
{"title":"Normalized Linearly-Combined Chaotic System: Design, Analysis, Implementation, and Application","authors":"Md Sakib Hasan;Anurag Dhungel;Partha Sarathi Paul;Maisha Sadia;Md Razuan Hossain","doi":"10.1109/OJIES.2023.3328497","DOIUrl":"https://doi.org/10.1109/OJIES.2023.3328497","url":null,"abstract":"This work presents a general framework for developing a multiparameter 1-D chaotic system for uniform and robust chaotic operation across the parameter space. This is important for diverse practical applications where parameter disturbance may cause degradation or even complete disappearance of chaotic properties. The wide uninterrupted chaotic range and improved chaotic properties are demonstrated with the aid of stability analysis, bifurcation diagram, Lyapunov exponent (LE), Kolmogorov entropy, Shannon entropy, and correlation coefficient. We also demonstrate the proposed system's amenability to cascading for further performance improvement. We introduce an efficient field-programmable gate array-based implementation and validate its chaotic properties using comparison between simulation and experimental results. Cascaded normalized linearly-combined chaotic system (NLCS) exhibits average LE, chaotic ratio, and chaotic parameter space of 1.364, 100%, and $1.1times 10^{12}$, respectively, for 10-bit parameter values. We provide a thorough comparison of our system with prior works both in terms of performance and hardware cost. We also introduce a simple extension scheme to build 2-D robust, hyperchaotic NLCS maps. We present a novel reconfigurable multiparameter pseudorandom number generator and validate its randomness using two standard statistical tests, namely, National Institute of Standards and Technology SP 800-22 and FIPS PUB 140-2. Finally, we outline six potential applications where NLCS will be useful.","PeriodicalId":52675,"journal":{"name":"IEEE Open Journal of the Industrial Electronics Society","volume":"4 ","pages":"486-505"},"PeriodicalIF":8.5,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10301682","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"109157753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-20DOI: 10.1109/OJIES.2023.3326380
Daniel A. Philipps;Dimosthenis Peftitsis
Active gate drivers (AGDs) enhance the controllability and monitoring of switching devices, especially for fast switching silicon carbide (SiC) power metal–oxide–semiconductor field-effect transistors ( mosfet s). To support information flow between gate driver, converter, and grid control units, high-performance digital infrastructure is required. This article proposes a practical strategy of assessing the benefits of using wireless communication technologies (WCTs) in power electronics systems (PESs) employing AGDs. First, information transmission routes (ITRs) are identified and located within a PES. Second, an ITR taxonomy is proposed, classifying ITRs and describing both application scenarios and requirements for every class. After presenting general advantages of WCTs over wired alternatives, seven specific WCTs are individually characterized. Subsequently, the benefits of using WCTs are evaluated for each ITR class, resulting in a specific recommendation for or against the use of WCTs, and at least one appropriate WCT for each ITR. Experimental results demonstrate that the wireless control of AGDs for SiC power mosfet s is feasible using Bluetooth low energy. It is shown that an exemplary AGD can be effectively controlled with an information transmission delay of less than 45 ms, which is sufficient for the intended target applications.
{"title":"Wireless Control of Active Gate Drivers for Silicon Carbide Power MOSFETs","authors":"Daniel A. Philipps;Dimosthenis Peftitsis","doi":"10.1109/OJIES.2023.3326380","DOIUrl":"10.1109/OJIES.2023.3326380","url":null,"abstract":"Active gate drivers (AGDs) enhance the controllability and monitoring of switching devices, especially for fast switching silicon carbide (SiC) power metal–oxide–semiconductor field-effect transistors (\u0000<sc>mosfet</small>\u0000s). To support information flow between gate driver, converter, and grid control units, high-performance digital infrastructure is required. This article proposes a practical strategy of assessing the benefits of using wireless communication technologies (WCTs) in power electronics systems (PESs) employing AGDs. First, information transmission routes (ITRs) are identified and located within a PES. Second, an ITR taxonomy is proposed, classifying ITRs and describing both application scenarios and requirements for every class. After presenting general advantages of WCTs over wired alternatives, seven specific WCTs are individually characterized. Subsequently, the benefits of using WCTs are evaluated for each ITR class, resulting in a specific recommendation for or against the use of WCTs, and at least one appropriate WCT for each ITR. Experimental results demonstrate that the wireless control of AGDs for SiC power \u0000<sc>mosfet</small>\u0000s is feasible using Bluetooth low energy. It is shown that an exemplary AGD can be effectively controlled with an information transmission delay of less than 45 ms, which is sufficient for the intended target applications.","PeriodicalId":52675,"journal":{"name":"IEEE Open Journal of the Industrial Electronics Society","volume":"4 ","pages":"519-533"},"PeriodicalIF":8.5,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10288413","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135103425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-18DOI: 10.1109/OJIES.2023.3325440
Mandarapu Srikanth;Y. V. Pavan Kumar;Mohammad Amir;Sukumar Mishra;Atif Iqbal
In conventional power systems, stability is ensured successfully because of large synchronous generators, where, during transient conditions, the inertia and dynamics of the synchronous generators help to retain stability. On the contrary, inverter-interfaced distributed energy resources suffer from maintaining stability because of their quick dynamics (opposite to the concept of inertia). Therefore, there exists a tradeoff between response and stability aspects and this is referred to as transient performance problem in microgrids. Conventionally, this problem is addressed from the controller side by increasing its bandwidth thereby leading to better disturbance rejection and immunity against parameter changes. Since the classification of the disturbances (as small or large) is not straightforward and uncertain, an increase in the controller's bandwidth beyond a certain limit is not possible. Therefore, it is understood that the transient performance improvement cannot be achieved from the controller alone. Hence, the chances of improving performance from other approaches in the case of grid-connected mode and advanced control strategies for the controller in the case of islanded mode need to be investigated. With this intent, a comprehensive investigation of state-of-the-art approaches and methods to improve transient performance in microgrids is carried out in this article. This work is carried out in three stages. Initially, it explores various technical challenges that are involved and possible approaches to address these challenges. Next, a critical review of each approach is carried out based on their philosophy to improve transient performance. Furthermore, a comparative analysis that projects the scope of each approach is elucidated. Finally, some future research directions are proposed to enhance the effectiveness of key approaches.
{"title":"Improvement of Transient Performance in Microgrids: Comprehensive Review on Approaches and Methods for Converter Control and Route of Grid Stability","authors":"Mandarapu Srikanth;Y. V. Pavan Kumar;Mohammad Amir;Sukumar Mishra;Atif Iqbal","doi":"10.1109/OJIES.2023.3325440","DOIUrl":"10.1109/OJIES.2023.3325440","url":null,"abstract":"In conventional power systems, stability is ensured successfully because of large synchronous generators, where, during transient conditions, the inertia and dynamics of the synchronous generators help to retain stability. On the contrary, inverter-interfaced distributed energy resources suffer from maintaining stability because of their quick dynamics (opposite to the concept of inertia). Therefore, there exists a tradeoff between response and stability aspects and this is referred to as transient performance problem in microgrids. Conventionally, this problem is addressed from the controller side by increasing its bandwidth thereby leading to better disturbance rejection and immunity against parameter changes. Since the classification of the disturbances (as small or large) is not straightforward and uncertain, an increase in the controller's bandwidth beyond a certain limit is not possible. Therefore, it is understood that the transient performance improvement cannot be achieved from the controller alone. Hence, the chances of improving performance from other approaches in the case of grid-connected mode and advanced control strategies for the controller in the case of islanded mode need to be investigated. With this intent, a comprehensive investigation of state-of-the-art approaches and methods to improve transient performance in microgrids is carried out in this article. This work is carried out in three stages. Initially, it explores various technical challenges that are involved and possible approaches to address these challenges. Next, a critical review of each approach is carried out based on their philosophy to improve transient performance. Furthermore, a comparative analysis that projects the scope of each approach is elucidated. Finally, some future research directions are proposed to enhance the effectiveness of key approaches.","PeriodicalId":52675,"journal":{"name":"IEEE Open Journal of the Industrial Electronics Society","volume":"4 ","pages":"534-572"},"PeriodicalIF":8.5,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10287589","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135009200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Predictive maintenance (PdM) has become an important industrial feature. Existing methods mainly focus on remaining useful life (RUL) regression or anomaly detection to achieve PdM in a given application. Those approaches assume monotonic degradation processes leading to a single catastrophic failure at the system's end of lifetime. In contrast, much more complex degradation processes can be found in real-world applications, which are characterized by effects like self-healing or noncatastrophic anomalies. A important example of devices with complex degradation are electromechanical relays. As established PdM solutions failed when applied to a real-world relays degradation data set, the maintenance algorithm for unlabeled data (MAUD) is presented to detect signs of wear and enable a service in time. In detail, MAUD is based on an artificial neural network (ANN), which is trained semisupervised. Experiments with measurement data from 546 relays show that MAUD is superior to various existing methods: The static B10 threshold, which represents the state of the art in relay maintenance, is surpassed by a 17.07 p.p. increase in utilization while reducing failures by 6.42 p.p. Methods based on machine learning, such as RUL estimation and anomaly detection, achieved much lower utilization (up to 31.83 p.p.) compared with MAUD while maintaining the same failure rate.
{"title":"Pseudolabeling Machine Learning Algorithm for Predictive Maintenance of Relays","authors":"Fabian Winkel;Oliver Wallscheid;Peter Scholz;Joachim Böcker","doi":"10.1109/OJIES.2023.3323870","DOIUrl":"https://doi.org/10.1109/OJIES.2023.3323870","url":null,"abstract":"Predictive maintenance (PdM) has become an important industrial feature. Existing methods mainly focus on remaining useful life (RUL) regression or anomaly detection to achieve PdM in a given application. Those approaches assume monotonic degradation processes leading to a single catastrophic failure at the system's end of lifetime. In contrast, much more complex degradation processes can be found in real-world applications, which are characterized by effects like self-healing or noncatastrophic anomalies. A important example of devices with complex degradation are electromechanical relays. As established PdM solutions failed when applied to a real-world relays degradation data set, the maintenance algorithm for unlabeled data (MAUD) is presented to detect signs of wear and enable a service in time. In detail, MAUD is based on an artificial neural network (ANN), which is trained semisupervised. Experiments with measurement data from 546 relays show that MAUD is superior to various existing methods: The static B10 threshold, which represents the state of the art in relay maintenance, is surpassed by a 17.07 p.p. increase in utilization while reducing failures by 6.42 p.p. Methods based on machine learning, such as RUL estimation and anomaly detection, achieved much lower utilization (up to 31.83 p.p.) compared with MAUD while maintaining the same failure rate.","PeriodicalId":52675,"journal":{"name":"IEEE Open Journal of the Industrial Electronics Society","volume":"4 ","pages":"463-475"},"PeriodicalIF":8.5,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10285575","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"109157751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-02DOI: 10.1109/OJIES.2023.3320900
Ana Rafaela Figueiredo Bento;Fernando Bento;Antonio J. Marques Cardoso
Direct current (dc) power system protection presents a major challenge due to its unique characteristics, namely the absence of natural zero current crossing points. Thanks to their features, dc protection devices allow the safe commutation of the fault current. Selective protection and fast fault isolation are key features that any dc circuit breaker should feature, assuring minimal power outages and the effective protection of sensitive electronic components. To overcome the liabilities of mechanical circuit breakers (MCBs) and solid-state circuit breakers (SSCBs), several novel concepts of hybrid circuit breakers (HCBs) have been proposed over the years, to take advantage of the benefits of both the MCBs and SSCBs. This article presents an up-to-date state-of-the-art on the technologies applied to dc HCBs and describes novel HCB concepts. Design considerations, challenges, and future trends are also discussed.
{"title":"A Review on Hybrid Circuit Breakers for DC Applications","authors":"Ana Rafaela Figueiredo Bento;Fernando Bento;Antonio J. Marques Cardoso","doi":"10.1109/OJIES.2023.3320900","DOIUrl":"https://doi.org/10.1109/OJIES.2023.3320900","url":null,"abstract":"Direct current (dc) power system protection presents a major challenge due to its unique characteristics, namely the absence of natural zero current crossing points. Thanks to their features, dc protection devices allow the safe commutation of the fault current. Selective protection and fast fault isolation are key features that any dc circuit breaker should feature, assuring minimal power outages and the effective protection of sensitive electronic components. To overcome the liabilities of mechanical circuit breakers (MCBs) and solid-state circuit breakers (SSCBs), several novel concepts of hybrid circuit breakers (HCBs) have been proposed over the years, to take advantage of the benefits of both the MCBs and SSCBs. This article presents an up-to-date state-of-the-art on the technologies applied to dc HCBs and describes novel HCB concepts. Design considerations, challenges, and future trends are also discussed.","PeriodicalId":52675,"journal":{"name":"IEEE Open Journal of the Industrial Electronics Society","volume":"4 ","pages":"432-450"},"PeriodicalIF":8.5,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/8782706/10007667/10269015.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49963473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-02DOI: 10.1109/OJIES.2023.3321239
Sampath Jayalath;Azeem Khan
Coupler parameters, such as transmitter inductance ( LTx ), receiver inductance ( LRx ), and the coupling coefficient ( k ) or mutual inductance ( M ), vary with the misalignments. Their variations must be quantified and incorporated into the design and optimization stage as they impact performance indices such as efficiency and leakage magnetic field. Most of the solutions proposed in the literature compromise the performance of the coupler in search of a misalignment-tolerant design. Therefore, this article presents a method to incorporate the misalignments into the design and optimization process of an inductive power transfer (IPT) coupler by utilizing robust optimization, where misalignments are considered as noises or disturbances or uncertainties to a perfectly aligned coupler. The optimized designs resulting from this method will not compromise the performance of the coupler in search of a misalignment-tolerant design. Effectiveness of the proposed robust optimization method is experimentally verified with a 3.7 kW hardware prototype.
{"title":"Robust Optimization for Misalignment Tolerance in Inductive Power Transfer Coupler Design","authors":"Sampath Jayalath;Azeem Khan","doi":"10.1109/OJIES.2023.3321239","DOIUrl":"https://doi.org/10.1109/OJIES.2023.3321239","url":null,"abstract":"Coupler parameters, such as transmitter inductance (\u0000<italic>L<sub>Tx</sub></i>\u0000), receiver inductance (\u0000<italic>L<sub>Rx</sub></i>\u0000), and the coupling coefficient (\u0000<italic>k</i>\u0000) or mutual inductance (\u0000<italic>M</i>\u0000), vary with the misalignments. Their variations must be quantified and incorporated into the design and optimization stage as they impact performance indices such as efficiency and leakage magnetic field. Most of the solutions proposed in the literature compromise the performance of the coupler in search of a misalignment-tolerant design. Therefore, this article presents a method to incorporate the misalignments into the design and optimization process of an inductive power transfer (IPT) coupler by utilizing robust optimization, where misalignments are considered as noises or disturbances or uncertainties to a perfectly aligned coupler. The optimized designs resulting from this method will not compromise the performance of the coupler in search of a misalignment-tolerant design. Effectiveness of the proposed robust optimization method is experimentally verified with a 3.7 kW hardware prototype.","PeriodicalId":52675,"journal":{"name":"IEEE Open Journal of the Industrial Electronics Society","volume":"4 ","pages":"401-416"},"PeriodicalIF":8.5,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/8782706/10007667/10268577.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49963471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-02DOI: 10.1109/OJIES.2023.3321084
Giordano Lilli;Midhun Xavier;Etienne Le Priol;Vincent Perret;Tatiana Liakh;Roberto Oboe;Valeriy Vyatkin
Automation systems within nuclear laboratories are intended to work under harsh operating conditions. Selective Production of Exotic Species (SPES) is a nuclear research facility currently under construction by the Istituto Nazionale di Fisica Nucleare, dedicated to the production and study of radioactive ion beams. Isotopes are produced within the target ion source unit, a vacuum vessel that must be replaced on a regular basis. The highly radioactive environment necessitates the deployment of a set of automated systems dedicated to the unit's remote management. To meet high-level security standards, the design of such instrumentation and control systems must include extensive verification. Based on specific safety requirements, model checking can be used to assess the systems' correctness. This article describes how to employ an integrated toolchain to design, simulate, formally verify, and deploy the control software for the Horizontal Handling Machine, a safety-critical remote handling system in operation at SPES. The IEC 61499 standard's adoption led to a redesign of the control logic. Following a preliminary online simulation, the closed-loop system has been formally verified using the NuSMV symbolic model checker, with the help of the FB2SMV converter. In addition, the Function Blocks Modeling Environment tool was used for automating verification and analyzing counterexamples.
{"title":"Formal Verification of the Control Software of a Radioactive Material Remote Handling System, Based on IEC 61499","authors":"Giordano Lilli;Midhun Xavier;Etienne Le Priol;Vincent Perret;Tatiana Liakh;Roberto Oboe;Valeriy Vyatkin","doi":"10.1109/OJIES.2023.3321084","DOIUrl":"https://doi.org/10.1109/OJIES.2023.3321084","url":null,"abstract":"Automation systems within nuclear laboratories are intended to work under harsh operating conditions. Selective Production of Exotic Species (SPES) is a nuclear research facility currently under construction by the Istituto Nazionale di Fisica Nucleare, dedicated to the production and study of radioactive ion beams. Isotopes are produced within the target ion source unit, a vacuum vessel that must be replaced on a regular basis. The highly radioactive environment necessitates the deployment of a set of automated systems dedicated to the unit's remote management. To meet high-level security standards, the design of such instrumentation and control systems must include extensive verification. Based on specific safety requirements, model checking can be used to assess the systems' correctness. This article describes how to employ an integrated toolchain to design, simulate, formally verify, and deploy the control software for the Horizontal Handling Machine, a safety-critical remote handling system in operation at SPES. The IEC 61499 standard's adoption led to a redesign of the control logic. Following a preliminary online simulation, the closed-loop system has been formally verified using the NuSMV symbolic model checker, with the help of the FB2SMV converter. In addition, the Function Blocks Modeling Environment tool was used for automating verification and analyzing counterexamples.","PeriodicalId":52675,"journal":{"name":"IEEE Open Journal of the Industrial Electronics Society","volume":"4 ","pages":"417-431"},"PeriodicalIF":8.5,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/8782706/10007667/10268612.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49963474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-25DOI: 10.1109/OJIES.2023.3319040
Yushan Liu;Zhouchi Liang;Xiao Li
The application of smart meters was delayed, leading to sparse power load data collection in industrial and commercial buildings, often encompassing only days to a few months of data. In contrast, deep learning models necessitate extensive datasets, spanning several years. To bridge this data deficit, this article proposes a hybrid forecasting method combining time-series generation adversarial network (TimeGAN) with a convolutional neural network (CNN)-enhanced long short-term memory (LSTM) neural network. Initially, the scarce dataset is expanded using synthetic data derived from TimeGAN. Subsequently, the comprehensive data undergo CNN filtering, optimizing the information extraction and expediting the forecasting network. The extracted information is then channeled into LSTM network for load forecasting. A case study is carried out using two-month power load data from four different industrial and commercial building types, underpins this methodology. Comparative analysis reveals that the proposed model effectively improves short-term power load forecasting accuracy.
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