Pub Date : 2023-11-02DOI: 10.1109/ICJECE.2023.3288928
Rohit Kumar Rastogi;Manoj Tripathy
This article describes an adaptive resonance frequency extraction-based dc–dc converter controller to stabilize the dc microgrid (dc MG). The dc MG becomes prone to instability due to the excessive application of constant power loads (CPLs) and their variations. Under such conditions, the source-side control techniques for the stabilization of dc MG systems fail. Therefore, to stabilize dc MG systems, the load-side control methods are alternate approaches to improve the stability of dc MG. In this article, a new feed-forward control technique is proposed to improve the stability of the dc MG. In the proposed method, the input impedance of the load-side dc–dc converter is modified by the phase compensation method without realizing a total magnitude separation $(Z_{text {os}}$ and $y_{text {iL}}=1/Z_{text {iL}}) $ to stabilize the dc MG system. The investigation analyzes the possibility of instability across the operational frequency spectrum. Based on that, a new feed-forward loop compensator is derived, which is a function of the center frequency to make it adaptive to load variations. After that, the derived compensator is realized for voltage mode control of the buck converter. It reduces the dc MG bus voltage oscillations without increasing system complexity and dissipation. The results of the MATLAB® simulation are compared with suggested and existing control methods. Moreover, it was discovered that the ripple in bus voltage decreased from 5.28% to 0.7%. And the settling durations of dc bus voltage and current were lowered from 0.5 and 0.25 s to 0.25 and 0.16 s, respectively.
{"title":"A New Adaptive POL Converter Controller Design to Improve Bus Voltage Stability for DC Microgrid Application","authors":"Rohit Kumar Rastogi;Manoj Tripathy","doi":"10.1109/ICJECE.2023.3288928","DOIUrl":"10.1109/ICJECE.2023.3288928","url":null,"abstract":"This article describes an adaptive resonance frequency extraction-based dc–dc converter controller to stabilize the dc microgrid (dc MG). The dc MG becomes prone to instability due to the excessive application of constant power loads (CPLs) and their variations. Under such conditions, the source-side control techniques for the stabilization of dc MG systems fail. Therefore, to stabilize dc MG systems, the load-side control methods are alternate approaches to improve the stability of dc MG. In this article, a new feed-forward control technique is proposed to improve the stability of the dc MG. In the proposed method, the input impedance of the load-side dc–dc converter is modified by the phase compensation method without realizing a total magnitude separation \u0000<inline-formula> <tex-math>$(Z_{text {os}}$ </tex-math></inline-formula>\u0000 and \u0000<inline-formula> <tex-math>$y_{text {iL}}=1/Z_{text {iL}}) $ </tex-math></inline-formula>\u0000 to stabilize the dc MG system. The investigation analyzes the possibility of instability across the operational frequency spectrum. Based on that, a new feed-forward loop compensator is derived, which is a function of the center frequency to make it adaptive to load variations. After that, the derived compensator is realized for voltage mode control of the buck converter. It reduces the dc MG bus voltage oscillations without increasing system complexity and dissipation. The results of the MATLAB® simulation are compared with suggested and existing control methods. Moreover, it was discovered that the ripple in bus voltage decreased from 5.28% to 0.7%. And the settling durations of dc bus voltage and current were lowered from 0.5 and 0.25 s to 0.25 and 0.16 s, respectively.","PeriodicalId":100619,"journal":{"name":"IEEE Canadian Journal of Electrical and Computer Engineering","volume":"46 4","pages":"288-297"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134891016","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}
Diffuse optical tomography (DOT) is a breast imaging modality that measures the functional characteristics of breast lesions using near-infrared (NIR) light to calculate the optical properties (scattering and absorption coefficients) of breast tissues. In this study, we have developed a NIR diffuse optical breast scanning (DOB-Scan) probe and evaluated a new imaging method based on a modified diffusion equation (MDE) for breast tumor localization. The probe is applied to breast phantoms to collect reflectance or the intensity of backscattered light. To measure the optical properties of the phantoms, we also calculated the reflectance theoretically, where we initially utilized the original diffusion equation (DE) to arrive at the theoretical reflectance. However, the DE algorithm has several limitations, which require modification of the DE formula to match the experimental results before obtaining the optical properties. Finally, the imaging algorithm is used to map the optical properties to cross-sectional images, which can localize the abnormalities in the breast phantoms. These findings suggest the DOB-Scan probe has valuable potential for breast cancer detection and diagnosis.
{"title":"Near-Infrared Handheld Probe and Imaging System for Breast Tumor Localization","authors":"Shadi Momtahen;Majid Shokoufi;Ramani Ramaseshan;Farid Golnaraghi","doi":"10.1109/ICJECE.2023.3259239","DOIUrl":"https://doi.org/10.1109/ICJECE.2023.3259239","url":null,"abstract":"Diffuse optical tomography (DOT) is a breast imaging modality that measures the functional characteristics of breast lesions using near-infrared (NIR) light to calculate the optical properties (scattering and absorption coefficients) of breast tissues. In this study, we have developed a NIR diffuse optical breast scanning (DOB-Scan) probe and evaluated a new imaging method based on a modified diffusion equation (MDE) for breast tumor localization. The probe is applied to breast phantoms to collect reflectance or the intensity of backscattered light. To measure the optical properties of the phantoms, we also calculated the reflectance theoretically, where we initially utilized the original diffusion equation (DE) to arrive at the theoretical reflectance. However, the DE algorithm has several limitations, which require modification of the DE formula to match the experimental results before obtaining the optical properties. Finally, the imaging algorithm is used to map the optical properties to cross-sectional images, which can localize the abnormalities in the breast phantoms. These findings suggest the DOB-Scan probe has valuable potential for breast cancer detection and diagnosis.","PeriodicalId":100619,"journal":{"name":"IEEE Canadian Journal of Electrical and Computer Engineering","volume":"46 4","pages":"246-255"},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71903511","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 : 2023-10-06DOI: 10.1109/ICJECE.2023.3298846
Stephen McKeon;Vincent Roberge
Modern avionics systems exhibit numerous networked electronic components ranging from sensors and actuators to dedicated subsystems, resulting in aircraft capable of processing and responding to information accurately, reliably, and in a timely fashion. Assuring the cyber security of these systems is a continual challenge and an active area of research; in the case where an aircraft has been compromised by a malicious actor, digital forensics can be utilized to investigate what and how the incident occurred. This research answers a simple, yet fundamental question on the security of aircraft: whether useful digital forensic artifacts be obtained from embedded real-time systems on aircraft. The highly reliable file system (HRFS) utilized by VxWorks was analyzed and described to align with the generalized descriptions of file system formats accepted in academia. The Sleuth Kit (TSK), an open-source forensic toolkit, was analyzed and extended to include functionality to support this file system, and a proof-of-concept implementation to obtain digital forensic artifacts from real-time operating systems on aircraft was developed. This research finds that the proposed implementation can perform file analysis and recovery from a VxWorks generated HRFS-formatted file system and can be generalized to show that embedded real-time systems can provide useful digital forensic artifacts.
{"title":"Disk Forensics of VxWorks File Systems for Aircraft Security Analyse","authors":"Stephen McKeon;Vincent Roberge","doi":"10.1109/ICJECE.2023.3298846","DOIUrl":"https://doi.org/10.1109/ICJECE.2023.3298846","url":null,"abstract":"Modern avionics systems exhibit numerous networked electronic components ranging from sensors and actuators to dedicated subsystems, resulting in aircraft capable of processing and responding to information accurately, reliably, and in a timely fashion. Assuring the cyber security of these systems is a continual challenge and an active area of research; in the case where an aircraft has been compromised by a malicious actor, digital forensics can be utilized to investigate what and how the incident occurred. This research answers a simple, yet fundamental question on the security of aircraft: whether useful digital forensic artifacts be obtained from embedded real-time systems on aircraft. The highly reliable file system (HRFS) utilized by VxWorks was analyzed and described to align with the generalized descriptions of file system formats accepted in academia. The Sleuth Kit (TSK), an open-source forensic toolkit, was analyzed and extended to include functionality to support this file system, and a proof-of-concept implementation to obtain digital forensic artifacts from real-time operating systems on aircraft was developed. This research finds that the proposed implementation can perform file analysis and recovery from a VxWorks generated HRFS-formatted file system and can be generalized to show that embedded real-time systems can provide useful digital forensic artifacts.","PeriodicalId":100619,"journal":{"name":"IEEE Canadian Journal of Electrical and Computer Engineering","volume":"46 4","pages":"278-287"},"PeriodicalIF":0.0,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71903515","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 : 2023-10-06DOI: 10.1109/ICJECE.2023.3296826
Kumar Reddy Cheepati;E. Parimalasundar;K. Suresh;Ch. Rami Reddy;Mohammed M. Alqahtani;Muhammad Khalid
Nowadays, there is a race between active and passive harmonic filters and still ambiguity persists. It is a proven fact that active harmonic filters (AHFs) are costly solutions though have proved better than passive harmonic filters. Except sizing and resonance problems, tuned passive harmonic filters (TPHFs) are proved to give economical solutions with little compromise on their performance. The accurate design of TPHFs gives a greater impact on its performance. The triple-TPHF (TTPHF) is essential to alleviate first three dominant ac side current harmonics simultaneously at the high voltage direct current (HVdc) converters and it is proved better than the single and double TPHFs. Existing equivalent methods of TTPHF design failed to give satisfactory performance under dynamic conditions. Hence, this article introduces a novel parametric method-based design of TTPHF, which will give better performance under static and dynamic loading conditions. The results also reveal that the proposed TTPHF design method will perform better than the existing methods.
{"title":"Design of Triple Tuned Passive Harmonic Power Filter—A Novel Approach","authors":"Kumar Reddy Cheepati;E. Parimalasundar;K. Suresh;Ch. Rami Reddy;Mohammed M. Alqahtani;Muhammad Khalid","doi":"10.1109/ICJECE.2023.3296826","DOIUrl":"https://doi.org/10.1109/ICJECE.2023.3296826","url":null,"abstract":"Nowadays, there is a race between active and passive harmonic filters and still ambiguity persists. It is a proven fact that active harmonic filters (AHFs) are costly solutions though have proved better than passive harmonic filters. Except sizing and resonance problems, tuned passive harmonic filters (TPHFs) are proved to give economical solutions with little compromise on their performance. The accurate design of TPHFs gives a greater impact on its performance. The triple-TPHF (TTPHF) is essential to alleviate first three dominant ac side current harmonics simultaneously at the high voltage direct current (HVdc) converters and it is proved better than the single and double TPHFs. Existing equivalent methods of TTPHF design failed to give satisfactory performance under dynamic conditions. Hence, this article introduces a novel parametric method-based design of TTPHF, which will give better performance under static and dynamic loading conditions. The results also reveal that the proposed TTPHF design method will perform better than the existing methods.","PeriodicalId":100619,"journal":{"name":"IEEE Canadian Journal of Electrical and Computer Engineering","volume":"46 4","pages":"270-277"},"PeriodicalIF":0.0,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71903514","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 : 2023-10-06DOI: 10.1109/ICJECE.2023.3293031
Maysa Yaseen;Ayse E. Canbilen;Salama Ikki
In this article, the estimation of random channel gain is studied for a single-input single-output (SISO) visible light communication (VLC) system. Five different estimators, namely maximum likelihood (ML), least square (LS), maximum posteriori probability (MAP), linear minimum mean square error (LMMSE), and minimum mean square error (MMSE), are proposed. The performances of these estimators are compared with the derived Bayesian Cramér–Rao lower bound (BCRLB), which can be used as a benchmark to evaluate the efficiency of the unbiased estimators. The presented analytical results, corroborated with Monte Carlo simulations, indicate that the MMSE estimator provides the best results. Additionally, the increasing number of pilot symbols as well as the ascending transmitted power improve the system performance. On the other hand, the noise variance has a negative effect on the channel estimation in terms of mean square error (MSE), and thus, it can dramatically reduce the performance of the estimators.
{"title":"Estimation of Random Channel Gain for SISO Visible Light Communications System","authors":"Maysa Yaseen;Ayse E. Canbilen;Salama Ikki","doi":"10.1109/ICJECE.2023.3293031","DOIUrl":"https://doi.org/10.1109/ICJECE.2023.3293031","url":null,"abstract":"In this article, the estimation of random channel gain is studied for a single-input single-output (SISO) visible light communication (VLC) system. Five different estimators, namely maximum likelihood (ML), least square (LS), maximum posteriori probability (MAP), linear minimum mean square error (LMMSE), and minimum mean square error (MMSE), are proposed. The performances of these estimators are compared with the derived Bayesian Cramér–Rao lower bound (BCRLB), which can be used as a benchmark to evaluate the efficiency of the unbiased estimators. The presented analytical results, corroborated with Monte Carlo simulations, indicate that the MMSE estimator provides the best results. Additionally, the increasing number of pilot symbols as well as the ascending transmitted power improve the system performance. On the other hand, the noise variance has a negative effect on the channel estimation in terms of mean square error (MSE), and thus, it can dramatically reduce the performance of the estimators.","PeriodicalId":100619,"journal":{"name":"IEEE Canadian Journal of Electrical and Computer Engineering","volume":"46 4","pages":"262-269"},"PeriodicalIF":0.0,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71903513","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 : 2023-10-05DOI: 10.1109/ICJECE.2023.3275975
Alexander G. B. Colpitts;Brent R. Petersen
This article presents an anomaly detection (AD) algorithm, robust AD for rural fixed wireless LTE (RAINFOREST), to address the difficulty of fault detection in LTE networks, specifically those that are rural and fixed wireless. We propose a hybrid AD method that uses network key performance indicators (KPIs), historical KPI forecasts, density-based spatial clustering of applications with noise (DBSCAN), and statistical analysis to detect anomalies. RAINFOREST outperformed benchmark AD methods and was able to detect faults in a rural commercial fixed wireless network earlier than existing LTE threshold-based alarms.
{"title":"Unsupervised Anomaly Detection for Rural Fixed Wireless LTE Networks","authors":"Alexander G. B. Colpitts;Brent R. Petersen","doi":"10.1109/ICJECE.2023.3275975","DOIUrl":"https://doi.org/10.1109/ICJECE.2023.3275975","url":null,"abstract":"This article presents an anomaly detection (AD) algorithm, robust AD for rural fixed wireless LTE (RAINFOREST), to address the difficulty of fault detection in LTE networks, specifically those that are rural and fixed wireless. We propose a hybrid AD method that uses network key performance indicators (KPIs), historical KPI forecasts, density-based spatial clustering of applications with noise (DBSCAN), and statistical analysis to detect anomalies. RAINFOREST outperformed benchmark AD methods and was able to detect faults in a rural commercial fixed wireless network earlier than existing LTE threshold-based alarms.","PeriodicalId":100619,"journal":{"name":"IEEE Canadian Journal of Electrical and Computer Engineering","volume":"46 4","pages":"256-261"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71903512","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 : 2023-09-19DOI: 10.1109/ICJECE.2023.3292709
{"title":"IEEE Canadian Journal of Electrical and Computer Engineering","authors":"","doi":"10.1109/ICJECE.2023.3292709","DOIUrl":"https://doi.org/10.1109/ICJECE.2023.3292709","url":null,"abstract":"","PeriodicalId":100619,"journal":{"name":"IEEE Canadian Journal of Electrical and Computer Engineering","volume":"46 3","pages":"C2-C2"},"PeriodicalIF":0.0,"publicationDate":"2023-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/9349829/10175198/10255097.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68026224","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 : 2023-07-25DOI: 10.1109/ICJECE.2023.3275281
Abdullah Gokyildirim
This study proposes a novel chaotic attractor with seven terms in three simple ordinary differential equations involving a line and unstable equilibria. The complex dynamical behavior of the proposed system is studied in detail by analyzing its equilibria, Lyapunov spectra, and bifurcation diagram. The feasibility and accuracy of the novel attractor are examined by constructing its analog circuit implementation. Additionally, periodic states of the system are examined in both numerical and PSpice simulations, as well as an analog circuit implementation. The hardware experimental results are highly compatible with numerical and PSpice simulations. As can be seen from the numerical simulations and hardware implementation, the presented system shows sensitive and rich dynamic behaviors in a small range of system parameters. The proposed oscillator circuit is also cost-effective, as it has only seven terms. Additionally, a sliding mode controller (SMC) is presented to control the novel attractor. The stability of the designed SMC is proven via the Lyapunov stability method. Lastly, a microcontroller-based implementation is realized, and it is seen that the experimental results are in good accordance with the simulation results. The correctness of the proposed controller is approved by theoretical analysis, numerical simulations, and experimental results.
{"title":"A Novel Chaotic Attractor With a Line and Unstable Equilibria: Dynamics, Circuit Design, and Microcontroller-Based Sliding Mode Control","authors":"Abdullah Gokyildirim","doi":"10.1109/ICJECE.2023.3275281","DOIUrl":"https://doi.org/10.1109/ICJECE.2023.3275281","url":null,"abstract":"This study proposes a novel chaotic attractor with seven terms in three simple ordinary differential equations involving a line and unstable equilibria. The complex dynamical behavior of the proposed system is studied in detail by analyzing its equilibria, Lyapunov spectra, and bifurcation diagram. The feasibility and accuracy of the novel attractor are examined by constructing its analog circuit implementation. Additionally, periodic states of the system are examined in both numerical and PSpice simulations, as well as an analog circuit implementation. The hardware experimental results are highly compatible with numerical and PSpice simulations. As can be seen from the numerical simulations and hardware implementation, the presented system shows sensitive and rich dynamic behaviors in a small range of system parameters. The proposed oscillator circuit is also cost-effective, as it has only seven terms. Additionally, a sliding mode controller (SMC) is presented to control the novel attractor. The stability of the designed SMC is proven via the Lyapunov stability method. Lastly, a microcontroller-based implementation is realized, and it is seen that the experimental results are in good accordance with the simulation results. The correctness of the proposed controller is approved by theoretical analysis, numerical simulations, and experimental results.","PeriodicalId":100619,"journal":{"name":"IEEE Canadian Journal of Electrical and Computer Engineering","volume":"46 3","pages":"228-236"},"PeriodicalIF":0.0,"publicationDate":"2023-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68026229","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 : 2023-07-21DOI: 10.1109/ICJECE.2023.3272562
M. A. Hernández-Rodríguez;R. Iracheta-Cortez
This article is described step by step the methodology for dimensioning a transverse flux permanent magnet synchronous generator for applications in small wind turbines. The proposed methodology is based on the concepts of magnetic circuit theory which have been widely explained in the specialized literature. Due to the generator will be used in a wind turbine that works at variable speeds, it will be necessary to analyze its performance in a full range defined by operation speeds. Also, the performance is analyzed under no load and load conditions. The developed methodology is coded in MATLAB and it has been exhaustively validated through 3-D finite element analysis (FEA).
{"title":"Design and Performance Analysis of a Transverse-Flux PMSG for Applications in Small Wind Turbines","authors":"M. A. Hernández-Rodríguez;R. Iracheta-Cortez","doi":"10.1109/ICJECE.2023.3272562","DOIUrl":"https://doi.org/10.1109/ICJECE.2023.3272562","url":null,"abstract":"This article is described step by step the methodology for dimensioning a transverse flux permanent magnet synchronous generator for applications in small wind turbines. The proposed methodology is based on the concepts of magnetic circuit theory which have been widely explained in the specialized literature. Due to the generator will be used in a wind turbine that works at variable speeds, it will be necessary to analyze its performance in a full range defined by operation speeds. Also, the performance is analyzed under no load and load conditions. The developed methodology is coded in MATLAB and it has been exhaustively validated through 3-D finite element analysis (FEA).","PeriodicalId":100619,"journal":{"name":"IEEE Canadian Journal of Electrical and Computer Engineering","volume":"46 3","pages":"218-227"},"PeriodicalIF":0.0,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68026231","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 : 2023-07-21DOI: 10.1109/ICJECE.2023.3275734
R. Sindhuja;S. Padma
Complexity in the implementation of the inverter circuit lies with the logic behind the generation of the switching pulse sequences using multicarrier-pulsewidth modulation (MC-PWM). The analysis of the switching sequence for the operation of 15 level multi-level inverter (MLI) topology using logical gates is introduced in this article. A 15-level reduced switch topology is proposed which consists of eight switches. The main focus is to analyze the procedure of generating a pulse pattern for the eight switches in the circuit and to obtain the logical expression. Key Findings: The input pulse for the generation of eight different pulse patterns is obtained by MC-PWM technique. Several MC-PWM techniques, including phase disposition (PD), alternate phase opposition disposition (APOD), and phase opposition disposition (POD), are available. POD were applied to the proposed reduced switch topology using the same logical expression and the results were analyzed. MATLAB/Simulink is employed in the execution of the simulation work. The desired pulse pattern is simulated in real time and generated with the assistance of dSPACE 1104. Various modulation index (MI) and several PWM algorithms are used to examine the total harmonic distortion (THD) comparison study.
{"title":"Logical Analysis for Switching Sequence Generation in 15-Level Reduced Switch MLI","authors":"R. Sindhuja;S. Padma","doi":"10.1109/ICJECE.2023.3275734","DOIUrl":"https://doi.org/10.1109/ICJECE.2023.3275734","url":null,"abstract":"Complexity in the implementation of the inverter circuit lies with the logic behind the generation of the switching pulse sequences using multicarrier-pulsewidth modulation (MC-PWM). The analysis of the switching sequence for the operation of 15 level multi-level inverter (MLI) topology using logical gates is introduced in this article. A 15-level reduced switch topology is proposed which consists of eight switches. The main focus is to analyze the procedure of generating a pulse pattern for the eight switches in the circuit and to obtain the logical expression. Key Findings: The input pulse for the generation of eight different pulse patterns is obtained by MC-PWM technique. Several MC-PWM techniques, including phase disposition (PD), alternate phase opposition disposition (APOD), and phase opposition disposition (POD), are available. POD were applied to the proposed reduced switch topology using the same logical expression and the results were analyzed. MATLAB/Simulink is employed in the execution of the simulation work. The desired pulse pattern is simulated in real time and generated with the assistance of dSPACE 1104. Various modulation index (MI) and several PWM algorithms are used to examine the total harmonic distortion (THD) comparison study.","PeriodicalId":100619,"journal":{"name":"IEEE Canadian Journal of Electrical and Computer Engineering","volume":"46 3","pages":"237-245"},"PeriodicalIF":0.0,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68026232","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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