Pub Date : 2021-11-22DOI: 10.1109/IEACon51066.2021.9654779
M. Haque, L. Jones, B. Sturmberg
A bidirectional charger is a four-quadrant converter. It is a vital element that facilitates the energy exchange between electric vehicle (EV) batteries and the electricity grid. As EVs proliferate throughout distribution grids over the coming years, understanding the performance of different EV chargers is important, especially during grid disturbances. In this paper, we demonstrate grid disturbances such as voltage sags and frequency variations using a grid simulator. These grid disturbances are applied to an off-the-shelf EV charger. Experimental results show that the operation of the EV charger is greatly affected by the grid disturbances. In some cases, the charger disconnects from the grid, disrupting grid services delivery.
{"title":"Response of a Bidirectional EV Charger to Selected Grid Disturbances","authors":"M. Haque, L. Jones, B. Sturmberg","doi":"10.1109/IEACon51066.2021.9654779","DOIUrl":"https://doi.org/10.1109/IEACon51066.2021.9654779","url":null,"abstract":"A bidirectional charger is a four-quadrant converter. It is a vital element that facilitates the energy exchange between electric vehicle (EV) batteries and the electricity grid. As EVs proliferate throughout distribution grids over the coming years, understanding the performance of different EV chargers is important, especially during grid disturbances. In this paper, we demonstrate grid disturbances such as voltage sags and frequency variations using a grid simulator. These grid disturbances are applied to an off-the-shelf EV charger. Experimental results show that the operation of the EV charger is greatly affected by the grid disturbances. In some cases, the charger disconnects from the grid, disrupting grid services delivery.","PeriodicalId":397039,"journal":{"name":"2021 IEEE Industrial Electronics and Applications Conference (IEACon)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131316391","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 : 2021-11-22DOI: 10.1109/IEACon51066.2021.9654650
S. A. Zulkifli, Lorrina Tan Mei Hua, Ronald Jackson, Muhammad Syazmie Seppeh
This project describes the development of a Variable Voltage Variable Frequency (VVVF) system that control the speed of Induction Motor (IM). The target value of VVVF is implemented with the Lookup Table and with the Proportional Integral (PI) for speed control. The LookUp Table give the speed input to be independent control. Both simulation and hardware implementation have been conducted in order to observed the integration between them for generating a suitbale PWM signal to inverter. The results, show, this integration is able to control the IM speed based on the desired target value. Several tests speed at the IM during the reference are 1300rpm and 1500rpm where the real outputs are 1297rpm and 1499rpm. At the end it can be concluded that, the VVVF when combined with the lookup table has created an ecosystem for simple speed control that can be learn and understand by the student.
{"title":"Integration on VVVF Drive System for Induction Motor Speed Control with Lookup Table","authors":"S. A. Zulkifli, Lorrina Tan Mei Hua, Ronald Jackson, Muhammad Syazmie Seppeh","doi":"10.1109/IEACon51066.2021.9654650","DOIUrl":"https://doi.org/10.1109/IEACon51066.2021.9654650","url":null,"abstract":"This project describes the development of a Variable Voltage Variable Frequency (VVVF) system that control the speed of Induction Motor (IM). The target value of VVVF is implemented with the Lookup Table and with the Proportional Integral (PI) for speed control. The LookUp Table give the speed input to be independent control. Both simulation and hardware implementation have been conducted in order to observed the integration between them for generating a suitbale PWM signal to inverter. The results, show, this integration is able to control the IM speed based on the desired target value. Several tests speed at the IM during the reference are 1300rpm and 1500rpm where the real outputs are 1297rpm and 1499rpm. At the end it can be concluded that, the VVVF when combined with the lookup table has created an ecosystem for simple speed control that can be learn and understand by the student.","PeriodicalId":397039,"journal":{"name":"2021 IEEE Industrial Electronics and Applications Conference (IEACon)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114212049","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 : 2021-11-22DOI: 10.1109/IEACon51066.2021.9654582
Siti Nur Syafiqah Mohd Razak, S. F. S. Adnan
Queuing is a mechanism where one must wait in line to be handled from one point to another for their turn. However, without proper queuing tools yet expensive, the waiting time could increase especially in healthcare services while waiting for the treatment. The number of patients increased especially in peak time can contribute to the long waiting time in the healthcare area. The purpose of this project is to propose a low-cost queuing system. The system will manage the queuing process to prevent the healthcare services especially Health Clinic from being crowded and reduced the waiting time. This system is based on Ionic App for the application development and Firebase database to store the real-time data. The entire system is controlled by the Ionic App and can be accessed using a smartphone by downloading the APK file. The reason behind this project is from the observation, a lot of time was consumed during queuing at the Health Clinic while waiting for their turn. Some of the Health clinics still using the manual ticketing queuing system. This results in a long waiting time and overcrowds the small waiting area. Thus, this project will benefit both sides where Health Clinic can organize their queuing management system at a lower cost and reduce patients from longer waiting time during peak hours without physically being at the clinic.
{"title":"Low-Cost Queuing Management System for Health Clinic","authors":"Siti Nur Syafiqah Mohd Razak, S. F. S. Adnan","doi":"10.1109/IEACon51066.2021.9654582","DOIUrl":"https://doi.org/10.1109/IEACon51066.2021.9654582","url":null,"abstract":"Queuing is a mechanism where one must wait in line to be handled from one point to another for their turn. However, without proper queuing tools yet expensive, the waiting time could increase especially in healthcare services while waiting for the treatment. The number of patients increased especially in peak time can contribute to the long waiting time in the healthcare area. The purpose of this project is to propose a low-cost queuing system. The system will manage the queuing process to prevent the healthcare services especially Health Clinic from being crowded and reduced the waiting time. This system is based on Ionic App for the application development and Firebase database to store the real-time data. The entire system is controlled by the Ionic App and can be accessed using a smartphone by downloading the APK file. The reason behind this project is from the observation, a lot of time was consumed during queuing at the Health Clinic while waiting for their turn. Some of the Health clinics still using the manual ticketing queuing system. This results in a long waiting time and overcrowds the small waiting area. Thus, this project will benefit both sides where Health Clinic can organize their queuing management system at a lower cost and reduce patients from longer waiting time during peak hours without physically being at the clinic.","PeriodicalId":397039,"journal":{"name":"2021 IEEE Industrial Electronics and Applications Conference (IEACon)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117256963","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 : 2021-11-22DOI: 10.1109/IEACon51066.2021.9654631
Tatsuki Hayashi, Koki Kataoka, M. Tomita, M. Hasegawa, S. Doki
Synchronous reluctance motors (SynRMs) have attracted attention for various applications because they have no magnets and rotor windings. Thus, various methods for rotor position sensorless control of SynRMs at low speeds have been proposed. Similarly, we previously introduced a method for rotor position sensorless control of SynRMs at very low speeds. The proposed control method superimposes a high-frequency current with a small constant amplitude using a high-frequency current control system. The $q$-axis inductance of the SynRM considerably changes according to the load. In this paper, we show that the rotor position estimation error converges even under a large error between the predefined and real settings of the $q$-axis inductance of the SynRM model for position estimation when using the proposed method. Experimental results confirm that the proposed method achieves robust rotor position sensorless control against $q$-axis inductance variations even at very low speeds.
{"title":"Effects of Inductance Error on Position Sensorless Control of Synchronous Reluctance Motor at Low Speeds Using High-Frequency Current Controller","authors":"Tatsuki Hayashi, Koki Kataoka, M. Tomita, M. Hasegawa, S. Doki","doi":"10.1109/IEACon51066.2021.9654631","DOIUrl":"https://doi.org/10.1109/IEACon51066.2021.9654631","url":null,"abstract":"Synchronous reluctance motors (SynRMs) have attracted attention for various applications because they have no magnets and rotor windings. Thus, various methods for rotor position sensorless control of SynRMs at low speeds have been proposed. Similarly, we previously introduced a method for rotor position sensorless control of SynRMs at very low speeds. The proposed control method superimposes a high-frequency current with a small constant amplitude using a high-frequency current control system. The $q$-axis inductance of the SynRM considerably changes according to the load. In this paper, we show that the rotor position estimation error converges even under a large error between the predefined and real settings of the $q$-axis inductance of the SynRM model for position estimation when using the proposed method. Experimental results confirm that the proposed method achieves robust rotor position sensorless control against $q$-axis inductance variations even at very low speeds.","PeriodicalId":397039,"journal":{"name":"2021 IEEE Industrial Electronics and Applications Conference (IEACon)","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125009372","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 : 2021-11-22DOI: 10.1109/IEACon51066.2021.9654695
Sayyed Haleem Shah, Xiao-yuan Wang, Usman Abubakar, Sadiq ur Rehman
Electrical machines designed with multiple three-phase winding sets are widely proposed for high current and high power applications. Moreover, they are considered the preferred choice for fault-tolerant applications due to their redundant structure enabling the machine to work under partial operating conditions. However, under partial operating conditions, when a single or multiple three-phase winding sets are disconnected, the normal operating behavior of the machine is degraded, enabling the machine to work with a reduced level of efficiency. Under this condition, the machine's healthy three-phase winding sets can be overloaded to keep the machine operating with the same torque level as under the healthy condition. It increases the risk of three-phase winding sets insulation failure, which may ultimately result in reducing the machine life span, reliability or even result in the machine's thermal failure. This paper presents the thermal analysis for a multi three-phase sector winding machine having a water-jacket cooling system. A coupled electromagnetic FEA and thermal analysis is presented by first investigating the machines electromagnetic performance and then coupling it to the thermal model (Lumped parameter thermal network) for accurate temperature prediction. Furthermore, a parametric sensitivity analysis is presented under three-phase winding sets normal, partial and partial overload conditions. The different thermal design variables for the parametric sensitivity analysis are carefully chosen, and the thermal behavior of the prototype machine is fully investigated. The detailed parametric sensitivity analysis leads to an optimized design model of the prototype machine with improved thermal behavior, particularly under partial overload operating conditions.
{"title":"Thermal Parametric Sensitivity Analysis of an IPMSM With Multi Three-Phase Sector Windings Topology Under Normal, Partial and Partial Overload Operating Conditions","authors":"Sayyed Haleem Shah, Xiao-yuan Wang, Usman Abubakar, Sadiq ur Rehman","doi":"10.1109/IEACon51066.2021.9654695","DOIUrl":"https://doi.org/10.1109/IEACon51066.2021.9654695","url":null,"abstract":"Electrical machines designed with multiple three-phase winding sets are widely proposed for high current and high power applications. Moreover, they are considered the preferred choice for fault-tolerant applications due to their redundant structure enabling the machine to work under partial operating conditions. However, under partial operating conditions, when a single or multiple three-phase winding sets are disconnected, the normal operating behavior of the machine is degraded, enabling the machine to work with a reduced level of efficiency. Under this condition, the machine's healthy three-phase winding sets can be overloaded to keep the machine operating with the same torque level as under the healthy condition. It increases the risk of three-phase winding sets insulation failure, which may ultimately result in reducing the machine life span, reliability or even result in the machine's thermal failure. This paper presents the thermal analysis for a multi three-phase sector winding machine having a water-jacket cooling system. A coupled electromagnetic FEA and thermal analysis is presented by first investigating the machines electromagnetic performance and then coupling it to the thermal model (Lumped parameter thermal network) for accurate temperature prediction. Furthermore, a parametric sensitivity analysis is presented under three-phase winding sets normal, partial and partial overload conditions. The different thermal design variables for the parametric sensitivity analysis are carefully chosen, and the thermal behavior of the prototype machine is fully investigated. The detailed parametric sensitivity analysis leads to an optimized design model of the prototype machine with improved thermal behavior, particularly under partial overload operating conditions.","PeriodicalId":397039,"journal":{"name":"2021 IEEE Industrial Electronics and Applications Conference (IEACon)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121375751","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 : 2021-11-22DOI: 10.1109/IEACon51066.2021.9654652
Hai-Jiao Guo, Jinya Yoshida, T. Ishihara
This paper proposes a simple simulation model of switched reluctance motors as well as a new speed control method of SRGs suitable for wind power generation systems. The proposed simple SRG simulation model not only to confirm its effectiveness, as well as can be widely used in other studies using SRGs. The proposed new speed control method not only control the speed of SRGs but also considering the power generation.
{"title":"A Simulation Model and New Speed Control Method of Switched Reluctance Generator for Wind-generator Systems","authors":"Hai-Jiao Guo, Jinya Yoshida, T. Ishihara","doi":"10.1109/IEACon51066.2021.9654652","DOIUrl":"https://doi.org/10.1109/IEACon51066.2021.9654652","url":null,"abstract":"This paper proposes a simple simulation model of switched reluctance motors as well as a new speed control method of SRGs suitable for wind power generation systems. The proposed simple SRG simulation model not only to confirm its effectiveness, as well as can be widely used in other studies using SRGs. The proposed new speed control method not only control the speed of SRGs but also considering the power generation.","PeriodicalId":397039,"journal":{"name":"2021 IEEE Industrial Electronics and Applications Conference (IEACon)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122490875","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 : 2021-11-22DOI: 10.1109/IEACon51066.2021.9654752
C. S. K. Abdulah, M. Rohani, B. Ismail, M. Isa, A. S. Rosmi, W. Mustafa
Electrical treeing lead to a major cause of a breakdown in solid insulation. Thus reduced solid insulation performance by degrading the insulation. Hence, it is important to study the electrical treeing and learn the root cause of the treeing formation. In this paper, the performances of median, wiener, and gaussian filters in restoring noisy images are studied based on electrical tree images. The electrical tree colour images is being transform into grayscale images, noisy images using impulse noise (salt and pepper), and finally motion blur are applied. Even though, there are several number of filters available, this paper focus on median, wiener, gaussian, and combination of the filters. In the end, comparison between these filters is made to study the efficiency using PSNR, SNR, and MSE in graph form.
{"title":"Comparison of Image Restoration using Median, Wiener, and Gaussian Filtering Techniques based on Electrical Tree","authors":"C. S. K. Abdulah, M. Rohani, B. Ismail, M. Isa, A. S. Rosmi, W. Mustafa","doi":"10.1109/IEACon51066.2021.9654752","DOIUrl":"https://doi.org/10.1109/IEACon51066.2021.9654752","url":null,"abstract":"Electrical treeing lead to a major cause of a breakdown in solid insulation. Thus reduced solid insulation performance by degrading the insulation. Hence, it is important to study the electrical treeing and learn the root cause of the treeing formation. In this paper, the performances of median, wiener, and gaussian filters in restoring noisy images are studied based on electrical tree images. The electrical tree colour images is being transform into grayscale images, noisy images using impulse noise (salt and pepper), and finally motion blur are applied. Even though, there are several number of filters available, this paper focus on median, wiener, gaussian, and combination of the filters. In the end, comparison between these filters is made to study the efficiency using PSNR, SNR, and MSE in graph form.","PeriodicalId":397039,"journal":{"name":"2021 IEEE Industrial Electronics and Applications Conference (IEACon)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128132836","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 : 2021-11-22DOI: 10.1109/IEACon51066.2021.9654682
M. Nageh, M. Abdullah, Belal Yousef
Photovoltaic (PV) solar system has developed significantly from an independent to a large scale on-grid energy system. The energy output performance is affected by the system's reliability, which depends on its various internal components and configurations. This study aims to determine the optimum number of series modules, parallel strings, central inverters and combiner boxes of a 1-MW large scale solar (LSS) system. Also, this paper evaluates the system's reliability for different inverters configurations based on three solar PV systems i) fixed-tilt angle, ii) one-axis tracker and iii) two-axis tracker PV systems. The system's reliability is evaluated by using Fault Tree Analysis (FTA). Furthermore, this paper performs cost analysis of the LSS system in terms of Levelised Cost of Energy (LCOE). The results showed that, single/dual axis PV system is preferred against fixed-tilt angle system as it gives lower LCOE. However, single/dual axis PV system reduces the system's reliability especially when more central inverters are used for the PV system.
{"title":"Reliability Evaluation and Cost Analysis for Optimized Large Scale Solar PV System","authors":"M. Nageh, M. Abdullah, Belal Yousef","doi":"10.1109/IEACon51066.2021.9654682","DOIUrl":"https://doi.org/10.1109/IEACon51066.2021.9654682","url":null,"abstract":"Photovoltaic (PV) solar system has developed significantly from an independent to a large scale on-grid energy system. The energy output performance is affected by the system's reliability, which depends on its various internal components and configurations. This study aims to determine the optimum number of series modules, parallel strings, central inverters and combiner boxes of a 1-MW large scale solar (LSS) system. Also, this paper evaluates the system's reliability for different inverters configurations based on three solar PV systems i) fixed-tilt angle, ii) one-axis tracker and iii) two-axis tracker PV systems. The system's reliability is evaluated by using Fault Tree Analysis (FTA). Furthermore, this paper performs cost analysis of the LSS system in terms of Levelised Cost of Energy (LCOE). The results showed that, single/dual axis PV system is preferred against fixed-tilt angle system as it gives lower LCOE. However, single/dual axis PV system reduces the system's reliability especially when more central inverters are used for the PV system.","PeriodicalId":397039,"journal":{"name":"2021 IEEE Industrial Electronics and Applications Conference (IEACon)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132109223","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 : 2021-11-22DOI: 10.1109/IEACon51066.2021.9654587
M. Talha, S. Raihan, Nasrudin Abd. Rahim
Single-phase low-power PV generators will be a dominant contributor to electricity in microgrids. However, PV-inverters are susceptible to input and output disturbances. On the one hand, the inverters disconnect entirely for a few minutes during grid sags. On the other hand, the inverter's power output drops during low solar insolence, leading to grid voltage flickers. Moreover, the conventional low voltage ride-through (LVRT) solutions can only handle fixed intensity sags, while the real grid environment may have milder to severe sags. This paper aims to present an LVRT strategy to handle all kinds of sags and compensate for rapid solar intermittencies while ensuring maximum power point tracking (MPPT) operation. A small energy storage buffer is coupled to the inverter's DC-link to compensate for AC and DC disturbances. During sags, the excess energy in the inverter's DC-link is absorbed by the buffer. In contrast, the buffer provides the deficit energy to maintain the constant power output in solar intermittencies. Experimental results show that the inverter can sustain variable intensity sags and compensate for rapid solar intermittencies. Moreover, the inverter always ensures MPPT operation and also provides reactive power during sags.
{"title":"AC/DC Fault-ride-through Control for Single-phase PV Inverter","authors":"M. Talha, S. Raihan, Nasrudin Abd. Rahim","doi":"10.1109/IEACon51066.2021.9654587","DOIUrl":"https://doi.org/10.1109/IEACon51066.2021.9654587","url":null,"abstract":"Single-phase low-power PV generators will be a dominant contributor to electricity in microgrids. However, PV-inverters are susceptible to input and output disturbances. On the one hand, the inverters disconnect entirely for a few minutes during grid sags. On the other hand, the inverter's power output drops during low solar insolence, leading to grid voltage flickers. Moreover, the conventional low voltage ride-through (LVRT) solutions can only handle fixed intensity sags, while the real grid environment may have milder to severe sags. This paper aims to present an LVRT strategy to handle all kinds of sags and compensate for rapid solar intermittencies while ensuring maximum power point tracking (MPPT) operation. A small energy storage buffer is coupled to the inverter's DC-link to compensate for AC and DC disturbances. During sags, the excess energy in the inverter's DC-link is absorbed by the buffer. In contrast, the buffer provides the deficit energy to maintain the constant power output in solar intermittencies. Experimental results show that the inverter can sustain variable intensity sags and compensate for rapid solar intermittencies. Moreover, the inverter always ensures MPPT operation and also provides reactive power during sags.","PeriodicalId":397039,"journal":{"name":"2021 IEEE Industrial Electronics and Applications Conference (IEACon)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128002693","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 : 2021-11-22DOI: 10.1109/IEACon51066.2021.9654573
N. S. M. Sharifuddin, N. Tan, C. L. Toh, A. Ramli
Phase-Shift Modulation (PSM) strategy had been widely used in Three-Phase Bidirectional Isolated DC-DC Converter (3P-BIDC). Nevertheless, this conventional high frequency PSM method is more suitable for medium and rated load application. In light-load conditions (0-0.3 p.u.), the power efficiency may drop to less than 65%. Thus, this paper proposes an enhanced switching strategy by introducing a low frequency burst-mode signal to control the number of active PSM cycle over one burst cycle. A 150-V, 1.5-kW, 3P-BIDC prototype is developed for laboratory testing. This prototype is first evaluated with the conventional PSM strategy for wide range of loads. Then the proposed method is applied for light-load condition evaluation. The experimental results prove that an average of 90% power efficiency could be achieved under light load condition.
{"title":"Implementation of Three-Phase Bidirectional Isolated DC-DC Converter with Improved Light-Load Efficiency","authors":"N. S. M. Sharifuddin, N. Tan, C. L. Toh, A. Ramli","doi":"10.1109/IEACon51066.2021.9654573","DOIUrl":"https://doi.org/10.1109/IEACon51066.2021.9654573","url":null,"abstract":"Phase-Shift Modulation (PSM) strategy had been widely used in Three-Phase Bidirectional Isolated DC-DC Converter (3P-BIDC). Nevertheless, this conventional high frequency PSM method is more suitable for medium and rated load application. In light-load conditions (0-0.3 p.u.), the power efficiency may drop to less than 65%. Thus, this paper proposes an enhanced switching strategy by introducing a low frequency burst-mode signal to control the number of active PSM cycle over one burst cycle. A 150-V, 1.5-kW, 3P-BIDC prototype is developed for laboratory testing. This prototype is first evaluated with the conventional PSM strategy for wide range of loads. Then the proposed method is applied for light-load condition evaluation. The experimental results prove that an average of 90% power efficiency could be achieved under light load condition.","PeriodicalId":397039,"journal":{"name":"2021 IEEE Industrial Electronics and Applications Conference (IEACon)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125785478","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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