Pub Date : 2022-02-01DOI: 10.1109/pedstc53976.2022.9767277
Sina Bajelvand, A. Y. Varjani, Amir Babaki, S. Vaez‐Zadeh, Alireza Jafari-Natanzi
In wireless power transfer (WPT) systems, efficiency and battery charging speed are very important factors. Due to the wide range of loads, achieving high efficiency at a constant frequency is not possible in such systems. Also, choosing the right charging scenario can have a significant effect on improving the charging speed. In this paper, a series-series (SS) WPT system with a semi-active rectifier (SAR) is proposed, which uses the variable frequency and the impedance matching mechanism simultaneously to achieve the highest efficiency. Also, to increase the charging speed at the beginning of the battery charging, a constant power-constant voltage (CP-CV) charging algorithm is used.
{"title":"Design of High-Efficiency WPT Battery Charging System with Constant Power and Voltage","authors":"Sina Bajelvand, A. Y. Varjani, Amir Babaki, S. Vaez‐Zadeh, Alireza Jafari-Natanzi","doi":"10.1109/pedstc53976.2022.9767277","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767277","url":null,"abstract":"In wireless power transfer (WPT) systems, efficiency and battery charging speed are very important factors. Due to the wide range of loads, achieving high efficiency at a constant frequency is not possible in such systems. Also, choosing the right charging scenario can have a significant effect on improving the charging speed. In this paper, a series-series (SS) WPT system with a semi-active rectifier (SAR) is proposed, which uses the variable frequency and the impedance matching mechanism simultaneously to achieve the highest efficiency. Also, to increase the charging speed at the beginning of the battery charging, a constant power-constant voltage (CP-CV) charging algorithm is used.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121830638","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 : 2022-02-01DOI: 10.1109/pedstc53976.2022.9767509
A. Ebrahimi, E. Babaei, S. Mousavi
In this paper, an improved hybrid method using an auxiliary circuit to create voltage balancing of dc link capacitors of Diode-Clamped Converter (DCC) and add voltage boost capability is proposed. Dc-link capacitors voltage deviation is the main problem of DCCs that increases the voltage stress on switches and produces lowest order harmonics at the output. Also, these types of converters inherently reduce the output voltage. In the proposed method, a modified quasi-Z-source (MqZS) network is used as an auxiliary circuit for a five-level three-phase DCC to solve the voltage deviation on capacitors and add voltage boost capability to it. A modulation method is also proposed to control the shoot-through state to boost output voltage of converter. The performance of MqZS network to balancing voltage of dc-link capacitors, output voltage boost capability and efficiency of the modulation method are proved by the simulation results.
{"title":"Diode-Clamped Multilevel Converter Voltage Balancing Using Single Modified Quasi-Z-Source Network","authors":"A. Ebrahimi, E. Babaei, S. Mousavi","doi":"10.1109/pedstc53976.2022.9767509","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767509","url":null,"abstract":"In this paper, an improved hybrid method using an auxiliary circuit to create voltage balancing of dc link capacitors of Diode-Clamped Converter (DCC) and add voltage boost capability is proposed. Dc-link capacitors voltage deviation is the main problem of DCCs that increases the voltage stress on switches and produces lowest order harmonics at the output. Also, these types of converters inherently reduce the output voltage. In the proposed method, a modified quasi-Z-source (MqZS) network is used as an auxiliary circuit for a five-level three-phase DCC to solve the voltage deviation on capacitors and add voltage boost capability to it. A modulation method is also proposed to control the shoot-through state to boost output voltage of converter. The performance of MqZS network to balancing voltage of dc-link capacitors, output voltage boost capability and efficiency of the modulation method are proved by the simulation results.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122022411","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 : 2022-02-01DOI: 10.1109/PEDSTC53976.2022.9767210
M. Hajilou, H. Farzanehfard
In this paper, a soft switched non-isolated high step-up DC-DC converter based on combination of buck-boost and switched resonator converters is proposed which is the combination of a buck-boost and a switched resonator converter. To reduce the converter semiconductor elements, one switch of the switched resonator structure is shared with the buck-boost structure. Soft switching condition for both switches is established without using any axillary switch, also, all diodes except one are turned OFF under ZCS condition which has mitigated the reverse recovery problem. Semiconductor elements soft-switching operation has reduced the converter switching losses and contributed to increased efficiency. In the continuation of this article, the proposed converter operational principle and steady-state analysis are discussed. The proposed converter is simulated by PSpice software at 24V input, 350V output and 200W, and results are presented. The simulation results confirm the converter analysis and operation.
{"title":"Soft Switched Non-Isolated High Step-up DC-DC Converter Based on Combination of Buck-Boost and Switched Resonator Converters","authors":"M. Hajilou, H. Farzanehfard","doi":"10.1109/PEDSTC53976.2022.9767210","DOIUrl":"https://doi.org/10.1109/PEDSTC53976.2022.9767210","url":null,"abstract":"In this paper, a soft switched non-isolated high step-up DC-DC converter based on combination of buck-boost and switched resonator converters is proposed which is the combination of a buck-boost and a switched resonator converter. To reduce the converter semiconductor elements, one switch of the switched resonator structure is shared with the buck-boost structure. Soft switching condition for both switches is established without using any axillary switch, also, all diodes except one are turned OFF under ZCS condition which has mitigated the reverse recovery problem. Semiconductor elements soft-switching operation has reduced the converter switching losses and contributed to increased efficiency. In the continuation of this article, the proposed converter operational principle and steady-state analysis are discussed. The proposed converter is simulated by PSpice software at 24V input, 350V output and 200W, and results are presented. The simulation results confirm the converter analysis and operation.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"222 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123302547","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 : 2022-02-01DOI: 10.1109/PEDSTC53976.2022.9767354
Pooriya Zandi, R. Beiranvand
Wireless power transmission (WPT) has been developed as a new method for charging electrical devices. In recent years, many articles have been presented in this field, and in this article, several examples have been reviewed and analyzed. Using resonance method in wireless power transmission improves system performance. Methods are proposed to match the impedance of the transmitter and receiver side and to adjust the frequency of the resonant circuit. In this paper, we will show that at a constant switching frequency with changes in the coupling coefficient, the circuit will have a high efficiency.
{"title":"A Novel Analysis of the Wireless Battery Chargers For Electrical Vehicle Applications with Variable Coupling Coefficient","authors":"Pooriya Zandi, R. Beiranvand","doi":"10.1109/PEDSTC53976.2022.9767354","DOIUrl":"https://doi.org/10.1109/PEDSTC53976.2022.9767354","url":null,"abstract":"Wireless power transmission (WPT) has been developed as a new method for charging electrical devices. In recent years, many articles have been presented in this field, and in this article, several examples have been reviewed and analyzed. Using resonance method in wireless power transmission improves system performance. Methods are proposed to match the impedance of the transmitter and receiver side and to adjust the frequency of the resonant circuit. In this paper, we will show that at a constant switching frequency with changes in the coupling coefficient, the circuit will have a high efficiency.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"238 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114238082","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 : 2022-02-01DOI: 10.1109/pedstc53976.2022.9767371
Kamran Moradi, Hêmin Sheikhahmadi, Pourya Zamani, Q. Shafiee, H. Bevrani
The complexity of microgrid (MG) control has been a point of contention when implementing an appropriate controller due to factors such as grid distortion, external disturbances, uncertainties, and the inaccessibility of these applications to an exact model. To address this, designers must either reduce the sensitivity and accuracy of control objectives to an acceptable level, which is not always possible, or use more computationally complex controllers. The proportional-integral (PI) controller is the most popular in practice due to its simple and straightforward structure. Numerous algorithms have been presented to well-tune the parameters of this type of controller. The primary difficulty in determining the PI controller coefficients is extracting an accurate model of the studied system. As a result, recent consideration has been given to control methods based on system input/output data measurements. This paper proposes a data-driven method for tuning PI controller coefficients referred to as iterative feedback tuning (IFT) to control the inverter-side current of a three-phase grid-connected voltage source inverter (VSI) under grid distortion and various grid frequency conditions. Simulation results are provided to validate the proposed method.
{"title":"A Data-driven PI Control of Grid-Connected Voltage Source Inverters Interfaced with LCL Filter","authors":"Kamran Moradi, Hêmin Sheikhahmadi, Pourya Zamani, Q. Shafiee, H. Bevrani","doi":"10.1109/pedstc53976.2022.9767371","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767371","url":null,"abstract":"The complexity of microgrid (MG) control has been a point of contention when implementing an appropriate controller due to factors such as grid distortion, external disturbances, uncertainties, and the inaccessibility of these applications to an exact model. To address this, designers must either reduce the sensitivity and accuracy of control objectives to an acceptable level, which is not always possible, or use more computationally complex controllers. The proportional-integral (PI) controller is the most popular in practice due to its simple and straightforward structure. Numerous algorithms have been presented to well-tune the parameters of this type of controller. The primary difficulty in determining the PI controller coefficients is extracting an accurate model of the studied system. As a result, recent consideration has been given to control methods based on system input/output data measurements. This paper proposes a data-driven method for tuning PI controller coefficients referred to as iterative feedback tuning (IFT) to control the inverter-side current of a three-phase grid-connected voltage source inverter (VSI) under grid distortion and various grid frequency conditions. Simulation results are provided to validate the proposed method.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114634633","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 : 2022-02-01DOI: 10.1109/pedstc53976.2022.9767263
Omolbanin Taqavi, Seyyed Mehdi Mirimani
The recent increases in the consumption of permanent magnet machines emphasizes the importance of designing the ones with interior permanent magnet (IPM) structures that have enhanced performances. This study designed and analyzed the rotor shapes of IPM machines. In this regard, six types of magnets for dual rotor axial-flux permanent magnet (AFPM) were modeled and analyzed using 3D finite element method (FEM). In order to minimize the number of variables of this study, all of the parameters including the size of the stators, machine’s height, diameter, and so on are considered to be fixed and only the magnet shapes were modified to compare the machine’s characteristics. When the machine’s performances were compared as a function of rotor shape, the machine with sector-like magnet demonstrated the best results in terms of electromagnetic torque, torque ripple, air-gap flux density, and back electromotive force (EMF), as well as total harmonic distortion (THD).
{"title":"Analysis of Rotor Shapes for Double-Sided Axial-Flux Interior Permanent Magnet Machine","authors":"Omolbanin Taqavi, Seyyed Mehdi Mirimani","doi":"10.1109/pedstc53976.2022.9767263","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767263","url":null,"abstract":"The recent increases in the consumption of permanent magnet machines emphasizes the importance of designing the ones with interior permanent magnet (IPM) structures that have enhanced performances. This study designed and analyzed the rotor shapes of IPM machines. In this regard, six types of magnets for dual rotor axial-flux permanent magnet (AFPM) were modeled and analyzed using 3D finite element method (FEM). In order to minimize the number of variables of this study, all of the parameters including the size of the stators, machine’s height, diameter, and so on are considered to be fixed and only the magnet shapes were modified to compare the machine’s characteristics. When the machine’s performances were compared as a function of rotor shape, the machine with sector-like magnet demonstrated the best results in terms of electromagnetic torque, torque ripple, air-gap flux density, and back electromotive force (EMF), as well as total harmonic distortion (THD).","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117276068","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 : 2022-02-01DOI: 10.1109/pedstc53976.2022.9767296
Amir Hossein Dabbagh, Hamed Arvani, H. Gholizadeh, E. Afjei
Extensive research on electric vehicles (EVs) has been made as the popularity has been increasing in recent years. Many studies show the advantages and necessities of the bidirectional on-board chargers (OBCs) implantation in EVs. One of the essential parts of an EV’s OBC is power factor correction (PFC) converter. Nowadays, boost types PFCs have been widely used. The main problem with these converters is that they cannot provide a wide output voltage range. This work presents a hybrid PFC-Inverter for bidirectional EVs charging applications. MATLAB/Simulink is used to validate the proposed converter, and simulations are performed from 10% of the rated power to full load in PFC and inverter operation modes separately. The obtained results indicate a unity power factor (PF) and a total harmonic distortion (THD) of the input current at 3.65% in charging mode and a THD of the output current at 2.18% in discharging mode at rated power and voltages that agrees with standards.
{"title":"A SiC-Based Hybrid PFC-Inverter for On-board EV Chargers","authors":"Amir Hossein Dabbagh, Hamed Arvani, H. Gholizadeh, E. Afjei","doi":"10.1109/pedstc53976.2022.9767296","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767296","url":null,"abstract":"Extensive research on electric vehicles (EVs) has been made as the popularity has been increasing in recent years. Many studies show the advantages and necessities of the bidirectional on-board chargers (OBCs) implantation in EVs. One of the essential parts of an EV’s OBC is power factor correction (PFC) converter. Nowadays, boost types PFCs have been widely used. The main problem with these converters is that they cannot provide a wide output voltage range. This work presents a hybrid PFC-Inverter for bidirectional EVs charging applications. MATLAB/Simulink is used to validate the proposed converter, and simulations are performed from 10% of the rated power to full load in PFC and inverter operation modes separately. The obtained results indicate a unity power factor (PF) and a total harmonic distortion (THD) of the input current at 3.65% in charging mode and a THD of the output current at 2.18% in discharging mode at rated power and voltages that agrees with standards.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126780644","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 : 2022-02-01DOI: 10.1109/pedstc53976.2022.9767205
Shokoufeh Valadkhani, M. Mirsalim, J. Moghani
The suggested converter enjoys a wide output range from almost zero to 50V/20A. The crucial issue of applications with expansive voltage capacities such as cathodic protection applications, electric vehicle (EV) battery chargers, and photo-voltaic inverters is that the zero-voltage-switching (ZVS) is hardly attained at low outputs. The proposed converter employs auxiliary passive components to surmount this problem. Moreover, a parallel capacitor is implemented at the transformer secondary side to decrease the effect of the parasitic capacitors and provide a robust control system with less sensitivity to parasitic elements. Theoretical calculations and simulation outcomes confirm the veracity of the suggested method.
{"title":"Variable Output Voltage DC/DC Full-Bridge Converter with Load-Independent Zero-Voltage-Switching Control Method","authors":"Shokoufeh Valadkhani, M. Mirsalim, J. Moghani","doi":"10.1109/pedstc53976.2022.9767205","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767205","url":null,"abstract":"The suggested converter enjoys a wide output range from almost zero to 50V/20A. The crucial issue of applications with expansive voltage capacities such as cathodic protection applications, electric vehicle (EV) battery chargers, and photo-voltaic inverters is that the zero-voltage-switching (ZVS) is hardly attained at low outputs. The proposed converter employs auxiliary passive components to surmount this problem. Moreover, a parallel capacitor is implemented at the transformer secondary side to decrease the effect of the parasitic capacitors and provide a robust control system with less sensitivity to parasitic elements. Theoretical calculations and simulation outcomes confirm the veracity of the suggested method.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131176868","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 : 2022-02-01DOI: 10.1109/pedstc53976.2022.9767241
Kavian Kamalinejad, H. Iman‐Eini
Single-stage DC-AC power conversion is investigated due to high efficiency and a more straightforward structure than the two-stage equivalent system, where a boost DC-DC converter is needed. Moreover, multilevel inverters offer various advantages in terms of output voltage quality, electromagnetic interference, etc. Therefore, boost multilevel inverters can be used in many applications like renewable energy sources, electric vehicles, and battery applications. In this paper, a new boost multilevel inverter topology, in which boost ratio and the number of output voltage levels can increase to any number, is proposed. The asymmetrical voltage of capacitors in the proposed topology creates more voltage levels without increasing the number of components. In addition, capacitor voltages are automatically balanced and no extra voltage sensors or auxiliary supplies are required.
{"title":"An Asymmetrical T-Type Boost Multilevel Inverter Topology","authors":"Kavian Kamalinejad, H. Iman‐Eini","doi":"10.1109/pedstc53976.2022.9767241","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767241","url":null,"abstract":"Single-stage DC-AC power conversion is investigated due to high efficiency and a more straightforward structure than the two-stage equivalent system, where a boost DC-DC converter is needed. Moreover, multilevel inverters offer various advantages in terms of output voltage quality, electromagnetic interference, etc. Therefore, boost multilevel inverters can be used in many applications like renewable energy sources, electric vehicles, and battery applications. In this paper, a new boost multilevel inverter topology, in which boost ratio and the number of output voltage levels can increase to any number, is proposed. The asymmetrical voltage of capacitors in the proposed topology creates more voltage levels without increasing the number of components. In addition, capacitor voltages are automatically balanced and no extra voltage sensors or auxiliary supplies are required.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130221693","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 : 2022-02-01DOI: 10.1109/PEDSTC53976.2022.9767238
S. Khalili, M. Packnezhad, H. Farzanehfard
A fully soft-switched high step-down converter with minimum number of passive and active components is presented in this paper, which is suitable for non-isolated DC/DC applications. High voltage conversion ratio is achieved by a pair of coupled inductors while zero voltage switching condition for the main switch along with zero current switching condition for the main diode at turn-off are provided by adding only an auxiliary active switch and a coupled inductor to the basic buck converter. Thus, the converter is optimum in terms of component count among the soft-switched high step-down converters. The mentioned converter advantages have contributed to the realization of high efficiency. To confirm the theoretical operation and analysis of the converter, a laboratory prototype circuit is implemented for 155-to-24V at 100W and 100kHz.
{"title":"Fully Soft-switched Non-isolated High Step-down DC/DC Converter with Minimum Component Count","authors":"S. Khalili, M. Packnezhad, H. Farzanehfard","doi":"10.1109/PEDSTC53976.2022.9767238","DOIUrl":"https://doi.org/10.1109/PEDSTC53976.2022.9767238","url":null,"abstract":"A fully soft-switched high step-down converter with minimum number of passive and active components is presented in this paper, which is suitable for non-isolated DC/DC applications. High voltage conversion ratio is achieved by a pair of coupled inductors while zero voltage switching condition for the main switch along with zero current switching condition for the main diode at turn-off are provided by adding only an auxiliary active switch and a coupled inductor to the basic buck converter. Thus, the converter is optimum in terms of component count among the soft-switched high step-down converters. The mentioned converter advantages have contributed to the realization of high efficiency. To confirm the theoretical operation and analysis of the converter, a laboratory prototype circuit is implemented for 155-to-24V at 100W and 100kHz.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129931385","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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