Pub Date : 2022-02-01DOI: 10.1109/pedstc53976.2022.9767244
M. Nikbakht, Sohrab Abbasian, Mohammad Farsijani, K. Abbaszadeh
This essay presents a new high step-up converter based on coupled-inductor and voltage doubler-rectifier. The output voltage of the topology is enhanced by increasing duty cycle. Recycling the energy of leakage inductances can help to reduce the voltage spikes on the power switches. For this reason, we can use a switch with low drain to source resistance. The output diode of this converter is turned off in zero current switching condition due to the leakage inductances. In this converter when the duty cycle and turn ratios are 0.57 and 1 respectively, the voltage gain is around 22. A comparison of the proposed converter with a conventional quadratic converter with similar characteristics was also performed. The results indicate that the proposed converter is more efficient than the traditional converter and can achieve ultra high voltage gain without working at extreme duty cycle.
{"title":"An ultra high gain Double switch quadratic boost coupled inductor based converter","authors":"M. Nikbakht, Sohrab Abbasian, Mohammad Farsijani, K. Abbaszadeh","doi":"10.1109/pedstc53976.2022.9767244","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767244","url":null,"abstract":"This essay presents a new high step-up converter based on coupled-inductor and voltage doubler-rectifier. The output voltage of the topology is enhanced by increasing duty cycle. Recycling the energy of leakage inductances can help to reduce the voltage spikes on the power switches. For this reason, we can use a switch with low drain to source resistance. The output diode of this converter is turned off in zero current switching condition due to the leakage inductances. In this converter when the duty cycle and turn ratios are 0.57 and 1 respectively, the voltage gain is around 22. A comparison of the proposed converter with a conventional quadratic converter with similar characteristics was also performed. The results indicate that the proposed converter is more efficient than the traditional converter and can achieve ultra high voltage gain without working at extreme duty cycle.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"31 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":"125171613","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/PEDSTC53976.2022.9767208
Mohammad Haei, A. Khoshooei, A. Khoshsaadat
Neutral Point (NP) voltage deviation is an inherent issue in Neutral Point Clamped (NPC) inverters. Beside, Common Mode Voltage (CMV) which leads to bearing currents (in motor drive applications) or leakage currents (in Photovoltaic applications) is another concern in the control of NPC inverters. To reduce the unequal voltage division between DC link capacitors in a Three Level NPC inverter, a new modulation scheme named Modified Virtual Space Vector Modulation (MVSVM) is proposed in this paper. In this modulation, virtual vectors are defined in way that both the objectives of DC voltage balancing as well as CMV reduction could be achieved. Unconditionally, this scheme can reduce the degree of inequality of the voltages across DC link capacitors with high accuracy for any modulation index and any load power factor. Moreover, common mode voltage is reduced to one sixth of DC link voltage. Simulation results using MATLAB software confirm the effectiveness of this modulation scheme.
{"title":"Unconditional Control of NPC Inverter by a Modified Virtual Space Vector Modulation","authors":"Mohammad Haei, A. Khoshooei, A. Khoshsaadat","doi":"10.1109/PEDSTC53976.2022.9767208","DOIUrl":"https://doi.org/10.1109/PEDSTC53976.2022.9767208","url":null,"abstract":"Neutral Point (NP) voltage deviation is an inherent issue in Neutral Point Clamped (NPC) inverters. Beside, Common Mode Voltage (CMV) which leads to bearing currents (in motor drive applications) or leakage currents (in Photovoltaic applications) is another concern in the control of NPC inverters. To reduce the unequal voltage division between DC link capacitors in a Three Level NPC inverter, a new modulation scheme named Modified Virtual Space Vector Modulation (MVSVM) is proposed in this paper. In this modulation, virtual vectors are defined in way that both the objectives of DC voltage balancing as well as CMV reduction could be achieved. Unconditionally, this scheme can reduce the degree of inequality of the voltages across DC link capacitors with high accuracy for any modulation index and any load power factor. Moreover, common mode voltage is reduced to one sixth of DC link voltage. Simulation results using MATLAB software confirm the effectiveness of this modulation scheme.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"4 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":"116668567","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/PEDSTC53976.2022.9767343
Marzieh Mohammadi Jouzdani, M. Shaneh, T. Nouri
This paper presents a high step-up DC-DC converter based on the built-in transformer (BIT). High voltage without more number of elements is achieved in the proposed converter. Moreover, the interlevead structure is used in this converter, causing low input current ripple. In addition, the voltage stress across power switches and diodes can be decreased, thanks to the passive clamp circuit. Meanwhile, due to the leakage inductance of BIT, not only turn-ON state for MOSFETS at zero current switching (ZCS) performace is provided but also ZCS turn-OFF state for all diodes is achieved.. Thus, reverse recovery problem of the power diodes is attenuated. Accroding to the above-mentioned advantages, the proposed converter is an interesting solution for high power applications. To verify the performance of the proposed converter PSIM simulation results of the proposed converter with 40-400V voltage conversion and 600W rated power are discussed in this paper.
{"title":"An Interleaved Non-isolated Step-up DC-DC Converter with Built-In Transformer For Renewable Energy Systems","authors":"Marzieh Mohammadi Jouzdani, M. Shaneh, T. Nouri","doi":"10.1109/PEDSTC53976.2022.9767343","DOIUrl":"https://doi.org/10.1109/PEDSTC53976.2022.9767343","url":null,"abstract":"This paper presents a high step-up DC-DC converter based on the built-in transformer (BIT). High voltage without more number of elements is achieved in the proposed converter. Moreover, the interlevead structure is used in this converter, causing low input current ripple. In addition, the voltage stress across power switches and diodes can be decreased, thanks to the passive clamp circuit. Meanwhile, due to the leakage inductance of BIT, not only turn-ON state for MOSFETS at zero current switching (ZCS) performace is provided but also ZCS turn-OFF state for all diodes is achieved.. Thus, reverse recovery problem of the power diodes is attenuated. Accroding to the above-mentioned advantages, the proposed converter is an interesting solution for high power applications. To verify the performance of the proposed converter PSIM simulation results of the proposed converter with 40-400V voltage conversion and 600W rated power are discussed in this paper.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"34 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":"126955283","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/pedstc53976.2022.9767357
Mohammad Amirkhani, M. Mirsalim
This paper introduces a new type of biased flux permanent magnet (BFPM) motor in which the PMs are located in the yoke and slot opening positions with the aim of torque ripple reduction and higher average torque compared to the doubly salient PM (DSPM) structures and better thermal management compared to flux-reversal PM (FRPM) and flux-switching PM (FSPM) topologies. In this structure the PMs in the yoke and slot opening positions are shifted with respect to each other which provides lower reluctance path for armature flux. Moreover, the efficiency of this structure is improved compared to the conventional BFPM. The PMs are placed circumferentially in the stator and the stator modules are mechanically isolated from each other which increase the fault tolerance property of the structure during short-circuited phase operation. The design optimization process along with electromagnetic performance is assessed with finite element method (FEM) and the no/full-load characteristics are also provided. Moreover, a comparative study is conducted to better understand the advantages of the proposed structure.
{"title":"An Improved Biased-Flux Doubly Salient Shifted Permanent Magnet Motor","authors":"Mohammad Amirkhani, M. Mirsalim","doi":"10.1109/pedstc53976.2022.9767357","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767357","url":null,"abstract":"This paper introduces a new type of biased flux permanent magnet (BFPM) motor in which the PMs are located in the yoke and slot opening positions with the aim of torque ripple reduction and higher average torque compared to the doubly salient PM (DSPM) structures and better thermal management compared to flux-reversal PM (FRPM) and flux-switching PM (FSPM) topologies. In this structure the PMs in the yoke and slot opening positions are shifted with respect to each other which provides lower reluctance path for armature flux. Moreover, the efficiency of this structure is improved compared to the conventional BFPM. The PMs are placed circumferentially in the stator and the stator modules are mechanically isolated from each other which increase the fault tolerance property of the structure during short-circuited phase operation. The design optimization process along with electromagnetic performance is assessed with finite element method (FEM) and the no/full-load characteristics are also provided. Moreover, a comparative study is conducted to better understand the advantages of the proposed structure.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"63 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":"127026264","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/pedstc53976.2022.9767443
Mohammad Shahabi, A. Khorsandi, S. H. Fathi
This paper presents a novel single-switch, high step-up DC/DC converter. The proposed converter operates in quasi-resonant (QR) mode, which presents many advantages. There are soft-switching conditions in the operation of this converter due to the leakage inductance (Lk) of the Coupled Inductor (CL). The power switch turns on under zero-voltage-switching (ZVS) condition. Besides, the diodes currents are zero during their switching process (ZCS). These features significantly reduce switching losses and increase the converter’s efficiency. In addition, the voltage gain of this converter is high due to the presence of CL in its structure. The operating principles and steady-state operation are discussed in each time interval. In order to verify the theoretical discussion, computer simulation is performed in Cadence/OrCAD software. The simulation results indicate validity of the converter specifications well.
{"title":"A Novel High Voltage Gain Quasi-Resonant Step-up DC/DC Converter with Soft-Switching","authors":"Mohammad Shahabi, A. Khorsandi, S. H. Fathi","doi":"10.1109/pedstc53976.2022.9767443","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767443","url":null,"abstract":"This paper presents a novel single-switch, high step-up DC/DC converter. The proposed converter operates in quasi-resonant (QR) mode, which presents many advantages. There are soft-switching conditions in the operation of this converter due to the leakage inductance (Lk) of the Coupled Inductor (CL). The power switch turns on under zero-voltage-switching (ZVS) condition. Besides, the diodes currents are zero during their switching process (ZCS). These features significantly reduce switching losses and increase the converter’s efficiency. In addition, the voltage gain of this converter is high due to the presence of CL in its structure. The operating principles and steady-state operation are discussed in each time interval. In order to verify the theoretical discussion, computer simulation is performed in Cadence/OrCAD software. The simulation results indicate validity of the converter specifications well.","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":"130247415","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/PEDSTC53976.2022.9767222
Saman Rezazade, Reza Naghash, S. Afjei
One of the most important parameters in wireless power transfer systems is the coupling factor that plays a paramount role in wireless power transfer systems because it affects the magnetic fields between transmitter and receiver. In this paper, the impact of coupling factors in different topologies is investigated. The most important topologies are Series-Series, Parallel-Parallel and Double-Sided LCC, which have salient features due to their characteristics. Also, the critical characteristics of wireless power transfer are output power and efficiency. Therefore, the influence of coupling factor variation on different topologies at three coupling factors is scrutinized based on distinctive distances. Due to the coupling factor variation, we can see output power and efficiency variation with changing load.
{"title":"Wireless Power Transfer Systems: The Coupling Factor Impact on Different Compensation Topologies","authors":"Saman Rezazade, Reza Naghash, S. Afjei","doi":"10.1109/PEDSTC53976.2022.9767222","DOIUrl":"https://doi.org/10.1109/PEDSTC53976.2022.9767222","url":null,"abstract":"One of the most important parameters in wireless power transfer systems is the coupling factor that plays a paramount role in wireless power transfer systems because it affects the magnetic fields between transmitter and receiver. In this paper, the impact of coupling factors in different topologies is investigated. The most important topologies are Series-Series, Parallel-Parallel and Double-Sided LCC, which have salient features due to their characteristics. Also, the critical characteristics of wireless power transfer are output power and efficiency. Therefore, the influence of coupling factor variation on different topologies at three coupling factors is scrutinized based on distinctive distances. Due to the coupling factor variation, we can see output power and efficiency variation with changing load.","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":"131589826","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/PEDSTC53976.2022.9767379
H. Gohari, Hadi Tarzamni, M. Sabahi
This paper proposes a family of interleaved DC-DC converters for high step-up applications based on multi-winding coupled inductors, which utilize inductive and capacitive approaches to transfer the input energy to the output load. The wide output load voltage level of the proposed converter depends on the switches duty cycle and the coupled inductor (CI) turns ratio. As some features, interleaving and cascading help the converters achieve high output voltage gain, low input current ripple, low-volume input inductor, and high reliability. Moreover, employing multi-winding coupled inductors improves output voltage gain, recycles the magnetic components stored energy, cancels circulating current, decreases switch voltage spikes, and reduces switch voltage stress. In this paper, operation analysis in steady-state mode, power loss evaluation, comparison study, and design considerations are presented to evaluate the capabilities. Finally, simulation test results are provided to verify theoretical analysis.
{"title":"Family of Interleaved High Step-up DC-DC Converters Utilizing Multi-Winding Coupled Inductors","authors":"H. Gohari, Hadi Tarzamni, M. Sabahi","doi":"10.1109/PEDSTC53976.2022.9767379","DOIUrl":"https://doi.org/10.1109/PEDSTC53976.2022.9767379","url":null,"abstract":"This paper proposes a family of interleaved DC-DC converters for high step-up applications based on multi-winding coupled inductors, which utilize inductive and capacitive approaches to transfer the input energy to the output load. The wide output load voltage level of the proposed converter depends on the switches duty cycle and the coupled inductor (CI) turns ratio. As some features, interleaving and cascading help the converters achieve high output voltage gain, low input current ripple, low-volume input inductor, and high reliability. Moreover, employing multi-winding coupled inductors improves output voltage gain, recycles the magnetic components stored energy, cancels circulating current, decreases switch voltage spikes, and reduces switch voltage stress. In this paper, operation analysis in steady-state mode, power loss evaluation, comparison study, and design considerations are presented to evaluate the capabilities. Finally, simulation test results are provided to verify theoretical analysis.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"30 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":"134060660","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/pedstc53976.2022.9767277
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}
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