Pub Date : 2022-02-01DOI: 10.1109/pedstc53976.2022.9767364
Behnam Nikmaram, Hamidreza Pairo, A. Nassaji
Lack of permanent magnet, low cost, significant constant-power speed range, high loadability, and high efficiency of SynRMs, have made these motors an attractive option In different applications such as traction and aircraft. Due to the saliency on the rotor of SynRM, calculating the exact value of the initial position is inevitable in sensitive applications. Also, Initial rotor position information is required to have high-performance control and achieve high starting torque. In this paper, different methods of initial rotor position estimation consisting of symmetric DC pulse injection, high frequency pulsating voltage injection, and high frequency square-wave signal injection are studied. These methods are described in procedure aspect, simulation under different rotor position conditions are discussed, and the performance of each method in different initial positions is surveyed. Finally, a comparative study between different methods in terms of performance accuracy, implementation complexity, convergence time, motor parameters dependency, and etc. based on simulation results are provided.
{"title":"Performance Investigation of Initial Rotor Position Estimation Methods in Synchronous Reluctance Motors","authors":"Behnam Nikmaram, Hamidreza Pairo, A. Nassaji","doi":"10.1109/pedstc53976.2022.9767364","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767364","url":null,"abstract":"Lack of permanent magnet, low cost, significant constant-power speed range, high loadability, and high efficiency of SynRMs, have made these motors an attractive option In different applications such as traction and aircraft. Due to the saliency on the rotor of SynRM, calculating the exact value of the initial position is inevitable in sensitive applications. Also, Initial rotor position information is required to have high-performance control and achieve high starting torque. In this paper, different methods of initial rotor position estimation consisting of symmetric DC pulse injection, high frequency pulsating voltage injection, and high frequency square-wave signal injection are studied. These methods are described in procedure aspect, simulation under different rotor position conditions are discussed, and the performance of each method in different initial positions is surveyed. Finally, a comparative study between different methods in terms of performance accuracy, implementation complexity, convergence time, motor parameters dependency, and etc. based on simulation results are provided.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"10 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":"131397010","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/pedstc53976.2022.9767279
R. Rouhani, Seyed Ehsan Abdollahi, Sayyed Asghar Gholamian
The rotor structure of synchronous reluctance machine (SynRM) involves some design complexities. These complexities make it impossible to employ a generalized design method valid for all machine topologies with the various number of rotor and stator slots till now. High amount of ripple in developed torque is a serious problem of SynRM that can be reduced by employing an effective design method. This paper presents a new SynRM rotor analytical design method with the target of reducing torque ripple while maintaining average torque. To this end, the proposed method is applied to a SynRM with 24 stator slots and 2, 3, and 4 rotor flux barriers. In order to evaluate the proposed method effectiveness, three rotors designed SynRMs electromagnetic performance is simulated using finite elements methods (FEM). It has been shown that the design parameters resulted by proposed analytical method is close to the optimal state obtained by preceding time consuming and complicated methods such as trial and error and optimization algorithms, etc.
{"title":"A Simple Analytical Method for Rotor Design of Synchronous Reluctance Machines","authors":"R. Rouhani, Seyed Ehsan Abdollahi, Sayyed Asghar Gholamian","doi":"10.1109/pedstc53976.2022.9767279","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767279","url":null,"abstract":"The rotor structure of synchronous reluctance machine (SynRM) involves some design complexities. These complexities make it impossible to employ a generalized design method valid for all machine topologies with the various number of rotor and stator slots till now. High amount of ripple in developed torque is a serious problem of SynRM that can be reduced by employing an effective design method. This paper presents a new SynRM rotor analytical design method with the target of reducing torque ripple while maintaining average torque. To this end, the proposed method is applied to a SynRM with 24 stator slots and 2, 3, and 4 rotor flux barriers. In order to evaluate the proposed method effectiveness, three rotors designed SynRMs electromagnetic performance is simulated using finite elements methods (FEM). It has been shown that the design parameters resulted by proposed analytical method is close to the optimal state obtained by preceding time consuming and complicated methods such as trial and error and optimization algorithms, etc.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"5 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":"131414971","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/pedstc53976.2022.9767424
H. Radmanesh, H. Jashnani, S. Pourjafar, M. Maalandish
In this work, a novel topology of high voltage rate DC-DC topology with high output voltage and high efficiency is proposed for photovoltaic application according to magnetic inductor and switching-capacitor unit (SCU). SCU increases the output voltage and acts like a voltage clamp and decreases the maximum blocking voltage of the switch. Thus, a low rated and cost power switch can be used in the recommended topology. Additionally, in this converter one magnetic core is used. The magnetic inductor technique is one method to enhance the output voltage without increase of the MOSFET duty cycle which is utilized in the proposed converter. As a result, using magnetic inductor and SCU, the output voltage of the recommended topology is increased with small peak voltage of the semiconductor, low elements count, low switch loss, and high power. The other benefit of the presented topology is the zero-voltage switching (ZVS) and zero-current switching (ZCS) of diodes. In order to demonstrate the accomplishment of the proposed structure, the technological expression, numerical analysis, and comparison survey with same family DC-DC converters are prepared. Eventually, experimental results with 200 W load power are presented to verify the mathematical survey.
{"title":"Analyze and Implementation of High Gain DC-DC Topology Recommended for Renewable Power Generation","authors":"H. Radmanesh, H. Jashnani, S. Pourjafar, M. Maalandish","doi":"10.1109/pedstc53976.2022.9767424","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767424","url":null,"abstract":"In this work, a novel topology of high voltage rate DC-DC topology with high output voltage and high efficiency is proposed for photovoltaic application according to magnetic inductor and switching-capacitor unit (SCU). SCU increases the output voltage and acts like a voltage clamp and decreases the maximum blocking voltage of the switch. Thus, a low rated and cost power switch can be used in the recommended topology. Additionally, in this converter one magnetic core is used. The magnetic inductor technique is one method to enhance the output voltage without increase of the MOSFET duty cycle which is utilized in the proposed converter. As a result, using magnetic inductor and SCU, the output voltage of the recommended topology is increased with small peak voltage of the semiconductor, low elements count, low switch loss, and high power. The other benefit of the presented topology is the zero-voltage switching (ZVS) and zero-current switching (ZCS) of diodes. In order to demonstrate the accomplishment of the proposed structure, the technological expression, numerical analysis, and comparison survey with same family DC-DC converters are prepared. Eventually, experimental results with 200 W load power are presented to verify the mathematical survey.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"22 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":"130195636","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/pedstc53976.2022.9767518
Mojtaba Feyzi, Sam Roozbehani, Sahand Liasi
This paper presents a sliding mode control (SMC) method for a variable-speed wind turbine system based direct-drive Permanent Magnet Synchronous Generator (PMSG) during normal and grid fault conditions. In this control method at the normal conditions, Machine Side Converter (MSC) is used to satisfy maximum power point tracking (MPPT) of wind turbine and Grid Side Converter (GSC) controls the DC-link voltage and reactive power injected to the grid. In return, when grid faults happen to satisfy grid code requirements such as Low Voltage Ride Through (LVRT), MSC regulates the DC-link voltage instead of the GSC and GSC controls the active power as well as the reactive power. The results showed that the suggested method has better faster dynamic response under both balanced and unbalanced condition. Furthermore, while enhancing LVRT capability and injecting active power and reactive power, the proposed control system causes smaller spikes in the injected current and DC link voltage. To validate the results, simulations are performed in MATLAB/Simulink environment.
{"title":"Low Voltage Ride Through Improvement of Machine Side and Grid Side Converters of PMSG-Wind Turbine Based on SMC","authors":"Mojtaba Feyzi, Sam Roozbehani, Sahand Liasi","doi":"10.1109/pedstc53976.2022.9767518","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767518","url":null,"abstract":"This paper presents a sliding mode control (SMC) method for a variable-speed wind turbine system based direct-drive Permanent Magnet Synchronous Generator (PMSG) during normal and grid fault conditions. In this control method at the normal conditions, Machine Side Converter (MSC) is used to satisfy maximum power point tracking (MPPT) of wind turbine and Grid Side Converter (GSC) controls the DC-link voltage and reactive power injected to the grid. In return, when grid faults happen to satisfy grid code requirements such as Low Voltage Ride Through (LVRT), MSC regulates the DC-link voltage instead of the GSC and GSC controls the active power as well as the reactive power. The results showed that the suggested method has better faster dynamic response under both balanced and unbalanced condition. Furthermore, while enhancing LVRT capability and injecting active power and reactive power, the proposed control system causes smaller spikes in the injected current and DC link voltage. To validate the results, simulations are performed in MATLAB/Simulink environment.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"43 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":"124542429","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/pedstc53976.2022.9767392
Saeed Najafpour, Amir Hosein Dehghan, R. Ghandehari
So far, to improve the harmonic situation of voltage source converters and reduce the output voltage THD, several approaches have been proposed which are effective in different applications. One of them is the voltage reinjection strategy in 12-pulse converters. In this paper, the fundamental of voltage reinjection strategy is introduced and an attractive configuration is analyzed. Based on these studies, the main reason of the cost and magnitude of the voltage reinjection configurations is the large size of the interface transformer. So, in this paper, a novel and effective configuration is proposed to reduce the size and cost of interface transformers in 12- pulse converters. But, before that, several different configurations of interface transformers are analyzed which are used in the constructed cases. The comparison among the existing configurations and proposed interface transformer shows that this structure is smaller, cheaper and less complex than other configurations. The simulation results in MATLAB/SIMULINK approve the performance and accuracy of the proposed configuration.
{"title":"Voltage Reinjection: Optimizing the Cost and Size of the Interface Transformer in 12-pulse Converters","authors":"Saeed Najafpour, Amir Hosein Dehghan, R. Ghandehari","doi":"10.1109/pedstc53976.2022.9767392","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767392","url":null,"abstract":"So far, to improve the harmonic situation of voltage source converters and reduce the output voltage THD, several approaches have been proposed which are effective in different applications. One of them is the voltage reinjection strategy in 12-pulse converters. In this paper, the fundamental of voltage reinjection strategy is introduced and an attractive configuration is analyzed. Based on these studies, the main reason of the cost and magnitude of the voltage reinjection configurations is the large size of the interface transformer. So, in this paper, a novel and effective configuration is proposed to reduce the size and cost of interface transformers in 12- pulse converters. But, before that, several different configurations of interface transformers are analyzed which are used in the constructed cases. The comparison among the existing configurations and proposed interface transformer shows that this structure is smaller, cheaper and less complex than other configurations. The simulation results in MATLAB/SIMULINK approve the performance and accuracy of the proposed configuration.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"48 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":"127839993","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/pedstc53976.2022.9767328
N. Dehbashi, M. SeyyedHosseini, A. Yazdian-Varjani
Induction motors, especially three-phase induction motors, are widely used in the industry due to their outstanding features compared to others. Remote drive inverters are one of the new areas for increasing the efficiency and reliability of motors. With the fast advancement of technology and the expansion of the internet network, the Internet of Things has become one of the main ways to communicate with different devices. The number of devices connected to the Internet has increased, especially in industrial environments that lead to better product control and monitoring. Sending system monitoring information with IoT allows processing, storage and monitoring. The use of IoT in the control and monitoring of electric motors leads to the formation of smart drives. The benefits of using IoT include reducing maintenance costs, increasing reliability, optimizing motor performance, and improving failure prediction accuracy. In this project Raspberry Pi board is used as processor and two current and voltage sensors for monitoring electrical features and controlling motor speed Also temperature sensor for detecting failures. The data is collected by the Raspberry Pi and sent to the server and then stored in the database and after processing, the necessary instructions are sent back to the Raspberry Pi.
{"title":"IoT Based Condition Monitoring and Control of Induction Motor Using Raspberry Pi","authors":"N. Dehbashi, M. SeyyedHosseini, A. Yazdian-Varjani","doi":"10.1109/pedstc53976.2022.9767328","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767328","url":null,"abstract":"Induction motors, especially three-phase induction motors, are widely used in the industry due to their outstanding features compared to others. Remote drive inverters are one of the new areas for increasing the efficiency and reliability of motors. With the fast advancement of technology and the expansion of the internet network, the Internet of Things has become one of the main ways to communicate with different devices. The number of devices connected to the Internet has increased, especially in industrial environments that lead to better product control and monitoring. Sending system monitoring information with IoT allows processing, storage and monitoring. The use of IoT in the control and monitoring of electric motors leads to the formation of smart drives. The benefits of using IoT include reducing maintenance costs, increasing reliability, optimizing motor performance, and improving failure prediction accuracy. In this project Raspberry Pi board is used as processor and two current and voltage sensors for monitoring electrical features and controlling motor speed Also temperature sensor for detecting failures. The data is collected by the Raspberry Pi and sent to the server and then stored in the database and after processing, the necessary instructions are sent back to the Raspberry Pi.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"73 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":"115960586","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/pedstc53976.2022.9767439
M. Taghavi, Omolbanin Taqavi, Seyyed Mehdi Mirimani
High-speed electrical machines are an appropriate choice for a wide range of applications. Among different types of them, the permanent magnet type is very popular. This paper presents a comparison between radial and various discrete magnet Halbach array configurations in a ferrite-based high-speed permanent magnet synchronous machine (PMSM). The structures performances containing the air-gap field distribution, back-electromotive-force as well as cogging torque are presented. Finally, the most suitable configuration among the proposed Halbach topologies is selected and is compared to its coreless counterpart through finite element analysis (FEA) simulations. According to results, while the cored PMSM with Halbach magnet array provides lower cogging torque and better performance than the conventional radial PMSM, the coreless one has the lowest amount of loss.
{"title":"Electromagnetic Performance Comparison of Halbach Array configurations in Permanent Magnet Synchronous Machine","authors":"M. Taghavi, Omolbanin Taqavi, Seyyed Mehdi Mirimani","doi":"10.1109/pedstc53976.2022.9767439","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767439","url":null,"abstract":"High-speed electrical machines are an appropriate choice for a wide range of applications. Among different types of them, the permanent magnet type is very popular. This paper presents a comparison between radial and various discrete magnet Halbach array configurations in a ferrite-based high-speed permanent magnet synchronous machine (PMSM). The structures performances containing the air-gap field distribution, back-electromotive-force as well as cogging torque are presented. Finally, the most suitable configuration among the proposed Halbach topologies is selected and is compared to its coreless counterpart through finite element analysis (FEA) simulations. According to results, while the cored PMSM with Halbach magnet array provides lower cogging torque and better performance than the conventional radial PMSM, the coreless one has the lowest amount of loss.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"2016 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":"115550811","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/pedstc53976.2022.9767486
M. Mousavi, Behnam Nikmaram, Zahra Khalaji, S. Davari, C. Garcia, José Raúl Rodríguez Rodríguez
The deadbeat predictive control has a high dependency on the parameters of the plant’s model. This issue has been subsided in recent studies by utilizing the disturbance observers (DOs) to improve the robustness of the deadbeat control against the parameter variations. This paper presents a novel hyperbolic tangent observer (HTO) to improve the performance of the deadbeat control of the synchronous reluctance (SynRel) motor. The HTO has a characteristic similar to the linear observer (LO) for the small errors, and it acts the same as the sliding mode observer (SMO) when the error takes a high value. Therefore, the proposed HTO-based deadbeat control takes the good characteristics of both LO and SMO and, it roots out their drawbacks, such as the chattering problem of SMO and the poor performance of LO in nonlinear systems. In the simulation, the effect of uncertain parameters of the SynRel motor on the performance of the proposed HTO-based deadbeat control has been studied. The results showed that the proposed control system has good robustness against the parameter variations even in severe circumstances.
{"title":"Robust Deadbeat Predictive control for SynRel Motor Based on Hyperbolic Tangent Observer","authors":"M. Mousavi, Behnam Nikmaram, Zahra Khalaji, S. Davari, C. Garcia, José Raúl Rodríguez Rodríguez","doi":"10.1109/pedstc53976.2022.9767486","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767486","url":null,"abstract":"The deadbeat predictive control has a high dependency on the parameters of the plant’s model. This issue has been subsided in recent studies by utilizing the disturbance observers (DOs) to improve the robustness of the deadbeat control against the parameter variations. This paper presents a novel hyperbolic tangent observer (HTO) to improve the performance of the deadbeat control of the synchronous reluctance (SynRel) motor. The HTO has a characteristic similar to the linear observer (LO) for the small errors, and it acts the same as the sliding mode observer (SMO) when the error takes a high value. Therefore, the proposed HTO-based deadbeat control takes the good characteristics of both LO and SMO and, it roots out their drawbacks, such as the chattering problem of SMO and the poor performance of LO in nonlinear systems. In the simulation, the effect of uncertain parameters of the SynRel motor on the performance of the proposed HTO-based deadbeat control has been studied. The results showed that the proposed control system has good robustness against the parameter variations even in severe circumstances.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"18 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":"114790079","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/pedstc53976.2022.9767377
Ahmad Siroos, M. Sedighizadeh, E. Afjei, A. S. Fini
One of the applications of Wireless Power Transfer (WPT) is its use in Autonomous Underwater Vehicles (AUVs), which has become very popular in recent years. Underwater charging an AUV has several challenges. One of these challenges is the existence of water turbulence that causes the AUV to move and the magnetic coupling between the transmitter and receiver coils to change. Changes in the coupling coefficient also cause the output voltage to change. Using the right controller in AUVs is very important to keep the output voltage constant at a certain value. In this paper, by considering the characteristics of a magnetic coupler and using an LCC-LCC converter to compensate for the WPT system, three methods for controlling the output voltage are presented and their performance for the proposed WPT system is evaluated and compared. These three methods include using a buck-boost converter at the beginning of the circuit, using the PWM method to generate gate signals of the input inverter, and using the Z-Source converter. The results show that using a buck-boost converter at the beginning of the circuit performs better than the other two methods. To confirm the above, the simulation results of the proposed WPT system are presented along with three control methods.
{"title":"Comparison of different controllers for wireless charging system in AUVs","authors":"Ahmad Siroos, M. Sedighizadeh, E. Afjei, A. S. Fini","doi":"10.1109/pedstc53976.2022.9767377","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767377","url":null,"abstract":"One of the applications of Wireless Power Transfer (WPT) is its use in Autonomous Underwater Vehicles (AUVs), which has become very popular in recent years. Underwater charging an AUV has several challenges. One of these challenges is the existence of water turbulence that causes the AUV to move and the magnetic coupling between the transmitter and receiver coils to change. Changes in the coupling coefficient also cause the output voltage to change. Using the right controller in AUVs is very important to keep the output voltage constant at a certain value. In this paper, by considering the characteristics of a magnetic coupler and using an LCC-LCC converter to compensate for the WPT system, three methods for controlling the output voltage are presented and their performance for the proposed WPT system is evaluated and compared. These three methods include using a buck-boost converter at the beginning of the circuit, using the PWM method to generate gate signals of the input inverter, and using the Z-Source converter. The results show that using a buck-boost converter at the beginning of the circuit performs better than the other two methods. To confirm the above, the simulation results of the proposed WPT system are presented along with three control methods.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"43 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121005599","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/pedstc53976.2022.9767418
M. Pourmahdi, Hamed Heydari-doostabad, T. O’Donnell
This paper proposes a new high step-down-up power factor correction active rectifier. The main positive improvement of the proposed rectifier compared to previous converters, is the provision of the positive buck-boost voltage gain ratio with the lowest number of semiconductor device count and the continuous input and output currents. The converter also provides high step-down operation, and facilitates positive output voltages with a low number of semiconductor devices conducting simultaneously. Acceptable ac grid current quality, high power factor, and high efficiency are also achieved. Experimental results are presented for a 0.5 kW prototype, operating from Vrms = 220 V input to Vdc = 48.0 V output. The overall solution is substantiated through comprehensive analysis and experimental demonstrations the capability for high step-down and step-up ac to dc power conversion with a peak efficiency of 96.7%.
{"title":"Modified Cuk PFC Rectifier with High Step-down Step-up Output Voltage and Continuous Input and Output Currents","authors":"M. Pourmahdi, Hamed Heydari-doostabad, T. O’Donnell","doi":"10.1109/pedstc53976.2022.9767418","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767418","url":null,"abstract":"This paper proposes a new high step-down-up power factor correction active rectifier. The main positive improvement of the proposed rectifier compared to previous converters, is the provision of the positive buck-boost voltage gain ratio with the lowest number of semiconductor device count and the continuous input and output currents. The converter also provides high step-down operation, and facilitates positive output voltages with a low number of semiconductor devices conducting simultaneously. Acceptable ac grid current quality, high power factor, and high efficiency are also achieved. Experimental results are presented for a 0.5 kW prototype, operating from Vrms = 220 V input to Vdc = 48.0 V output. The overall solution is substantiated through comprehensive analysis and experimental demonstrations the capability for high step-down and step-up ac to dc power conversion with a peak efficiency of 96.7%.","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":"127105607","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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