Pub Date : 2021-02-02DOI: 10.1109/PEDSTC52094.2021.9405829
Vahid Moradzadeh Tehrani, A. Rajaei, M. Loghavi
In full illumination conditions, there is a distinct maximum power point (MPP) in the power-voltage curve of a photovoltaic system, which can be found using a conventional algorithm, such as the perturb and observe (P&O) method. However, the irradiation reduces due to the presence of shading conditions on the PV panels. Hence, multiple local MPPs (LMPP) may arise while there is only one global MPP (GMPP). An evolutionary algorithm is required for accurate tracking of the true GMPP. In this paper, an MPP Tracking (MPPT) controller design using Teaching Learning Based Optimization (TLBO) for photovoltaic systems under partial shading conditions is presented. Also, the MPPT controller design based on the Grey Wolf Optimization (GWO), Particle Swarm Optimization (PSO), and P&O algorithms are presented for the competence investigation of the TLBO algorithm. The proposed system is simulated considering the shading effect, then the feasibility of the presented controller is investigated.
{"title":"MPPT Controller Design Using TLBO Algorithm for Photovoltaic Systems Under Partial Shading Conditions","authors":"Vahid Moradzadeh Tehrani, A. Rajaei, M. Loghavi","doi":"10.1109/PEDSTC52094.2021.9405829","DOIUrl":"https://doi.org/10.1109/PEDSTC52094.2021.9405829","url":null,"abstract":"In full illumination conditions, there is a distinct maximum power point (MPP) in the power-voltage curve of a photovoltaic system, which can be found using a conventional algorithm, such as the perturb and observe (P&O) method. However, the irradiation reduces due to the presence of shading conditions on the PV panels. Hence, multiple local MPPs (LMPP) may arise while there is only one global MPP (GMPP). An evolutionary algorithm is required for accurate tracking of the true GMPP. In this paper, an MPP Tracking (MPPT) controller design using Teaching Learning Based Optimization (TLBO) for photovoltaic systems under partial shading conditions is presented. Also, the MPPT controller design based on the Grey Wolf Optimization (GWO), Particle Swarm Optimization (PSO), and P&O algorithms are presented for the competence investigation of the TLBO algorithm. The proposed system is simulated considering the shading effect, then the feasibility of the presented controller is investigated.","PeriodicalId":351532,"journal":{"name":"2021 12th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134410969","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 : 2021-02-02DOI: 10.1109/PEDSTC52094.2021.9405946
Mokhtar Ahmadi, M. Hosseinpour, S. Mousavi-Aghdam, F. Sedaghati
This paper proposes a modified Cuk converter to achieve the high voltage ratio for applications that needs of high voltage. The circuit configuration of proposed converter is simple and consist of just one switch, two diodes and include several energy storage components. Using a single switch reduces the implementation and switching costs and switching power diminutions. The presented converter has continuous input and output current. The input current has low ripple which low input current ripple helps maintenance of renewable energy sources because they degrade when considerable currents are drowned from them. The proposed converter provides continuous output current which decreases the current stress on the load terminal capacitor. It has two operation modes in continuous conduction mode (CCM). The output voltage ripple of the proposed converter is low, the voltage stress across switch and diodes are slight and lower than the converters output voltage. The mathematical analysis and MATLAB simulations of the proposed converter has been proved that topology of the proposed converter has proper performance and effectiveness.
{"title":"A High Conversion Ratio Transformerless Buck-Boost Converter with Continuous Input Current","authors":"Mokhtar Ahmadi, M. Hosseinpour, S. Mousavi-Aghdam, F. Sedaghati","doi":"10.1109/PEDSTC52094.2021.9405946","DOIUrl":"https://doi.org/10.1109/PEDSTC52094.2021.9405946","url":null,"abstract":"This paper proposes a modified Cuk converter to achieve the high voltage ratio for applications that needs of high voltage. The circuit configuration of proposed converter is simple and consist of just one switch, two diodes and include several energy storage components. Using a single switch reduces the implementation and switching costs and switching power diminutions. The presented converter has continuous input and output current. The input current has low ripple which low input current ripple helps maintenance of renewable energy sources because they degrade when considerable currents are drowned from them. The proposed converter provides continuous output current which decreases the current stress on the load terminal capacitor. It has two operation modes in continuous conduction mode (CCM). The output voltage ripple of the proposed converter is low, the voltage stress across switch and diodes are slight and lower than the converters output voltage. The mathematical analysis and MATLAB simulations of the proposed converter has been proved that topology of the proposed converter has proper performance and effectiveness.","PeriodicalId":351532,"journal":{"name":"2021 12th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134045525","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 : 2021-02-02DOI: 10.1109/PEDSTC52094.2021.9405951
A. A. Ghavifekr, A. Mohammadzadeh, J. F. Ardashir
Economic designing of microgrids is considered as a multivariable optimization problem. There are several practical remarks in protection, siting and energy management of microgrids. To provide the minimum investment with full operation of DG units, sizing optimization methods should be taken into account. In this paper, modified grasshopper optimization algorithm (MGOA) has been applied to find a solution for the economic dispatch(ED) problem and reconfigure the network structure of microgrids. Cost of energy (COE) and deficiency of power supply probability (DPSP) have been integrated to define an objective function for sizing problem. Simulation results demonstrate the capability of this algorithm to size the autonomous microgrid systems in compare with the similar metaheuristic approaches. It has fast convergence and sustainable balance between exploitation and exploration.
{"title":"Optimal Placement and Sizing of Energy-related Devices in Microgrids Using Grasshopper Optimization Algorithm","authors":"A. A. Ghavifekr, A. Mohammadzadeh, J. F. Ardashir","doi":"10.1109/PEDSTC52094.2021.9405951","DOIUrl":"https://doi.org/10.1109/PEDSTC52094.2021.9405951","url":null,"abstract":"Economic designing of microgrids is considered as a multivariable optimization problem. There are several practical remarks in protection, siting and energy management of microgrids. To provide the minimum investment with full operation of DG units, sizing optimization methods should be taken into account. In this paper, modified grasshopper optimization algorithm (MGOA) has been applied to find a solution for the economic dispatch(ED) problem and reconfigure the network structure of microgrids. Cost of energy (COE) and deficiency of power supply probability (DPSP) have been integrated to define an objective function for sizing problem. Simulation results demonstrate the capability of this algorithm to size the autonomous microgrid systems in compare with the similar metaheuristic approaches. It has fast convergence and sustainable balance between exploitation and exploration.","PeriodicalId":351532,"journal":{"name":"2021 12th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133562809","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 : 2021-02-02DOI: 10.1109/PEDSTC52094.2021.9405832
Farzad Yaghoobi Notash, Behrouz Mamipour Matanag, S. Tohidi
This paper proposes utilizing a 9-switch 3-level voltage source inverter (VSI) in model predictive speed control (MPSC) of a permanent magnet synchronous motor (PMSM) without weighting factors. MPSC, through which PMSM speed is controlled directly, is an impressive method which enjoys a faster dynamic response compared to the other predictive approaches, such as model predictive current control (MPCC). However, switching frequency is lower in MPSC which, subsequently, leads to high steady-state torque and speed ripples. In this regard, utilizing the proposed VSI, which has fewer switches in its structure compared to other 3-level VSIs, provides more active voltage vectors compared to the conventional 2-level VSI, and will decreases the speed, torque and d-axis stator current ripples of PMSM. Besides, cost function of MPSC consists of different components with dissimilar natures and dimensions; thus, proper tuning of the weighting factors of its cost function can be problematic. With this in mind, in this paper, weighting factors are eliminated through rating the different components of the cost function relatively. Simulation results applied in MATLAB/Simulink environment validates the effectiveness of the proposed method.
{"title":"A 9-Switch 3-Level VSI-Based MPSC of PMSM Without Weighting Factors","authors":"Farzad Yaghoobi Notash, Behrouz Mamipour Matanag, S. Tohidi","doi":"10.1109/PEDSTC52094.2021.9405832","DOIUrl":"https://doi.org/10.1109/PEDSTC52094.2021.9405832","url":null,"abstract":"This paper proposes utilizing a 9-switch 3-level voltage source inverter (VSI) in model predictive speed control (MPSC) of a permanent magnet synchronous motor (PMSM) without weighting factors. MPSC, through which PMSM speed is controlled directly, is an impressive method which enjoys a faster dynamic response compared to the other predictive approaches, such as model predictive current control (MPCC). However, switching frequency is lower in MPSC which, subsequently, leads to high steady-state torque and speed ripples. In this regard, utilizing the proposed VSI, which has fewer switches in its structure compared to other 3-level VSIs, provides more active voltage vectors compared to the conventional 2-level VSI, and will decreases the speed, torque and d-axis stator current ripples of PMSM. Besides, cost function of MPSC consists of different components with dissimilar natures and dimensions; thus, proper tuning of the weighting factors of its cost function can be problematic. With this in mind, in this paper, weighting factors are eliminated through rating the different components of the cost function relatively. Simulation results applied in MATLAB/Simulink environment validates the effectiveness of the proposed method.","PeriodicalId":351532,"journal":{"name":"2021 12th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134646544","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 : 2021-02-02DOI: 10.1109/PEDSTC52094.2021.9405887
J. F. Ardashir, Behrouz Rozmeh, Mahdi Gasemi, A. M. Shotorbani, A. A. Ghavifekr
In this article, a novel Boost Fifteen-level Flying-Capacitor (BFFC) inverter is suggested. The proposed inverter employs eleven switches, four diodes, two capacitors, and three voltage sources to generate a boosted output voltage. The boosting characteristic of the proposed inverter is obtained by using the capacitors serried to the input voltage sources. The phase disposition SPWM method is utilized in order to balance the voltage of capacitors. The main merits of the suggested inverter are reactive power transfer, voltage step-up, and natural balancing of capacitor voltage. A brief comparison with some recent fifteen-level flying capacitor inverters is constructed to show the merits of the suggested topology. The suggested topology needs fewer components compared to some topologies, which leads to a reduction in gate driver, price, and volume. The circuit topology, the operating state, and the capacitor design have been concluded in this article. Moreover, the performance of the proposed inverter is obtained under different modulation indexes to obtain multiple different levels of output voltage for more applications. Finally, to verify various features and performance of novel topology, the suggested topology has been tested in MATLAB/SIMULINK software.
{"title":"A Novel Boost Fifteen-Level Asymmetrical Flying-Capacitor Inverter with Natural Balancing of Capacitor Voltages","authors":"J. F. Ardashir, Behrouz Rozmeh, Mahdi Gasemi, A. M. Shotorbani, A. A. Ghavifekr","doi":"10.1109/PEDSTC52094.2021.9405887","DOIUrl":"https://doi.org/10.1109/PEDSTC52094.2021.9405887","url":null,"abstract":"In this article, a novel Boost Fifteen-level Flying-Capacitor (BFFC) inverter is suggested. The proposed inverter employs eleven switches, four diodes, two capacitors, and three voltage sources to generate a boosted output voltage. The boosting characteristic of the proposed inverter is obtained by using the capacitors serried to the input voltage sources. The phase disposition SPWM method is utilized in order to balance the voltage of capacitors. The main merits of the suggested inverter are reactive power transfer, voltage step-up, and natural balancing of capacitor voltage. A brief comparison with some recent fifteen-level flying capacitor inverters is constructed to show the merits of the suggested topology. The suggested topology needs fewer components compared to some topologies, which leads to a reduction in gate driver, price, and volume. The circuit topology, the operating state, and the capacitor design have been concluded in this article. Moreover, the performance of the proposed inverter is obtained under different modulation indexes to obtain multiple different levels of output voltage for more applications. Finally, to verify various features and performance of novel topology, the suggested topology has been tested in MATLAB/SIMULINK software.","PeriodicalId":351532,"journal":{"name":"2021 12th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129763444","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 : 2021-02-02DOI: 10.1109/PEDSTC52094.2021.9405948
A. Malek, A. Y. Varjani
A non-isolated bidirectional dc-dc converter (BDC) consisting of a modified interleaved buck-boost circuit and a neutral-point-clamped (NPC) structure as a voltage multiplier cell is suggested in this paper. Employing a voltage booster cell and series connection on the high voltage side (HVS) allows us to attain a higher voltage conversion ratio (VCR) than similar ones. The voltage stress on the switches is decreased, making it feasible to use power switches with smaller on-resistance and voltage ratings. The presence of two phases on the low voltage side (LVS) reduces the input current ripple to the energy storage element and increases its lifespan. The zero-voltage switching (ZVS) characteristic alleviates the switching losses and enables us to raise the switching frequency to improve the power density. PWM plus phase-shift (PPS) is the modulation method used in the proposed topology that provides voltage-matching control (VMC), which minimizes the circulating current and helps the converter operate in the most optimal condition. After introducing the suggested topology and its operational principles, some of its analytical relationships are examined. Finally, the simulation results corresponding to 40-50 V to 400 V at rated power are shown.
{"title":"A Non-Isolated Bidirectional DC-DC Converter with Wide Voltage Conversion Ratio and Soft-Switching Capability","authors":"A. Malek, A. Y. Varjani","doi":"10.1109/PEDSTC52094.2021.9405948","DOIUrl":"https://doi.org/10.1109/PEDSTC52094.2021.9405948","url":null,"abstract":"A non-isolated bidirectional dc-dc converter (BDC) consisting of a modified interleaved buck-boost circuit and a neutral-point-clamped (NPC) structure as a voltage multiplier cell is suggested in this paper. Employing a voltage booster cell and series connection on the high voltage side (HVS) allows us to attain a higher voltage conversion ratio (VCR) than similar ones. The voltage stress on the switches is decreased, making it feasible to use power switches with smaller on-resistance and voltage ratings. The presence of two phases on the low voltage side (LVS) reduces the input current ripple to the energy storage element and increases its lifespan. The zero-voltage switching (ZVS) characteristic alleviates the switching losses and enables us to raise the switching frequency to improve the power density. PWM plus phase-shift (PPS) is the modulation method used in the proposed topology that provides voltage-matching control (VMC), which minimizes the circulating current and helps the converter operate in the most optimal condition. After introducing the suggested topology and its operational principles, some of its analytical relationships are examined. Finally, the simulation results corresponding to 40-50 V to 400 V at rated power are shown.","PeriodicalId":351532,"journal":{"name":"2021 12th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130088689","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 : 2021-02-02DOI: 10.1109/PEDSTC52094.2021.9405897
Nazanin Abbasi, D. A. Khabouri, José R. Rodríguez
Present day standards and applications require power electronic ac- dc converters that can operate over a wide range of load variations with approximately unity power factor, controlled dc bus voltage, low input current distortion, and a simple controller. Power factor correction (PFC) techniques can be a practical solution to unidirectional rectifiers since they reduce the number of devices, and improve the efficiency and power system quality as well. This paper presents a new topology of a modular three-phase AC-DC converter. The presented PFC converter can produce a controlled dc output voltage, near-unity power factor, and high efficiency. By operating in the continuous conduction mode (CCM) with an active approach which is one class of high-quality three-phase rectification, the required features are achieved. The performance of the topological structure of the presented converter is discussed and investigated under various modes of operation to identifies their merits and limitations. Extensive simulation is carried out using PSIM software to validate the explained function.
{"title":"Three-Phase Modular PFC Converter in Continuous Conduction Mode","authors":"Nazanin Abbasi, D. A. Khabouri, José R. Rodríguez","doi":"10.1109/PEDSTC52094.2021.9405897","DOIUrl":"https://doi.org/10.1109/PEDSTC52094.2021.9405897","url":null,"abstract":"Present day standards and applications require power electronic ac- dc converters that can operate over a wide range of load variations with approximately unity power factor, controlled dc bus voltage, low input current distortion, and a simple controller. Power factor correction (PFC) techniques can be a practical solution to unidirectional rectifiers since they reduce the number of devices, and improve the efficiency and power system quality as well. This paper presents a new topology of a modular three-phase AC-DC converter. The presented PFC converter can produce a controlled dc output voltage, near-unity power factor, and high efficiency. By operating in the continuous conduction mode (CCM) with an active approach which is one class of high-quality three-phase rectification, the required features are achieved. The performance of the topological structure of the presented converter is discussed and investigated under various modes of operation to identifies their merits and limitations. Extensive simulation is carried out using PSIM software to validate the explained function.","PeriodicalId":351532,"journal":{"name":"2021 12th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130748254","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 : 2021-02-02DOI: 10.1109/PEDSTC52094.2021.9405907
M. Rajabinezhad, Arman Ghaderi Baayeh, S. Danyali, J. Guerrero
With the advent of microgrids (MG) and increasing use of renewable energy sources (RES), conventional low voltage networks change their structure from passive to active. The inherent oscillation nature of RESs, such as wind turbine units (WT), can lead to adverse effects such as power quality and system stability issues. therefore, the use of energy storage systems (ESSs) becomes one feasible solution to mitigate the output power fluctuations of the WT unit. In this paper, a Battery Energy Storage System (BESS) is used in order to smooth the power fluctuations based on a two-level control strategy include active power smoothing and reactive power compensation and also power management system. Various signal processing methods are applied to power smoothing level, and among all of them, the continuous wavelet transform (CWT) demonstrated the best performance. The effectiveness of the control strategy is verified using MATLAB/Simulink software.
{"title":"Application of online empirical mode decomposition and continuous wavelet transform for Power Smoothing in Low-voltage Microgrid with Battery Energy Storage System","authors":"M. Rajabinezhad, Arman Ghaderi Baayeh, S. Danyali, J. Guerrero","doi":"10.1109/PEDSTC52094.2021.9405907","DOIUrl":"https://doi.org/10.1109/PEDSTC52094.2021.9405907","url":null,"abstract":"With the advent of microgrids (MG) and increasing use of renewable energy sources (RES), conventional low voltage networks change their structure from passive to active. The inherent oscillation nature of RESs, such as wind turbine units (WT), can lead to adverse effects such as power quality and system stability issues. therefore, the use of energy storage systems (ESSs) becomes one feasible solution to mitigate the output power fluctuations of the WT unit. In this paper, a Battery Energy Storage System (BESS) is used in order to smooth the power fluctuations based on a two-level control strategy include active power smoothing and reactive power compensation and also power management system. Various signal processing methods are applied to power smoothing level, and among all of them, the continuous wavelet transform (CWT) demonstrated the best performance. The effectiveness of the control strategy is verified using MATLAB/Simulink software.","PeriodicalId":351532,"journal":{"name":"2021 12th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"480 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132097292","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 : 2021-02-02DOI: 10.1109/PEDSTC52094.2021.9405841
Sepehr Karimi, F. Naseri, E. Farjah, T. Ghanbari, J. Schanen
Inter-winding parasitic capacitances of the transformer in LLC resonant DC-DC converters have a considerable impact on conductive electromagnetic interference, especially on the common-mode (CM) noise. The variations of environmental and operating conditions such as temperature, vibrations, and humidity can change the dielectric constant, which increases the value of parasitic capacitances. The real-time estimation of the parasitic capacitance is a nice solution to study CM parasitic capacitance and EMI emission in real operating conditions. In this paper, the parasitic capacitance relevant to the CM noise is estimated in real-time using unscented Kalman filter. Different simulation results are provided and discussed to demonstrate the correct performance of the proposed method in different operating conditions.
{"title":"Estimation of CM Parasitic Capacitances in Front-end LLC Resonant DC-DC Converters","authors":"Sepehr Karimi, F. Naseri, E. Farjah, T. Ghanbari, J. Schanen","doi":"10.1109/PEDSTC52094.2021.9405841","DOIUrl":"https://doi.org/10.1109/PEDSTC52094.2021.9405841","url":null,"abstract":"Inter-winding parasitic capacitances of the transformer in LLC resonant DC-DC converters have a considerable impact on conductive electromagnetic interference, especially on the common-mode (CM) noise. The variations of environmental and operating conditions such as temperature, vibrations, and humidity can change the dielectric constant, which increases the value of parasitic capacitances. The real-time estimation of the parasitic capacitance is a nice solution to study CM parasitic capacitance and EMI emission in real operating conditions. In this paper, the parasitic capacitance relevant to the CM noise is estimated in real-time using unscented Kalman filter. Different simulation results are provided and discussed to demonstrate the correct performance of the proposed method in different operating conditions.","PeriodicalId":351532,"journal":{"name":"2021 12th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133573939","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 : 2021-02-02DOI: 10.1109/PEDSTC52094.2021.9405878
Salim salehi, K. Abbaszadeh, Sajad Ghabeli Sani, Hadi Haji Mohamadi
Nowadays Induction heating (IH) technology is the heating technology of choice in modern domestic applications due to its high efficiency, fast heating, safety, and cleanness. With the development and improvement of power electronic devices, the technology of making this heating technology is more efficient and cost-effective. This paper presents a half-bridge series resonant inverter for induction heating (IH) application that works in two operating modes to improve the efficiency of this application in a wide power range. In this structure, to control the power output, changing the switching frequency is used for high power range, and pulse width modulation (PWM) is used for low power range, so that reduces the losses and increases the efficiency of the converter in all range power. The operating modes of the converter can be changed by changing the snubber and resonant capacitors through electromechanical switches. In order to show the feasibility, the simulated and experimental results for an IH rated on 1kw are presented.
{"title":"A new Domestic Induction Heating Resonant Converter with High Power Conversion Efficiency","authors":"Salim salehi, K. Abbaszadeh, Sajad Ghabeli Sani, Hadi Haji Mohamadi","doi":"10.1109/PEDSTC52094.2021.9405878","DOIUrl":"https://doi.org/10.1109/PEDSTC52094.2021.9405878","url":null,"abstract":"Nowadays Induction heating (IH) technology is the heating technology of choice in modern domestic applications due to its high efficiency, fast heating, safety, and cleanness. With the development and improvement of power electronic devices, the technology of making this heating technology is more efficient and cost-effective. This paper presents a half-bridge series resonant inverter for induction heating (IH) application that works in two operating modes to improve the efficiency of this application in a wide power range. In this structure, to control the power output, changing the switching frequency is used for high power range, and pulse width modulation (PWM) is used for low power range, so that reduces the losses and increases the efficiency of the converter in all range power. The operating modes of the converter can be changed by changing the snubber and resonant capacitors through electromechanical switches. In order to show the feasibility, the simulated and experimental results for an IH rated on 1kw are presented.","PeriodicalId":351532,"journal":{"name":"2021 12th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124879207","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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