Pub Date : 2019-04-23DOI: 10.1109/PEDSTC.2019.8697665
Mehdi Abbasipour, J. Milimonfared, S. S. Heidary Yazdi, K. Rouzbehi
Power transmission technology of the offshore wind farm (OWF)s is usually based on HVDC interconnection. Power flow controller (PFC)s are flexible power transmission devices which play important role in the DC power flow (PF) control especially in contingency conditions. So, these devices should be modeled to solve related MT-HVDC grid DC PF equations. In this context, an interline DC PFC (IDC-PFC) is considered as a sample PFC for modeling due to its advantages in comparison to other series and cascaded PFCs. The novelty of this work is solving the DC PF problem of the IDC-PFC compensated MT-HVDC grids by modeling of the IDC-PFC and employing the Newton-Raphson (N-R) method. An eight-bus MT-HVDC test grid is considered to authenticate the presented IDC-PFC modeling and verify the accuracy of the DC PF results obtained by employing the N-R method. The obtained static results verify the accuracy of the presented IDC-PFC modeling and the performance of the N-R method in solving flexible MT-HVDC grid PF equations. Hence, it is suitable to integrate them in the future power system analysis softwares.
{"title":"Static Modeling of the IDC-PFC to Solve DC Power Flow Equations of MT-HVDC Grids Employing the Newton-Raphson Method","authors":"Mehdi Abbasipour, J. Milimonfared, S. S. Heidary Yazdi, K. Rouzbehi","doi":"10.1109/PEDSTC.2019.8697665","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697665","url":null,"abstract":"Power transmission technology of the offshore wind farm (OWF)s is usually based on HVDC interconnection. Power flow controller (PFC)s are flexible power transmission devices which play important role in the DC power flow (PF) control especially in contingency conditions. So, these devices should be modeled to solve related MT-HVDC grid DC PF equations. In this context, an interline DC PFC (IDC-PFC) is considered as a sample PFC for modeling due to its advantages in comparison to other series and cascaded PFCs. The novelty of this work is solving the DC PF problem of the IDC-PFC compensated MT-HVDC grids by modeling of the IDC-PFC and employing the Newton-Raphson (N-R) method. An eight-bus MT-HVDC test grid is considered to authenticate the presented IDC-PFC modeling and verify the accuracy of the DC PF results obtained by employing the N-R method. The obtained static results verify the accuracy of the presented IDC-PFC modeling and the performance of the N-R method in solving flexible MT-HVDC grid PF equations. Hence, it is suitable to integrate them in the future power system analysis softwares.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129694391","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 : 2019-04-23DOI: 10.1109/PEDSTC.2019.8697250
S. Azadi, S. Davari, Arya Aghili Ashtiani, C. Garcia, J. Rodrigues
In this research, a new technique is applied to the predictive direct torque control of the induction motor in order to reduce the variation of the switching frequency. The method is a modification of the finite set model predictive control (FS-MPC). In this method, the switching options are examined in a cost function and the best option is selected based on the minimum cost function. Since the switching technique in FS-MPC is direct switching without using a modulator, the switching frequency will be variable. In the proposed method, the periodic selection of the active and zero voltage vector is used to reduce the variation of the switching period. Thus, the zero voltage is mandatorily exerted after an active voltage and vice versa. With this method, the cost function is only examined for the active voltage vectors and the zero voltage is selected for the next control interval. This manner is repeated in the whole algorithm. The proposed method is evaluated by simulation via MATLAB/Simulink. The results showed that the proposed method reduced the variation of the switching frequency and it was stable for the different operating point.
{"title":"Reducing Variation of Switching Frequency in Finite-State Predictive Torque of three-Phase Induction Motor","authors":"S. Azadi, S. Davari, Arya Aghili Ashtiani, C. Garcia, J. Rodrigues","doi":"10.1109/PEDSTC.2019.8697250","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697250","url":null,"abstract":"In this research, a new technique is applied to the predictive direct torque control of the induction motor in order to reduce the variation of the switching frequency. The method is a modification of the finite set model predictive control (FS-MPC). In this method, the switching options are examined in a cost function and the best option is selected based on the minimum cost function. Since the switching technique in FS-MPC is direct switching without using a modulator, the switching frequency will be variable. In the proposed method, the periodic selection of the active and zero voltage vector is used to reduce the variation of the switching period. Thus, the zero voltage is mandatorily exerted after an active voltage and vice versa. With this method, the cost function is only examined for the active voltage vectors and the zero voltage is selected for the next control interval. This manner is repeated in the whole algorithm. The proposed method is evaluated by simulation via MATLAB/Simulink. The results showed that the proposed method reduced the variation of the switching frequency and it was stable for the different operating point.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127393360","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 : 2019-04-23DOI: 10.1109/PEDSTC.2019.8697231
M. Yousefi, N. Kianpoor, A. Hajizadeh, M. Soltani
Using electric vehicles (EVs) in residential homes integrated with solar photovoltaic (PV) array can address many problems associated with environmental issues and energy demand. EVs are useful as long as they utilized with the smart energy system (SES) to optimally and smartly charge the EV batteries. In order to improve the SES performance for optimally and effectively charging the vehicle, the impact of uncertainties and random parameters have to be considered in the EV models. Furthermore, online control methods like model predictive control (MPC) should be used to eliminate the effect of the error uncertainties and random parameters model on the system performance during the actual operation. In this paper, the EV departure time and required energy consumption during driving are modeled by Markov chain and conditional probability. Also, the PV performance and home load demand are modeled by PVWatt model and adaptive neuro-fuzzy inference system (ANFIS) respectively. Afterward, an MPC is designed to optimally charge the EV, while maintaining the desired battery energy level. The simulation is performed and the results demonstrate the effectiveness and enhancement of the proposed method.
{"title":"Stochastic Smart Charging of Electric Vehicles for Residential Homes with PV Integration","authors":"M. Yousefi, N. Kianpoor, A. Hajizadeh, M. Soltani","doi":"10.1109/PEDSTC.2019.8697231","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697231","url":null,"abstract":"Using electric vehicles (EVs) in residential homes integrated with solar photovoltaic (PV) array can address many problems associated with environmental issues and energy demand. EVs are useful as long as they utilized with the smart energy system (SES) to optimally and smartly charge the EV batteries. In order to improve the SES performance for optimally and effectively charging the vehicle, the impact of uncertainties and random parameters have to be considered in the EV models. Furthermore, online control methods like model predictive control (MPC) should be used to eliminate the effect of the error uncertainties and random parameters model on the system performance during the actual operation. In this paper, the EV departure time and required energy consumption during driving are modeled by Markov chain and conditional probability. Also, the PV performance and home load demand are modeled by PVWatt model and adaptive neuro-fuzzy inference system (ANFIS) respectively. Afterward, an MPC is designed to optimally charge the EV, while maintaining the desired battery energy level. The simulation is performed and the results demonstrate the effectiveness and enhancement of the proposed method.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"30 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124896141","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 : 2019-02-12DOI: 10.1109/PEDSTC.2019.8697756
E. Daryabeigi, A. Mirzaei, H. A. Zarchi, S. Vaez‐Zadeh
Essentially in electric drives, control issues deal with the deviation of variables introducing dynamical behaviors. Hence, a deviation model could be effective as an approach to the issues. In addition, dynamical analyses have some complexities by using nonlinear and multi-variables modeling. In this paper, a deviation modelling approach is discussed to analyze and control a synchronous reluctance motor (SynRM) drive. Normalization as a tool supports the deviation modeling to simplify the model. A deviation model-based control (DevC) provides some facilities in terms of parameter independency, simplicity, flux and torque decoupling, and fast dynamics. DevC is compared with Field-oriented control (FOC) and Direct Torque Control (DTC) methods in aspects of torque ripples, switching features, and dynamic responses. Both experimental and simulation results support the theoretical findings. The proposed approach not only could be extended for other electric drives but also it could be adopted for other dynamic systems.
{"title":"Deviation Control in Comparison with DTC and FOC for SynRM Drives","authors":"E. Daryabeigi, A. Mirzaei, H. A. Zarchi, S. Vaez‐Zadeh","doi":"10.1109/PEDSTC.2019.8697756","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697756","url":null,"abstract":"Essentially in electric drives, control issues deal with the deviation of variables introducing dynamical behaviors. Hence, a deviation model could be effective as an approach to the issues. In addition, dynamical analyses have some complexities by using nonlinear and multi-variables modeling. In this paper, a deviation modelling approach is discussed to analyze and control a synchronous reluctance motor (SynRM) drive. Normalization as a tool supports the deviation modeling to simplify the model. A deviation model-based control (DevC) provides some facilities in terms of parameter independency, simplicity, flux and torque decoupling, and fast dynamics. DevC is compared with Field-oriented control (FOC) and Direct Torque Control (DTC) methods in aspects of torque ripples, switching features, and dynamic responses. Both experimental and simulation results support the theoretical findings. The proposed approach not only could be extended for other electric drives but also it could be adopted for other dynamic systems.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"192 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127594754","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 : 2019-02-12DOI: 10.1109/PEDSTC.2019.8697693
M. Eydi, S. Hosseini, R. Ghazi
The fundamental DC-DC boost converter has the drawbacks of low voltage gain ratio followed by discontinuous output current. May the reverse recovery problem rises as a disaster for the output diode along with harming the power switch. Also the stress of voltage is significantly high in respect with the output voltage. Therefore, a new topology of high gain non-isolated DC-DC boost converter is proposed in this paper. In this converter a high voltage gain is achieved with continuous power in the input and the output. The voltage stresses across the semiconductors are all less than that of fundamental boost converter in respect with the output voltage. Only a single power switch is controlled by PWM which leads to simplicity and cost reduction. The proposed converter is advisable for PV panels because of its continuous input current. Furthermore, as the output current is also continuous this makes it a suitable choice for fuel cells. Simulations are provided in MATLAB Simulink to verify the extracted theoretical equations from the proposed converter.
{"title":"A New High Gain DC-DC Boost Converter with Continuous Input and Output Currents","authors":"M. Eydi, S. Hosseini, R. Ghazi","doi":"10.1109/PEDSTC.2019.8697693","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697693","url":null,"abstract":"The fundamental DC-DC boost converter has the drawbacks of low voltage gain ratio followed by discontinuous output current. May the reverse recovery problem rises as a disaster for the output diode along with harming the power switch. Also the stress of voltage is significantly high in respect with the output voltage. Therefore, a new topology of high gain non-isolated DC-DC boost converter is proposed in this paper. In this converter a high voltage gain is achieved with continuous power in the input and the output. The voltage stresses across the semiconductors are all less than that of fundamental boost converter in respect with the output voltage. Only a single power switch is controlled by PWM which leads to simplicity and cost reduction. The proposed converter is advisable for PV panels because of its continuous input current. Furthermore, as the output current is also continuous this makes it a suitable choice for fuel cells. Simulations are provided in MATLAB Simulink to verify the extracted theoretical equations from the proposed converter.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134174249","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 : 2019-02-12DOI: 10.1109/PEDSTC.2019.8697632
Yaser Chulaee, H. A. Zarchi, Seyyed Iman Hosseini Sabzevari
This paper presents a technique in order to estimate the rotor speed and position of the BLDC machine. In the proposed method, particle filter (PF) is employed to estimate state variables of the machine using measured currents and line voltages. PF is a type of stochastic filters that has wide applications in state estimation of non-linear systems. The main aim of this paper is to utilize particle filter in the sensorless control of BLDC machine and investigate proposed PF algorithm performance. In addition, effective parameters in estimation accuracy and transient response of the filter are discussed. The simulation is performed in MATLAB/SIMULINK environment and results denote that proposed sensorless drive have good accuracy in wide speed range and load torque variation. Also, the algorithm performance is not influenced by the incorrect initial position.
{"title":"State Estimation for Sensorless Control of BLDC Machine with Particle Filter Algorithm","authors":"Yaser Chulaee, H. A. Zarchi, Seyyed Iman Hosseini Sabzevari","doi":"10.1109/PEDSTC.2019.8697632","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697632","url":null,"abstract":"This paper presents a technique in order to estimate the rotor speed and position of the BLDC machine. In the proposed method, particle filter (PF) is employed to estimate state variables of the machine using measured currents and line voltages. PF is a type of stochastic filters that has wide applications in state estimation of non-linear systems. The main aim of this paper is to utilize particle filter in the sensorless control of BLDC machine and investigate proposed PF algorithm performance. In addition, effective parameters in estimation accuracy and transient response of the filter are discussed. The simulation is performed in MATLAB/SIMULINK environment and results denote that proposed sensorless drive have good accuracy in wide speed range and load torque variation. Also, the algorithm performance is not influenced by the incorrect initial position.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124107318","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 : 2019-02-12DOI: 10.1109/PEDSTC.2019.8697826
M. Eydi, M. A. Khoshhava, H. Abootorabi Zarchi
Since the applications of Permanent Magnet Synchronous Machines (PMSMs) are developing in various industries, stator loss minimization in these machines is significantly important. In this regard, the d and q axis currents should be controlled where the load torque is provided with minimum stator current. This paper proposes a novel Maximum Torque per Ampere (MTPA) strategy for PMSMs based on a PI-Sliding Mode Controller (SMC) considering machine parameter variations. In the proposed drive system, the speed is controlled by the q axis current. Moreover, the d axis current is controlled via a two layer controller. In the first layer of the proposed controller, the minimum stator current is determined based on the machine nominal parameters through a PI-SMC. With due attention to the machine parameters are varied, the minimum stator current is not precise. Hence, the second layer controller is applied in order to shift the operation point to the correct minimum current point. Consequently, the load torque is precisely provided with minimum stator current followed by the absence of any steady-state torque and speed ripples. The proposed control scheme is simulated in MATLAB/Simulink environment. Simulation results validate the performance of the proposed control system.
{"title":"Robust Maximum Torque per Ampere Strategy for Permanent Magnet Synchronous Motor Based on PI-Sliding Mode Controller","authors":"M. Eydi, M. A. Khoshhava, H. Abootorabi Zarchi","doi":"10.1109/PEDSTC.2019.8697826","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697826","url":null,"abstract":"Since the applications of Permanent Magnet Synchronous Machines (PMSMs) are developing in various industries, stator loss minimization in these machines is significantly important. In this regard, the d and q axis currents should be controlled where the load torque is provided with minimum stator current. This paper proposes a novel Maximum Torque per Ampere (MTPA) strategy for PMSMs based on a PI-Sliding Mode Controller (SMC) considering machine parameter variations. In the proposed drive system, the speed is controlled by the q axis current. Moreover, the d axis current is controlled via a two layer controller. In the first layer of the proposed controller, the minimum stator current is determined based on the machine nominal parameters through a PI-SMC. With due attention to the machine parameters are varied, the minimum stator current is not precise. Hence, the second layer controller is applied in order to shift the operation point to the correct minimum current point. Consequently, the load torque is precisely provided with minimum stator current followed by the absence of any steady-state torque and speed ripples. The proposed control scheme is simulated in MATLAB/Simulink environment. Simulation results validate the performance of the proposed control system.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129108970","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 : 2019-02-12DOI: 10.1109/PEDSTC.2019.8697845
H. Mosaddegh, H. A. Zarchi, G. Arab Markadeh
This paper introduces the maximum torque per total ampere (MTPTA) strategy for brushless doubly-fed induction motor (BDFIM) drives, for the first time. In the proposed strategy, the reference of control winding (CW) d-axis current is determined through the well-known search-based approach. Accordingly, by tracking this reference, the magnitude of total stator current is minimized for a given load. In addition, using the reduced order model of BDFIM in the power winding (PW) flux reference frame, the torque expression is derived and it is shown that if the CW d-axis current is forced to zero, the maximum torque per inverter ampere (MTPIA) strategy is achieved to allow the minimum inverter loading. Simulation results are finally proposed to verify the effectiveness of the proposed control strategy.
{"title":"Stator Flux Oriented Control of Brushless Doubly Fed Induction Motor Drives Based on Maximum Torque per Total Ampere Strategy","authors":"H. Mosaddegh, H. A. Zarchi, G. Arab Markadeh","doi":"10.1109/PEDSTC.2019.8697845","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697845","url":null,"abstract":"This paper introduces the maximum torque per total ampere (MTPTA) strategy for brushless doubly-fed induction motor (BDFIM) drives, for the first time. In the proposed strategy, the reference of control winding (CW) d-axis current is determined through the well-known search-based approach. Accordingly, by tracking this reference, the magnitude of total stator current is minimized for a given load. In addition, using the reduced order model of BDFIM in the power winding (PW) flux reference frame, the torque expression is derived and it is shown that if the CW d-axis current is forced to zero, the maximum torque per inverter ampere (MTPIA) strategy is achieved to allow the minimum inverter loading. Simulation results are finally proposed to verify the effectiveness of the proposed control strategy.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127951763","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 : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697865
J. Gorji, K. Abbaszadeh, Farhad Bagheroskouei
a new two-input and multi-output interleaved DC_DC boost converter is proposed. This converter is a high gain and non-isolated boost converter, which can be used in satellites power system. This converter has several dc links with different gains in the output to feed other satellite subsystems. This converter is an interleaved boost converter, so it performs better than the conventional converters. The main tasks of this converter in the subsystem of satellite energy supply are maximum power points tracking (MPPT), battery charging and line dc voltage regulation. Normally, three separate converters are required to provide these tasks. By increasing the power electronic devices, the volume and weight of the satellite will go up. This is not desirable, therefore, must use a comprehensive circuit to perform the three above tasks at the same time. The proposed converter has an integrated structure with only four switches that controlled by different duty cycles. Also this converter has a uni-directional input for connecting the solar array and a bi-directional input for connecting the battery. Based on charging or discharging state of the battery, three operation modes are defined for this converter. One of the prominent features of the proposed converter is the battery bases grounded, so the noise cannot damage the battery and so on increase the useful life of battery. Theoretical analysis of the proposed converter is verified by simulation results for different operation conditions.
{"title":"A New Two-input And Multi-output Interleaved DC_DC Boost Converter For Satellites Power system","authors":"J. Gorji, K. Abbaszadeh, Farhad Bagheroskouei","doi":"10.1109/PEDSTC.2019.8697865","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697865","url":null,"abstract":"a new two-input and multi-output interleaved DC_DC boost converter is proposed. This converter is a high gain and non-isolated boost converter, which can be used in satellites power system. This converter has several dc links with different gains in the output to feed other satellite subsystems. This converter is an interleaved boost converter, so it performs better than the conventional converters. The main tasks of this converter in the subsystem of satellite energy supply are maximum power points tracking (MPPT), battery charging and line dc voltage regulation. Normally, three separate converters are required to provide these tasks. By increasing the power electronic devices, the volume and weight of the satellite will go up. This is not desirable, therefore, must use a comprehensive circuit to perform the three above tasks at the same time. The proposed converter has an integrated structure with only four switches that controlled by different duty cycles. Also this converter has a uni-directional input for connecting the solar array and a bi-directional input for connecting the battery. Based on charging or discharging state of the battery, three operation modes are defined for this converter. One of the prominent features of the proposed converter is the battery bases grounded, so the noise cannot damage the battery and so on increase the useful life of battery. Theoretical analysis of the proposed converter is verified by simulation results for different operation conditions.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114980660","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 : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697247
Milad Heidari, H. Farzanehfard, Morteza Esteki
In this paper, a novel step-up converter with single-switch, single-magnetic core and continuous input current is presented for photovoltaic applications. The proposed converter is obtained by integrating boost and Cuk converters so that only one switch and one magnetic core is utilized to provide a high voltage gain. This topology reduces voltage stress across the converter switch and diodes, and provides higher voltage gain compared with the basic boost and Cuk converters. Thus, high-quality and low-voltage MOSFET at moderate duty cycles can be used to increase the converter efficiency. Operating principles and experimental results of the proposed converter are presented in this study to demonstrate the validity of theoretical analysis.
{"title":"Single-Switch Single-Magnetic Core High Step-up Converter with Continuous Input Current and Reduced Voltage Stress for Photovoltaic Applications","authors":"Milad Heidari, H. Farzanehfard, Morteza Esteki","doi":"10.1109/PEDSTC.2019.8697247","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697247","url":null,"abstract":"In this paper, a novel step-up converter with single-switch, single-magnetic core and continuous input current is presented for photovoltaic applications. The proposed converter is obtained by integrating boost and Cuk converters so that only one switch and one magnetic core is utilized to provide a high voltage gain. This topology reduces voltage stress across the converter switch and diodes, and provides higher voltage gain compared with the basic boost and Cuk converters. Thus, high-quality and low-voltage MOSFET at moderate duty cycles can be used to increase the converter efficiency. Operating principles and experimental results of the proposed converter are presented in this study to demonstrate the validity of theoretical analysis.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115609503","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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