Pub Date : 1900-01-01DOI: 10.1109/IESES.2018.8349880
A. Praneeth, N. A. Azeez, Lalit Patnaik, S. Williamson
A Power Factor Correction (PFC) converter comprises the initial stage of a grid connected on-board battery charger for electric vehicles. Generally, the control scheme for the nested PFC converter consists of two Proportional Integral (PI) controllers for maintaining the input current and the intermediate DC voltage respectively. The problem with the PI current controller is its inability to track the reference sine wave signal when there is a sudden change in load, which introduces the harmonic distortions at the input current. To overcome these issues, this paper proposes the design of a Proportional Resonant (PR) current controller for the front-end rectifier in a universal battery charger. A 1 kW PFC converter with PR controller under different load conditions is simulated and presented in this paper.
{"title":"Proportional resonant controllers in on-board battery chargers for electric transportation","authors":"A. Praneeth, N. A. Azeez, Lalit Patnaik, S. Williamson","doi":"10.1109/IESES.2018.8349880","DOIUrl":"https://doi.org/10.1109/IESES.2018.8349880","url":null,"abstract":"A Power Factor Correction (PFC) converter comprises the initial stage of a grid connected on-board battery charger for electric vehicles. Generally, the control scheme for the nested PFC converter consists of two Proportional Integral (PI) controllers for maintaining the input current and the intermediate DC voltage respectively. The problem with the PI current controller is its inability to track the reference sine wave signal when there is a sudden change in load, which introduces the harmonic distortions at the input current. To overcome these issues, this paper proposes the design of a Proportional Resonant (PR) current controller for the front-end rectifier in a universal battery charger. A 1 kW PFC converter with PR controller under different load conditions is simulated and presented in this paper.","PeriodicalId":146951,"journal":{"name":"2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124916029","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 : 1900-01-01DOI: 10.1109/IESES.2018.8349867
Manmohan Mahapatra, Anirban Pal, K. Basu
This paper describes a cascaded multilevel converter topology for direct medium voltage grid integration of photovoltaic sources. The topology uses high frequency magnetic isolation and hence, reducing volume and cost of overall system. The topology is single stage and does not have any inter-stage bulky filter capacitor, thus improving reliability. The low voltage DC side converter active switches are high frequency switched. These active switches are zero voltage switched (ZVS) for most part of the line cycle. The soft-switching is achieved without additional snubber elements. The active switches interfacing the medium voltage grid are switched at line frequency incurring negligible switching loss. The converter has modular structure which also has added advantages of easy repair-replacement. Modulation strategy and soft-switching technique are analyzed in detail. Key simulation results are presented to verify the circuit operation.
{"title":"Soft switched multilevel unidirectional high frequency link DC/AC converter for medium voltage grid integration","authors":"Manmohan Mahapatra, Anirban Pal, K. Basu","doi":"10.1109/IESES.2018.8349867","DOIUrl":"https://doi.org/10.1109/IESES.2018.8349867","url":null,"abstract":"This paper describes a cascaded multilevel converter topology for direct medium voltage grid integration of photovoltaic sources. The topology uses high frequency magnetic isolation and hence, reducing volume and cost of overall system. The topology is single stage and does not have any inter-stage bulky filter capacitor, thus improving reliability. The low voltage DC side converter active switches are high frequency switched. These active switches are zero voltage switched (ZVS) for most part of the line cycle. The soft-switching is achieved without additional snubber elements. The active switches interfacing the medium voltage grid are switched at line frequency incurring negligible switching loss. The converter has modular structure which also has added advantages of easy repair-replacement. Modulation strategy and soft-switching technique are analyzed in detail. Key simulation results are presented to verify the circuit operation.","PeriodicalId":146951,"journal":{"name":"2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129713044","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 : 1900-01-01DOI: 10.1109/IESES.2018.8349861
Fan Zhang, Tao Peng, Hanbing Dan, Jianheng Lin, M. Su
In this paper a modulated model predictive control (MMPC) scheme for permanent magnet synchronous motor is proposed. The proposed strategy combines field orientation control with modulated model predictive control. It not only ensures the quick response of the system and low torque ripple of PMSM, but also obtains a fixed switching frequency. Eventually, simulation results validate the perfect performance of the proposed method.
{"title":"Modulated model predictive control of permanent magnet synchronous motor","authors":"Fan Zhang, Tao Peng, Hanbing Dan, Jianheng Lin, M. Su","doi":"10.1109/IESES.2018.8349861","DOIUrl":"https://doi.org/10.1109/IESES.2018.8349861","url":null,"abstract":"In this paper a modulated model predictive control (MMPC) scheme for permanent magnet synchronous motor is proposed. The proposed strategy combines field orientation control with modulated model predictive control. It not only ensures the quick response of the system and low torque ripple of PMSM, but also obtains a fixed switching frequency. Eventually, simulation results validate the perfect performance of the proposed method.","PeriodicalId":146951,"journal":{"name":"2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129735255","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 : 1900-01-01DOI: 10.1109/IESES.2018.8349917
Dulsha K. Abeywardardana, A. Hu, Z. Salcic
This paper presents the overall design and implementation of a microactuator which is wirelessly powered and driven by electropermanent magnets. Electropermanent magnet based actuation allows for the actuator to consume power merely during actuation with zero power consumption in between actuations. This has significantly reduced the energy requirement of the actuator, making it easier to be powered wirelessly using inductive power transfer technologies. The wireless power system is designed to host the primary power track on the main control platform with the secondary pickup connected to the microactuator. Power is delivered wirelessly to charge the onboard supercapacitor energy buffer which facilitates the peak power requirement during actuation, which cannot be easily met by a low power wireless power system. Experimental results have shown that the actuator uses 2.5mJ of energy per actuation with the peak power requirement of 40W during the 120μ« actuation period, while the wireless power supply is rated up to 1.12W at steady state. The actuator is capable of generating a maximum holding force up to 220mN and deflections up to 2.5mm.
{"title":"Wirelessly powered microactuators","authors":"Dulsha K. Abeywardardana, A. Hu, Z. Salcic","doi":"10.1109/IESES.2018.8349917","DOIUrl":"https://doi.org/10.1109/IESES.2018.8349917","url":null,"abstract":"This paper presents the overall design and implementation of a microactuator which is wirelessly powered and driven by electropermanent magnets. Electropermanent magnet based actuation allows for the actuator to consume power merely during actuation with zero power consumption in between actuations. This has significantly reduced the energy requirement of the actuator, making it easier to be powered wirelessly using inductive power transfer technologies. The wireless power system is designed to host the primary power track on the main control platform with the secondary pickup connected to the microactuator. Power is delivered wirelessly to charge the onboard supercapacitor energy buffer which facilitates the peak power requirement during actuation, which cannot be easily met by a low power wireless power system. Experimental results have shown that the actuator uses 2.5mJ of energy per actuation with the peak power requirement of 40W during the 120μ« actuation period, while the wireless power supply is rated up to 1.12W at steady state. The actuator is capable of generating a maximum holding force up to 220mN and deflections up to 2.5mm.","PeriodicalId":146951,"journal":{"name":"2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126559404","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 : 1900-01-01DOI: 10.1109/IESES.2018.8349897
Sebastian Lange, Chaojie Li, E. Scholl, Xinghuo Yu
Economic Load Dispatch (ELD) with non-smooth, non-convex cost functions (NSNC CF) has been broadly researched for several decades. Due to the characteristics of the state space it is often tackled using meta-heuristic optimization techniques. The main focus of research to improve the optimization quality and performance has been trying numerous types and variations of meta-heuristics. However has little attention been given to the characteristics of both CF and state space. This paper analyses a six generating unit (GU) test system to derive three assumptions targeting the location of high quality states within NSNC ELD state space. Subsequently these assumptions are implemented into algorithms to improve the performance of meta-heuristics on NSNC ELD-problems. Finally numerical simulation are used to underpin or refute these assumptions.
{"title":"Approximating low cost state space areas in economic load dispatch with valve-point loading effects","authors":"Sebastian Lange, Chaojie Li, E. Scholl, Xinghuo Yu","doi":"10.1109/IESES.2018.8349897","DOIUrl":"https://doi.org/10.1109/IESES.2018.8349897","url":null,"abstract":"Economic Load Dispatch (ELD) with non-smooth, non-convex cost functions (NSNC CF) has been broadly researched for several decades. Due to the characteristics of the state space it is often tackled using meta-heuristic optimization techniques. The main focus of research to improve the optimization quality and performance has been trying numerous types and variations of meta-heuristics. However has little attention been given to the characteristics of both CF and state space. This paper analyses a six generating unit (GU) test system to derive three assumptions targeting the location of high quality states within NSNC ELD state space. Subsequently these assumptions are implemented into algorithms to improve the performance of meta-heuristics on NSNC ELD-problems. Finally numerical simulation are used to underpin or refute these assumptions.","PeriodicalId":146951,"journal":{"name":"2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117008185","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 : 1900-01-01DOI: 10.1109/IESES.2018.8349875
Chen Liu, Rui Ma, B. Hao, Huan Luo, F. Gao, Franck Gechter
Hardware in the loop (HIL) test provides a timesaving and safe environment for testing prototypes. However, the main difficulty for the real time simulation of power electronic system is the modeling method for the complex system. This paper proposes a modeling method for traction system in high speed train for transportation application. In this paper, it proposes hardware in the loop test setup for railway high-speed train with field-programmable gate array (FPGA) boards of dSPACE simulator. Besides, in order to meet the computing power requirement of the system modeling, a multi-processor system of dSPACE is achieved through Gigalink connection. The whole HIL system can be used to evaluate both the hardware and software performance of traction control unit (TCU). The real time simulation results under steady-state and transient conditions demonstrate modeling accuracy and provide detailed insight into the development of this vehicle.
{"title":"FPGA based hardware in the loop test of railway traction system","authors":"Chen Liu, Rui Ma, B. Hao, Huan Luo, F. Gao, Franck Gechter","doi":"10.1109/IESES.2018.8349875","DOIUrl":"https://doi.org/10.1109/IESES.2018.8349875","url":null,"abstract":"Hardware in the loop (HIL) test provides a timesaving and safe environment for testing prototypes. However, the main difficulty for the real time simulation of power electronic system is the modeling method for the complex system. This paper proposes a modeling method for traction system in high speed train for transportation application. In this paper, it proposes hardware in the loop test setup for railway high-speed train with field-programmable gate array (FPGA) boards of dSPACE simulator. Besides, in order to meet the computing power requirement of the system modeling, a multi-processor system of dSPACE is achieved through Gigalink connection. The whole HIL system can be used to evaluate both the hardware and software performance of traction control unit (TCU). The real time simulation results under steady-state and transient conditions demonstrate modeling accuracy and provide detailed insight into the development of this vehicle.","PeriodicalId":146951,"journal":{"name":"2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)","volume":"389 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131913103","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 : 1900-01-01DOI: 10.1109/ieses.2018.8349856
Jie Li, Yanzhao Guo, Li-Heng Zhang, Wenku Shi
Passivity control of permanent magnet synchronous generator based on dual PWM converter can improve the system robustness. However, the DC bus voltage fluctuation still exists in the system because of the separated control for the generator-side converter and the grid-side converter. By introducing the grid-side dynamic power error into the passivity control, a novel coordinated passivity control scheme is proposed in this paper, in order to suppress the DC bus voltage fluctuation. The port controlled dissipative Hamiltonian system model of the permanent magnet synchronous generator system is established based on the dual PWM converter, furthermore, the original Hamiltonian energy function of the system is matched to the expected Hamiltonian energy function by the energy re-shaping. Moreover, the main factor of the DC bus voltage fluctuation is analyzed from the point of view of the expected Hamiltonian energy function. Compared with the traditional power feedforward control method, the system has no feedforward effect at the steady state, which proves the steady-state performance of the grid-side converter. The simulation results and the experimental results show that the proposed coordinated passivity control scheme can suppress the DC bus voltage fluctuation effectively.
{"title":"Coordinated passivity control of permanent magnet synchronous generator based on dual PWM converter","authors":"Jie Li, Yanzhao Guo, Li-Heng Zhang, Wenku Shi","doi":"10.1109/ieses.2018.8349856","DOIUrl":"https://doi.org/10.1109/ieses.2018.8349856","url":null,"abstract":"Passivity control of permanent magnet synchronous generator based on dual PWM converter can improve the system robustness. However, the DC bus voltage fluctuation still exists in the system because of the separated control for the generator-side converter and the grid-side converter. By introducing the grid-side dynamic power error into the passivity control, a novel coordinated passivity control scheme is proposed in this paper, in order to suppress the DC bus voltage fluctuation. The port controlled dissipative Hamiltonian system model of the permanent magnet synchronous generator system is established based on the dual PWM converter, furthermore, the original Hamiltonian energy function of the system is matched to the expected Hamiltonian energy function by the energy re-shaping. Moreover, the main factor of the DC bus voltage fluctuation is analyzed from the point of view of the expected Hamiltonian energy function. Compared with the traditional power feedforward control method, the system has no feedforward effect at the steady state, which proves the steady-state performance of the grid-side converter. The simulation results and the experimental results show that the proposed coordinated passivity control scheme can suppress the DC bus voltage fluctuation effectively.","PeriodicalId":146951,"journal":{"name":"2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122630762","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 : 1900-01-01DOI: 10.1109/IESES.2018.8349874
Rishi Menon, N. A. Azeez, Arvind H Kadam, S. Williamson
The critical components in electric vehicle (EV) propulsion system are the traction inverter and motor. For better performance of the EV, it is important to operate traction inverter/motor at optimal efficiency points over the entire drive cycle. The significant advances in pulse width modulation (PWM) techniques has helped to improve the efficiency of the traction drive. Hence this paper aims at the modeling of the traction inverter with different PWM techniques, over different city driving schedules and analyze the energy losses in the semiconductor devices. The paper presents the thermal model based analysis of DC/AC inverter considering the conduction and switching losses for both insulated gate bipolar transistor (IGBT) and antiparallel diodes as a switch. An induction motor driving a medium-sized EV, has been modeled in the PLECS software. The energy loss calculation is carried out based on device characteristics. The losses are observed for both cold start and hot starts, based on the heat sink temperature.
{"title":"Energy loss analysis of traction inverter drive for different PWM techniques and drive cycles","authors":"Rishi Menon, N. A. Azeez, Arvind H Kadam, S. Williamson","doi":"10.1109/IESES.2018.8349874","DOIUrl":"https://doi.org/10.1109/IESES.2018.8349874","url":null,"abstract":"The critical components in electric vehicle (EV) propulsion system are the traction inverter and motor. For better performance of the EV, it is important to operate traction inverter/motor at optimal efficiency points over the entire drive cycle. The significant advances in pulse width modulation (PWM) techniques has helped to improve the efficiency of the traction drive. Hence this paper aims at the modeling of the traction inverter with different PWM techniques, over different city driving schedules and analyze the energy losses in the semiconductor devices. The paper presents the thermal model based analysis of DC/AC inverter considering the conduction and switching losses for both insulated gate bipolar transistor (IGBT) and antiparallel diodes as a switch. An induction motor driving a medium-sized EV, has been modeled in the PLECS software. The energy loss calculation is carried out based on device characteristics. The losses are observed for both cold start and hot starts, based on the heat sink temperature.","PeriodicalId":146951,"journal":{"name":"2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128678985","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 : 1900-01-01DOI: 10.1109/IESES.2018.8349853
Haifang Wen, C. Lam, Wai-Hei Choi, Chikong Wong, M. Wong
This project designed and implemented a high-performance DC-DC KY boost converter for photovoltaic application. Targeting at the growing solar energy market, the proposed PV generation system is used to directly transfer the power from PV panel to AC power grid. The system adopted a topology of DC-DC converter called KY converter to step up DC voltage to a suitable level. Its characteristics include high efficiency, fast transient response, and small output voltage ripple, in comparison with the traditional DC-DC boost topologies. With feedback control circuits with digital signal processor (DSP), system can adjust the output level immediately. After the correctness of the system, the design was verified by simulation for both continuous conduction mode (CCM) and discontinuous conduction mode (DCM) of KY boost converter; experiments for CCM was conducted, which showed a peak efficiency of 97.0% in 1.2kW load condition, with 0.5% low voltage ripple and transient response time within 25ms.
{"title":"A 97.0% maximum efficiency, fast response, low voltage ripple KY boost converter for photovoltaic application","authors":"Haifang Wen, C. Lam, Wai-Hei Choi, Chikong Wong, M. Wong","doi":"10.1109/IESES.2018.8349853","DOIUrl":"https://doi.org/10.1109/IESES.2018.8349853","url":null,"abstract":"This project designed and implemented a high-performance DC-DC KY boost converter for photovoltaic application. Targeting at the growing solar energy market, the proposed PV generation system is used to directly transfer the power from PV panel to AC power grid. The system adopted a topology of DC-DC converter called KY converter to step up DC voltage to a suitable level. Its characteristics include high efficiency, fast transient response, and small output voltage ripple, in comparison with the traditional DC-DC boost topologies. With feedback control circuits with digital signal processor (DSP), system can adjust the output level immediately. After the correctness of the system, the design was verified by simulation for both continuous conduction mode (CCM) and discontinuous conduction mode (DCM) of KY boost converter; experiments for CCM was conducted, which showed a peak efficiency of 97.0% in 1.2kW load condition, with 0.5% low voltage ripple and transient response time within 25ms.","PeriodicalId":146951,"journal":{"name":"2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116717563","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 : 1900-01-01DOI: 10.1109/IESES.2018.8349914
Khadijat Hassan, S. Pan, P. Jain
In recent years, wireless power transfer technology has come to limelight because of its possibility of providing viable solutions to the challenges encountered by electronic device consumers when using traditional methods of charging batteries. This paper presents a multiple receiver wireless power transfer system for charging mobile phone batteries. The circuit consists of a transmitter and two receiver systems. A mathematical analysis of the circuit is carried out and simulated to understand its behavior with variation in coupling coefficient and load. In order to charge mobile phones without an extra communication module over a wide range of coupling coefficients, a variable frequency control algorithm is used. The transmitter circuit uses the algorithm to track the maximum input power of the system. The output voltage of the receiver circuit is controlled to meet the power requirement of the load as coupling coefficient varies by using a switch capacitor modeled as two back to back connected MOSFETs with their drain-to-source capacitance. The proposed converter circuit topology is simulated and the results are presented. The circuit operates over a wide range of coupling coefficient and the power requirement of the mobile phones are met without using an extra communication module. The resonance frequency of the circuit is 5.7MHZ and it is design to deliver 10W (5V, 2A) each to two mobile phones.
{"title":"Multiple receiver wireless power charger for mobile electronic devices in near field","authors":"Khadijat Hassan, S. Pan, P. Jain","doi":"10.1109/IESES.2018.8349914","DOIUrl":"https://doi.org/10.1109/IESES.2018.8349914","url":null,"abstract":"In recent years, wireless power transfer technology has come to limelight because of its possibility of providing viable solutions to the challenges encountered by electronic device consumers when using traditional methods of charging batteries. This paper presents a multiple receiver wireless power transfer system for charging mobile phone batteries. The circuit consists of a transmitter and two receiver systems. A mathematical analysis of the circuit is carried out and simulated to understand its behavior with variation in coupling coefficient and load. In order to charge mobile phones without an extra communication module over a wide range of coupling coefficients, a variable frequency control algorithm is used. The transmitter circuit uses the algorithm to track the maximum input power of the system. The output voltage of the receiver circuit is controlled to meet the power requirement of the load as coupling coefficient varies by using a switch capacitor modeled as two back to back connected MOSFETs with their drain-to-source capacitance. The proposed converter circuit topology is simulated and the results are presented. The circuit operates over a wide range of coupling coefficient and the power requirement of the mobile phones are met without using an extra communication module. The resonance frequency of the circuit is 5.7MHZ and it is design to deliver 10W (5V, 2A) each to two mobile phones.","PeriodicalId":146951,"journal":{"name":"2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116739497","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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