Pub Date : 2018-12-01DOI: 10.1109/SPEC.2018.8635961
Yao Zhang, Xin Zhang
Fuel-cell vehicles have the potential to revolutionize transportation. An Energy Management System (EMS) for power-split with fuzzy logic control (FLC) for Fuel Cell Hybrid Electric Vehicles (FCHEV) powertrain is proposed in this paper. A comprehensive analysis of powertrain for EMS including motor, power electronic converter, mechanical system, physical components, is presented, different simulation time-step and all kinds of drive operation conditions are fully considered as well. The regenerative power control and battery local energy controller is introduced to make sure the SOC of battery is adjustable without over-voltage and under-voltage. The simulation results show that the optimized method can keep battery SOC work at expected level, absorb the maximum regenerative braking energy, and reduce the dynamic load of fuel cell to avoid the fuel-starvation phenome.
{"title":"An Optimized Power-Split Method Based on Fuzzy Logic Control for Fuel Cell-Battery FCHEV Powertrain","authors":"Yao Zhang, Xin Zhang","doi":"10.1109/SPEC.2018.8635961","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635961","url":null,"abstract":"Fuel-cell vehicles have the potential to revolutionize transportation. An Energy Management System (EMS) for power-split with fuzzy logic control (FLC) for Fuel Cell Hybrid Electric Vehicles (FCHEV) powertrain is proposed in this paper. A comprehensive analysis of powertrain for EMS including motor, power electronic converter, mechanical system, physical components, is presented, different simulation time-step and all kinds of drive operation conditions are fully considered as well. The regenerative power control and battery local energy controller is introduced to make sure the SOC of battery is adjustable without over-voltage and under-voltage. The simulation results show that the optimized method can keep battery SOC work at expected level, absorb the maximum regenerative braking energy, and reduce the dynamic load of fuel cell to avoid the fuel-starvation phenome.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123850527","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 : 2018-12-01DOI: 10.1109/SPEC.2018.8635880
N. M. Mukhtar, D. Lu
An isolated bidirectional forward DC/DC converter is presented. The proposed converter is formed by combining two identical two-switch forward converters through a shared transformer. The transformer also integrates the function of the output inductors on both sides into a single magnetic structure. The proposed topology offers low voltage stress on the power switches due to the voltage clamp and recycling of leakage energy to the source. The main goal of this paper is to show the operation principle and capability of the proposed topology as a bidirectional converter with less switching stress and reduce component count. Finally, a hardware prototype is built and tested to validate the theoretical analysis in the continuous conduction mode (CCM).
{"title":"An Isolated Bidirectional Forward Converter with Integrated Output Inductor-Transformer Structure","authors":"N. M. Mukhtar, D. Lu","doi":"10.1109/SPEC.2018.8635880","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635880","url":null,"abstract":"An isolated bidirectional forward DC/DC converter is presented. The proposed converter is formed by combining two identical two-switch forward converters through a shared transformer. The transformer also integrates the function of the output inductors on both sides into a single magnetic structure. The proposed topology offers low voltage stress on the power switches due to the voltage clamp and recycling of leakage energy to the source. The main goal of this paper is to show the operation principle and capability of the proposed topology as a bidirectional converter with less switching stress and reduce component count. Finally, a hardware prototype is built and tested to validate the theoretical analysis in the continuous conduction mode (CCM).","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122428907","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 : 2018-12-01DOI: 10.1109/SPEC.2018.8635947
Jiale Yu, Jingyang Fang, Yi Tang
To alleviate air pollution and energy shortage issues, an increasing amount of renewable energy sources (RESs), such as wind power and solar photovoltaics (PVs), has been integrated into modern power systems. However, the large penetration level of renewable energies leads to the reduction of inertia as RESs are normally connected to the power grid through power electronics converters, which do not inherently provide the inertia as synchronous generators do. To solve the lack of inertia issue, this paper proposes the method of using flywheel energy storage systems (FESSs) to provide the virtual inertia and frequency support. As compared with batteries, flywheels have a much longer lifetime and higher power density. By regulating the speed of the flywheel in proportion to the grid frequency, the flywheel serves as an energy buffer that absorbs and releases its kinetic energy to provide inertia support. Furthermore, the design methods of the virtual inertia emulated by FESSs are described in detail. Finally, the feasibility of the proposed method is verified by simulations, and the simulation results validate the improvement of frequency regulation in terms of frequency nadir and rate of change of frequency (RoCoF).
{"title":"Inertia Emulation by Flywheel Energy Storage System for Improved Frequency Regulation","authors":"Jiale Yu, Jingyang Fang, Yi Tang","doi":"10.1109/SPEC.2018.8635947","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635947","url":null,"abstract":"To alleviate air pollution and energy shortage issues, an increasing amount of renewable energy sources (RESs), such as wind power and solar photovoltaics (PVs), has been integrated into modern power systems. However, the large penetration level of renewable energies leads to the reduction of inertia as RESs are normally connected to the power grid through power electronics converters, which do not inherently provide the inertia as synchronous generators do. To solve the lack of inertia issue, this paper proposes the method of using flywheel energy storage systems (FESSs) to provide the virtual inertia and frequency support. As compared with batteries, flywheels have a much longer lifetime and higher power density. By regulating the speed of the flywheel in proportion to the grid frequency, the flywheel serves as an energy buffer that absorbs and releases its kinetic energy to provide inertia support. Furthermore, the design methods of the virtual inertia emulated by FESSs are described in detail. Finally, the feasibility of the proposed method is verified by simulations, and the simulation results validate the improvement of frequency regulation in terms of frequency nadir and rate of change of frequency (RoCoF).","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128329227","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 : 2018-12-01DOI: 10.1109/SPEC.2018.8636054
Leandro T. Omine, M. D. de Brito, J. Pinto, R. García
Photovoltaic generation systems under partial shading conditions are difficult to optimize using conventional maximum power point tracking (MPPT) algorithms. Most of the techniques developed for these conditions fail to track dynamically the MPP and leads to energy losses during normal operation. This paper presents hybrid MPPT algorithms combining global and local MPPTs to extract the most available energy from the system under any condition. The methods are compared through simulations using Matlab/Simulink®, where the tracking factor (TF) and power characteristics during time are evaluated.
{"title":"Hybrid MPPT Algorithms for Photovoltaic Systems","authors":"Leandro T. Omine, M. D. de Brito, J. Pinto, R. García","doi":"10.1109/SPEC.2018.8636054","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8636054","url":null,"abstract":"Photovoltaic generation systems under partial shading conditions are difficult to optimize using conventional maximum power point tracking (MPPT) algorithms. Most of the techniques developed for these conditions fail to track dynamically the MPP and leads to energy losses during normal operation. This paper presents hybrid MPPT algorithms combining global and local MPPTs to extract the most available energy from the system under any condition. The methods are compared through simulations using Matlab/Simulink®, where the tracking factor (TF) and power characteristics during time are evaluated.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127544990","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 : 2018-12-01DOI: 10.1109/SPEC.2018.8636090
D. Jayamaha, N. Lidula, A. Rajapakse
Low voltage DC microgrids (DCMGs) are future power systems to meet the increasing energy demand and solve problems caused by conventional power systems. Although DCMGs have some clear advantages over AC microgrids, several DCMG issues are still open for study. DCMG system grounding is such an issue, and realizing a suitable grounding scheme would accelerate the integration of DCMGs to the utility network. To design suitable grounding and protection scheme for DCMGs, it is important to determine transient and steady state ground fault characteristics of the system. In this paper ground faults with different grounding configurations are simulated (PSCAD/EMTDC) and results are analyzed to identify grounding configurations and ground fault detection schemes, which enables reliable fault detection and uninterrupted supply to the loads.
{"title":"Ground Fault Analysis and Grounding Design Considerations in DC Microgrids","authors":"D. Jayamaha, N. Lidula, A. Rajapakse","doi":"10.1109/SPEC.2018.8636090","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8636090","url":null,"abstract":"Low voltage DC microgrids (DCMGs) are future power systems to meet the increasing energy demand and solve problems caused by conventional power systems. Although DCMGs have some clear advantages over AC microgrids, several DCMG issues are still open for study. DCMG system grounding is such an issue, and realizing a suitable grounding scheme would accelerate the integration of DCMGs to the utility network. To design suitable grounding and protection scheme for DCMGs, it is important to determine transient and steady state ground fault characteristics of the system. In this paper ground faults with different grounding configurations are simulated (PSCAD/EMTDC) and results are analyzed to identify grounding configurations and ground fault detection schemes, which enables reliable fault detection and uninterrupted supply to the loads.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125400151","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 : 2018-12-01DOI: 10.1109/SPEC.2018.8635926
Hongyi Liu, Hua Han, Yao Liu, M. Su, Xiaochao Hou, Xin Zhang
A minimize communication control method is proposed for photovoltaic (PV) grid-connected systems with cascaded H-bridge inverters. In the system used in this paper, PV panel in each unit is directly connected to the input port of the local H-bridge, then the output ports of these H-bridge inverters are cascaded with each other, each PV unit works at its maximum power point (MPP) to guarantee system’s maximum power generation efficiency. With communication, the inverter that connect to the point of common coupling (PCC) is controlled as a current source to keep synchronous operation with the utility grid by regulating its output current in phase with the grid voltage. The other cascaded inverters are controlled as voltage resources and keeping self-synchronization with unity power factor (PF) by the proposed control method without any communication. Finally, the common link current drives all cascaded inverters keep self-synchronization with the grid and provide maximum power with high quality to the grid. Compare with other control methods, the proposed control method only requires one communication link, the communication cost is effectively reduced, the reliability and power quality of the system are greatly improved. Simulation test verifies the correctness and validity of the proposed control strategy.
{"title":"A Min-communication Control for Grid-connected Cascaded PV Inverters","authors":"Hongyi Liu, Hua Han, Yao Liu, M. Su, Xiaochao Hou, Xin Zhang","doi":"10.1109/SPEC.2018.8635926","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635926","url":null,"abstract":"A minimize communication control method is proposed for photovoltaic (PV) grid-connected systems with cascaded H-bridge inverters. In the system used in this paper, PV panel in each unit is directly connected to the input port of the local H-bridge, then the output ports of these H-bridge inverters are cascaded with each other, each PV unit works at its maximum power point (MPP) to guarantee system’s maximum power generation efficiency. With communication, the inverter that connect to the point of common coupling (PCC) is controlled as a current source to keep synchronous operation with the utility grid by regulating its output current in phase with the grid voltage. The other cascaded inverters are controlled as voltage resources and keeping self-synchronization with unity power factor (PF) by the proposed control method without any communication. Finally, the common link current drives all cascaded inverters keep self-synchronization with the grid and provide maximum power with high quality to the grid. Compare with other control methods, the proposed control method only requires one communication link, the communication cost is effectively reduced, the reliability and power quality of the system are greatly improved. Simulation test verifies the correctness and validity of the proposed control strategy.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121650783","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 : 2018-12-01DOI: 10.1109/SPEC.2018.8635993
Pratikanta Mishra, A. Banerjee, H. Nannam, Mousam Ghosh
With all the recent advancement in the domain of permanent magnet brushless dc (BLDC) motor control, many of the advanced and low cost control schemes are proposed. Despite of having multiple constructions based inherent advantages like reduced maintenance cost, high torque to weight ratio and others, BLDC motors still find sparse commercial applications. Conventionally used induction and dc machines have low initial cost and also are rugged. If maintenance cost, efficiency and volume are solely considered BLDC motors is undoubtedly the most preferable option. However, the extra cost involved with the compulsory power electronic converter to drive the motor makes the industries reluctant towards BLDC motor applications. Digital pulse width modulation (DPWM) technique was introduced to eliminate the usage of costly processors involved for the switching control of the converter. Digital PWM control is a simple approach and also can be implemented in reduced cost application specific integrated circuits (ASIC). The main disadvantage of digital PWM is the speed and torque ripples generated due to fixed duty cycles of the converter. This paper introduces a new modified digital PWM technique to eliminate the speed ripples in BLDC motor. The controller is designed in simulation environment and the same is also validated.
{"title":"A Novel Modified Digital PWM Control Technique to Reduce Speed Ripples in BLDC Motors","authors":"Pratikanta Mishra, A. Banerjee, H. Nannam, Mousam Ghosh","doi":"10.1109/SPEC.2018.8635993","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635993","url":null,"abstract":"With all the recent advancement in the domain of permanent magnet brushless dc (BLDC) motor control, many of the advanced and low cost control schemes are proposed. Despite of having multiple constructions based inherent advantages like reduced maintenance cost, high torque to weight ratio and others, BLDC motors still find sparse commercial applications. Conventionally used induction and dc machines have low initial cost and also are rugged. If maintenance cost, efficiency and volume are solely considered BLDC motors is undoubtedly the most preferable option. However, the extra cost involved with the compulsory power electronic converter to drive the motor makes the industries reluctant towards BLDC motor applications. Digital pulse width modulation (DPWM) technique was introduced to eliminate the usage of costly processors involved for the switching control of the converter. Digital PWM control is a simple approach and also can be implemented in reduced cost application specific integrated circuits (ASIC). The main disadvantage of digital PWM is the speed and torque ripples generated due to fixed duty cycles of the converter. This paper introduces a new modified digital PWM technique to eliminate the speed ripples in BLDC motor. The controller is designed in simulation environment and the same is also validated.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121769183","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 : 2018-12-01DOI: 10.1109/SPEC.2018.8635857
Yiyang Li, John Long Soon, S. Sathiakumar
Based on the concept of the conventional quadratic boost converter, an improved topology is presented in this paper. In this design, a coupled-inductor will be utilized to increase the voltage gain of the circuit. The most significant advantage of this converter design is that the circuit has a high step-up ratio with a very low voltage stress on the switch. Moreover, this circuit utilizes minimum additional component to improve the converter performances. The inductor selection of this converter design is to ensure working in continuous-current mode (CCM) for various load conditions. Detailed circuit operation principle and theoretical voltage conversion ratio is derived. Finally, converter prototype was built to verify that using different coupling ratio can achieve high step up voltage gain capability.
{"title":"Improved quadratic boost converter using cross coupled-inductor","authors":"Yiyang Li, John Long Soon, S. Sathiakumar","doi":"10.1109/SPEC.2018.8635857","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635857","url":null,"abstract":"Based on the concept of the conventional quadratic boost converter, an improved topology is presented in this paper. In this design, a coupled-inductor will be utilized to increase the voltage gain of the circuit. The most significant advantage of this converter design is that the circuit has a high step-up ratio with a very low voltage stress on the switch. Moreover, this circuit utilizes minimum additional component to improve the converter performances. The inductor selection of this converter design is to ensure working in continuous-current mode (CCM) for various load conditions. Detailed circuit operation principle and theoretical voltage conversion ratio is derived. Finally, converter prototype was built to verify that using different coupling ratio can achieve high step up voltage gain capability.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126548830","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 : 2018-12-01DOI: 10.1109/SPEC.2018.8635900
Y. Nie, Chiyao Feng, Chunlei Zhang, Qingfeng Zhang
Wide-area control has been suggested to enhance the dynamic performance of interconnected power systems. However, time delay caused by a wide area of signal transmission may be detrimental to the performance of a damping controller for interarea oscillations. Based on Pade approximation, the investigators of the present work convert time delay into a state-space expression and build the linear model of a closed-loop power system with time delay and subsequently build the relationship model that describes the effects of time delay on the critical modes of a power system. Jacobi-Davidson method is employed to study the influence of time delay on the interarea, local, and time delay control modes. Simulation results illustrate the validity of this method in resolving the influence law of time delay and provide theoretical evidence for an interarea damping controller design for a large-scale power system.
{"title":"Research on Influence of Time Delay on Critical Modes for Interconnected Grid","authors":"Y. Nie, Chiyao Feng, Chunlei Zhang, Qingfeng Zhang","doi":"10.1109/SPEC.2018.8635900","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635900","url":null,"abstract":"Wide-area control has been suggested to enhance the dynamic performance of interconnected power systems. However, time delay caused by a wide area of signal transmission may be detrimental to the performance of a damping controller for interarea oscillations. Based on Pade approximation, the investigators of the present work convert time delay into a state-space expression and build the linear model of a closed-loop power system with time delay and subsequently build the relationship model that describes the effects of time delay on the critical modes of a power system. Jacobi-Davidson method is employed to study the influence of time delay on the interarea, local, and time delay control modes. Simulation results illustrate the validity of this method in resolving the influence law of time delay and provide theoretical evidence for an interarea damping controller design for a large-scale power system.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126550734","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 : 2018-12-01DOI: 10.1109/SPEC.2018.8635634
Liang Huang, A. Hu
This paper proposes a new power flow control method for Capacitive Power Transfer (CPT) systems by switching extra parallel capacitors of a class E converter. The control method is implemented in a suboptimum operating mode of the class E converter, which ensures zero voltage switching (ZVS) over a specified range of the parallel capacitance. Equations are derived to describe the characteristics of the system operation and determine the soft switching conditions. Simulations and experimental results have shown the proposed control method can adjust the output power effectively while maintaining ZVS operation, validating the proposed control method.
{"title":"Power Flow Control of Capacitive Power Transfer by Soft Switching of Extra Capacitors in Class E Converter","authors":"Liang Huang, A. Hu","doi":"10.1109/SPEC.2018.8635634","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635634","url":null,"abstract":"This paper proposes a new power flow control method for Capacitive Power Transfer (CPT) systems by switching extra parallel capacitors of a class E converter. The control method is implemented in a suboptimum operating mode of the class E converter, which ensures zero voltage switching (ZVS) over a specified range of the parallel capacitance. Equations are derived to describe the characteristics of the system operation and determine the soft switching conditions. Simulations and experimental results have shown the proposed control method can adjust the output power effectively while maintaining ZVS operation, validating the proposed control method.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132353480","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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