The Experts below are selected from a list of 66192 Experts worldwide ranked by ideXlab platform
Gun-woo Moon - One of the best experts on this subject based on the ideXlab platform.
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hybrid dual full bridge dc dc converter with reduced circulating current Output Filter and conduction loss of rectifier stage for rf power generator application
IEEE Transactions on Power Electronics, 2014Co-Authors: Gun-woo MoonAbstract:In this paper, a hybrid dual full-bridge dc-dc converter for radio frequency (RF) power generator application is proposed to overcome the drawbacks of a conventional phase-shift full-bridge (PSFB) converter such as the large circulating current of the primary side and large Output Filter size. The proposed converter adopts a dual full-bridge hybrid structure with a small series capacitor in the primary side and a full-bridge rectifier with two additional low-voltage-rated diodes in the secondary side. With this structure, the proposed converter has advantages of reduction of circulating current, zero-voltage switching (ZVS) operation of all primary switches, size reduction of the Output inductor, and low conduction loss of the rectifier stage. Furthermore, the proposed converter can regulate the Output voltage very wide by changing the operational mode according to the Output voltage. These advantages result in the improvement of whole load efficiency. The operational principle and analysis of the proposed converter are presented and analyzed. A 3-kW 40-200-V Output laboratory prototype is designed and built to verify the feasibility and the effectiveness of the proposed converter.
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hybrid dual full bridge dc dc converter with reduced circulating current Output Filter and conduction loss of rectifier stage for rf power generator application
IEEE ECCE Asia Downunder, 2013Co-Authors: Gun-woo MoonAbstract:In this paper, a hybrid dual full-bridge DC-DC converter for radio-frequency (RF) power generator application is proposed to overcome the drawbacks of conventional phase-shift full-bridge (PSFB) converter such as large circulating current of primary side and large Output Filter size. The proposed converter adopts dual full-bridge hybrid structure with a small series capacitor in the primary side and full-bridge rectifier with two additional low-voltage-rated diodes in the secondary side. With this structure, the proposed converter has advantages of reduction of circulating current, zero-voltage switching (ZVS) operation of all primary switches, size reduction of Output inductor, and low conduction loss of rectifier stage. Furthermore, the proposed converter can regulate the Output voltage very wide by changing the operational mode according to the Output voltage. These advantages result in the improvement of whole load efficiency. The operational principle and analysis of proposed converter are presented and analyzed. A 3kW 40-200V Output laboratory prototype is designed and built to verify the feasibility and the effectiveness of the proposed converter.
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soft switching dc dc converter with a full zvs range and reduced Output Filter for high voltage applications
IEEE Transactions on Power Electronics, 2013Co-Authors: Gun-woo MoonAbstract:A new soft-switching dc/dc converter, which can solve the drawbacks of existing phase-shifted full-bridge converters such as narrow zero-voltage-switching (ZVS) range, large circulating current, large duty-cycle loss, and a large Output Filter in high-voltage applications, is proposed in this paper. The proposed converter is composed of two symmetric half-bridge inverters that are placed in parallel on the primary side and are driven in a phase-shifting manner to regulate the Output voltage. At the rectifier stage, two full-bridge rectifiers sharing two low-current-rating diodes are employed. This structure allows the proposed converter to have the advantages of a full ZVS range, no problems related to duty-cycle loss, no circulating current, and a significantly reduced Output Filter. In this paper, the circuit configuration, operation principle, and relevant analysis results of the proposed converters are presented. Experimental results on a prototype converter realized with the specification of 80-in plasma display panel sustain power module (320-385 Vdc input, 205 Vdc/5 A Output) validate the theoretical analysis.
William G. Dunford - One of the best experts on this subject based on the ideXlab platform.
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a zero voltage switching full bridge dc dc converter with capacitive Output Filter for plug in hybrid electric vehicle battery charging
IEEE Transactions on Power Electronics, 2013Co-Authors: Deepak Gautam, Wilson Eberle, Fariborz Musavi, William G. DunfordAbstract:In this paper, a novel zero-voltage switching full-bridge converter with trailing edge pulse width modulation and capacitive Output Filter is presented. The target application for this study is the second stage dc-dc converter in a two stage 1.65 kW on-board charger for a plug-in hybrid electric vehicle. For this application the design objective is to achieve high efficiency and low cost in order to minimize the charger size, charging time, and the amount and the cost of electricity drawn from the utility. A detailed converter operation analysis is presented along with simulation and experimental results. In comparison to a benchmark full-bridge with an LC Output Filter, the proposed converter reduces the reverse recovery losses in the secondary rectifier diodes, therefore, enabling a converter switching frequency of 100 kHz. Experimental results are presented for a prototype unit converting 400 V from the input dc link to an Output voltage range of 200-450 V dc at 1650 W. The prototype achieves a peak efficiency of 95.7%.
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A zero voltage switching full-bridge DC-DC converter with capacitive Output Filter for a plug-in-hybrid electric vehicle battery charger
Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, 2012Co-Authors: Deepak Gautam, Murray Edington, Wilson Eberle, Fariborz Musavi, William G. DunfordAbstract:In this paper, a novel zero voltage switching full-bridge converter with trailing edge pulse width modulation and capacitive Output Filter is presented. The target application for this work is the second stage dc-dc converter in a two stage 1.65 kW on-board charger for a plug-in hybrid electric vehicle (PHEV). For this application the design objective is to achieve high efficiency and lower cost in order to minimize the charger size, charging time and the amount and cost of electricity drawn from the utility. A detailed converter operation analysis is presented along with simulation and experimental results. In comparison to a benchmark full-bridge with LC Output Filter, the proposed converter reduces the reverse recovery losses in the secondary rectifier diodes, therefore enabling a converter switching frequency of 100 kHz. Experimental results are presented for a prototype unit converting 400 V from the input dc link to an Output voltage range of 200 V to 450 V dc at 1650 W. The prototype achieves a peak efficiency of 95.7 %.
Deepak Gautam - One of the best experts on this subject based on the ideXlab platform.
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a zero voltage switching full bridge dc dc converter with capacitive Output Filter for plug in hybrid electric vehicle battery charging
IEEE Transactions on Power Electronics, 2013Co-Authors: Deepak Gautam, Wilson Eberle, Fariborz Musavi, William G. DunfordAbstract:In this paper, a novel zero-voltage switching full-bridge converter with trailing edge pulse width modulation and capacitive Output Filter is presented. The target application for this study is the second stage dc-dc converter in a two stage 1.65 kW on-board charger for a plug-in hybrid electric vehicle. For this application the design objective is to achieve high efficiency and low cost in order to minimize the charger size, charging time, and the amount and the cost of electricity drawn from the utility. A detailed converter operation analysis is presented along with simulation and experimental results. In comparison to a benchmark full-bridge with an LC Output Filter, the proposed converter reduces the reverse recovery losses in the secondary rectifier diodes, therefore, enabling a converter switching frequency of 100 kHz. Experimental results are presented for a prototype unit converting 400 V from the input dc link to an Output voltage range of 200-450 V dc at 1650 W. The prototype achieves a peak efficiency of 95.7%.
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A zero voltage switching full-bridge DC-DC converter with capacitive Output Filter for a plug-in-hybrid electric vehicle battery charger
Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, 2012Co-Authors: Deepak Gautam, Murray Edington, Wilson Eberle, Fariborz Musavi, William G. DunfordAbstract:In this paper, a novel zero voltage switching full-bridge converter with trailing edge pulse width modulation and capacitive Output Filter is presented. The target application for this work is the second stage dc-dc converter in a two stage 1.65 kW on-board charger for a plug-in hybrid electric vehicle (PHEV). For this application the design objective is to achieve high efficiency and lower cost in order to minimize the charger size, charging time and the amount and cost of electricity drawn from the utility. A detailed converter operation analysis is presented along with simulation and experimental results. In comparison to a benchmark full-bridge with LC Output Filter, the proposed converter reduces the reverse recovery losses in the secondary rectifier diodes, therefore enabling a converter switching frequency of 100 kHz. Experimental results are presented for a prototype unit converting 400 V from the input dc link to an Output voltage range of 200 V to 450 V dc at 1650 W. The prototype achieves a peak efficiency of 95.7 %.
Ronnie Belmans - One of the best experts on this subject based on the ideXlab platform.
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model based generation of low distortion currents in grid coupled pwm inverters using an lcl Output Filter
IEEE Transactions on Power Electronics, 2006Co-Authors: B Bolsens, Johan Driesen, K De Brabandere, J Van Den Keybus, Ronnie BelmansAbstract:In this paper, a single phase inductance–capacitance– inductance (LCL) Output stage for grid coupled inverters is designed and built. An accurate model and observer of the Output Filter and the distorted grid voltage are implemented. The paper deals with the construction of a 14-state model, and the feedback control loop to obtain adequate closed loop response. Simulations indicate a good performance of the controller, with a total harmonic current distortion (THD) below 1%. Experimental results confirm simulations, and illustrate the correct operation of the Kalman observer to estimate the distorted grid voltage (THD 3%). The observer only uses the inverter current measurement as input. The Output Filter effectively reduces the pulsewidth modulation harmonics in the grid current.
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three phase observer based low distortion grid current controller using an lcl Output Filter
Power Electronics Specialists Conference, 2005Co-Authors: B Bolsens, Johan Driesen, K De Brabandere, J Van Den Keybus, Ronnie BelmansAbstract:In literature on shunt active power Filters and grid current controllers, much effort is done to achieve low current distortions. Some topologies incorporate only an inductor between utility grid and inverter, and this may not suffice to meet regulatory standards on harmonics emission, like IEEE 519 or IEC 61000-3-2 [T]. To reduce the effect of PWM harmonics, more complex Output Filters are used, such as LC or LCL topologies. These enhanced Output Filters allow lower switching frequencies. In this paper, a three-phase application is built and tested. After the hardware design of the Output stage for a prototype PWM inverter, the control loop is explained briefly. It consists of a Kalman observer to monitor the three-phase grid voltage (including distortion and unbalance), and the LCL Output stage. The 20-state observer vector is used for state feedback. To control the DC link voltage, a fast control loop is designed, for operation as an active front end (AFE), or `active rectifier', or to provide reactive power, and secondly, a slow controller is treated, which is useful for harmonic grid currents injection. Finally, many measurements show that this observer/controller operates very well (ITHD<1%), even under severely unbalanced three-phase voltage systems (VTHD=3%)
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three phase observer based low distortion grid current controller using an lcl Output Filter
Power Electronics Specialists Conference, 2005Co-Authors: B Bolsens, Johan Driesen, K De Brabandere, J Van Den Keybus, Ronnie BelmansAbstract:In literature on shunt active power Filters and grid current controllers, much effort is done to achieve low current distortions. Some topologies incorporate only an inductor between utility grid and inverter, and this may not suffice to meet regulatory standards on harmonics emission, like IEEE 519 or IEC 61000-3-2 [T]. To reduce the effect of PWM harmonics, more complex Output Filters are used, such as LC or LCL topologies. These enhanced Output Filters allow lower switching frequencies. In this paper, a three-phase application is built and tested. After the hardware design of the Output stage for a prototype PWM inverter, the control loop is explained briefly. It consists of a Kalman observer to monitor the three-phase grid voltage (including distortion and unbalance), and the LCL Output stage. The 20-state observer vector is used for state feedback. To control the DC link voltage, a fast control loop is designed, for operation as an active front end (AFE), or `active rectifier', or to provide reactive power, and secondly, a slow controller is treated, which is useful for harmonic grid currents injection. Finally, many measurements show that this observer/controller operates very well (ITHD<1%), even under severely unbalanced three-phase voltage systems (VTHD=3%)
Fariborz Musavi - One of the best experts on this subject based on the ideXlab platform.
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a zero voltage switching full bridge dc dc converter with capacitive Output Filter for plug in hybrid electric vehicle battery charging
IEEE Transactions on Power Electronics, 2013Co-Authors: Deepak Gautam, Wilson Eberle, Fariborz Musavi, William G. DunfordAbstract:In this paper, a novel zero-voltage switching full-bridge converter with trailing edge pulse width modulation and capacitive Output Filter is presented. The target application for this study is the second stage dc-dc converter in a two stage 1.65 kW on-board charger for a plug-in hybrid electric vehicle. For this application the design objective is to achieve high efficiency and low cost in order to minimize the charger size, charging time, and the amount and the cost of electricity drawn from the utility. A detailed converter operation analysis is presented along with simulation and experimental results. In comparison to a benchmark full-bridge with an LC Output Filter, the proposed converter reduces the reverse recovery losses in the secondary rectifier diodes, therefore, enabling a converter switching frequency of 100 kHz. Experimental results are presented for a prototype unit converting 400 V from the input dc link to an Output voltage range of 200-450 V dc at 1650 W. The prototype achieves a peak efficiency of 95.7%.
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A zero voltage switching full-bridge DC-DC converter with capacitive Output Filter for a plug-in-hybrid electric vehicle battery charger
Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, 2012Co-Authors: Deepak Gautam, Murray Edington, Wilson Eberle, Fariborz Musavi, William G. DunfordAbstract:In this paper, a novel zero voltage switching full-bridge converter with trailing edge pulse width modulation and capacitive Output Filter is presented. The target application for this work is the second stage dc-dc converter in a two stage 1.65 kW on-board charger for a plug-in hybrid electric vehicle (PHEV). For this application the design objective is to achieve high efficiency and lower cost in order to minimize the charger size, charging time and the amount and cost of electricity drawn from the utility. A detailed converter operation analysis is presented along with simulation and experimental results. In comparison to a benchmark full-bridge with LC Output Filter, the proposed converter reduces the reverse recovery losses in the secondary rectifier diodes, therefore enabling a converter switching frequency of 100 kHz. Experimental results are presented for a prototype unit converting 400 V from the input dc link to an Output voltage range of 200 V to 450 V dc at 1650 W. The prototype achieves a peak efficiency of 95.7 %.
