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学者姓名:毛行奎
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Three-port dc-dc converters (TPCs) integrate renewable energy systems, energy storage systems, and loads, which have the characteristics of high integration and high reliability. This article proposes a high-gain TPC with soft-switching for renewable energy system applications. In various operating modes of the proposed converter, all switches can achieve zero voltage switching turn-ON and all diodes can achieve zero current switching turn-OFF, which can effectively improve the efficiency of the converter. In addition, the coupled inductor achieves zero dc bias, which can reduce the magnetic size and core loss. The working principle, performance analysis, efficiency analysis, parameter design, energy management and control and of the proposed converter are presented. A 300-W experimental prototype with a 45-V photovoltaic voltage, a 90-V battery voltage, and a 380-V load voltage is built to verify the feasibility and correctness of the converter.
Keyword :
Batteries Batteries Capacitors Capacitors Coupled inductor Coupled inductor DC-DC power converters DC-DC power converters high gain high gain High-voltage techniques High-voltage techniques Inductors Inductors Renewable energy sources Renewable energy sources Switches Switches three-port converter three-port converter Topology Topology Voltage Voltage zero current switching (ZCS) zero current switching (ZCS) Zero voltage switching Zero voltage switching zero voltage switching (ZVS) zero voltage switching (ZVS)
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GB/T 7714 | Zhou, Mingzhu , Liu, Chao , Xie, Ronghuan et al. A High-Gain Three-Port DC-DC Converter With Soft-Switching for Renewable Energy System Applications [J]. | IEEE TRANSACTIONS ON POWER ELECTRONICS , 2025 , 40 (1) : 1508-1518 . |
MLA | Zhou, Mingzhu et al. "A High-Gain Three-Port DC-DC Converter With Soft-Switching for Renewable Energy System Applications" . | IEEE TRANSACTIONS ON POWER ELECTRONICS 40 . 1 (2025) : 1508-1518 . |
APA | Zhou, Mingzhu , Liu, Chao , Xie, Ronghuan , Zhuang, Yizhan , Mao, Xingkui , Zhang, Yiming . A High-Gain Three-Port DC-DC Converter With Soft-Switching for Renewable Energy System Applications . | IEEE TRANSACTIONS ON POWER ELECTRONICS , 2025 , 40 (1) , 1508-1518 . |
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A novel passive current sharing method for a multiphase wireless power transfer (WPT) system is proposed in this letter. For an N-phase inverter, there would be N compensating inductors in the inductor-capacitor-capacitor series (LCC-S) compensated WPT system. The proposed scheme introduces N external parallel resonant branches coupled with these N compensating inductors. In this way, an extremely large impedance is introduced in each loop of the circulating currents so as to balance the phase currents. No additional passive components with the rated power level are added to the power transfer channel. The proposed method employs two coupled inductors, which is easy to realize. Two new integrated structures for coupled inductors are introduced. The mathematical model and the current sharing principle of the proposed method are analyzed in detail. A 1.6-kW LCC-S compensated WPT experimental prototype with a four-phase inverter and the experimental results verify the effectiveness of the proposed current sharing method.
Keyword :
Coupled Coupled Couplings Couplings current sharing current sharing Inductance Inductance Inductors Inductors Inverters Inverters Legged locomotion Legged locomotion paralleled paralleled Prototypes Prototypes resonant branch resonant branch Voltage Voltage wireless power transfer (WPT) wireless power transfer (WPT)
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GB/T 7714 | Liu, Rongbin , Xie, Ronghuan , Chen, Xiaoying et al. Current Sharing for a Multiphase Inverter Based on Coupled External Parallel Resonant Branches for Wireless Power Transfer System [J]. | IEEE TRANSACTIONS ON POWER ELECTRONICS , 2025 , 40 (1) : 71-75 . |
MLA | Liu, Rongbin et al. "Current Sharing for a Multiphase Inverter Based on Coupled External Parallel Resonant Branches for Wireless Power Transfer System" . | IEEE TRANSACTIONS ON POWER ELECTRONICS 40 . 1 (2025) : 71-75 . |
APA | Liu, Rongbin , Xie, Ronghuan , Chen, Xiaoying , Mao, Xingkui , Li, Zhongqi , Zhang, Yiming . Current Sharing for a Multiphase Inverter Based on Coupled External Parallel Resonant Branches for Wireless Power Transfer System . | IEEE TRANSACTIONS ON POWER ELECTRONICS , 2025 , 40 (1) , 71-75 . |
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To improve the efficiency of isolated bidirectional dc-dc converters for off-board dc charging over a wide voltage gain, such as dual active bridge (DAB) and inductor-inductor-capacitor (LLC) resonant converters, this article proposes an approach to reconfiguring transformer turn ratio using multibridge-legs (RTTMBL). The proposed RTTMBL approach reconfigures a large number of turn-ratio combinations by adding a few auxiliary components. The different combinations of turn ratio are selected for different operating conditions to match the primary and secondary voltages of the converter, obtaining a lower inductor rms current and a wider zero-voltage switching (ZVS) range, thus reducing conduction and switching loss. This article first analyzes the principle of the proposed approach and describes the application of RTTMBL on DAB (DAB-RTTMBL) converter. Second, the DAB-RTTMBL is compared with the existing solutions regarding inductor rms current and ZVS range. Finally, a DAB-RTTMBL converter prototype with a power of 1kW and a voltage gain varying from 0.4 to 2.5 is built to verify the effectiveness of RTTMBL, which has six turn-ratio combinations. The results demonstrate the great potential of the proposed RTTMBL for wide-voltage-gain applications.
Keyword :
Batteries Batteries Bridge circuits Bridge circuits Dual active bridge (DAB) Dual active bridge (DAB) Inductors Inductors Legged locomotion Legged locomotion LLC LLC reconfigurable transformer turns ratio reconfigurable transformer turns ratio Resonant converters Resonant converters Switches Switches Topology Topology Transformers Transformers wide voltage range wide voltage range Windings Windings Zero voltage switching Zero voltage switching
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GB/T 7714 | Xie, Hongbiao , Zhang, Tao , Rao, Peiyao et al. An Approach to Reconfiguring Transformer Turn Ratio Using Multibridge-Legs for Wide-Voltage-Gain DAB and LLC Converters [J]. | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2025 . |
MLA | Xie, Hongbiao et al. "An Approach to Reconfiguring Transformer Turn Ratio Using Multibridge-Legs for Wide-Voltage-Gain DAB and LLC Converters" . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS (2025) . |
APA | Xie, Hongbiao , Zhang, Tao , Rao, Peiyao , Xie, Ronghuan , Chen, Xiaoying , Mao, Xingkui et al. An Approach to Reconfiguring Transformer Turn Ratio Using Multibridge-Legs for Wide-Voltage-Gain DAB and LLC Converters . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2025 . |
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Dynamic wireless power transmission (DWPT) is a promising technology as it reduces the battery capacity carried by automated guided vehicles and lowers its cost and weight. However, there are large mutual inductance and power fluctuation in the dynamic charging process. In order to solve this problem, this letter proposes a low-cost and low-fluctuation dual-receiver magnetic coupler, which is connected in parallel by two half-bridge rectifiers. The transmitter employs an I-type solenoid coil to enhance the magnetic field and improve the coupling. The optimized design of the coupler structure enables the system to have smooth mutual inductance fluctuation by switching the two receiving coils with each other during the dynamic charging process. The experimental results show that the measured equivalent mutual inductance fluctuation is 3.6%, which verifies the feasibility of the optimized design of the magnetic coupling structure and the effectiveness of the proposed DWPT system.
Keyword :
Automated guided vehicles (AGVs) Automated guided vehicles (AGVs) dual receiver (Rx) dual receiver (Rx) dynamic wireless power transfer (DWPT) dynamic wireless power transfer (DWPT) smooth mutual inductance fluctuation smooth mutual inductance fluctuation
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GB/T 7714 | Zhang, Yiming , Zhou, Hangyan , Xie, Ronghuan et al. A Smooth-Output Dynamic Wireless Charging System for Automated Guided Vehicles With Dual-Receiver Magnetic Coupler [J]. | IEEE TRANSACTIONS ON POWER ELECTRONICS , 2025 , 40 (4) : 4711-4715 . |
MLA | Zhang, Yiming et al. "A Smooth-Output Dynamic Wireless Charging System for Automated Guided Vehicles With Dual-Receiver Magnetic Coupler" . | IEEE TRANSACTIONS ON POWER ELECTRONICS 40 . 4 (2025) : 4711-4715 . |
APA | Zhang, Yiming , Zhou, Hangyan , Xie, Ronghuan , Mao, Xingkui , Chen, Xiaoying , Li, Zhongqi . A Smooth-Output Dynamic Wireless Charging System for Automated Guided Vehicles With Dual-Receiver Magnetic Coupler . | IEEE TRANSACTIONS ON POWER ELECTRONICS , 2025 , 40 (4) , 4711-4715 . |
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There are constant-current (CC) and constant-voltage (CV) charging or multistage CC charging with different CC or CV levels for different electric vehicles. Accommodating multiple output levels is challenging for a wireless power transfer (WPT) system. In addition, maintaining high efficiency and output stability during misalignment is required for practical applications. To meet the above requirements, dual-channel WPT systems with reconfigurable series-parallel switchers (RSPS) are proposed in this article. With the RSPS connected to both input and output ports of two power channels, the range of CV or CC output can be lifted to fourfold. The proposed systems are compatible with full-bridge and half-bridge switching that provides more output levels. Strong misalignment tolerance is achieved by the hybrid topologies. An experimental prototype is established to verify the proposed WPT systems. The results have revealed that the proposed systems can provide a wide CV or CC output range and maintain output stability with efficiency up to 93.3% under a misalignment distance from 0 to 100 mm.
Keyword :
Coils Coils Constant current (CC) Constant current (CC) constant-voltage (CV) constant-voltage (CV) hybrid topology hybrid topology Inductance Inductance inductive power transfer (IPT) inductive power transfer (IPT) Inverters Inverters misalignment tolerance misalignment tolerance Receivers Receivers Switches Switches Topology Topology Transformers Transformers Voltage Voltage Voltage control Voltage control wide-range output wide-range output Wireless power transfer Wireless power transfer wireless power transfer (WPT) wireless power transfer (WPT)
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GB/T 7714 | Zhang, Yiming , Zhou, Yicheng , Zheng, Yingyao et al. Dual-Channel Wireless Power Transfer Systems With Reconfigurable Series-Parallel Switchers on Both Input and Output Ports for Wide Constant-Voltage or Constant-Current Range and Misalignment Tolerance [J]. | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2025 . |
MLA | Zhang, Yiming et al. "Dual-Channel Wireless Power Transfer Systems With Reconfigurable Series-Parallel Switchers on Both Input and Output Ports for Wide Constant-Voltage or Constant-Current Range and Misalignment Tolerance" . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS (2025) . |
APA | Zhang, Yiming , Zhou, Yicheng , Zheng, Yingyao , Xie, Ronghuan , Chen, Xiaoying , Mao, Xingkui . Dual-Channel Wireless Power Transfer Systems With Reconfigurable Series-Parallel Switchers on Both Input and Output Ports for Wide Constant-Voltage or Constant-Current Range and Misalignment Tolerance . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2025 . |
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A common and urgent problem in electric vehicle (EV) wireless charging technology is the accidental entry of metal objects (MOs) into the charging area where there is no direct physical contact. Eddy currents can be induced in the MOs, generating a large amount of heat and potentially leading to serious consequences such as fire. The current commercially applied MO detection (MOD) technology has the problems of low detection sensitivity, affecting the power transmission magnetic field, and the existence of blind zones. In view of these shortcomings, a MOD system for wireless charging of EVs is proposed in this article. Long strip detection coils are designed and placed above the transmitter coil. Each strip detection coil is composed of 16 unipolar coils having alternating polarities, which can realize decoupling between the detection coil and the transmitter coil and eliminate the interference to the magnetic field of the wireless power transmission system. A third-order Sallen-Key high pass filter and a proportional amplifier circuit are used to improve the sensitivity and accuracy of MOD. Finally, an experimental platform of MOD for EV wireless charging is built, and the proposed system can detect the existence of MOs sensitively and accurately at the location where they may exist.
Keyword :
Coils Coils Detection coil Detection coil electric vehicle (EV) electric vehicle (EV) Electrification Electrification inductance change inductance change metal object detection (MOD) metal object detection (MOD) Metals Metals Strips Strips Transportation Transportation Wireless communication Wireless communication wireless power transfer (WPT) wireless power transfer (WPT) Wireless sensor networks Wireless sensor networks
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GB/T 7714 | Wang, Hui , Zheng, Yingyao , Zhou, Yicheng et al. Blind-Zone-Free Metal Object Detection System for Wireless EV Charging System Employing Strip Multipolar Detection Coils [J]. | IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION , 2025 , 11 (1) : 4420-4428 . |
MLA | Wang, Hui et al. "Blind-Zone-Free Metal Object Detection System for Wireless EV Charging System Employing Strip Multipolar Detection Coils" . | IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION 11 . 1 (2025) : 4420-4428 . |
APA | Wang, Hui , Zheng, Yingyao , Zhou, Yicheng , Wu, Yuanchao , Pan, Wenbin , Shen, Zhiwei et al. Blind-Zone-Free Metal Object Detection System for Wireless EV Charging System Employing Strip Multipolar Detection Coils . | IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION , 2025 , 11 (1) , 4420-4428 . |
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In the medium- and high-capacity power applications, typically multiple switches connected in series and parallel are used in power electronic converters to handle high voltages and currents. Powering the driving circuits and auxiliary units with high insulation requirements is challenging. This article proposes a modular multioutput wireless power transfer system with constant-current (CC) output characteristics for auxiliary power supply. Compared with conventional solutions, there is no need for complex control circuits and much magnetic material. The dual-frequency topology with CC outputs is derived by applying the analytical method that used to obtain the dual-frequency topology with constant-voltage (CV) outputs. The conditions for the system to maintain zero phase angle at different frequencies are discussed. Lower output fluctuations than single-frequency multioutput systems and dual-frequency CV output systems are verified. A magnetic coupler with integrated compensation inductors is designed to eliminate the need for discrete inductors and improve the power density. An experimental prototype is built to verify the validity of the theory. The WPT system achieves an output current fluctuation of no more than 4.78%, a maximum system efficiency higher than 85%, and an output power of more than 10 W at a single port, which can well meet the requirements of auxiliary power supply.
Keyword :
Auxiliary power supply (APS) Auxiliary power supply (APS) Capacitors Capacitors Circuits Circuits Coils Coils constant-current (CC) constant-current (CC) dual frequency dual frequency Equivalent circuits Equivalent circuits Inductors Inductors Insulation Insulation modularity modularity Power supplies Power supplies Rectifiers Rectifiers Resonant frequency Resonant frequency Topology Topology wireless power transfer (WPT) wireless power transfer (WPT)
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GB/T 7714 | Pan, Wenxuan , Liu, Rongbin , Xie, Ronghuan et al. A Multi-Output Modular Wireless Power Transfer System With Constant-Current Characteristic [J]. | IEEE TRANSACTIONS ON POWER ELECTRONICS , 2025 , 40 (4) : 6272-6281 . |
MLA | Pan, Wenxuan et al. "A Multi-Output Modular Wireless Power Transfer System With Constant-Current Characteristic" . | IEEE TRANSACTIONS ON POWER ELECTRONICS 40 . 4 (2025) : 6272-6281 . |
APA | Pan, Wenxuan , Liu, Rongbin , Xie, Ronghuan , Zhuang, Yizhan , Mao, Xingkui , Zhang, Yiming . A Multi-Output Modular Wireless Power Transfer System With Constant-Current Characteristic . | IEEE TRANSACTIONS ON POWER ELECTRONICS , 2025 , 40 (4) , 6272-6281 . |
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With the development of electric vehicles (EVs), there are two rated voltage levels for lithium-ion batteries, namely 400 and 800 V. Given the interoperability performance of public wireless power transfer (WPT) facilities, EV WPT systems should efficiently transmit power for both battery options. In this letter, a method is proposed by combining the coupling structure with a reconfigurable inductor-capacitor-capacitor (LCC) compensation network to enable charging EVs with the nominal battery voltage (NBV) of 400 or 800 V at the same power level, while maintaining high efficiency. The secondary LCC compensation is reconfigured so that the equivalent compensating inductance is varied. The mathematical model is established. The downscaled experimental prototype achieves a dc-dc efficiency of 95.34 and 92.40% for the output voltages of 200 and 400 V at the power level of 1.5 kW, respectively. The feasibility of the proposed system has been verified under the condition of alignment and misalignment of two sets of coupling coils.
Keyword :
Batteries Batteries Coils Coils Control systems Control systems Couplings Couplings Electric vehicles (EVs) Electric vehicles (EVs) Electrons Electrons Inductance Inductance interoperability interoperability nominal battery voltage (NBV) nominal battery voltage (NBV) Prototypes Prototypes Switches Switches Topology Topology Wireless power transfer Wireless power transfer wireless power transfer (WPT) wireless power transfer (WPT)
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GB/T 7714 | Liu, Chao , Zhou, Mingzhu , Xie, Ronghuan et al. An Interoperable Receiver With Reconfigurable LCC Compensation for Wireless Charging of 400-and 800-V Batteries in Electric Vehicles [J]. | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2025 . |
MLA | Liu, Chao et al. "An Interoperable Receiver With Reconfigurable LCC Compensation for Wireless Charging of 400-and 800-V Batteries in Electric Vehicles" . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS (2025) . |
APA | Liu, Chao , Zhou, Mingzhu , Xie, Ronghuan , Chen, Xiaoying , Mao, Xingkui , Zhang, Yiming . An Interoperable Receiver With Reconfigurable LCC Compensation for Wireless Charging of 400-and 800-V Batteries in Electric Vehicles . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2025 . |
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A Y-source coupled inductor-based high voltage gain dc-dc converter with zero input current ripple (ZICR) is proposed in this article. ZICR is achieved by adding an auxiliary circuit which is composed of an inductor, a capacitor, and a coupled inductor in series. The presence of the capacitor results in an average zero current passing through the ZICR structure. Therefore, a small size magnetic core can be used to design the inductor, which can reduce the volume and copper loss of the magnetic components. In addition, a Y-source coupled inductor along with a voltage multiplier is used to achieve high voltage. The inherent passive clamp circuit effectively restricts the off-voltage spike and voltage stress across the switch. By utilizing capacitors to absorb the leakage energy, zero current switching (ZCS) turn-off of all diodes is achieved and mitigates the reverse-recovery issues of the converter. A 200 W 32-380 V 50 kHz experimental prototype is built to verify the feasibility of this converter. Within the output power range of 40-200 W, the efficiency of the prototype with the ZICR structure is higher than that without this structure. The maximum efficiency of the converter with the ZICR structure and without it are 95.9% and 95.6%, respectively.
Keyword :
DC-DC converter DC-DC converter high voltage gain high voltage gain Y-source coupled inductor Y-source coupled inductor zero input current ripple (ZICR) zero input current ripple (ZICR)
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GB/T 7714 | Xu, Yuzhen , Zhang, Yueling , Zhou, Mingzhu et al. Y-Source Coupled Inductor Based High Voltage Gain DC-DC Converter With Zero Input Current Ripple [J]. | IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS , 2025 , 13 (1) : 199-213 . |
MLA | Xu, Yuzhen et al. "Y-Source Coupled Inductor Based High Voltage Gain DC-DC Converter With Zero Input Current Ripple" . | IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS 13 . 1 (2025) : 199-213 . |
APA | Xu, Yuzhen , Zhang, Yueling , Zhou, Mingzhu , Xie, Ronghuan , Mao, Xingkui , Chen, Xiaoying et al. Y-Source Coupled Inductor Based High Voltage Gain DC-DC Converter With Zero Input Current Ripple . | IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS , 2025 , 13 (1) , 199-213 . |
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In wireless power transfer (WPT) systems for electric vehicles (EVs), interoperability and misalignment tolerance for different receiving charging terminals meet great demands. In this article, a hybrid topology with a vector synthesis strategy and highly integrated magnetic couplers are proposed to achieve misalignment tolerance and interoperability for unipolar (Q), bipolar (DD), and quadrupolar (QUA) coils over the X and Y misalignments. By adjusting the phase angles of the four half-bridge inverters under different misalignments, the output voltage fluctuation can be limited. The mathematical model of the proposed hybrid topology is established and the vector synthesis strategy is introduced. The magnetic couplers and the design principle are presented. A 2-kW prototype is built to verify the proposed system. The experimental results demonstrate that the output voltage fluctuation under misalignments is less than 3.1% for the Rx Q coil, 3.3% for the Rx DD coil, and 4.3% for the Rx QUA coil, and the peak efficiency is 89.3%.
Keyword :
Coils Coils Couplers Couplers Couplings Couplings Ferrites Ferrites Fluctuations Fluctuations Highly integrated magnetic couplers Highly integrated magnetic couplers hybrid topology hybrid topology Inductors Inductors interoperability interoperability Inverters Inverters misalignment tolerance misalignment tolerance Topology Topology Vectors Vectors vector synthesis strategy vector synthesis strategy wireless power transfer (WPT) wireless power transfer (WPT)
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GB/T 7714 | Zhang, Yiming , Huang, Zhongjin , Shen, Zhiwei et al. Interoperability and Misalignment Tolerance of Electric Vehicle Wireless Charging System Based on Multiple Self-Decoupled Transmitting Coils and Vector Synthesis Strategy [J]. | IEEE TRANSACTIONS ON POWER ELECTRONICS , 2025 , 40 (5) : 7512-7522 . |
MLA | Zhang, Yiming et al. "Interoperability and Misalignment Tolerance of Electric Vehicle Wireless Charging System Based on Multiple Self-Decoupled Transmitting Coils and Vector Synthesis Strategy" . | IEEE TRANSACTIONS ON POWER ELECTRONICS 40 . 5 (2025) : 7512-7522 . |
APA | Zhang, Yiming , Huang, Zhongjin , Shen, Zhiwei , Xie, Ronghuan , Chen, Xiaoying , Mao, Xingkui . Interoperability and Misalignment Tolerance of Electric Vehicle Wireless Charging System Based on Multiple Self-Decoupled Transmitting Coils and Vector Synthesis Strategy . | IEEE TRANSACTIONS ON POWER ELECTRONICS , 2025 , 40 (5) , 7512-7522 . |
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