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学者姓名：江彦伟
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Abstract ：
This article proposed an autonomous wireless power transfer system with misalignment tolerance and improved control degree of freedom based on detuning control for battery charging, in which the outputs can be regulated continuously and smoothly without additional dc-dc converters while maintaining soft-switching or zero-phase-angle operation of the inverter. Theoretical analysis shows that constant current (CC) or constant voltage (CV) independent of coupling coefficient and load can be achieved without information exchange between transmitter and receiver, which eliminates wireless communication. Furthermore, when the detuning ratio is controlled to be constant, a transfer efficiency insensitive to the variation of the coupling coefficient can be obtained. A prototype with a 6-A charging current and a 36-V charging voltage is built to support the feasibility of the proposed method. Experimental results demonstrate that within the coupling coefficient range of 0.283-0.456, CC and CV with transfer efficiency greater than 91.5% can be achieved.
Keyword ：
Autonomous system Autonomous system battery charging battery charging detuning control detuning control misalignment tolerance misalignment tolerance wireless power transfer (WPT) wireless power transfer (WPT)
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| GB/T 7714 | Wu, Lihao , Zhang, Bo , Jiang, Yanwei . A Misalignment-Tolerant Autonomous Wireless Power Transfer System for Battery Charging Based on Detuning Control [J]. | IEEE TRANSACTIONS ON POWER ELECTRONICS , 2024 , 39 (3) : 3851-3863 . |
| MLA | Wu, Lihao 等. "A Misalignment-Tolerant Autonomous Wireless Power Transfer System for Battery Charging Based on Detuning Control" . | IEEE TRANSACTIONS ON POWER ELECTRONICS 39 . 3 (2024) : 3851-3863 . |
| APA | Wu, Lihao , Zhang, Bo , Jiang, Yanwei . A Misalignment-Tolerant Autonomous Wireless Power Transfer System for Battery Charging Based on Detuning Control . | IEEE TRANSACTIONS ON POWER ELECTRONICS , 2024 , 39 (3) , 3851-3863 . |
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Abstract ：
在无线电能传输(wireless power transfer,WPT)系统中,偏移是不可避免的,偏移会引起系统参数的变化从而影响系统的传输性能.基于S-S和P-S补偿拓扑,提出一种具有抗偏移特性的双耦合 SP-S 补偿的紧凑型 WPT 系统.该系统采用两个同轴布置、相互解耦的圆角方形线圈作为能量的发射线圈,其与单一方形接收线圈均有耦合,提升了 X方向和 Y 方向的抗偏移容忍度.通过谐振参数配置使接收线圈在偏移的过程中,一个线圈回路的输出增加,另一个线圈回路输出减少,从而使系统输出随接收线圈位置偏移波动平缓.提出方形解耦线圈结构参数的设计方法,并分析发射端并联补偿电容对输出抗偏移性能的影响.最后,搭建实验平台验证该方法的有效性与系统的抗偏移能力.
Keyword ：
双耦合 双耦合 抗偏移 抗偏移 无线电能传输 无线电能传输 解耦线圈 解耦线圈
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| GB/T 7714 | 谢文燕 , 陈为 , 陈庆彬 et al. 双耦合SP-S补偿紧凑型抗偏移WPT系统 [J]. | 中国电机工程学报 , 2024 , 44 (2) : 714-724,中插24 . |
| MLA | 谢文燕 et al. "双耦合SP-S补偿紧凑型抗偏移WPT系统" . | 中国电机工程学报 44 . 2 (2024) : 714-724,中插24 . |
| APA | 谢文燕 , 陈为 , 陈庆彬 , 江彦伟 . 双耦合SP-S补偿紧凑型抗偏移WPT系统 . | 中国电机工程学报 , 2024 , 44 (2) , 714-724,中插24 . |
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Pad misalignment is almost inevitable in most wireless power transfer (WPT) systems, which leads to system performance degradation due to the variation of system parameters. Based on S-S and P-S compensation topology, this paper proposes a compact WPT system with dual-coupled SP-S compensation with anti-offset characteristics. Two coaxially arranged, mutually decoupled, rounded square coils are used as the energy transmitting coils, which are coupled with a single square receiving coil to improve the anti-offset tolerance in the X and Y directions. In the process of receiving coil offset, the output of one transmitting coil loop is increased and the output of the other coil loop is reduced by resonance parameter configuration, so that the system output fluctuates gently with the offset of the receiving coil. The design method of the structural parameters of the square decoupling coil is put forward and the influence of shunt compensation capacitance on the offset resistance of output is also analyzed. An experimental platform is built to verify the feasibility of the proposed method and the anti-misalignment performance of the proposed WPT system. ©2024 Chin.Soc.for Elec.Eng.
Keyword ：
Alignment Alignment Energy transfer Energy transfer Inductive power transmission Inductive power transmission
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| GB/T 7714 | Xie, Wenyan , Chen, Wei , Chen, Qingbin et al. Compact Anti-offset WPT System With Dual-coupled SP-S Compensation [J]. | Proceedings of the Chinese Society of Electrical Engineering , 2024 , 44 (2) : 714-724 . |
| MLA | Xie, Wenyan et al. "Compact Anti-offset WPT System With Dual-coupled SP-S Compensation" . | Proceedings of the Chinese Society of Electrical Engineering 44 . 2 (2024) : 714-724 . |
| APA | Xie, Wenyan , Chen, Wei , Chen, Qingbin , Jiang, Yanwei . Compact Anti-offset WPT System With Dual-coupled SP-S Compensation . | Proceedings of the Chinese Society of Electrical Engineering , 2024 , 44 (2) , 714-724 . |
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Abstract ：
电场耦合无线电能传输ECPT(electric-field coupled wireless power transfer)系统具有耦合极板轻便、跨金属传能、涡流损耗可忽略等优点.其中,宇称-时间对称电场耦合无线电能传输PT-ECPT(parity-time symmetric ECPT)系统具有在耦合极板间距发生变化时保持恒定输出的特性,具有广泛的应用前景.基于此,研究了PT-ECPT系统的电场辐射分布.理论分析、仿真及实验结果表明,在强耦合区域且输出功率相同的情况下,PT-ECPT系统的电场分布在耦合系数较小时比传统的谐振式ECPT系统更为集中,使得PT-ECPT在小耦合系数时安全性更高.
Keyword ：
宇称-时间对称 宇称-时间对称 无线电能传输系统 无线电能传输系统 电场分布 电场分布 电场泄露 电场泄露 电场耦合 电场耦合
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| GB/T 7714 | 郑小瑶 , 江彦伟 , 疏许健 et al. 宇称-时间对称电场耦合无线电能传输系统电场分布特性研究 [J]. | 电源学报 , 2024 , 22 (5) : 60-66 . |
| MLA | 郑小瑶 et al. "宇称-时间对称电场耦合无线电能传输系统电场分布特性研究" . | 电源学报 22 . 5 (2024) : 60-66 . |
| APA | 郑小瑶 , 江彦伟 , 疏许健 , 周阳 , 赵小光 . 宇称-时间对称电场耦合无线电能传输系统电场分布特性研究 . | 电源学报 , 2024 , 22 (5) , 60-66 . |
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This paper proposes a distance-independent wireless charging system that achieves constant current (CC) and constant voltage (CV) output through utilization of a reconfigurable topology, capable of seamlessly switching between a two-coil and a three-coil configuration. In order to enhance output adjustability and improve the efficiency of the charging process, this system combines the advantages of fractional-order and integer-order resonant circuits. In the two-coil configuration, the output of the inverter on the transmitter side is modulated as that of a fractional-order capacitor. By analyzing frequency characteristics of the fractional-order circuit, a control strategy of variable fractional order is introduced to achieve CC output against variations of transfer distance based on a mutual inductance recognition method. After transitioning to the three-coil configuration, the system inherently achieves a CV output by operating the inverter at a fixed frequency and forming an integer-order resonant circuit. In addition, in both mentioned configurations, the full-bridge (FB) mode and half-bridge (HB) mode of the inverter are utilized to minimize switching losses and broaden the range of soft-switching operation, catering to various load conditions. Finally, an experimental prototype is built to achieve CC and CV output within a wide charging range.
Keyword ：
Constant current/voltage (CC/CV) charging Constant current/voltage (CC/CV) charging hybrid topology hybrid topology reconfigurable reconfigurable wireless power transfer (WPT) wireless power transfer (WPT)
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| GB/T 7714 | Rong, Chao , Zhang, Bo , Jiang, Yanwei et al. A Distance-Independent Wireless Charging System With Hybrid Topology and Control [J]. | PROCEEDINGS OF 2024 IEEE WIRELESS POWER TECHNOLOGY CONFERENCE AND EXPO, WPTCE , 2024 : 821-824 . |
| MLA | Rong, Chao et al. "A Distance-Independent Wireless Charging System With Hybrid Topology and Control" . | PROCEEDINGS OF 2024 IEEE WIRELESS POWER TECHNOLOGY CONFERENCE AND EXPO, WPTCE (2024) : 821-824 . |
| APA | Rong, Chao , Zhang, Bo , Jiang, Yanwei , Zhou, Jiali . A Distance-Independent Wireless Charging System With Hybrid Topology and Control . | PROCEEDINGS OF 2024 IEEE WIRELESS POWER TECHNOLOGY CONFERENCE AND EXPO, WPTCE , 2024 , 821-824 . |
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In wireless power transfer (WPT) systems, it is well known that the series-parallel (SP)-compensated topology is preferable for large load systems, like biomedical implants and consumer electronics, etc. However, it is a major challenge for practical SP-compensated WPT applications to obtain efficient and stable power transfer characteristics under the variations of coupling coefficient and resonant frequency. Therefore, based on fractional-order (FO) circuit theory, this paper proposes an SP-compensated FOWPT system with coupling independence and detuning insensitivity. Experimental results show that stable output power is maintained with a constant transfer efficiency in a wide load range, and when the resonant frequency of the receiver is detuned +/- 5%, the fluctuations of output power and transfer efficiency are less than 1%. The experiment validates the effectiveness of the proposed system.
Keyword ：
Coupling independence Coupling independence detuning insensitivity detuning insensitivity fractional-order wireless power transfer (FOWPT) fractional-order wireless power transfer (FOWPT) series- parallel (SP) series- parallel (SP)
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| GB/T 7714 | Shu, Xujian , Wu, Guoxin , Zhang, Xueqi et al. A Series-Parallel-Compensated Fractional-order Wireless Power Transfer System With Coupling Independence and Detuning Insensitivity [J]. | IEICE ELECTRONICS EXPRESS , 2024 , 21 (17) . |
| MLA | Shu, Xujian et al. "A Series-Parallel-Compensated Fractional-order Wireless Power Transfer System With Coupling Independence and Detuning Insensitivity" . | IEICE ELECTRONICS EXPRESS 21 . 17 (2024) . |
| APA | Shu, Xujian , Wu, Guoxin , Zhang, Xueqi , Jiang, Yanwei , Zhang, Bo . A Series-Parallel-Compensated Fractional-order Wireless Power Transfer System With Coupling Independence and Detuning Insensitivity . | IEICE ELECTRONICS EXPRESS , 2024 , 21 (17) . |
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A capacitive wireless power transfer (CPT) system based on parity-time (PT) symmetry achieves constant output characteristics under distance variation without additionally increasing the system complexity of the control strategy, where the concept of PT symmetry is derived from quantum mechanics, and the systems satisfying PT symmetry are invariant under space and time inversion. However, the exact PT-symmetric region (i.e., strong coupling region) of the general system is limited by the symmetry of the structure and parameters. To overcome this limitation, a novel generalized parity-time (GPT)-symmetric CPT system is proposed in this article. According to the equivalent circuit method, the circuit model of the proposed system is built, and the transfer characteristics are analyzed. Furthermore, a prototype is implemented to verify the feasibility of the proposed CPT system. The results show that the PT-symmetric region is extended by 169.23% compared with the traditional PT-based CPT system, and a constant output power of 21.5 W is transferred with a constant transfer efficiency of 90%.
Keyword ：
capacitive wireless power transfer (CPT) capacitive wireless power transfer (CPT) distance extension distance extension generalized parity-time (GPT) symmetry generalized parity-time (GPT) symmetry
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| GB/T 7714 | Shu, Xujian , Ou, Riming , Wu, Guoxin et al. Extended-Distance Capacitive Wireless Power Transfer System Based on Generalized Parity-Time Symmetry [J]. | ELECTRONICS , 2024 , 13 (23) . |
| MLA | Shu, Xujian et al. "Extended-Distance Capacitive Wireless Power Transfer System Based on Generalized Parity-Time Symmetry" . | ELECTRONICS 13 . 23 (2024) . |
| APA | Shu, Xujian , Ou, Riming , Wu, Guoxin , Yang, Jingjing , Jiang, Yanwei . Extended-Distance Capacitive Wireless Power Transfer System Based on Generalized Parity-Time Symmetry . | ELECTRONICS , 2024 , 13 (23) . |
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Capacitive power transfer (CPT) technique uses coupled metal plates for energy transmission, which has the advantages of negligible eddy-current loss and low weight. To achieve efficient power transfer, the CPT system often adopts circuit resonance and impedance compensation, which are generally realized by integer-order components, such as inductors and capacitors. However, it remains a fundamental challenge to create a CPT system whose transfer efficiency and output power are robust against the variation of resonant frequency and the coupled plates' relative position. Therefore, this article proposes a robust fractional-order autonomous CPT system containing a fractional-order inductor. Theoretical analysis shows that the transfer efficiency and output power of the proposed fractional-order CPT system are inherently robust not only to the variation of the coupled plates' relative position but also to the resonant frequency. In contrast, the transfer efficiency and output power of traditional integer-order CPT systems are sensitive to the resonant frequency. The available experimental results verify the effectiveness of the proposed system.
Keyword ：
Autonomous Autonomous capacitive power transfer (CPT) capacitive power transfer (CPT) Capacitors Capacitors Couplings Couplings fractional order fractional order Inductors Inductors Receivers Receivers Resonant frequency Resonant frequency RLC circuits RLC circuits robust transmission robust transmission Transmitters Transmitters
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| GB/T 7714 | Jiang, Yanwei , Zhou, Yang , Zhang, Bo et al. A Robust Capacitive Power Transfer System via Fractional-Order Autonomous Circuit [J]. | IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS , 2024 , 12 (3) : 3258-3267 . |
| MLA | Jiang, Yanwei et al. "A Robust Capacitive Power Transfer System via Fractional-Order Autonomous Circuit" . | IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS 12 . 3 (2024) : 3258-3267 . |
| APA | Jiang, Yanwei , Zhou, Yang , Zhang, Bo , Chen, Wei , Chen, Qingbin , Shu, Xujian . A Robust Capacitive Power Transfer System via Fractional-Order Autonomous Circuit . | IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS , 2024 , 12 (3) , 3258-3267 . |
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Wireless power transfer (WPT) is an emerging technology that enables the wireless transfer of electrical energy from power supplies to electrical equipment. It has been widely used in electric vehicles, mobile phones, household appliances, medical devices, and other fields. However, the frequency splitting and bifurcation phenomena existing in WPT systems are the fundamental obstacles and challenges that affect the effective operation of WPT systems. In this paper, a method based on the fractional-order circuit is proposed to simultaneously suppress the frequency splitting and bifurcation phenomena by changing the order of fractional-order capacitor. By replacing the compensation capacitor in the transmitter of the traditional WPT system with a fractional-order capacitor, a fractional-order WPT system is formed. Then, using fractional calculus and circuit theory, the mathematical model of the proposed WPT system containing a fractional-order capacitor is established, and the frequency splitting and bifurcation phenomena are analyzed. The theoretical results show that the frequency splitting and bifurcation phenomena are suppressed only by adjusting the order of fractional-order capacitor, and the output power of the original resonant frequency is improved. Finally, the experimental prototype is implemented to validate the theoretical results. In this paper, a method based on the fractional-order circuit is proposed to simultaneously suppress the frequency splitting and bifurcation phenomena by changing the order of fractional-order capacitor. The theoretical results show that the frequency splitting and bifurcation phenomena are suppressed only by adjusting the order of fractional-order capacitor, and the output power of the original resonant frequency is improved. Finally, the experimental prototype is implemented to validate the theoretical results.image
Keyword ：
fractional-order fractional-order frequency bifurcation frequency bifurcation frequency splitting frequency splitting wireless power transfer wireless power transfer
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| GB/T 7714 | Shu, Xujian , Zhang, Xueqi , Jiang, Yanwei et al. A Fractional-Order Method of Frequency Splitting and Bifurcation Suppression for Wireless Power Transfer Systems [J]. | INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS , 2024 , 52 (12) : 6468-6478 . |
| MLA | Shu, Xujian et al. "A Fractional-Order Method of Frequency Splitting and Bifurcation Suppression for Wireless Power Transfer Systems" . | INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS 52 . 12 (2024) : 6468-6478 . |
| APA | Shu, Xujian , Zhang, Xueqi , Jiang, Yanwei , Zhang, Bo . A Fractional-Order Method of Frequency Splitting and Bifurcation Suppression for Wireless Power Transfer Systems . | INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS , 2024 , 52 (12) , 6468-6478 . |
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In this paper, using dual-frequency modulation (DFM) and phase synchronization method (PSM), a flexible and controllable wireless power transfer (WPT) system with soft switching based on parity-time (PT) symmetry is proposed for kitchen appliances. Here, the system outputs can be regulated by configuring the number ratio of two modulation pulses with different frequencies, without the need for extra DC-DC converters or changing the duty cycle of the inverter. Moreover, a control method for generating and arranging the hybrid frequencies pulse sequence is proposed based on PSM to satisfy the condition of PT symmetry. Theoretical analysis indicates that a controllable output power insensitive to the coupling coefficient can be acquired only by relying on a single-stage inverter while maintaining soft-switching or zero-voltage switching (ZVS) operation, thereby reducing power losses and improving system cost-effectiveness and integration. Furthermore, dual-side communication can be eliminated. The results of the experiment confirm that a controllable stable output power with a constant coil-coil efficiency of 95.8% and a peak DC-to-load efficiency of 93.8% can be maintained within a lateral tolerance range of 0-14 cm.
Keyword ：
Coils Coils controllable output controllable output Control systems Control systems Couplings Couplings Dual-frequency modulation (DFM) Dual-frequency modulation (DFM) Heating systems Heating systems Inverters Inverters parity-time (PT) symmetry parity-time (PT) symmetry Power generation Power generation Receivers Receivers Resistors Resistors soft switching soft switching Transmitters Transmitters Zero voltage switching Zero voltage switching
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| GB/T 7714 | Wu, Lihao , Zhang, Bo , Jiang, Yanwei . Output-Power-Controllable Parity-Time-Symmetric Wireless Power Transfer System With Soft Switching for Kitchen Appliances [J]. | IEEE TRANSACTIONS ON CONSUMER ELECTRONICS , 2024 , 70 (4) : 6630-6640 . |
| MLA | Wu, Lihao et al. "Output-Power-Controllable Parity-Time-Symmetric Wireless Power Transfer System With Soft Switching for Kitchen Appliances" . | IEEE TRANSACTIONS ON CONSUMER ELECTRONICS 70 . 4 (2024) : 6630-6640 . |
| APA | Wu, Lihao , Zhang, Bo , Jiang, Yanwei . Output-Power-Controllable Parity-Time-Symmetric Wireless Power Transfer System With Soft Switching for Kitchen Appliances . | IEEE TRANSACTIONS ON CONSUMER ELECTRONICS , 2024 , 70 (4) , 6630-6640 . |
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