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学者姓名：毛行奎
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Abstract ：
In industrial applications, multiple devices operate concurrently and require simultaneous power supply. Due to reliability requirements, isolated voltage sources with multiple independent outputs are preferred. This paper proposed a non-overlapping self-decoupling structure for wireless power transfer (WPT). The coil is divided into two parts that are positively and negatively coupled to other coils. The inductor-capacitor-capacitor series (LCC-S) topology is used to realize constant voltage (CV) outputs. A flowchart of the coupler design is given and an experimental prototype is constructed to verify the feasibility of the proposed system. The system can achieve CV outputs of 112 V, 93 V, and 83 V respectively, with a maximum variation rate of 1.05%. IEEE
Keyword ：
Coils Coils Constant voltage (CV) Constant voltage (CV) Couplers Couplers Inductance Inductance Inverters Inverters non-overlapping non-overlapping Receivers Receivers Rectifiers Rectifiers Single-input multi-output (SIMO) Single-input multi-output (SIMO) Voltage Voltage Wireless power transfer (WPT) Wireless power transfer (WPT)
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| GB/T 7714 | Pan, W. , Xie, R. , Zhuang, Y. et al. A Multi-Output Wireless Power Transfer System Based on Non-Overlapping Self-Decoupling Magnetic Couplers [J]. | IEEE Transactions on Magnetics , 2024 , 60 (9) : 1-1 . |
| MLA | Pan, W. et al. "A Multi-Output Wireless Power Transfer System Based on Non-Overlapping Self-Decoupling Magnetic Couplers" . | IEEE Transactions on Magnetics 60 . 9 (2024) : 1-1 . |
| APA | Pan, W. , Xie, R. , Zhuang, Y. , Mao, X. , Zhang, Y. . A Multi-Output Wireless Power Transfer System Based on Non-Overlapping Self-Decoupling Magnetic Couplers . | IEEE Transactions on Magnetics , 2024 , 60 (9) , 1-1 . |
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This paper proposes a unified approach to parameter design, aimed at achieving load-independent constant current (CC) and constant voltage (CV) outputs under zero phase angle (ZPA) conditions which can be used in most topologies. A systematic set of parameter design techniques has been developed to facilitate this goal. This approach offers high design flexibility, thereby allowing extensive adjustability across various system components. This approach has the advantage of producing multiple viable solutions for a given set of parameters, distinguishing it from other methods. To verify the theoretical analysis, a 500W LCC-S compensated wireless power transfer (WPT) system for battery charging applications was designed and manufactured. The system operates at two different frequencies enabling both CC output with ZPA and CV output with ZPA. Details of the hardware design and laboratory prototype are presented, complemented by experimental results. © 2024 IEEE.
Keyword ：
battery charging battery charging CC/CV charging CC/CV charging load-independent outputs load-independent outputs soft switching soft switching unity power factor unity power factor ZPA ZPA
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| GB/T 7714 | Lin, J. , Mao, X. , Zhang, Y. . Analysis and Design of an LCC-S Compensated Topology in Wireless Power Transfer System With Constant Current and Voltage for Battery Charging Applications [未知]. |
| MLA | Lin, J. et al. "Analysis and Design of an LCC-S Compensated Topology in Wireless Power Transfer System With Constant Current and Voltage for Battery Charging Applications" [未知]. |
| APA | Lin, J. , Mao, X. , Zhang, Y. . Analysis and Design of an LCC-S Compensated Topology in Wireless Power Transfer System With Constant Current and Voltage for Battery Charging Applications [未知]. |
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The rapid development of electric vehicles has put forward higher requirements for various technologies of electric vehicles. One of the key components is the battery, which serves as the power source for electric vehicles. A suitable charging system can improve the safety and efficiency of electric vehicle battery charging, as well as extend the battery's service life and endurance. In this paper, an EV wireless charging system is proposed by employing an integrated solution for an electric vehicle charging system. The system can switch between different charging modes to meet the charging needs in different situations, including wireless power transfer (WPT), onbard charger (OBC), and auxiliary power module (APM). Different modes have different working frequencies. The leakage compensation model is used on the vehicle charging side, high-voltage receiving side, and low-voltage receiving side, while LCC compensation is used on the wireless charging side to achieve the required voltage ratio. The mathematical model of the integration of the WPT, OBC, and APM systems is established and verified in simulation. © 2024 IEEE.
Keyword ：
APM APM different frequencies different frequencies leakage inductance resonance leakage inductance resonance magnetic integration magnetic integration OBC OBC shared shared WPT WPT
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| GB/T 7714 | Xu, W. , Wu, Y. , Xie, R. et al. An Integrated Structure of Wireless Power Transfer, Onboard Charger, and Auxiliary Power Module in Electric Vehicle Charging Systems [未知]. |
| MLA | Xu, W. et al. "An Integrated Structure of Wireless Power Transfer, Onboard Charger, and Auxiliary Power Module in Electric Vehicle Charging Systems" [未知]. |
| APA | Xu, W. , Wu, Y. , Xie, R. , Ouyang, H. , Zhuang, Y. , Mao, X. et al. An Integrated Structure of Wireless Power Transfer, Onboard Charger, and Auxiliary Power Module in Electric Vehicle Charging Systems [未知]. |
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近年来电动汽车发展迅速，而传统的有线充电方式不能满足自动化和便利性的要求。电动汽车无线充电技术因其便利性和安全性受到广泛的研究。无线充电系统中常见的线圈结构有单极型线圈、双极型线圈和田字形线圈，由于不同厂商的适配问题，要兼容这些线圈则需要设计一种新型的线圈来实现互操作性。该文提出了一种新型的相互解耦的四单极接收线圈结构，能实现与不同发射线圈之间的互操作性。通过在接收线圈内部添加解耦绕组以实现4个接收线圈之间的解耦，并且通过串联二极管整流器使得发射线圈和四单极接收线圈之间的等效总互感是发射线圈和4个单极线圈之间的互感绝对值的总和。搭建了一套实验样机，验证了该方案的有效性，所提出的四单极接收线圈可以兼容单极型和双极型线圈以及田字形线圈，实现对不同接收线圈的互操作性。
Keyword ：
互操作性 互操作性 兼容 兼容 单极型 单极型 双极型 双极型 无线电能传输 无线电能传输 田字形线圈 田字形线圈
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| GB/T 7714 | 张艺明 , 沈志伟 , 毛行奎 et al. 基于相互解耦四单极接收线圈的电动汽车无线充电系统的互操作性 [J]. | 电网技术 , 2024 , 48 (02) : 650-663 . |
| MLA | 张艺明 et al. "基于相互解耦四单极接收线圈的电动汽车无线充电系统的互操作性" . | 电网技术 48 . 02 (2024) : 650-663 . |
| APA | 张艺明 , 沈志伟 , 毛行奎 , 陈凯楠 , 赵争鸣 . 基于相互解耦四单极接收线圈的电动汽车无线充电系统的互操作性 . | 电网技术 , 2024 , 48 (02) , 650-663 . |
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针对目前无线电能传输教学实训平台理论教学与实训脱节，使得学生对无线电能传输运行机理的认识不够深入。为激发学生学习兴趣，增强教学效果，以电动汽车无线电能传输为应用背景，对传统无线电能传输系统架构进行设计。基于基波等效法和基尔霍夫电压定律建立无线电能传输的几种典型结构数学模型，分析在谐振状态下不同结构的输出电压、电流、功率以及传输效率等特性。介绍无线电能传输教学实训平台的搭建过程，包括逆变器、整流器、磁耦合结构的设计和利兹线的计算选择等。在教学实训平台验证了几种典型无线电能传输结构的工作特性，使学生增强电力电子实践能力的同时对无线电能传输系统有更深入的认识。
Keyword ：
实验平台搭建 实验平台搭建 恒压恒流结构 恒压恒流结构 无线电能传输 无线电能传输 电动汽车 电动汽车 磁耦合结构 磁耦合结构
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| GB/T 7714 | 张艺明 , 吴元超 , 毛行奎 et al. 基于磁耦合电动汽车无线电能传输教学实训平台研究与实践 [J]. | 实验室研究与探索 , 2024 , 43 (05) : 93-98 . |
| MLA | 张艺明 et al. "基于磁耦合电动汽车无线电能传输教学实训平台研究与实践" . | 实验室研究与探索 43 . 05 (2024) : 93-98 . |
| APA | 张艺明 , 吴元超 , 毛行奎 , 陈孝莺 . 基于磁耦合电动汽车无线电能传输教学实训平台研究与实践 . | 实验室研究与探索 , 2024 , 43 (05) , 93-98 . |
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Wireless charging for automatic guided vehicles (AGVs) has gained increasing interest. One of the charging issue is misalignment tolerance. This brief proposes an AGV static wireless charging system with dual receiving coils to achieve the anti-offset characteristic. The two receiving coils are specially designed to be decoupled and have a smooth coupling coefficient variation along misalignment. They are connected to two diode rectifiers, which are paralleled on the DC side. The proposed WPT system will automatically choose the maximum coupling for power transfer. In this way, the misalignment-tolerant WPT system can be achieved. An experimental prototype is implemented to validate the proposal.
Keyword ：
Coils Coils Couplings Couplings diode rectifier diode rectifier dual receiving coils dual receiving coils Misalignment tolerance Misalignment tolerance Rectifiers Rectifiers Switches Switches Topology Topology wireless charging wireless charging Wireless communication Wireless communication Wireless power transfer Wireless power transfer wireless power transfer (WPT) wireless power transfer (WPT)
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| GB/T 7714 | Mao, Xingkui , Lin, Jinhui , Su, Tianzhang et al. Automatic Guided Vehicle Wireless Charging With Dual Receiving Coils for Misalignment Tolerance [J]. | IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS , 2024 , 71 (1) : 336-339 . |
| MLA | Mao, Xingkui et al. "Automatic Guided Vehicle Wireless Charging With Dual Receiving Coils for Misalignment Tolerance" . | IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS 71 . 1 (2024) : 336-339 . |
| APA | Mao, Xingkui , Lin, Jinhui , Su, Tianzhang , Zhang, Yiming . Automatic Guided Vehicle Wireless Charging With Dual Receiving Coils for Misalignment Tolerance . | IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS , 2024 , 71 (1) , 336-339 . |
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The unipolar, bipolar, and quadrupolar coils used in an electric vehicle wireless charging system are not interoperable with each other. Thus, there would be interoperability issues when the transmitting and receiving coils are not the same. To solve this issue, in this letter, we propose an asymmetrical quadrupolar coil that can be interoperable with the four conventional coils at the same position for efficient wireless power transfer, namely the unipolar coil, the bipolar coil along two perpendicular directions, and the quadrupolar coil. Large coupling coefficients can be achieved for the proposed coil with the four conventional coils when perfectly aligned. The misalignment performance with the four conventional coils is also investigated. An experimental prototype is developed to compare the conventional symmetrical quadrupolar coil with the proposed asymmetrical quadrupolar coil for validation of interoperability. The proposed asymmetrical quadrupolar coil achieves a maximum coupling coefficient of over 0.10 and a maximum dc-dc efficiency of over 85% with the four conventional coils.
Keyword ：
Bipolar Bipolar interoperability interoperability quadrupolar quadrupolar tolerance tolerance unipolar unipolar wireless charging wireless charging wireless power transfer (WPT) wireless power transfer (WPT)
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| GB/T 7714 | Zhang, Yiming , Liu, Chao , Zhou, Mingzhu et al. A Novel Asymmetrical Quadrupolar Coil for Interoperability of Unipolar, Bipolar, and Quadrupolar Coils in Electric Vehicle Wireless Charging Systems [J]. | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2024 , 71 (4) : 4300-4303 . |
| MLA | Zhang, Yiming et al. "A Novel Asymmetrical Quadrupolar Coil for Interoperability of Unipolar, Bipolar, and Quadrupolar Coils in Electric Vehicle Wireless Charging Systems" . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 71 . 4 (2024) : 4300-4303 . |
| APA | Zhang, Yiming , Liu, Chao , Zhou, Mingzhu , Mao, Xingkui . A Novel Asymmetrical Quadrupolar Coil for Interoperability of Unipolar, Bipolar, and Quadrupolar Coils in Electric Vehicle Wireless Charging Systems . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2024 , 71 (4) , 4300-4303 . |
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This paper proposes a zero-input-current-ripple (ZICR) high-voltage-gain dc-dc converter with an integrated Y-source network. It achieves zero input current ripple by introducing a parallel branch of an extra inductor, a coupled winding, and a capacitor at the input port. The voltage of the added inductor is opposite to that of the coupled winding. By adding the Y-source coupled inductor, the boost capability of the converter is improved. The unique boost circuit structure makes that one winding in the three-winding coupling inductance is step-down type (the turns ratio n(2) < 1) while the other winding is step-up type (the turns ratio n(1) > 1). In such a case, high voltage gain can be obtained under a lower turn ratio of the coupled inductor. The inherent passive clamping circuit clamps the spike voltage noises of the main switch to a low level and improves the efficiency. All the diodes have achieved ZCS (zero current switching) turn-off. By comparing with several new converters, the advantages of this converter are proved. Finally, a 200-W, 48- to 380-V, 50-kHz experimental prototype is built based on the theoretical research. At the rated power, the measured efficiencies with and without ZICR are 95.2% and 95.6%, respectively.
Keyword ：
coupled inductor coupled inductor dc-dc converter dc-dc converter high voltage gain high voltage gain Y-source Y-source zero input current ripple zero input current ripple
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| GB/T 7714 | Zhou, Mingzhu , Liu, Chao , Chen, Xiaoying et al. A zero-input-current-ripple high-voltage-gain DC-DC converter with integrated Y-source network [J]. | INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS , 2024 . |
| MLA | Zhou, Mingzhu et al. "A zero-input-current-ripple high-voltage-gain DC-DC converter with integrated Y-source network" . | INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS (2024) . |
| APA | Zhou, Mingzhu , Liu, Chao , Chen, Xiaoying , Mao, Xingkui , Zhang, Yiming . A zero-input-current-ripple high-voltage-gain DC-DC converter with integrated Y-source network . | INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS , 2024 . |
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In wireless power transfer systems for electric vehicles, coil misalignment is inevitable in most charging situations. Most present studies concentrate on the misalignment tolerance in one direction, either in the X, Y, Z, or diagonal directions, but lack the misalignment tolerance on the whole charging plane. In this article, a reconfigurable adaptive topology and centrosymmetric coils are proposed to achieve misalignment tolerance over the whole charging plane. By switching among three operation modes of the proposed reconfigurable topology at the different misaligned regions, the output voltage at the boundary regions can be increased and the output voltage fluctuation can be limited. First, the mathematical model of the proposed reconfigurable adaptive topology in the different operation modes is investigated. Second, the design process of the magnetic coupler and the characteristics of the centrosymmetric coils are presented. Finally, a 926-W prototype is built to verify the proposed system. The experimental results demonstrate that the fluctuation of the output voltage is less than 21.3% apart from the four most corner regions, and the peak efficiency is 84.5%.
Keyword ：
Centrosymmetric coils Centrosymmetric coils electric vehicles (EVs) electric vehicles (EVs) misalignment tolerance misalignment tolerance reconfigurable topology reconfigurable topology wireless power transfer (WPT) wireless power transfer (WPT)
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| GB/T 7714 | Huang, Zhongjin , Liu, Chao , Pan, Wenxuan et al. Misalignment Tolerance of Electric Vehicle Wireless Charging System Based on Reconfigurable Adaptive Topology and Centrosymmetric Coils [J]. | IEEE TRANSACTIONS ON POWER ELECTRONICS , 2024 , 39 (4) : 4815-4823 . |
| MLA | Huang, Zhongjin et al. "Misalignment Tolerance of Electric Vehicle Wireless Charging System Based on Reconfigurable Adaptive Topology and Centrosymmetric Coils" . | IEEE TRANSACTIONS ON POWER ELECTRONICS 39 . 4 (2024) : 4815-4823 . |
| APA | Huang, Zhongjin , Liu, Chao , Pan, Wenxuan , Chen, Xiaoying , Mao, Xingkui , Zhang, Yiming . Misalignment Tolerance of Electric Vehicle Wireless Charging System Based on Reconfigurable Adaptive Topology and Centrosymmetric Coils . | IEEE TRANSACTIONS ON POWER ELECTRONICS , 2024 , 39 (4) , 4815-4823 . |
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In an electric vehicle wireless charging system, the dramatic variation of the mutual inductance caused by the coil misalignment is an urgent problem to be solved. An offset-resistant wireless charging system based on dual decoupled receiving coils is proposed, with one receiving coil as the unipolar coil and the other as the quadrupolar coil. With series compensation, they are connected in series through the diode rectifier. In this way, the total equivalent mutual inductance is the summation of the absolute values of the two mutual inductances. Thus, the total equivalent mutual inductance can remain stable against misalignment, guaranteeing a stable system output. Experimental results confirm that the designed system has good misalignment tolerance capability in two perpendicular directions, enabling stable and efficient power transmission. Along the misalignment, the output voltage fluctuation is only 2.81% with the highest system efficiency of 94.68%.
Keyword ：
Dual receivers Dual receivers LCC-S LCC-S misalignment tolerance misalignment tolerance offset-resistant offset-resistant wireless power transfer (WPT) wireless power transfer (WPT)
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| GB/T 7714 | Shen, Zhiwei , Zhou, Hangyan , Xie, Ronghuan et al. A Strong Offset-Resistant Electric Vehicle Wireless Charging System Based on Dual Decoupled Receiving Coils [J]. | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2024 . |
| MLA | Shen, Zhiwei et al. "A Strong Offset-Resistant Electric Vehicle Wireless Charging System Based on Dual Decoupled Receiving Coils" . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS (2024) . |
| APA | Shen, Zhiwei , Zhou, Hangyan , Xie, Ronghuan , Zhuang, Yizhan , Mao, Xingkui , Zhang, Yiming . A Strong Offset-Resistant Electric Vehicle Wireless Charging System Based on Dual Decoupled Receiving Coils . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2024 . |
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