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IEEE Transactions on Power Electronics
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#1Zhaotian Yan (Southwest Jiaotong University)H-Index: 1
#2Bin Yang (Southwest Jiaotong University)H-Index: 2
Last. Zhengyou He (Southwest Jiaotong University)H-Index: 19
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Multitransmitter wireless power transfer system gets more and more applications as it can maintain high efficiency in a large space range. This article focuses on modeling the multitransmitter system, and proposes an impedance matching method to improve efficiency under lateral-misalignment conditions. The theoretical analysis shows that the maximum transfer efficiency can be achieved as long as the equivalent input impedance of the transmitters is regulated to be the same under misalignment con...
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#1Yongcan Huang (CityU: City University of Hong Kong)H-Index: 1
#2Chunhua Liu (CityU: City University of Hong Kong)H-Index: 27
Last. Senyi Liu (CityU: City University of Hong Kong)H-Index: 2
view all 4 authors...
Most of the existing one-to-multiple wireless power transfer systems are single-channel one-to-multiple wireless power transfer (SOWPT) systems. They only utilize one power channel to charge multiple receivers. In this article, a novel multichannel one-to-multiple wireless power transfer (MOWPT) system is proposed, which can deliver power to different receivers simultaneously with separate power channels. In the proposed MOWPT system, the composited compensation topology is utilized to build mul...
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#1Zekun Xia (McMaster University)H-Index: 1
#2Shamsuddeen Nalakath (McMaster University)H-Index: 4
Last. Ali Emadi (McMaster University)H-Index: 57
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This article proposes a new online optimal tracking method with improved maximum torque per ampere (MTPA) and maximum torque per volt (MTPV) considering magnetic core saturation. The conventional optimality criteria for MTPA and MTPV do not consider magnetic core saturation, and therefore results in deviation from the optimal trajectory especially at higher load currents. This article establishes a mathematical formulation to consider magnetic core saturation in both MTPA and MTPV criteria and p...
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#1M. S. HassanH-Index: 2
#1M. S. Hassan (Minia University)
Last. Gamal M. Dousoky (Minia University)H-Index: 8
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Common-mode voltage (CMV), caused by standard high-frequency pulsewidth modulated (PWM) voltage source inverters (VSIs), is a major area of interest in various applications, such as electric motor drives, transformerless photovoltaic systems, and grid-tied inverters. Since VSIs have only the buck capability during the inversion mode, an additional boosting stage either in the dc side or in the ac side has to be utilized for low-voltage-fed applications. On the other hand, single-stage solutions,...
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#1Feng Wen (Nanjing University of Science and Technology)H-Index: 1
#2Fansheng Jing (Nanjing University of Science and Technology)
Last. Xiaohu Chu (Nanjing University of Science and Technology)H-Index: 1
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This article investigates the tapered and curved coil used in wireless power transfer (WPT) system for the purpose of improving flexibility in specific applications. The WPT transmission performance is always declined by coil bending. To solve this problem, the models of the coils are built, and their magnetic flux are analyzed. The phenomenon of curvature angle splitting is studied, the mechanism is revealed, and the method is proposed to avoid the splitting. Formulas are derived to determine w...
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#1Gaolin Wang (HIT: Harbin Institute of Technology)H-Index: 25
#2Haiming Hu (HIT: Harbin Institute of Technology)
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Permanent magnet synchronous motor (PMSM) drives equipped with slim film capacitors have many advantages, including longer lifetime, smaller volume, and lower cost. However, improving the dc-link voltage utilization rate by the typical overmodulation strategy will cause the distortion of the stator voltage and current due to the dc-link voltage fluctuation. In this article, the influence of the dual-mode overmodulation strategy used in the small dc-link capacitor PMSM drive, including the stator...
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#1Borong Wang (ZJU: Zhejiang University)H-Index: 1
#2Zhan Li (ZJU: Zhejiang University)H-Index: 3
Last. Hao MaH-Index: 14
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A redundant unit has been utilized in prior work for a T-type three-level inverter to handle multiple open-circuit faults, but the output was limited to two levels. In this article, equivalent switching state and improved virtual vector methods are proposed to complement switching states and provide better fault-tolerant performance. Under fault scenarios, equivalent replacement of unreachable switching states can be used to generate the target line-to-line voltages. If the replacement cannot be...
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#1Zhiheng Lin (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 2
Last. Weiwei Li (EPRI: Electric Power Research Institute)H-Index: 1
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The grid voltage full feedforward scheme is an effective method to improve the injected grid current quality of the grid-connected inverter. However, due to the digital control delay, the suppression of the injected grid current harmonics is weakened, and the inverter output impedance has an additional negative phase shift, which deteriorates the system stability under weak grid. In this article, a multi resonant component-based grid-voltage-weighted feedforward scheme is proposed, which introdu...
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#1Xiangjun Zhang (HIT: Harbin Institute of Technology)H-Index: 3
#1Xiangjun ZhangH-Index: 3
Last. Xu Dianguo (HIT: Harbin Institute of Technology)H-Index: 29
view all 7 authors...
A novel high step-up dc–dc converter with coupled inductor and switched capacitor is proposed in this article. The proposed converter adopts capacitors charged in parallel and discharged in series with a coupled inductor to achieve high step-up voltage gain. By utilizing the energy stored in the leakage of the coupled inductor, both of the switches can realize zero-voltage switching, which can reduce switching loss and improve efficiency. In addition, the voltage stress of the switches and diode...
1 CitationsSource
#1Priayank Shah (IITD: Indian Institute of Technology Delhi)
#2Bhim Singh (IITD: Indian Institute of Technology Delhi)H-Index: 63
In this paper, the multifunctional adaptive observer-based control scheme is proposed for double-stage grid interacted solar energy conversion system (SECS) with distribution static compensator (DSTATCOM) abilities. The adaptive observer based control scheme facilitates the manifold power quality (PQ) functionalities in the distribution grid such as grid currents balancing, unity power factor, harmonics compensation, adaptive DC link voltage regulation etc. The DC link voltage is varied adaptati...
8 CitationsSource
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