Search Results - "Yan, Qingzeng"

A Double-Modulation-Wave PWM for Dead-Time-Effect Elimination and Synchronous Rectification in SiC-Device-Based High-Switching-Frequency Converters by Yan, Qingzeng, Yuan, Xibo

“…The adoption of fast-switching silicon carbide (SiC) devices enables power converters to operate at high switching frequencies (e.g., 100 kHz). However, as a…”
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Erratum to "A Double-Modulation-Wave PWM for Dead-Time-Effect Elimination and Synchronous Rectification in SiC-Device-Based High-Switching-Frequency Converters" [Dec 20 13500-13513] by Yan, Qingzeng, Yuan, Xibo

“…Presents corrections to author information in the above named paper…”
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A DSOGI-FLL-Based Dead-Time Elimination PWM for Three-Phase Power Converters by Yan, Qingzeng, Zhao, Rende, Yuan, Xibo, Ma, Wenzhong, He, Jinkui

“…The dead-time elimination pulsewidth modulation (PWM) enables the drive pulses of the upper and the lower switching devices to alternate according to the…”
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An Analytical Discontinuous Space-Vector PWM for Three-Level Inverters With Unbalanced DC-Link Voltages by Yan, Qingzeng, Xiao, Langtao, Chen, Haoming, Yuan, Xibo, Xu, Hailiang, Zhao, Rende

“…When faced with unbalanced dc-link voltages of three-level inverters, extra harmonics will be generated with reduced linear modulation region if the…”
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A Simplified Analytical Algorithm in abc Coordinate for the Three-Level SVPWM by Yan, Qingzeng, Zhou, Zanrong, Wu, Mingbo, Yuan, Xibo, Zhao, Rende, Xu, Hailiang

“…Given the high complexity of the conventional three-level space-vector pulsewidth modulation (3L SVPWM), simplified SVPWM algorithms are usually adopted…”
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A Paralleled Current and Voltage Control Strategy With Compound PI Controllers for Three-Phase Active Power Filters by Yan, Qingzeng, Zhang, Longlong, Zhao, Rende, He, Jinkui, Guo, Longzhen, Zhang, Zixu

“…The conventional control strategy for active power filters (APF) is essentially a nested structure, where the output of the outer voltage loop will affect the…”
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Enhanced Excitation Converter with Parallel/Series DC-Link Based on TAB for DFIG to Improve the LVRT Capability Under Severe Grid Faults by Gu, Jiateng, Zhao, Rende, He, Jinkui, Xu, Juntao, Yan, Qingzeng, Sun, Chuandong, Liu, Hao

“…The low-voltage ride-through (LVRT) capability of the doubly-fed induction generator (DFIG) based on the conventional excitation converter is insufficient…”
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An Improved Grid-Voltage Feedforward Strategy for High-Power Three-Phase Grid-Connected Inverters Based on the Simplified Repetitive Predictor by Yan, Qingzeng, Wu, Xiaojie, Yuan, Xibo, Geng, Yiwen

“…When faced with distorted grid voltage, more harmonics will appear in the output currents of the grid-connected inverters. The grid-voltage feedforward…”
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Performance Evaluation of Split Output Converters With SiC MOSFETs and SiC Schottky Diodes by Qingzeng Yan, Xibo Yuan, Yiwen Geng, Charalambous, Apollo, Xiaojie Wu

“…The adoption of silicon carbide (SiC) MOSFETs and SiC Schottky diodes in power converters promises a further improvement of the attainable power density and…”
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Optimization of the Symmetrical SVPWM for Three-Level T-Type Inverters with Unbalanced and Oscillated Neutral-Point Voltages by Yan, Qingzeng, Chen, Haoming, Zhao, Tianrun, Yuan, Xibo, He, Jinkui, Xu, Hailiang, Zhang, Longlong, Zhao, Rende

“…The symmetrical space-vector pulse-width-modulation (SVPWM) has been widely adopted in three-level (3L) T-type inverters due to its low current harmonics and…”
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An Analytical Simplified Three-Level SVPWM With Unified Zero-Sequence Component Injection by Yan, Qingzeng, Zhang, Xincheng, Zhao, Tianrun, Yuan, Xibo, Zhao, Rende

“…The carrier-based pulse width modulation (CBPWM) with zero-sequence component injection is equivalent to the space-vector PWM (SVPWM), and hence it can be…”
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A Double-Modulation-Wave PWM With Reduced Dependency on Current Polarities for Dead-Time-Effect Elimination in Three-Level T-Type Converters by Yan, Qingzeng, Xiao, Langtao, Yuan, Xibo, Zhang, Xincheng, Yuan, Cheng, Zhao, Rende, Xu, Hailiang

“…No dead-time is contained in the existing dead-time elimination pulsewidth modulation (PWM) for three-phase three-level T-type converters, where complementary…”
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A Practical Core Loss Estimation Method for Three-Phase Three-Level Grid-Connected Inverters by Zhao, Rende, Wang, Cun, Loh, Poh Chiang, Yan, Qingzeng, Xu, Hailiang, Blaabjerg, Frede

“…In a three-phase three-level grid-connected inverter, the ac output current ripple actually fluctuates four times per switching period with each fluctuation…”
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A double‐modulation‐wave discontinuous pulse‐width‐modulation for dead‐time‐effect elimination and switching‐loss reduction in two‐level power converters by Yan, Qingzeng, Zhou, Zanrong, Wu, Mingbo

“…High current qualities and high efficiencies are always two important characteristics for power converters. However, it is challenging to achieve the two…”
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A Systematic Study of Associations between Supernova Remnants and Molecular Clouds by Zhou, Xin, Su, Yang, Yang, Ji, Chen, Xuepeng, Sun, Yan, Jiang, Zhibo, Wang, Min, Wang, Hongchi, Zhang, Shaobo, Xu, Ye, Yan, Qingzeng, Yuan, Lixia, Chen, Zhiwei, Ao, Yiping, Ma, Yuehui

“…Abstract We universally search for evidence of kinematic and spatial correlation of supernova remnant (SNR) and molecular cloud (MC) associations for nearly…”
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CO(J = 1 – 0) Observations toward the Filamentary Cloud in the Galactic Region of 153.°60 ≤ l ≤ 156.°50 and 1.°85 ≤ b ≤ 3.°50 by Guo, Weihua, Chen, Xuepeng, Feng, Jiancheng, Sun, Li, Zhang, Shiyu, Wang, Chen, Su, Yang, Sun, Yan, Yan, Qingzeng, Zhang, Shaobo, Zhou, Xin, Zhang, MiaoMiao, Fang, Min, Yang, Ji

“…Abstract We present observations of the J = 1 – 0 transition lines of 12 CO, 13 CO, and C 18 O toward the Galactic region of 153.°60 ≤ l ≤ 156.°50 and 1.°85 ≤…”
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Gershgorin-Circle Based Low-Complexity Generalized Nyquist Stability Criterion for DFIG Driven Wind Turbines by Xu, Hailiang, Wu, Han, Li, Zhi, Yan, Qingzeng, Blaabjerg, Frede

“…Recently, the stability issue caused by interactions between the doubly-fed induction generator (DFIG)-based wind turbines (WTs) and weak grids has attracted…”
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A Novel Zero-Sequence-Voltage-Balanced SVPWM With the Analyses of Common-Mode Voltage and Differential-Mode Current by Zhao, Rende, Jiang, Xianqiang, Wang, Cun, Wang, Yansong, Xu, Hailiang, Yan, Qingzeng

“…In three-phase voltage source converters (VSCs), the high-frequency leakage current can be easily suppressed by the common-mode choke, while low-frequency…”
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Minimization of the DC Component in Transformerless Three-Phase Grid-Connected Photovoltaic Inverters by Yan, Qingzeng, Wu, Xiaojie, Yuan, Xibo, Geng, Yiwen, Zhang, Qi

“…The dc component is a special issue in transformerless grid-connected photovoltaic (PV) inverter systems and may cause problems regarding system operation and…”
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Multi-stage Multi-energy Flow Integrated Energy Systems of Electricity, Gas, and Heat Based on Heterogeneous Energy Flow Characteristics by Gou, Qinglong, Wang, Yansong, Yan, Qingzeng

“…INTRODUCTION: The development of integrated energy systems (IES) is of paramount significance in addressing climate change and other challenges. Ensuring the…”
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