Search Results - "Ke, Ziwei"

DC Bus Capacitor Discharge of Permanent-Magnet Synchronous Machine Drive Systems for Hybrid Electric Vehicles by Ziwei Ke, Zhang, Julia, Degner, Michael W.

“…This paper investigates control methods to quickly and safely discharge the high-voltage dc bus capacitor for the permanent-magnet synchronous machine drive…”
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Low-Frequency Current Oscillation Reduction for Six-Step Operation of Three-Phase Inverters by Ziwei Ke, Zhang, Julia, Raich, Raviv

“…This paper investigates a control method to significantly reduce the low-frequency current oscillation for six-step operation of a three-phase inverter. The…”
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DC-Bus Voltage Sensorless Control of an Active Rectifier with Modular Multilevel Converter by Pan, Jianyu, Du, Yihao, Ke, Ziwei

“…The modular multilevel converter (MMC) is recognized as one of the promising converters for the electrification of ships and railways. Among different energy…”
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Optimizing palliative care education through undergraduate nursing students' perceptions: Application of importance-performance analysis and Borich needs assessment model by Ziwei, Ke, Mengjiao, Chen, Yongjie, Zhang, Mengqi, Zhang, Yeqin, Yang

“…With the aging of the population and the increasing trend of chronic illnesses, the demand for palliative care is growing. Undergraduate nursing students will…”
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Improve the satisfaction of medical staff on the use of home nursing mobile APP by using a hybrid multi-standard decision model by Ke, Ziwei, Qian, Weiyang, Wang, Nan, Chuang, Yen-Ching, Wei, Biying, Feng, Jing

“…To identify critical satisfaction gaps in a home nursing mobile application (APP) using a systematic decision-making model. Initially, the decision-making…”
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Development of central venous access device‐associated skin impairment assessment instrument by Liu, Min, Zheng, Chonghao, Guan, Xiangyun, Ke, Ziwei, Zou, Ping, Yang, Yeqin

“…Aim To develop an assessment tool to assess the severity and healing of skin impairment with the central venous access device. Design Delphi technique. Methods…”
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Prevalence and correlates of lifestyle behavior, anxiety and depression in Chinese college freshman: A cross-sectional survey by Gao, Chenchen, Sun, Yumei, Zhang, Feifei, Zhou, Fang, Dong, Chaoqun, Ke, Ziwei, Wang, Qingyan, Yang, Yeqin, Sun, Hongyu

“…First-year college students had exposure to unhealthy lifestyle behaviors that correlate with a high prevalence of anxiety and depression. Regarding to the…”
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Subharmonic reduction for six step operation of three-phase inverter by Ziwei Ke, Zhang, Julia

“…The six step operation of an AC electric machine drive system under high speeds has a few advantages compared with the pulse width modulation (PWM) operation…”
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Multi-Winding Transformer Based Cell Balancing System with Cost-Effective Gate Drivers by Ye, Yuanmao, Huang, Pengfeng, Ke, Ziwei, Wang, Xiaolin

“…Cell balancing is a crucial element of battery management systems to ensure that the voltage difference of cells is within an appropriate range. This work…”
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An Optimized Model Predictive Control for Three-Phase Four-Level Hybrid-Clamped Converters by Yang, Yong, Pan, Jianyu, Wen, Huiqing, Na, Risha, Wang, Hongyu, Zhang, Zhiwei, Ke, Ziwei, Xu, Longya

“…An optimized model predictive control (MPC) method is proposed based on the selected switching states to control the four-level hybrid-clamped converter. The…”
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Simple Switching Strategies for dv/dt Reduction in SiC-Device-Based Modular Multilevel Converters by Li, Xiao, Liu, Rui, Ke, Ziwei, Pan, Jianyu, Hu, Boxue, Na, Risha, Xu, Longya, Wang, Jin

“…This article presents two simple strategies for output dv/dt reduction in modular multilevel converters through coordination of the switching transients of the…”
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7-kV 1-MVA SiC-Based Modular Multilevel Converter Prototype for Medium-Voltage Electric Machine Drives by Pan, Jianyu, Ke, Ziwei, Al Sabbagh, Muneer, Li, He, Potty, Karun Arjun, Perdikakis, Will, Na, Risha, Zhang, Julia, Wang, Jin, Xu, Longya

“…This article presents the design and development of a 7-kV dc bus, 1-MVA, 0-1000 Hz modular multilevel converter (MMC) prototype for high speed medium-voltage…”
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Capacitor Voltage Ripple Estimation and Optimal Sizing of Modular Multi-Level Converters for Variable-Speed Drives by Ke, Ziwei, Pan, Jianyu, Sabbagh, Muneer Al, Na, Risha, Zhang, Julia, Wang, Jin, Xu, Longya

“…This work deals with the sizing of submodule capacitors for modular multilevel converters (MMCs) used for variable speed drives for medium voltage and high…”
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Optimal submodule capacitor sizing for modular multilevel converters with common mode voltage injection and circulating current control by Ziwei Ke, Jianyu Pan, Potty, Karun, Perdikakis, William, Shanmuganaatham, Arvind, Al Sabbagh, Muneer, Zhang, Julia, Fang Luo, Jin Wang, Longya Xu

“…Modular multilevel converters (MMCs), with the filter-less and transformer-less features, are considered as a promising topology for high-efficiency medium…”
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Zero-Cost Closed-Loop Discharging Method for Modular Multilevel Converter Submodules Without External Circuits by Pan, Jianyu, Ke, Ziwei, Al Sabbagh, Muneer, Na, Risha, Zhang, Julia, Wang, Jin, Xu, Longya

“…A novel submodule capacitor discharging control strategy is proposed and implemented for modular multilevel converters (MMCs). By sequentially controlling the…”
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Integrated Control and Performance Analysis of High-Speed Medium-Voltage Drive Using Modular Multilevel Converter by Pan, Jianyu, Ke, Ziwei, Li, Xiao, Zhao, Yihui, Zhang, Julia, Wang, Jin, Xu, Longya

“…The modular multilevel converter (MMC) is highly attractive to develop high-speed medium-voltage variable frequency drives (MV VFDs) due to its cascaded…”
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DC bus capacitor discharge of permanent magnet synchronous machine drive systems for hybrid electric vehicles by Ziwei Ke, Zhang, Julia, Degner, Michael W.

“…This paper investigates control methods to quickly and safely discharge the high voltage DC bus capacitor for the permanent magnet synchronous machine (PMSM)…”
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Double-Vector Model Predictive Control for Single-Phase Five-Level Actively Clamped Converters by Yang, Yong, Pan, Jianyu, Wen, Huiqing, Zhang, Zhiwei, Ke, Ziwei, Xu, Longya

“…In this article, a double-vector-based model predictive control (MPC) method with efficient computation for single-phase five-level active neutral-point…”
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High-speed and High-dynamic Variable Frequency Drive Using Modular Multilevel Converter and SiC Devices by Pan, Jianyu, Ke, Ziwei, Na, Risha, Zhang, Julia, Xu, Longya

“…This paper presents a high-speed and high-dynamic variable frequency drive (VFD) based on the modular multilevel converter (MMC) and silicon carbide (SiC)…”
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Single-Submodule Open-Circuit Fault Diagnosis for a Modular Multi-level Converter Using Arti cial Intelligence-basedTechniques by Ke, Ziwei

“…Due to the increased attention in electronic power conversion for high-power applications, the development of new converter topologies with new semiconductor…”
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