Xiaofeng Zhu

Research on the Efficiency and Safety of the Pulse Thulium Fiber Laser Lithotripsy through model Experimental

Yucheng Yao, Jie Zhou, Haoyong Li, Kaizhi Zhang et autres

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Study on Winding Inductances in Stator Surface-Mounted Permanent Magnet Machines

Xiaofeng Zhu, Yan Yue

Winding inductance always plays a key role in the electromagnetic performances of stator surface-mounted permanent magnet (SSPM) machines, including their flux-weakening capability, prospective fault current, power factor, current ripple, etc. Generally speaking, winding inductance mainly comprises three components: an air-gap component, a …

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Thermal error prediction of ball screws in full-time series using working condition data based on a mechanism and data hybrid-driven model

Min Wang, Wenlong Lu, Kuan Zhang, Xiaofeng Zhu et autres

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Generalized Fault-Tolerant Model Predictive Control of Five-Phase PMSM Drives Under Single/Two Open-Switch Faults

Wentao Huang, Xiaofeng Zhu, Hengliang Zhang, Wei Hua

To address both single open-switch fault (OSF) and arbitrary two OSFs of a five-phase permanent magnet synchronous motor (PMSM) drive, a generalized fault-tolerant model predictive current control method is proposed in this article. First, the postfault currents under OSFs are analyzed in …

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Thermal Error Prediction of Ball Screws in Full Time Series Using Working Condition Data Based on Mechanism and Data Hybrid-Driven Model

Min Wang, Wenlong Lu, Kuan Zhang, Xiaofeng Zhu et autres

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Open-Circuit Fault-Tolerant Control of Five-Phase PMSM Drives

Wentao Huang, Liyan Luo, Jiachen Du, Xiaofeng Zhu

Based on the optimal current control principle, a fault-tolerant control strategy is proposed for a five-phase permanent magnet synchronous motor (PMSM) drive with a single open-circuit fault (OCF). The fast Fourier transformation and the concept of undisturbed rotating magnetomotive force are utilized …

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Reduction of Magnet Usage in Flux-Reversal Permanent Magnet Machine for Electric Vehicle

Xiaofeng Zhu, Guishu Zhao, Shuye Ding, Wei Hua

In this paper, a new topology of magnet usage reduction for flux-reversal permanent magnet (FRPM) machines used in electric vehicles is proposed and verified by comparing the corresponding electromagnetic performances with a conventional FRPM machine. Firstly, the topology of the proposed machine …

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Analysis of Loss Modeling in Flux-Reversal PM Machine

Zichen Jin, Xiaofeng Zhu, Shuye Ding, Heng Zhu

Flux-reversal permanent-magnet (FRPM) machine has gained more and more attention in the recent years due to its several advantages, such as simple rotor structure and easy heat management. In this paper, the iron loss either in no-load and on-load condition is modeled, …

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Analysis of a Novel Fault-Tolerant Multi-Tooth Flux-Switching Permanent Magnet Machine

Zichen Jin, Xiaofeng Zhu, Shuye Ding, Guangzhi Li

Flux-switching permanent-magnet machines with multi-tooth stator structure have attracted wide attention due to their advantages of high torque density and high efficiency. Based on it, a fault-tolerant multi-tooth flux-switching permanent-magnet machine (FTMFSPM) is proposed and compared to the conventional fault-tolerant flux-switching permanent-magnet …

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Torque Ripple Reduction of Model Predictive Controlled Five-Phase PMSM Drives With Open-Circuit Faults

Jiachen Du, Wentao Huang, Xiaofeng Zhu, Liyan Luo et autres

In this article, a fault-tolerant model predictive current control (MPCC) method is proposed to improve the fault-tolerant ability of a five-phase permanent synchronous magnet motor drive under single and multiple open-circuit faults (OCFs) operations. On the principle of the optimal current control …

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Comparative Study on Three Novel Hybrid Excited Multitooth Flux-switching Permanent Magnet Machines

Zichen Jin, Xiaofeng Zhu, Shaoxian Chen, Zhengliang Li et autres

In this paper, to apply the advantages of hybrid excited (HE) machine to flux switching permanent magnet machine with multi-tooth stator structure (MFSPM), three novel hybrid excited multitooth flux switching permanent magnet (HE-MFSPM) machines are proposed. The three topologies are basically the …

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Analysis of Open-Circuit Performances in Flux-Reversal Permanent Magnet Machines by Superposition Methods

Xiaofeng Zhu, Wei Hua, Guishu Zhao

In this paper, superposition methods including the superposition of a single stator tooth and the superposition of a single rotor tooth, are proposed to predict the open-circuit performances of flux-reversal permanent magnet (FRPM) machines. By the proposed superposition methods, the electromagnetic performances, …

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