Guishu Zhao

An Improved Core Loss Prediction Model Using Interval-Based Nonlinear Fitting for High-Frequency Transformers

Peng Su, Jing Wu, Hang Zhang, Yongjian Li et autres

Accurate prediction of core losses in soft magnetic materials under high-frequency and high-flux-density conditions remains a significant challenge. This paper addresses this challenge by introducing an improved core loss separation model (INF -Bertotti). The core innovation of this research lies in the …

H∞$$ {H}_{\infty } $$ Filter Design for Load Frequency Control Systems With Limited Communications and Cyber Attacks as Well as Probabilistic Interval Delays

Junda Li, Xuyang Du, Guobao Liu, Huai Liu et autres

ABSTRACT This paper investigates the design of filters for load frequency control (LFC) systems, considering factors such as packet loss, spoofing attacks, and probabilistic interval delays. Firstly, to better reflect the uncertainty of communication delays in practical scenarios, the filter design process …

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Analysis of Winding slot and Stator-Rotor Pole Combinations of Modular Transverse Flux-Switching Permanent Magnet Machine

Lujia Xie, Tianli Liu, Yongjian Li, Peng Su et autres

This paper investigates the influence of winding slot and stator/rotor pole combinations on the electromagnetic torques of modular transverse flux-switching permanent magnet (MTFSPM) machine. Firstly, a unique winding factor calculation method for MTFSPM machines is proposed. By introducing the concept of virtual …

Research on Combinations of Stator Poles and Rotor Teeth for Conventional Flux-Switching Brushless Machines with Composite Phase Numbers

Lin Li, Guishu Zhao, Yueheng Ding, Wei Hua

In this paper, a method for determining the optimal stator-rotor combinations of conventional flux-switching permanent magnet (FSPM) machines with composite phase numbers covering symmetrical and asymmetrical topologies is proposed by changing the equivalent number of coils per pole per phase (ENCPP) or …

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General Selection Methodology for the Stator-Poles and Rotor Teeth Combinations of Stator-Permanent Magnet Flux-Switching Machines

Zhiyuan Xu, Ming Cheng, Guishu Zhao, Minghao Tong et autres

This paper proposes a general selection methodology for the stator-poles and rotor teeth (Ps-Tr) combination of stator-permanent magnet flux-switching (SPM-FS) machines. With the purpose of establishing complementary mechanism, achieving the highest winding factor, and minimizing the cogging torque, this paper investigates thePs-Trcombination …

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General Principles of Combinations of Stator Poles and Rotor Teeth for Conventional Flux-Switching Brushless Machines with Prime Phase Numbers

Chuhan Gao, Xun Jia, Guishu Zhao, Wei Hua et autres

In order to achieve the optimal stator–rotor combinations of conventional flux-switching permanent magnet (FSPM) machines, this paper proposes and analyzes a general principle with prime phase numbers. Based on the coil complementarity concept, the proposed methodology specifically addresses the phase symmetry of …

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Research on a new stator wound field flux switching machine based on the magnetic field modulation principle

Kai Ni, Shuye Ding, Guishu Zhao

Abstract The stator wound field flux switching (SWFFS) machine is a high-performance motor with no coil in the rotor and a coil as the excitation source. In this paper, a new type of SWFFS machine with a Y-shaped structure is proposed for …

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Adaptive Control Strategy for VSG Parameters Based on Direct-Drive Wind Turbine System

Guishu Zhao, Xingshuo Li, Qinjie Zhang, Shuye Ding

The penetration of power electronics in wind turbine generation systems is gradually increasing and leads to frequency stability problem. However, the traditional wind turbine system lack the inertia that is inherent in traditional synchronous generator (SG), making it challenging to maintain stability …

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Characteristic Analysis of Three-Phase Interleaved Staggered Parallel DCDC Converter for Electric Vehicle

Qinjie Zhang, Guishu Zhao, Ziqiang Zhu, Kai Ni

Recently, meanwhile the electric vehicle industry is increasingly becoming the focus of attention, the performance of power electronic switching devices needs to be continuously improved. The DC/DC converter's complex structure makes it difficult to establish a mathematical analysis model and ensure controllability …

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Electromagnetic Performance Analysis of Dual-Three-Phase Dual-Rotor Flux-Switching Permanent Magnet Machines

Yizhi Chen, Guishu Zhao, Zhengliang Li, Zhe Chang et autres

In this paper, a novel dual-three-phase dual-rotor flux-switching permanent magnet (PM) (DRFSPM) machine, building upon conventional FSPM machines, is proposed, where the stator is equipped with dual PMs and dual armature windings, enabling it to operate in various working modes and provide …

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Investigation of Winding Configurations and Their General Model in Doubly Salient Reluctance Machines

Hao Hua, Guishu Zhao, Wei Hua

Three winding configurations of classic doubly salient reluctance machines (DSRMs) are investigated, and a general winding model is established to identify their slot pitch angle, star plot of flux-linkage phasors, winding factor, and so on. Consequently, the analytical comparisons of conventional DSRMs …

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Fault operation analysis of a novel dual-three-phase dual-rotor flux-switching permanent magnet machine

Guishu Zhao, Zhe Chang, Zhengliang Li, Yuheng Zhou et autres

In this paper, based on the conventional flux-switching permanent magnet (PM) (FSPM) machine, a novel dual-three-phase dual-rotor FSPM machine with PMs of NS layout (NS-DRFSPM) is proposed. The stator of the proposed NS-DRFSPM machine is equipped with dual PMs and dual armature …

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