Fengge Zhang
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View article: Nonminimal coupling in light of ACT data
Nonminimal coupling in light of ACT data Open
View article: Direct power control and back-stepping-based direct power control for dual-stator brushless doubly-fed wind power generator
Direct power control and back-stepping-based direct power control for dual-stator brushless doubly-fed wind power generator Open
This paper proposes a novel-structured Lyapunov-based back-stepping direct power control (BS-DPC) for an emerging dual-stator brushless doubly-fed wind power generator (DSBDFWPG). The DSBDFWPG features two coaxial stators (inner/outer) and…
View article: Nonminimal coupling in light of ACT data
Nonminimal coupling in light of ACT data Open
View article: Thermal Analysis of Outer Rotor PMSM Based on Flat Heat Pipe Cooling Method
Thermal Analysis of Outer Rotor PMSM Based on Flat Heat Pipe Cooling Method Open
Heat pipe is a kind of heat transfer element with very high thermal conductivity, which has a good application prospect in high power density driving motors. However, the complicated heat transfer process involves a variety of mechanisms, …
View article: Research on efficient design method of high torque motor with dual airgap hybrid rotor for aircraft engines
Research on efficient design method of high torque motor with dual airgap hybrid rotor for aircraft engines Open
High torque density and high reliability motors have a wide application prospect in aerospace field, so a hybrid rotor and dual stator motor is studied in this paper. Firstly, to address the problem that the difference in power density bet…
View article: Core bacterial communities dominated Purus frumentum biomass under different green manure returning amounts in saline-alkali soil
Core bacterial communities dominated Purus frumentum biomass under different green manure returning amounts in saline-alkali soil Open
View article: Microbiome‐conferred herbicides resistance
Microbiome‐conferred herbicides resistance Open
This article is a Commentary on Hu et al . (2024), 242 : 333–343 .
View article: Cooling Structure Design of High-Speed Permanent Magnet Synchronous Machine With Axial Ventilation Self-Cooling Rotor
Cooling Structure Design of High-Speed Permanent Magnet Synchronous Machine With Axial Ventilation Self-Cooling Rotor Open
In order to address the challenges of high loss density, difficult heat dissipation, and irreversible demagnetization in high temperature of high-speed permanent magnet machine, an innovative cooling structure with axial ventilation and se…
View article: Investigation of winding cooling enhancement and thermal modelling of large‐power high‐torque‐density direct‐drive PMSM
Investigation of winding cooling enhancement and thermal modelling of large‐power high‐torque‐density direct‐drive PMSM Open
Large‐power high‐torque‐density direct‐drive permanent magnet synchronous motors (LHDPMSM) are more and more frequently used to drive ball mills, belt conveyors, scraper conveyors, etc. Aiming at the characteristics of large copper loss an…
View article: Optimization design of stepped rotor type bearingless switched reluctance motor
Optimization design of stepped rotor type bearingless switched reluctance motor Open
In order to solve the problems of small starting torque and large torque ripple existing in traditional 12/14 hybrid stator pole bearingless switched reluctance motor (BSRM), a stepped rotor type BSRM is proposed. The proposed motor not on…
View article: Mathematical model of stepped rotor type 12/14 bearingless switched reluctance motor based on maxwell stress method
Mathematical model of stepped rotor type 12/14 bearingless switched reluctance motor based on maxwell stress method Open
The stator of the stepped rotor type bearingless switched reluctance motor has two kinds of wide and narrow stator teeth. The wide stator teeth provide suspension force, and the narrow stator teeth provide torque, so the decoupling control…
View article: Aggregation pheromones released by nymphs of the stick tea thrips (Dendrothrips minowai): identification and analysis of their potential utility for controlling thrips in tea plantations
Aggregation pheromones released by nymphs of the stick tea thrips (Dendrothrips minowai): identification and analysis of their potential utility for controlling thrips in tea plantations Open
BACKGROUND The stick tea thrips, Dendrothrips minowai Priesner, is one of the most important sucking pests that seriously infest tea plants ( Camellia sinensis ) in China. Obvious D. minowai nymph aggregation behaviors are typically detect…
View article: Activity Patterns, Population Dynamics, and Spatial Distribution of the Stick Tea Thrips, Dendrothrips minowai, in Tea Plantations
Activity Patterns, Population Dynamics, and Spatial Distribution of the Stick Tea Thrips, Dendrothrips minowai, in Tea Plantations Open
The stick tea thrips, D. minowai Priesner (Thysanoptera: Thripidae), is one of the most economically significant thrips pests of tea (Camellia sinensis (L.) O. Ktze.) in China. Here, we sampled D. minowai in tea plantations from 2019 to 20…
View article: Effects of green manure cultivation for aboveground carbon store and returning to the field to ameliorate soil quality in saline alkali soil
Effects of green manure cultivation for aboveground carbon store and returning to the field to ameliorate soil quality in saline alkali soil Open
The utilization of saline-alkali land together with the consideration of the productive value (improving soil productivity) and ecological value (increasing carbon store ability) has rarely been reported. We conducted a field experiment to…
View article: Investigation of a Low-Speed High-Torque-Density Direct-Drive External-Rotor PMSM for Belt Conveyor Application
Investigation of a Low-Speed High-Torque-Density Direct-Drive External-Rotor PMSM for Belt Conveyor Application Open
Aiming at the shortcomings of complex mechanical transmission structure and low efficiency of the existing belt conveyor driven by asynchronous motor, this paper focuses on the investigation of a new type of low-speed high-torque-density d…
View article: A Review on Segmented Switched Reluctance Motors
A Review on Segmented Switched Reluctance Motors Open
The switched reluctance motor (SRM) benefits from its magnet-free nature, robust construction, low cost, flexible controls, and the ability to operate in harsh environments such as high temperatures and high pressure. It has received incre…
View article: Characteristics Evaluation of a Segmental Rotor Type Switched Reluctance Motor with Concentrated Winding for Torque Density and Efficiency Improvement
Characteristics Evaluation of a Segmental Rotor Type Switched Reluctance Motor with Concentrated Winding for Torque Density and Efficiency Improvement Open
With the rapid development of power electronic techniques and the increasing cost of permanent magnets (PMs) materials, switched reluctance motors (SRMs) have recently gained more attention. However, traditional SRMs have a relatively low …
View article: Study on Calculation Model of High Speed Machine Silicon Steel Sheet Electromagnetic Characteristics Considering Magnetic, Stress and Temperature Condition
Study on Calculation Model of High Speed Machine Silicon Steel Sheet Electromagnetic Characteristics Considering Magnetic, Stress and Temperature Condition Open
High-speed motor has the characteristics of high frequency, high temperature, and more stress, resulting in the field distribution inside the motor being complicated. To better study the electromagnetic characteristics of silicon steel she…
View article: Mathematical model of a novel 12/14 conical bearingless switched reluctance motor
Mathematical model of a novel 12/14 conical bearingless switched reluctance motor Open
View article: Evaluation of Selected Plant Volatiles as Attractants for the Stick Tea Thrip Dendrothrips minowai in the Laboratory and Tea Plantation
Evaluation of Selected Plant Volatiles as Attractants for the Stick Tea Thrip Dendrothrips minowai in the Laboratory and Tea Plantation Open
The stick tea thrip (Dendrothrips minowai Priesner) is the main pest thrip in tea (Camellia sinensis) plantations in China, and seriously affects the quality and yield of tea. Plant-derived semiochemicals provide an alternative to pheromon…
View article: Magnetic properties of bilayer nano-stanene-like structure with Ruderman–Kittel–Kasuya–Yoshida coupling
Magnetic properties of bilayer nano-stanene-like structure with Ruderman–Kittel–Kasuya–Yoshida coupling Open
A bilayer nano-stanene-like structure with Ruderman–Kittel–Kasuya–Yoshida (RKKY) coupling described by the Ising model is proposed. The magnetic and thermodynamic properties are studied using the effective-field theory with correlations. T…
View article: Study on performance of low-speed high-torque permanent magnet synchronous motor with dynamic eccentricity rotor
Study on performance of low-speed high-torque permanent magnet synchronous motor with dynamic eccentricity rotor Open
In actual production, errors in manufacturing and assembly may lead to misalignment of the stator and rotor and uneven air gap magnetic density, which affects the running performance of the motor. The influence of rotor dynamic eccentricit…
View article: Magnetic properties optimization of novel composite magnetic materials for HSPMSM with novel composite rotor
Magnetic properties optimization of novel composite magnetic materials for HSPMSM with novel composite rotor Open
View article: Analytical model of mechanical properties of carbon fiber magnetic powder film-level magnetic materials for high-speed motors
Analytical model of mechanical properties of carbon fiber magnetic powder film-level magnetic materials for high-speed motors Open
The speed of high-speed permanent magnet motor has always been restricted by the strength of the rotor. Therefore, this paper proposes a type of magnetic composite rotor suitable for high-speed permanent magnet motors, which can fundamenta…
View article: Design and Analysis of Asymmetric Rotor Pole Type Bearingless Switched Reluctance Motor
Design and Analysis of Asymmetric Rotor Pole Type Bearingless Switched Reluctance Motor Open
Bearingless switched reluctance motor (BSRM) not only combines the merits of bearingless motor (BM) and switched reluctance motor (SRM), but also decreases the vibration and acoustic noise of SRM, so it could be a strong candidate for high…
View article: An efficient multidisciplinary design research for the integrated low speed permanent magnet motor system based on analytical and numerical hybrid analysis
An efficient multidisciplinary design research for the integrated low speed permanent magnet motor system based on analytical and numerical hybrid analysis Open
This paper proposed an efficient high-accuracy multidisciplinary design process for the integrated system of low speed permanent magnet synchronous motor (PMSM). The method combined the analytical models and numerical models together to ge…
View article: Analysis of multi-field coupled air friction loss and temperature field of high-speed permanent magnet machine
Analysis of multi-field coupled air friction loss and temperature field of high-speed permanent magnet machine Open
The high-speed rotation of the high-speed permanent magnet machine (HSPMM) causes high air friction loss. The multi-field calculation of air friction loss is usually unidirectional coupling, so the interaction between temperature and air f…
View article: Message from editors
Message from editors Open
In recent years, 4th Industrial Revolution and Industry 4.0 have swept the world and deeply influenced the development of global industry market. This movement arises wide attention to electric motor drive system which is playing an increa…
View article: Rotor electrical conductivity and eddy current loss analysis of high‐speed permanent magnet machine with a novel composite rotor
Rotor electrical conductivity and eddy current loss analysis of high‐speed permanent magnet machine with a novel composite rotor Open
The high‐temperature rise of rotor permanent magnet (PM) in high‐speed PM machine (HSPMM) is one of the main bottlenecks that limits the development of HSPMM. The main reason for the increase of the PM temperature is the eddy current loss …
View article: Multi‐objective optimisation of the HSPMM rotor based on the multi‐physics surrogate model
Multi‐objective optimisation of the HSPMM rotor based on the multi‐physics surrogate model Open
High‐speed permanent magnetic machine (HSPMM) is attracting more attention due to its high power density, compact size, small rotating inertia, and rapid response capability. However, the design of the HSPMM rotor is a non‐linear, multi‐ph…