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无轴承永磁同步电机 2

永磁同步电机 2

解耦控制 2

超导应用 2

中性原子量子计算 1

交流永磁同步电机；滑模控制器；扩张状态观测器；鲁棒控制；运动控制 1

低温超导材料；高温超导材料；超导线带材；制备技术 1

先兆预测 1

光量子计算 1

冷原子绝对重力探测 1

分布式量子计算 1

反馈线性化 1

囚禁离子量子计算 1

失超检测 1

工程成就 1

带传动 1

拓扑量子计算 1

数字信号处理器 1

数字信号处理器（DSP） 1

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Magnetic confinement fusion: a brief review

Chuanjun HUANG, Laifeng LI

《能源前沿（英文）》 2018年第12卷第2期页码 305-313 doi: 10.1007/s11708-018-0539-1

摘要： Fusion energy is considered to be the ultimate energy source, which does not contribute to climate change compared with conventional fossil fuel. It is massive compared with unconventional renewable energy and demonstrates fewer safety features compared with unconventional fission energy. During the past several decades, never-ceasing efforts have been made to peacefully utilize the fusion energy in various approaches, especially inertial confinement and magnetic confinement. In this paper, the main developments of magnetic confinement fusion with emphasis on confinement systems as well as challenges of materials related to superconducting magnet and plasma-facing components are reviewed. The scientific feasibility of magnetic confinement fusion has been demonstrated in JET, TFTR, JT-60, and EAST, which instigates the construction of the International Thermonuclear Experimental Reactor (ITER). A fusion roadmap to DEMO and commercial fusion power plant has been established and steady progresses have been made to achieve the ultimate energy source.

关键词： fusion energy magnetic confinement tokamak structural material superconducting magnet

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舰船电力系统用1MJ高温超导储能磁体设计研究

戴陶珍,范则阳,李敬东,唐跃进,程时杰,潘垣

《中国工程科学》 2004年第6卷第1期页码 53-56

摘要：

介绍了舰船电力系统用的1MJ螺管型高温超导储能磁体的设计优化步骤，给出了用Bi-2223超导带进行1MJ磁体线圈的设计和优化结果，分析了高温超导体的各向异性对磁体临界电流的影响，讨论了储能容量一定的多螺管磁体系统在漏磁、储能密度和所需超导线材方面的变化。

关键词：超导磁储能系统高温超导体磁体设计

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强电用超导材料的发展现状与展望

张平祥,闫果,冯建情,马衍伟,朱佳敏,陶伯万,蔡传兵

《中国工程科学》 2023年第25卷第1期页码 60-67 doi: 10.15302/J-SSCAE-2023.01.004

摘要：

超导材料具有常规材料不具备的零电阻、完全抗磁性等宏观量子现象，是典型的量子材料。在强电应用领域，使用超导材料可以实现常规技术无法实现的超强磁场、大容量储能等诸多颠覆性技术，因此，强电用超导材料制备技术一直是国际高技术竞争前沿。本文通过梳理国内外强电用超导材料及其制备技术的发展现状，系统分析和阐明了包括低温超导材料NbTi、Nb3Sn和高温超导材料YBCO涂层导体、Bi-2223带材、Bi-2212线材以及MgB2线材等实用化超导材料在强电应用领域的发展趋势。分析我国强电用超导材料发展存在的问题，我国需要以开发出面向不同强电应用需求的高性能超导材料体系为基础，实现超导材料和强电应用产品的协同发展，推动强电用超导材料制备技术和应用技术的创新水平提升和产业化规模。研究建议，通过国家层面组织“产学研用”联合攻关，实现低温超导材料产业升级，突破高温超导材料批量化制备关键技术的发展思路，实现强电用超导材料的快速发展和应用。

关键词：低温超导材料；高温超导材料；超导线带材；制备技术

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超导电力装置失超检测的基础研究

喻小艳,李敬东,唐跃进

《中国工程科学》 2003年第5卷第10期页码 73-77

摘要：

超导电力装置的失超会影响超导电力设备的运行和安全，是超导电力设备技术实用化有待深入研究的一个重要问题。对国内外通用的超导装置失超检测方法进行了分析，并根据电力系统中超导装置失超检测的特点，对高温超导线材在不同幅值的动态电流作用下的失超特性进行了试验研究，通过对试验数据的分析，对高温超导线材的失超特性有了较精细的理解，并在此基础上提出了超导电力装置失超先兆检测及其失超保护设计的新概念。

关键词：超导装置失超检测超导电力系统先兆预测

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Structure optimization for magnetic equipment of permanent magnet retarder

Bingfeng JIAO, Desheng LI, Yunkang SUI, Lezhi YE

《机械工程前沿（英文）》 2010年第5卷第4期页码 442-445 doi: 10.1007/s11465-010-0112-z

摘要： The main purpose of this research is to perform a magnetic analysis on the magnetic equipment of permanent magnet retarder (PMR) and optimize the structure of magnetic equipment with the commercial FEM software ANSYS and its design optimization module. The FEM model is built as an axisymmetric model according to the characteristics of the structure of magnetic equipment. Using this model, the magnetic field distribution and magnetic force are calculated by ANSYS. The mathematical model of structure optimization is also built. The design variables are structural parameters including the dimensions of permanent magnets and magnetic yoke, and the objective function is the magnetic force. The unconstrained optimization model takes the maximum value of magnetic force as the objective. A first-order optimization method is used to determine the optimum design of this problem. The optimization process works entirely with the ANSYS parametric design language (APDL). The design tools are used to understand design space and the behavior of the dependent variables. It is shown that designing a structure with the ANSYS optimization module and its design tools is an effective means to improve the structure.

关键词： optimization ANSYS permanent magnet retarder numerical simulation

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Three-dimensional electromagnetic analysis and design of permanent magnet retarder

Lezhi YE, Desheng LI, Bingfeng JIAO

《机械工程前沿（英文）》 2010年第5卷第4期页码 438-441 doi: 10.1007/s11465-010-0111-0

摘要： An eddy current retarder for vehicles generates much heat when it works continuously, which leads to serious decline in braking torque. This paper proposes a novel permanent magnet retarder (PMR) for vehicles, whose cooling system connects with engine cooling-water. A three-dimensional finite element model is developed to model the electromagnetic behavior of a permanent magnet retarder under a constant speed. The magnetic field and eddy current field in PMR are numerically solved by a finite element method. By accounting for the nonlinear permeability of the rotor and the weakened effect in the magnetic field that is generated by the eddy current magnetic field, the calculation accuracy of air-gap magnetic field is enhanced. Experiment shows that the temperature of the retarder is less than 150°C, and the braking torque keeps the hard characteristics curve. The calculated air-gap magnetic flux density is fairly good agreement with the measured one.

关键词： auxiliary brake permanent magnet retarder water-cooling finite element method

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Modeling and control of a permanent magnet synchronous generator dedicated to standalone wind energy

Louar FATEH,Ouari AHMED,Omeiri AMAR,Djellad ABDELHAK,Bouras LAKHDAR

《能源前沿（英文）》 2016年第10卷第2期页码 155-163 doi: 10.1007/s11708-016-0410-1

摘要： The interest for the use of renewable energies has increased, because of the increasing concerns of the environmental problems. Among renewable energies, wind energy is now widely used. Wind turbines based on an asynchronous generator with a wound rotor present the inconvenience of requiring a system of rings and brooms and a multiplier, inferring significant costs of maintenance. To limit these inconveniences, certain manufacturers developed wind turbines based on synchronous machines with large number of pairs of poles coupled directly with the turbine, avoiding using the multiplier. If the generator is equipped with permanent magnets, the system of rings and brooms is eliminated. The control of the permanent magnet synchronous generator (PMSG) can be affected with the implementation of various techniques of control. This paper presented a new approach mainly based on the control strategy of power production system based on the PMSG. In fact, a mathematical model that simulates the Matlab chain was established with the introduction of control techniques, such as direct control of the torque (DTC) to control the load side converter (LSC), the control of the speed of the turbine and the DC-bus voltage ensured by PI regulators. To show the performance of the correctors used, some simulation results of the system were presented and analyzed.

关键词： wind turbine permanent magnet synchronous generator (PMSG) converter proportional-integral (PI) control direct control of the torque (DTC) regulation

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System construction of a four-side primary permanent-magnet linear motor drive mechanical press

Jintao LIANG, Zhengfeng MING, Peida LI

《机械工程前沿（英文）》 2020年第15卷第4期页码 600-609 doi: 10.1007/s11465-020-0597-z

摘要： A primary permanent-magnet linear motor (PPMLM) has a robust secondary structure and high force density and is appropriate for direct-drive mechanical press. The structure of a four-side PPMLM drive press is presented based on our previous research. The entire press control system is constructed to realize various flexible forming processes. The control system scheme is determined in accordance with the mathematical model of PPMLM, and active disturbance rejection control is implemented in the servo controller. Field-circuit coupling simulation is applied to estimate the system’s performance. Then, a press prototype with 6 kN nominal force is fabricated, and the hardware platform of the control system is constructed for experimental study. Punch strokes with 0.06 m displacement are implemented at trapezoidal speeds of 0.1 and 0.2 m/s; the dynamic position tracking errors are less than 0.45 and 0.82 mm, respectively. Afterward, continuous reciprocating strokes are performed, and the positioning errors at the bottom dead center are less than 0.015 mm. Complex pulse trajectories are also achieved. The proposed PPMLM drive press exhibits a fast dynamic response and favorable tracking precision and is suitable for various forming processes.

关键词： mechanical press direct drive primary permanent-magnet linear motor (PPMLM) servo system active disturbance rejection control (ADRC) prototype experiment

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Optimization design of an interior permanent-magnet synchronous machine for a hybrid hydraulic excavator

Qi-huai CHEN,Qing-feng WANG,Tao WANG

《信息与电子工程前沿（英文）》 2015年第16卷第11期页码 957-968 doi: 10.1631/FITEE.1500056

摘要： A hybrid power transmission system (HPTS) is a promising way to save energy in a hydraulic excavator and the electric machine is one of the key components of the system. In this paper, a design process for permanent-magnet synchronous machines (PMSMs) in a hybrid hydraulic excavator (HHE) is presented based on the analysis of the working conditions and requirements of an HHE. A parameterized design approach, which combines the analytical model and the 2D finite element method (FEM), is applied to the electric machine to improve the design efficiency and accuracy. The analytical model is employed to optimize the electric machine efficiency and obtain the stator dimension and flux density distribution. The rotor is designed with the FEM to satisfy the flux requirements obtained in stator design. The rotor configuration of the PMSM employs an interior magnet structure, thus resulting in some inverse saliency, which allows for much higher values in magnetic flux density. To reduce the rotor leakage, a disconnected type silicon steel block structure is adopted. To improve the air gap flux density distribution, the trapezoid permanent magnet (PM) and centrifugal rotor structure are applied to PMSM. Demagnetization and armature reactions are also taken into consideration and calculated by the FEM. A prototype of the newly designed electric machine has been fabricated and tested on the experimental platform. The analytical design results are validated by measurements.

关键词： Analysis Design Hybrid hydraulic excavator (HHE) Finite element method (FEM) Interior permanent-magnet (PM) motor PM synchronous machine (PMSM)

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Design method and magnetic field analysis of axial-magnetized permanent magnet micromotor

YANG Jiewei, WU Yihui, JIA Hongguang, ZHANG Ping, WANG Shurong

《机械工程前沿（英文）》 2007年第2卷第3期页码 318-322 doi: 10.1007/s11465-007-0056-0

摘要： To investigate the impact of size on its performance in designing an axial-magnetized permanent magnet micro motor, the finite element method is adopted to simulate the magnetic field of the dual rotor motor, and the flux density wave form distributed in the airgap is obtained. The influence of the external dimensions, pole numbers and magnet thicknesses of the rotor, and the airgap distances on the flux density, are analyzed and analytical results are given. With the increase of the airgap distance, the flux density under more poles reduces more quickly than under fewer poles. With the increase of the magnet thickness, the flux density is a rising curve, and after the magnet thickness attains a certain point, the flux density is almost a constant. While reducing the diameter of the rotor, the decrease of the flux density slows down as magnet thickness is reduced. To avoid having a seriously distorted waveform, the distance between inner and outer radii of the rotor must be larger than 1.5 millimeter. Results of the magnetic field analysis can guide a microminiaturization of the motor. Moreover, the results are analyzed theoretically and the simulated values are almost consistent with the experimental values.

关键词： axial-magnetized permanent diameter constant certain magnetic

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Robust nonlinear control via feedback linearization and Lyapunov theory for permanent magnet synchronous

Ridha CHEIKH, Arezki MENACER, L. CHRIFI-ALAOUI, Said DRID

《能源前沿（英文）》 2020年第14卷第1期页码 180-191 doi: 10.1007/s11708-018-0537-3

摘要： In this paper, the method for the nonlinear control design of a permanent magnet synchronous generator based-wind energy conversion system (WECS) is proposed in order to obtain robustness against disturbances and harvest a maximum power from a typical stochastic wind environment. The technique overcomes both the problem of nonlinearity and the uncertainty of the parameter compared to such classical control designs based on traditional control techniques. The method is based on the differential geometric feedback linearization technique (DGT) and the Lyapunov theory. The results obtained show the effectiveness and performance of the proposed approach.

关键词： permanent magnet synchronous generator wind energy conversion system stochastic differential geometric feedback linearization maximum power point tracking Lyapunov robust control

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Multi-objective design optimization of a large-scale direct-drive permanent magnet generator for wind

Arash Hasssanpour ISFAHANI,Amirhossein Haji-Seyed BOROUJERDI,Saeed HASANZADEH

《能源前沿（英文）》 2014年第8卷第2期页码 182-191 doi: 10.1007/s11708-014-0320-z

摘要： This paper presents a simultaneous multi-objective optimization of a direct-drive permanent magnet synchronous generator and a three-blade horizontal-axis wind turbine for a large scale wind energy conversion system. Analytical models of the generator and the turbine are used along with the cost model for optimization. Three important characteristics of the system i.e.,the total cost of the generator and blades, the annual energy output and the total mass of generator and blades are chosen as objective functions for a multi-objective optimization. Genetic algorithm (GA) is then employed to optimize the value of eight design parameters including seven generator parameters and a turbine parameter resulting in a set of optimal solutions. Four optimal solutions are then selected by applying some practical restrictions on the front. One of these optimal designs is chosen for finite element verification. A circuit-fed coupled time stepping finite element method is then performed to evaluate the no-load and the full load performance analysis of the system including the generator, a rectifier and a resistive load. The results obtained by the finite element analysis (FEA) verify the accuracy of the analytical model and the proposed method.

关键词： permanent magnet synchronous generator wind turbine direct-drive multi-objective optimization cost mass annual energy output finite element analysis (FEA)

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超导磁储能系统在舰船电力系统中的应用前景及其关键课题

戴陶珍,范则阳,李敬东,唐跃进,程时杰

《中国工程科学》 2002年第4卷第6期页码 16-19

摘要：

现代舰船电力系统容量急剧增大，全电力舰船的实现、敏感负荷和新概念武器的引入使舰船电力系统面临着一系列挑战。介绍了超导磁储能系统（SMES）作为一种新型储能设备的应用研究进展，分析了SMES在舰船电力系统中的潜在应用，最后提出了舰船电力系统中应用SMES的关键课题。

关键词：舰船电力系统超导磁储能系统（SMES）超导应用

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有定子径向通风孔的大型永磁同步发电机的转矩特性 Article

He HAO,Wei-zhong FEI,Dong-min MIAO,Meng-jia JIN,Jian-xin SHEN

《信息与电子工程前沿（英文）》 2016年第17卷第8期页码 814-824 doi: 10.1631/FITEE.1500238

摘要：在此文章中，我们研究了应用于海上风电且定子具有径向通风孔的大型低速直驱型永磁同步发电机的转矩特性。首先在二维有限元分析（FEA）下保持相同的定子结构，通过对磁体形状优化设计改善永磁同步发电机的转矩特性。转子分段斜极技术用于抑制机械容差和缺陷的影响，并进一步提高了电机的转矩特性。全面的三维有限元分析是用来准确地评估定子径向通风孔和转子分段斜极对电机转矩特性的总体影响。通过综合的三维有限元分析，我们发现定子具有径向通风孔对转矩特性的影响，例如电机在转子采用和不采用分段斜极技术在转矩脉动和平均扭矩的特性。结果表明，定子具有径向通风孔时不仅会降低电机的平均转矩也会增加转矩脉动。此外，当电机在某些负载情况下，具有分段斜极转子的电机尽管齿槽转矩会减少但是转矩脉动反而可能增加。

关键词：永磁同步发电机；径向通风孔；转矩脉动；分段斜极；磁体形状优化；有限元分析；风电

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基于新型拓扑Halbach阵列的PCB定子无铁心轴向磁通电机设计 Regular Papers

Xiao-yuan WANG, Xiang LI, Chun-peng LI, Si-jia XU, Le-tao LING

《信息与电子工程前沿（英文）》 2019年第20卷第3期页码 414-424 doi: 10.1631/FITEE.1700345

摘要：针对印刷电路板（PCB）定子轴向磁通永磁电机特点，提出一种新型拓扑Halbach永磁体阵列，设计并分析应用该永磁体阵列的PCB定子轴向磁通永磁电机。与传统无铁心轴向磁通永磁电机相比，在相同尺寸、同等永磁体用量下，该新型拓扑Halbach永磁体阵列PCB定子轴向磁通永磁电机具有更高气隙磁密及每极磁通，可获得更高空载反电势，同时有效降低漏磁，使气隙磁密更接近正弦波，提升了电机整体性能。有限元分析结果和样机对比实验验证了该新型拓扑Halbach永磁体阵列PCB定子电机的合理性和有效性，为PCB定子轴向磁通永磁电机设计提供了参考依据和工程应用价值。

关键词：轴向磁通电机；印制电路板；Halbach永磁体阵列；有限元法

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标题作者时间类型操作

Magnetic confinement fusion: a brief review

Chuanjun HUANG, Laifeng LI

期刊论文

舰船电力系统用1MJ高温超导储能磁体设计研究

戴陶珍,范则阳,李敬东,唐跃进,程时杰,潘垣

期刊论文

强电用超导材料的发展现状与展望

张平祥,闫果,冯建情,马衍伟,朱佳敏,陶伯万,蔡传兵

期刊论文