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steering; permanent magnet synchronous motor; volume control; neural network; self-adaptation control; double sliding mode control 力矩与角位移传递特性是转向系统重要的性能指标,直接关系到汽车的舒适性,操纵稳定性和行车安全.助力转向(power steering,PS)控...高和"路感"清晰等独特优点,是中,高级乘用车和各种大型车辆转向系统的最佳实现方案[11-12].为提升转向系统性能指标,充分发挥其对汽车操纵稳定性的作用,在电动液压助力转向系统的基础上,将PS与AFS集成于双伸缩缸转向器,结合永磁同步电机(permanent magnet synchronous motor,PMSM)动态特性好和控制精度高等优点及齿轮泵结构简单,抗污染能力强等特点,设计了一种新型......
); passive; permanent magnet synchronous generator; stand-alone; wind power generation 离网型风力发电系统(SWPGS)具有成本低,应用灵活,维护简便等优点,近年来被越来越多地应用于牧区,林区,通讯基站,气象站,海岛及边防哨所等场所[1-6].SWPGS一般采用定浆距变速风力机.然而当风速变化时,变速风力机不能持... tracking control for permanent magnet direct drive wind energy conversion systems[J]. Energies, 2012, 5(5): 1398-1412. [17] DATTA R, RANGANATHAN V T. A method of tracking the peak power points......
words:metal materials; permanent magnet; Pr-based bonded magnets; melt spinning; magnetic properties; rare earths; [全文内容正在添加中] ......
, China) Abstract: Based on the sliding mode theory, a new control system of permanent magnet synchronous motor was designed. It used a new sliding mode controller to replace the traditional one and PID one.... According to the result, this design can decrease the noise signals effectively. Key words: permanent magnet synchronous motor; sliding mode variable structure; space vector pulse width modulation (SVPWM......
AZ61镁合金电磁搅拌的研究及力场分析 金俊泽1,郝海1,房灿峰1,张兴国1,季首华1 (1.大连理工大学,辽宁,大连,116024) 摘要:采用永磁体搅拌的方法制备了AZ61镁合金,对其组织和腐蚀性能进行了研究.以电磁场和磁流体动力学原理为基础,分析了旋转永磁体磁场内液态金属的受力.结果表明:液态金属在永磁体搅拌过程中,受到大小和方向周期变化的径向力和切向力;在这一效果(即电磁振荡)的作用下,凝固组织发生变化,进而影响到基体的腐蚀性能. 关键词:永磁体; 电磁搅拌; 镁合金; permanent magnet; electromagnetic stirring; magnesium alloy; [全文内容正在添加中] ......
Anisotropic corrosion behavior of sintered(Ce0.15Nd0.85)30FebalB permanent magnetsXiaoning Shi,Minggang Zhu,Dong Zhou,Zheng Jing,Meiling Zhang,Wei LiDivision of Functional Material, Central Iron...⊥)in the(Ce0.15Nd0.85)30FebalB dual main phase magnet was studied. With the addition of Ce,the volume fraction of RE-rich phase shown in the backscattered electron(BSE) images is basically approximate on the two......
Anisotropic corrosion behavior of sintered(Ce0.15Nd0.85)30FebalB permanent magnetsXiaoning Shi,Minggang Zhu,Dong Zhou,Zheng Jing,Meiling Zhang,Wei LiDivision of Functional Material, Central Iron...⊥)in the(Ce0.15Nd0.85)30FebalB dual main phase magnet was studied. With the addition of Ce,the volume fraction of RE-rich phase shown in the backscattered electron(BSE) images is basically approximate on the two......
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An Effort for Improving Transport Efficiency of Plasma in Acurved Magnet Filter LIU You-ming1,CHU P K2,LI Liuhe1,Hu Yawei1,CAI Xun1,XU Ming1 (1.School of materials science and technology, Shanghai... current and ion density had obviously improvement . The result proved that this method could improve the ion saturation current and ion density. 关键词:curved magnet filter; Langmuir probe; ion......
合实现聚磁,以轴向充磁环形磁体内径构建分选空间,同时获得了较大的分选空间和高磁场强度.设计了多面挤压装配夹具及装配工艺.在直径29.2mm分选空间上测得最高场强可达1.3T;Magnet数值仿真证明磁滤器磁路设计达到了设计要求,对极弱磁性煤系黄铁矿粉体的直接分选实验表明,该磁滤器用于分选弱磁性粉体效果显著. 关键词:永磁磁滤器; 轴向磁体; 径向磁体; 磁路; 装配; permanent magnetic filter; axial magnet; radial magnet; magnetic circuit; assembling; [全文内容正在添加中] ......
