1) iron concentrate
弱磁精矿
2) field weakening
弱磁
1.
Based on the analysis of the field weakening operation of asynchronous motor, a maximum torque control method was proposed for the field weakening of asynchronous motor to satisfy the higher torque output of motor driven system in electric vehicle.
对异步电机的弱磁运行作了深入分析,给出了弱磁运行时最大转矩控制的实现方法,可满足电动汽车对电机驱动系统的高转矩输出要求,实现方法简单可靠。
2.
A novel field weakening scheme for electric vehicles induction motor drive system is presented, which gives a solution to torque decreasing problem during field weakening region.
针对弱磁阶段电机转矩下降的问题,在弱磁阶段电压控制策略的基础上,通过适当的选择漏感,提出了一种简化的电压控制策略。
3) low intensity magnetic
弱磁
1.
Through the research,the dephosphorizing process of low intensity magnetic-high intensity magnetic-shacking table separation was selected.
通过工艺研究,最后选择弱磁—强磁—摇床精选的工艺流程,加强矿物的细磨,是铁矿降磷和提高精矿指标的重要措施。
2.
By the research,the dephosphorizing process of low intensity magnetic-high intensity magnetic shacking table separation is selected.
通过工艺研究,最后选择弱磁-强磁-摇床精选的工艺流程,加强矿物细磨是铁矿降磷和提高精矿指标的重要措施。
4) Flux-weakening
弱磁
1.
Parameter influence on flux-weakening performance of IPM;
永磁电机的弱磁性能与电机参数的关系
2.
Permanent magnet brushless DC motors (PM BLDCM)have narrow flux-weakening operation region,which restrict to use for high speed applications and traction systems.
分析了造成永磁无刷直流电机弱磁运行区间过窄的一个关键因素——逆变电路环流;提出了一种新型驱动拓扑电路,此新型电路结构在传统三相逆变桥的基础上,在每个半桥臂下方反向串联一个相同的功率器件,同步控制其通断,达到消除逆变环流的效果。
3.
Considering the flux-weakening application, effect of the d-axis inductance is described, whilst the influence of the rotor pole height and width on the d-axis inductance and flux-weakening capability is analyzed with finite element method (FEM).
介绍了三相6/5极永磁开关磁链电机的结构特点和运行原理,并在弱磁扩速原理的基础上说明了直轴电感在电机弱磁扩速中的作用,通过有限元分析研究了不同转子齿高、齿宽对电机直轴电感和弱磁能力等性能的影响。
5) field-weakening
弱磁
1.
In vector-controlled PM brushless ac drives, the d-axis and q-axis currents are controlled according to optimal current profiles derived from a mathematical model, usually for maximum torque per ampere in the constant torque operating range and maximum power in the field-weakening range.
在矢量控制的永磁同步电机控制系统中,d轴和q轴电流的控制一般是根据电机数学模型推导的最佳性能轨迹,如恒力矩区的每安培电流最大力矩控制和弱磁区的最大功率控制。
2.
In addition,the field-weakening method is proposed.
介绍了间接转矩控制的基本原理,通过一种新型的全阶状态观测器能同时准确观测定子磁链和转子磁链,并加入弱磁控制算法,将间接转矩控制扩展到全速度范围。
3.
A novel field-weakening scheme for brushless DC motors based on instantaneous reactive power theory is introduced in this paper.
介绍了一种基于瞬时无功功率理论的永磁无刷直流电动机弱磁调速新策略,通过控制无功分量s/ω达到弱磁的效果。
6) flux weakening
弱磁
1.
Flux Weakening Technology Study on Permanent Magnet Brushless D.C.Motor;
永磁无刷直流电机弱磁技术研究
2.
The structural characteristic of permanent magnet synchronous motor that adapted for flux weakening operation was analyzed.
分析了适合弱磁运行的永磁同步电动机的结构特点,从本体和控制两个方面介绍了永磁同步电动机的弱磁方法,指出各种方法的优缺点。
3.
A permanent magnet synchronous motor (PMSM) with controllable exciting magnetic flux is presented which provides a new approach for solving the problem of flux weakening for PMSM.
为解决永磁同步电动机弱磁问题,提出了一种能够跟随转速自动调节励磁磁阻的新型永磁同步电动机。
参考词条
补充资料：弱磁场磁选设备
弱磁场磁选设备
low-intensity magnetic separator
ruoeiehang eixuan shebe-弱磁场磁选设备(low一intensity magnetieseparator)磁极表面磁感应强度在。.ZT以下的磁选设备，弱磁场磁选设备用于分选比磁化率大于38。。Xlo一sm3/kg的强磁性扩石和物料。这类设备有磁滑轮、筒式磁选机、磁力脱水槽等。磁极表面磁感应强度在0.2~。.ST的筒式磁选机属于中磁场磁选机。 (桂展欧)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。