梯形波的英文

• keystone wave
• stepped wave
• trapezoidal wave

• "梯形"英文翻译    ladder-shaped trapezoid; tra ...
• "波"英文翻译    wave
• "阶梯形波导" 英文翻译 :    stepped waveguide
• "速率梯形波" 英文翻译 :    speed trapezoidal wave
• "梯形波形" 英文翻译 :    trapezoid waveform
• "梯形波产生器" 英文翻译 :    trapezoidal generator
• "梯形波发生器" 英文翻译 :    trapezoidal generator; trapezoidal waveform generator
• "水平梯形波发生器" 英文翻译 :    horizontal trapezoid generator
• "梯形波电磁流量计" 英文翻译 :    trapezoidal electromagnetic flowmeter
• "梯形波形板分离器" 英文翻译 :    trapezoid corrugated plate seperater
• "梯形波脉冲电流疗法" 英文翻译 :    trapezoidal impulse current therapy
• "梯形波形板分离器、顶帽" 英文翻译 :    trapezoid corrugated plate seperater
• "梯形波发生器,梯形脉冲发生器" 英文翻译 :    trapezoidal generator
• "梯形" 英文翻译 :    1.(形状像梯子的) ladder-shaped2.[数学] [美国] trapezoid; [英国] trapezium3.ladder type (如滤波、网络等); scalariform◇梯形坝 cipollettic dam; 梯形图 ladder diagram; 梯形尾翼 trapezoid tail; 梯形线 adder track; 梯形堰 cipolletti weir; 梯形翼 [航空] trapezoidal wing; tapered airfoil
• "t形波导" 英文翻译 :    hybrid t; hybrid-t; waveguide tee
• "地形波" 英文翻译 :    mountain waves
• "短形波" 英文翻译 :    square wave
• "方形波" 英文翻译 :    rectangular wave; square wave
• "弓形波" 英文翻译 :    bow waves
• "环形波" 英文翻译 :    circumferential wave; ringwave
• "畸形波" 英文翻译 :    distorted wave; freak wave; wave of distortion
• "矩形波" 英文翻译 :    square wave; rectangular wave
• "球形波" 英文翻译 :    spherical wave
• "扇形波" 英文翻译 :    sectorial wave
• "楔形波" 英文翻译 :    wedge wave

• The ideal bemf waveform of bldcm is trapezoid with 120 ! platform width . in the 120 conduction mode , the stator current is not ideal due to the stator inductance , and the torque ripple occurs
  理想的永磁无刷直流电动机的反电动势的波形是120平顶的梯形波，在三相六状态120导通方式控制下，电流由于电机定子电感的存在而不是理想方波，因此产生了换相转矩脉动。
• The non - ideal bemf waveform of bldcm is often caused by two facts . one is that the platform width of bemf waveform is less than 120 ; the other is the cogging harmonics existed in the bemf waveform
  非理想反电动势波形的无刷直流电机有两种情况，一种是反电动势的梯形波的平顶宽度小于120 ；一种是由于磁场分布受齿槽的影响，反电动势存在齿谐波，使其波形发生畸变。
• To guarantee the validity and speediness insimulation , the back - emf is generated using piecewise linear curves . in the double loop of control system , a pi controller is adopted in the speed loop and a hysteresis current controller is adopted in the current loop
  为保证仿真快速性和有效性,模型采用分段线性法生成梯形波反电动势,系统采用双闭环控制:速度环采用pi控制,电流环采用滞环电流控制。
• Secondly , the effects of the crest width of the back - emf waveform to the torque ripple in the 120 ? conduction mode are analyzed , among which the effects of the advance commutation angle to the torque ripple are quantificationally analyzed for the bldcm drives whose back - emf waveform crest width is less than 120 ? ,
  其次分析了120导通方式下反电动势平顶宽度对转矩脉动的影响，对于平顶宽度小于120电角的非理想梯形波反电动势，定量分析了换相超前角对换相转矩脉动的影响。
• For the bldcm which has a neither sinusoidal nor trapezoidal back - emf , that is , for a general shape back - emf bldcm , this dissertation proposes a novel id = 0 vector control method . by this method , the iq for a constant torque to produce is calculated through coordinate transformation , and the reference iq is tracked by vector control in the dq0 frame
  对于实际反电动势波形既非正弦又非梯形波的无刷直流电动机，提出一种新型的任意波形反电动势无刷直流电动机的i _ d = 0矢量控制方法，通过坐标变换浙江大学博士学位佑文摘要求解产生恒定电磁转矩所需的q轴电流，并在dqo坐标系下通过矢量控制对q轴参考电流进行跟踪。
• For the bldcm which has a general crest width of the back - emf waveform , two kinds of torque ripple conditions when drived by sine - wave current as well as by square - wave current are deduced based on the mathematical models . in addition , a comparison is carried out between these two conditions , which indicates that sinusoidal current driving is more favorable to minimizing the torque ripple when the crest width of the back - emf waveform is less than a certain value
  阐述了抑制齿槽转矩措施对反电动势波形的影响，利用无刷直流电机的数学模型推导并比较了任意平顶宽度梯形波反电动势在正弦波和矩形波两种电流驱动下的电磁转矩脉动情况，得出在梯形波平顶宽度减小到一定数值后采用正弦电流驱动更有利于减小电磁转矩脉动。

• 梯形波的法语：onde trapézoïdale
• 梯形波的日语：ていけいは てい形波