- null vector
- zero vector
- zero-vector
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零矢量的英文
例句与用法
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- By analyzing the basic principle of voltage space vector pwm , a method is proposed to choose the zero vectors dynamically according to the power factor angle of the load and the concept of the lag angle of non - switching sectors
在分析了空间矢量pwm基本原理的基础上，提出了一种根据负荷功率因数角动态分配零矢量的方法，并引入了不开关扇区滞后角的概念。 - A variable - speed dtc pmsm system is set up to verify the dtc theory in pmsm , that is to control the toque by controlling the torque angle of motor if the stator flux linkage keeps constant . this paper points out the function of the space voltage vector by which the torque angle can be changed according to the need of torque of the motor
主要作了以下开创性的工作：系统地阐述了永磁同步电机直接转矩控制理论，发展了原有的控制理论，明确了空间电压零矢量在控制系统中的重要作用? ?保持电机转矩输出，减小转矩脉动，据此提出了包括零矢量的新型控制方法。 - People can easily design the hysteresis current control hardware circuit , but the switching frequency is variable which makes us difficult the design the output filter , moreover the output waveform is not good . the space vector modulation techniques , by selecting the zero vector properly , it can reduce the harmonic content of the output voltage , so it has become a popular control method
滞环电流控制的硬件电路设计简单,但存在开关频率不固定,输出滤波器设计困难,输出波形质量差,空间矢量控制( svm )技术具有较高的电压利用率,且通过对零矢量的合理控制可以降低谐波含量或降低开关损耗,因此是一种较好的控制方法。 - In the control software , the object - oriented method is used for doing system analysis and study . furthermore , the message - driven mechanism is used in the control software research and design . the instantaneous zero vector inserting space vector pwm theory is adopted to control the permanent magnet synchronous machine as the driver motor in the control software
软件采用面向对象的程序设计方法对系统进行分析与研究，将消息驱动机制应用于控制软件的设计和开发之中，在控制软件中采用瞬时零矢量插入磁链轨迹法(电压空间矢量法)来控制永磁同步电机。