Based on the method of SVPWM, various forms of phase voltage waveforms are generated by adjusting the duty time of the two zero vectors and the duty order of every vector.
在空间电压矢量形成PWM波的基础上，通过两个零矢量作用时间的不同分配及调节各矢量作用顺序，形成了不同形式的相电压波形。
This paper mainly describes the amplitude and phase errors caused by zero-order holder and the error caused by finite word length of D/A, and computer simulation test of D/A error is also introuced.
针对零阶保持器引起的幅度误差和相位误差，以及D/A转换器有限字长引起的误差进行了较为详细的分析，并进行了D/A误差仿真试验。
In order to overcome the disadvantage of the single phase passing zero control in the reactive power compensation device, fuzzy control is put forward in this paper.
针对目前无功补偿装置中采用的单相过零投切方法存在的缺点，本文提出采用模糊控制的方法。
An adaptive zero-phase tracking control algorithm is developed, and with which the servo system is able to track accurately a given non-circular high order special curves.
提出了零相位跟踪控制算法，使控制系统对给定非国特殊曲线具有很高的跟踪精度，从而保证了非圆轴类表面磨削加工精度。
A new method based on calculating approximate entropy of transient zero-module current is presented in order to locate the single phase grounding fault in non-solidly earthed network.
提出一种通过计算暂态零模电流近似熵确定小电流接地故障区段的新方法。
A new method based on calculating approximate entropy of transient zero-module current is presented in order to locate the single phase grounding fault in non-solidly earthed network.
提出一种通过计算暂态零模电流近似熵确定小电流接地故障区段的新方法。
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