Based on the introduction of components and principle of work of frequency modulation system of constant frequency AC power supply, math model of frequency modulation system is established.
在介绍某型恒频交流电源频率调节系统的组成和工作原理的基础上，建立频率调节系统的数学模型。
Based on the work principle of AC motor, the article analyzes the cause and phenomenon of alternating-current motor and puts forward the method of removing shaft current.
根据交流电动机的工作原理，分析讨论其轴电流产生的原因和表象，提出了防止轴电流产生的方法。
Grounded on the work above, a high performance full digital PM AC servo system based on the TMS320F240 is developed, and its monitor control system designed.
在上述工作的基础上，研制开发了一套基于TMS320F240的高性能全数字永磁交流伺服系统，并设计开发了相应的上位机监控软件。
The Ling'ao nuclear power generator should carry out the AC and DC withstand voltage tests to check the insulation performances of the unit after finishing the erection work on site.
岭澳核电发电机安装完成后，需要在现场做交、直流耐压试验，以检验发电机的绝缘特性。
On the basis of analysis of operation performance of AC motor, the harm of harmonic wave of electric net work to electric motor is summarized in the paper.
在分析交流电机工作特性的基础上，阐述了电网谐波对电机的危害。
There is no consensus on the distribution of the AC DCT coefficients till now. In this work, the generalized Gaussian model and the Laplacian model, which are used most widely, were studied.
针对离散余弦变换（DCT）系数分布模型类型存在的异议，研究并比较了拉普拉斯模型和广义高斯模型。
The main circuit configuration of SVG is based on topology configuration of PWM 4-quadrant converter, AC current of PWM converter can work in 4-quadrant, so do SVG.
SVG主电路结构是基于PWM变流器的拓扑结构，PWM交流器可以在四象限运行，所以SVG亦可在四象限运行，从而达到为系统提供无功功率的目的。
The main circuit configuration of SVG is based on topology configuration of PWM 4-quadrant converter, AC current of PWM converter can work in 4-quadrant, so do SVG.
SVG主电路结构是基于PWM变流器的拓扑结构，PWM交流器可以在四象限运行，所以SVG亦可在四象限运行，从而达到为系统提供无功功率的目的。
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