The (frequency) converter (adopted) multilevel technology with cells series, which could obtain stepped SPWM waveforms, and could drive ordinary motor directly with no output filter.
该变频器采用单元串联多电平技术，可以得到阶梯SPWM波形，无需输出滤波器，可直接驱动普通电动机。
Multilevel converter is the key technology in the research of power electronics.
多电平变换器是电力电子研究领域的核心技术之一。
The technology of multilevel is a usual way to solve this problem.
多电平技术是解决这一问题的常用方法。
In recent years, multilevel power conversion technology has been becoming hot point in power electronic research due to extensive outlook in high power application.
近年来，多电平功率变换技术因其在高压大功率应用场合的广阔前景，已成为电力电子领域的研究热点。
The paper describes the system structure, control theory and its characteristic of the advanced drive device of the multilevel configuration control technology.
介绍了当今最先进的多电平结构的传动系统的组成结构、控制原理及主要特点。
Multilevel laser power modulation is a key technology in multilevel optical data storage systems based on photochromism.
多阶激光功率调制是光致变色多阶光数据存储的一项核心技术。
Using the technology O-O, a multilevel inherited product model based numeralization is presented.
在此基础上，利用面向对象技术，给出了多级继承的数字化产品模型。
Two approaches are proposed for multilevel storage based on phase change technology.
提出两种实现相变存储器多值存储的方法。
Multilevel converter technology has been mainly used for voltage-source inverters (VSI) by now, very few literatures research on current source inverter (CSI).
目前对电压型变流器(VSI)的研究很多，对电流型变流器(CSI)的研究还刚处于起步阶段。
Multilevel converter technology has been mainly used for voltage-source inverters (VSI) by now, very few literatures research on current source inverter (CSI).
目前对电压型变流器(VSI)的研究很多，对电流型变流器(CSI)的研究还刚处于起步阶段。
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