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。
The paper describes the system structure, control theory and its characteristic of the advanced drive device of the multilevel configuration control technology.
叙述了一种智能数字电平分析仪的电路原理、各部分电路的信号处理过程以及系统的软件设计，给出了实现本产品所需的主要元器件及它们的主要参数。
The principle of the circuit, the procedure of signal processing in each part of the circuit and the design of system software, in a intelligent digital level analyzer, have been presented in detail.
多电平换流器是解决这些问题的有效方法，是今后高压大功率系统中换流器选择的主要方案。
Multilevel converter is an effective way to solve these problems above. And it will be the main program in the high-voltage and high-power system.
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