查询词典 cascade amplification

As for the modulation method used to active power filter based on cascade H-bridge converter, the application of phase shifted multicarrier modulation had been reported.

对于级联H桥变流器应用于有源电力滤波器系统中时的调制策略，相移载波PWM调制策略的应用已有报道。

Experimental results prove that the shunt APF system with cascade multilevel converter based on CPS-SPWM can achieve excellent compensation effect even under much lower switching frequency. We can easily get to the conclusion: this method has a perfect prospect in industry application.

通过一系列实验验证了将基于CPS-SPWM技术的级联型多电平变流器应用于APF上能较好地实现对非线性负载引起的谐波及无功污染的补偿，有良好的工业应用前景。

A novel single-phase hybrid cascade asymmetrical multilevel converter is researched in the thesis based on AMC-SMC.

对于AMC-SMC结构，提出了一种新型单相不对称异构混合级联型多电平变换器。

In this paper, a shunt APF topology with cascade multilevel converter based on Carrier Phase Shifted PWM is presented. The systematic analysis of the harmonic and reactive power detection, AC side and DC side control, system parameter design and so on is done. The simulation study is carried out.imulation shows the APF system is of fast dynamic response and good compensation. Theory analysis and experimental system is feasible..

因此，本文将二者结合起来，提出了基于载波相移PWM技术的级联型多电平变流器并联APF系统的电路拓扑结构，并在谐波及无功检测、交直流控制策略和系统参数设计等方面进行了系统的分析，在此基础上进行了仿真研究。

A two-cell single-phase hybrid cascade asymmetrical multilevel converter is researched in the thesis based on AMC-AMC.

组合式不对称混合级联型多电平变换器拓扑的生成方法可以分为两种；同构组合以及异构组合结构。

This approach has the advantages of simple circuit, accurate detection and good robustness. Two kinds of topologies in Active Power Filter have been proposed, including APF based on cascade converter with phase-shifted SPWM technique and APF based on current source multimodular converter with phase-shifted SPWM technique.

本文提出了两种基于相移SPWM技术的并联型有源电力滤波器的拓扑结构：基于相移SPWM级联型变流器的电压源型APF，基于电流型相移SPWM组合变流器的电流源型APF。

Low-frequency instability in a single stage PFC converter is studied, which employs a cascade configuration of a boost converter and a forward converter.

研究了由Boost 变换器和Forward变换器级联构成的单级功率因数校正(power factor correction，PFC)变换器中的低频不稳定现象。

Multilevel converter ; cascade ; topology ; module

多电平变换器；级联型；拓扑；模块

A novel hybrid diode-clamp cascade multilevel converter is presented in this paper. The new concept of the converter is based on connection of multiple diode-clamp converter modules with different dc bus voltages. Normally, the voltage blocking capability of faster devices such as IGBT and the switching speed of high voltage devices like GTO are found to be limited.

该文在研究传统的级联多电平、传统混合级联多电平以及二级管钳位级联多电平变换器的基础上提出了一种新型的混合二极管钳位级联多电平变换器，这种新型变换器是将具有不同直流母线电压的多个二极管钳位多电平变换器进行级联，输出电压是将这些变换器的输出电压进行矢量相加而合成的。

Five versions of the vane cascade systems for the torque converter with the same basic geometric parameters were designed and the steady comparative experiments of these 5 versions versus the base version of W305 torque converter were performed.

在基本几何参数一致的基础上，设计了5种液力变矩器叶栅系统方案，并且对包括W305型液力变矩器比较基型在内的6种方案进行了稳态试验比较分析。

Come on,you guys,one more time.

来吧，再来一次嘛

To tackle this problem, an expressive method based on multidimensional emotion-semantic space is proposed in this paper.

针对色彩与情感映射模型复杂且难以实现的问题，提出一种利用多维语义空间表征色彩的方法。