查询词典 inverter

The design method of PID controller based on pole-assignment is proposed in this paper. The simulations indicate that this PID controlled inverter provides nice characteristics. A method of PI controller combined with instantaneous differential voltage is also proposed, which is equivalent to PID control in essence and can be seen as a simplified dual-loop form. Accordingly it is a simple but effective adjustment.

本文研究了基于极点配置的PID控制器的设计方法，仿真结果显示这种PID控制器性能优越，同时还提出一种PI调节器结合电压微分反馈的调节方式，并指出这种调节方式和PID调节其实是等效的，而且是一种简化的双环形式，因此是一种简单而有效的调节方式。

Then, the instantaneous voltage feedback control circuit of the Z source inverter with an inner loop of the output filter inductor current is designed. The validity of the double close loop control strategy is verified by simulation and experiment results.

首先对阻抗源逆变器的逆变部分进行了建模，其次简要介绍了传统电压源型逆变器的控制策略，然后以带滤波电感电流内环的电压瞬时值反馈控制为例介绍了阻抗源逆变器的输出电压控制的实现。

Simulation and experimental results indicate that for the SPWM inverter based on instantaneous output voltage feedback control,the fundamental open circuit output voltage incr...

仿真和实验结果表明，对于采用瞬时输出电压反馈控制技术的SPWM逆变器，其输出电压在空载时随着死区时间的增加而增加，负载电流超过临界电流后其输出电压随死区时间增加而下降；其阻性负载时的外特性曲线是一条先下降后上升的曲线。

In this paper, working conditions and failure mechanisms of insulating materials in inverter-fed motors were analysed.

分析了变频电机绝缘材料的工作环境和破坏机理，概述了耐电晕绝缘材料的研究及其在变频电机中的应用现状，讨论了我国在该领域存在的问题，提出了今后耐电晕绝缘材料的研究重点。

In past few years ,the research on realization technology of Application Specific Integreted Circuit for inverter controller has got more and more solicitude, and have become the new research direction of inventer controller.

为此，近几年来逆变器专用控制芯片实现技术的研究越来越受到关注，已成为逆变控制器发展的新方向之一。

In this scheme, the inverse transfer function of inverter is used as a compensator to obtain stable and satisfy harmonic rejection.

采用了逆变器传递函数的逆函数来获得足够的稳定性和谐波抑制能力。

So, it is very important significance about how to achieve this target in inverter application field.

因此如何在变频应用领域实现这一目标具有十分重要的现实意义。

With the development of information technology, inverter power supplies are widely used.

随着信息技术的发展，逆变电源应用日益广泛。

This is the principle basis for inverter.

这是变频器原理的基础。

Moreover, as the inverter technology development.

而且随着变频技术的发展。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。