frequency switching的例句大全

Study on Width Self Adapting Quasi Fixed Switching Frequency of Three-level Hysteresis Loop PWM Inverter

三电平自适应滞环宽度实现准固定开关频率的研究

This paper mainly discusses the increment of switching frequency and reliability of GTR in frequency converter.

主要讨论了变频器中大功率器件GTR开关频率可靠性的提高。

Taking advantage of the active control system and the air gap between the rotor and stator, the bearing point was changed at the point of switching frequency and the formation of a double supporting structure, an even transition was attained.

利用电磁轴承具备主动控制系统和定子与转子之间有较大气隙的有利条件，通过采用电磁轴承双支承结构在转换频率处的支承转换，实现转子在共振区域的平稳过渡。

Dual bands study of CHB inverter with lower switching frequency

链式逆变器低开关频率的双波段研究

On the other hand, the mixed modulation algorithm uses the five-segment modulation algorithm and the characteristic quadrangle to approximate the reference vector which can reduce the switching frequency. Finally, a three-cell seven-level inverters experiment platform is set up.

另一方面，混合调制算法利用特征四边形法和五段算法逼近参考矢量减少了开关切换频率。

PWM inverters with high switching frequency may shorten the rise time of PWM output pulses. They have been widely applied in high-speed AC driving locomotives.

高速交流传动机车广泛采用高开关频率器件的脉宽调制（PWM）逆变器，使得逆变器输出脉冲具有陡上升沿。

Hysteresis control has disadvantage of unstable switching frequency.

滞环控制方法存在开关频率变化不定的缺点。

In this subject vacuum tube is used as the switching component in the Class E power amplifier to get higher output power with higher frequency.

本课题的E类功率放大器用电子管作为开关元件，目的是提高放大器的效率和频率，同时获得较大的功率输出。

The author bas joined in and auc-cessfully accomplished a PFM DC regulated power supply using high frequency fast switching thyristor, which has been adopted in practical application.

笔者曾参与研制成功一种利用高频型快速晶闸管实现的PFM型直流稳压电源，已付诸实际使用。

The Algorithm of Real-time Solution of Selective Harmonic Controlling Equations for PWM With Low Switching Frequency

基于PWM低开关频率选择性谐波控制方程组的实时算法

Soft switching control of high frequency induction welding power supply with PWM and PFM

高频感应焊接逆变电源PWM和PFM软开关控制

It has the higher switching speed and frequency and can be used as the pilot valve for a larger flow rate valve, or as a direct control valve for small flow rate hydraulic loop.

该阀具有很高的切换速度和频率，可以用来作为大流量高速开关阀的先导控制阀，也可以在小流量回路中直接作为控制阀使用。

A SPWM Frequency Control System With Fixed Switching Frequency and Current Tracing

一种固定开关频率型电流跟踪SPWM变频调速系统

With high chopping frequency and novel control strategy, the size of filter elements is reduced and switching loss of IGBTs drops.

由于采用了较高的斩波频率和新颖的控制策略，减小了滤波元件的尺寸，并降低了IGBT的开关损耗。

With numerical calculation from single mode rate equation of semiconductor laser, the output pulse parameters in time and frequency domains are investigated under different gain switching conditions.

从激光器的单模速率方程出发，利用数值方法研究了在不同的增益开关状态下，输出光脉冲的时域及频域特性。

The master DG used V/ f control method to maintain voltage and frequency and to assume power load switching. The slave DG used the constant active and reactive power control.

其中，主动DG使用V/f控制方法维持微网的电压和频率并承担功率负荷的波动，从动DG使用PQ控制方式输出恒定的有功和无功功率。

However, the IGBT switching losses is large, especially at high-frequency switch with tail current state, which limits the frequency of IGBT.

然而大容量的IGBT存在开关损耗大，尤其是拖尾电流在高频开关工作状态下引起的关断损耗很大，限制了其工作频率的提高。

the output filter is a key component of sapf, considering the two indicators of compensation frequency band tracking performance and high-frequency band switching harmonic suppression performance, a parameter computation method of lrc type of output filter is proposed based on the volt-second characteristic.

输出滤波器是SAPF的关键组成部分，综合考虑补偿频段的跟踪性能和高频开关谐波抑制性能这两类指标，提出了基于伏秒特性的LRC型输出滤波器的参数计算方法。

in order to meet the requirement of switching mid-high frequency application in the fields of medical instrument and welder marketing, mitsubishi electric developed nfm series igbt module.

针对医疗仪器和电焊机等市场领域对中高频开关应用的需求，三菱电机开发了NFM系列中高频IGBT模块。

switching frequency and error of current tracking are estimated, so resolve how to limit the frequency as setting parameter.

对电流控制两态调制逆变器的开关频率、电流跟踪误差作出了估算，解决了参数设计时如何限定开关频率的问题。