查询词典 frequency conversion

Then introduce the frequency conversion and PLC technology, which is widely used in today's podded electrical propulsion.In allusion to the operation feature of double-podded electrical propulsion slewing system, an experimental slewing control system will be designed next.

在充分收集国内外有关技术资料的基础上，针对双吊舱电力推进系统的结构组成和运行特点，提出了一种基于PLC和变频器控制的双吊舱电力推进系统的试验回转方案。

According to water circular system revampment of Gas Purification Plant of Northwest Sichuan, the principle of the frequency conversion speed control technique of water circular pump is discussed.

结合川西北净化厂循环水改造工程的实际工况，论述了循坏水泵变频调速节能原理。

With the development of electric and electronic technology,frequency conversion technology is becoming riper.

随着电力电子技术的发展，变频技术日趋成熟。

The cutting speed can be adjusted by stepless frequency conversion to suit materials in different hardness.

切削速度可以无级变频调速，以适应不同硬度材料加工。

The main products are as follows, three different step motors of YS series, the YY series electric capacity operates the asynchronous motor, YC (YC2) serial single-phase electric capacities start the asynchronous motor, the YU series resistance starts the asynchronous motor, asynchronous motor of electric capacity of a pair of value of YL series, three different step motors of Y series, three different step motors of Y2 series, YD series change the asynchronous motor of extremely many speeds, YH series are transfered to three different step motors of difference rate high, the YCJ series gear wheel moderates three different step motors, YEJ series electromagnetic to apply the brake three different step motor, YCT series electromagnetic to transfer speed three different step motor , YVP series frequency conversion transfer speed asynchronous motor , YSF series axle flow fan special-purpose three different step motor, Three different step motors of YZU series vibration source , the electronic device of YDF2 series valve uses three different step motors and YOX series limit distance type hydraulic coincidence device , ZLY spatters and makes such 28 series and more than 1500 specifications as the coil post tooth decelerator ,etc..

主要产品有：YS系列三相异步电动机、YY系列电容运转异步电动机、YC（YC2）系列单相电容起动异步电动机、YU系列电阻起动异步电动机、YL系列双值电容异步电动机、Y系列三相异步电动机、Y2系列三相异步电动机、YD系列变极多速异步电动机、YH系列高转差率三相异步电动机、YCJ系列齿轮减速三相异步电动机、YEJ系列电磁制动三相异步电动机、YCT系列电磁调速三相异步电动机、YVP系列变频调速异步电动机、YSF系列轴流风扇专用三相异步电动机、YZU系列振动源三相异步电动机、YDF2系列阀门电动装置用三相异步电动机和YOX系列限距型液力偶合器、ZLY渐开线圈柱齿减速器等28个系列1500多个规格。

Main shaft rotary speed: 1-10rpm/m, electromagneticsm or frequency conversion stepless adjust, harrow arm: 2-8 harrows on each drying layer

主轴转速：1-10转/分，电磁或变频无级调速。◆耙臂：每层干燥盘上2-8支固定在主轴上的耙臂。

Aiming at the heavy load starts and the original soft start limitation,the new soft start is proposed with hands overhands over the frequency conversion starting and the thyristor accent presses.Through the experimental test,this new soft start can solve voltage hunting influence completely,and has the practical application value.

针对重载起动，传统软起动的局限性，提出采用交-交变频起动和晶闸管调压软起动相结合的方法，并通过试验测试该软起动方法能够解决重载起动时的电压波动影响，具有实际应用价值。

This paper introduces in detail the researches and practices of the new techniques for conserving energy and reducing consumption in Shanghai Port,including electricity superseding oil RTG,hybrid-power RTG,RTG tyre retreading,frequency conversion of gantry crane,and energy-saving head-over light.

本文详细介绍上海港节能降耗的新技术研究与实践，包括：RTG油改电，混合动力RTG，RTG轮胎翻新、门机变频改造，及高杆节能灯。

The compressor works with 70% shoulder undulates in 97% time, in order to guarantee a high operating efficiency, the frequency conversion velocity modulation has taken an adjustment way.

压缩机97%的时间在70%负荷以下波动运行，为了确保较高的运行效率，采用变频调速进行控制。

PWM frequency conversion timing, preprocessing, predicting and compensating algorithm, and software signal control in advance are adopted, which realize color music spring control with high quality, provide a new advanced method for the control design of music spring .

仿真分析证明该设计方案改善了传统控制方法的水声滞后效应，改善了喷泉系统的控制品质，从而真正达到了实时控制的要求。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。