Research and development on synchronous speed control system with PLC

新型 卷绕 同步控制系统的研发

Because the AC asynchronous motor ' synchronous speed is determined by the frequency we can control the AC asynchronous motor ' speed by changing the supply power 's frequency .

交流变频调速系统是利用异步交流电动机的 同步 转速随频率变化的特性，通过改变电机的供电频率而进行调速。

But with the peak amplitude increase water exchange volume and exchange synchronous speed is increased . ( 3 ) The simulation analysis water dynamic process of the three gorges reservoir under the condition operation mode and the same in different typical water .

而且随着调峰幅度的增加，水体交换量和交换 速度 同步提高。（3）模拟分析了相同日运行方式和不同典型库水位条件下的三峡库区水动力过程。

The network the rotor speed models are also introduced and the double synchronous speed mathematical model has been deduced and set up in this paper .

介绍了无刷双 馈电机的网路模型、转子速模型，推导和建立了双 同步模型等数学模型进行推导。

The ANN-based load observer is applied to the synchronous motor speed regulating system .

应用神经网络建立负荷观测器，并应用于 同步电动机 调速系统中。

His paper mainly introduces an application of AC motor speed control by variable frequency in multi-motor synchronous drives of dyeing and printing works . It includes system principle synchronous speed control scheme tension transducer tension regulator and stability analysis .

将交流电机变频 调速技术应用于印染厂布铗丝光机同步传动系统中，主要介绍系统原理、 同步方案、张力传感器和稳定性分析等。

The simulation of grid-connected operation is carried out under synchronous speed and non-synchronous speed .

对无刷双馈电机进行了 同步 速和非同步速两种运行工况下的并网运行仿真。

The speed is based on the synchronous motor speed reduction ratio as a benchmark calculated by dividing the value of .

转速是以电动机的 同步 转速为基准除以减速比而算出的数值。

On the basis of these analysis the control strategy of 12-phase synchronous motor speed regulating system is advanced .

据此，提出了交交变频气隙磁链定向控制12相 同步电动机 调速系统的控制策略。

Synchronous speed control system with PLC

印染机械多 电机 同步控制系统

In this way 2 octave synchronous speed which is relative to the speed of the rotor induces eddy currents and heat in the various parts of the surface of the rotor .

这样，对转子的相对转速为2倍频的 同步 转速，在转子表面各个部件中感应出涡流电流，由此引起发热。

Smooth material feeding and synchronous linear speed .

走料平稳，达到 同步线 速度。

According to the requirements of synchronous speed control of series conveying belt several patterns which could realize the synchronous speed control under frequency conversion was analyzed .

针对多级胶带输送机 同步 运行要求，分析了胶带机变频拖动同步运行实现的几种模式。

PLC and Frequency Inverter Based Synchronous Speed Control

利用PLC和变频器进行 速度 同步控制

The main content of study covers the foliowings : ( 1 ) The paper derives the dynamic model and steady-state model of the normal asynchronous generator and doubly fed induction generator expressed in the reference frame rotating in synchronous speed ;

对普通异步发电机及双馈感应 电机在 同步旋转参考坐标系下的动态方程及静态方程进行了推导；

The dynamic model of double fed induction generator in the reference frame rotating in synchronous speed is given in this paper . 2 .

本文对双馈感应电机的动态模型在 同步旋转参考坐标下的 动态方程进行了推导。

And the rule stator voltage frequency changing with time is confirmed through computing the time rotor cost on achieving corresponding synchronous speed .

通过计算转子转速达到相应 同步 转速的时间来确定变频器逐级升高的电压频率随时间的变化规律。

The feasibility of designing controller for control permanent-magnet synchronous motor speed is proposed by using differential geometry theory .

对采用微分几何方法设计永磁 同步电机 转速控制器的可行性进行了研究。

On the basis of the asynchronous motor equations in the M-T reference frame rotating at synchronous speed the paper in detail analyses the effect of the rotor parameters including reluctance and inductance on the performance of the Flux-Observation based Vector Control .

该文从 同步 速M-T坐标系下异步电机方程和异步电机矢量控制的基本原理出发，详细分析转子参数（电感和电阻）对磁通检测式矢量控制性能的影响。

According to the features of the carpet washes drying machine a synchronous speed controls system based on PLC and the swinging arm compensator was introduced .

根据铁路客车地毯清洗干燥机的工艺特点，研制了一种用PLC和摆式松紧架实现的 同步控制装置。

The low . speed range comes to 30 percent of synchronous speed of the machine .

低速工作转速范围达 同步 转速的30%。

Based the previous theory analyses and the successful simulation for MC the system simulation model was found and the simulation analyses were done under the synchronous speed simply .

利用前面所有的理论分析，在成功对矩阵变换器进行仿真分析的基础上，建立了系统的仿真模型，并对该系统进行了简单的 同步 速下的仿真分析。

The utility model relates to a six speed fully synchronous speed changer for a vehicle belonging to a mechanical transmission device for an automobile .

一种六速全 同步汽车 变速器，属于汽车用机械式传动装置。

To study cycloconverter fed synchronous motor speed adjustable system with circumfluence and automatic reactive power compensation .

研究了具有无功功率自动补偿功能的有环流交交变频 同步电动机 调速系统。

By classifying post-fault systems into five groups according to the relationship of synchronous speed and equivalent two-machine speed a method is presented to analyse the mechanism of the influence .

提出依据等值两群 转速 与 同步 转速的关系将受扰系统进行分类的方法，清晰地揭示了转矩方程中转速因素影响暂态稳定性的内在机理。

The Design and Study of High Performance AC Permanent Magnet Synchronous Speed Regulation System

高性能交流永磁 同步 调速系统的设计与研究

Synchronous speed control of the fold machine is a very important section in the whole folding process .

全自动叠图机 速度 同步控制是图纸折叠过程中最为重要的环节之一。

On the basis of the dynamic asynchronous motor model in the d-q reference frame rotating at synchronous speed internal model control method was introduced based on which and rotor flux oriented vector control the stator current controllers were designed .

从 同步 速d-q坐标系下异步感应电机动态模型和异步电机矢量解耦控制的基本原理出发，引入了内模控制方法，设计了基于转子磁链定向和内 模控制的定子电流调节器。

In the process of tracing maximum wind-energy of a variable-speed constant-frequency wind-power generation system the doubly-fed generator will operate below and above the synchronous speed which requires the AC excitation power supply to possess excellent input and output performance and the bi-direction flowing ability of energy .

在变速恒频风力发电系统追踪最大风能的过程中，双馈发电机将在 同步 速上下运行，这就要求交流励磁电源应有良好的输入、输出特性和能量双向流动的能力。

A synchronous condenser is nothing more than a synchronous machine running at synchronous speed with no mechanical load .

同步调相机只不过是一种以 同步 转速运转的不带机械负荷的同步电机。