synchronous speed

This thesis proposes the design and development of-phase permanent-magnet synchronous motor drivers with speed generator sensor.

本文旨在研制具转速发电机之转速及位置侦测装置的永磁式同步电动机驱动系统.

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The vector control software of 12-phase cycloconverter-fed synchronous motor system is designed according to the fully digital variable speed system, based on two-level DSP. The arithmetic of the digital PI regulator and digital control of exciting current are also provided.

根据双DSP两级控制的全数字十二相同步电动机交交变频调速系统的特点，设计了一套矢量控制软件，重点给出了数字PI调节器的算法和励磁整流的数字触发程序；

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Based on the mathematical model of the permanent magnet synchronous motor, the sliding surface form according to the error between measured current and observational current, using observed back EMF to calculate estimated speed/ position.

基于永磁同步电机的数学模型，根据实测电流和观测电流之间的误差构成滑模面，应用观测得到的反电动势计算出估计的转速/位置。

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Pulsating magnetic field PM low speed synchronous motor is a type of PMSM with novel structure.

脉振磁场永磁低速同步电动机是一种新结构原理的永磁同步电动机.

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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。

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A synchronous tracker with an advanced cutting technology has been developed, this is the key to the high speed thermal cutting on line production of spiral pipes.

切管同步随行机的设计原理、结构特点、工作状态和水再压缩式空气等离子切割的技术特点、工艺试验结果等。

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An air-gap-flux observer used for air-gap-flux-orient control of 12-phase synchronous motor speed regulation system is obtained.

进一步推导得到了气隙磁链定向控制12相同步电动机调速系统的气隙 磁链观测器.

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In the process the multithreading, timer, double-buffer and synchronous object etc have been used, the system stability and real-time quality are effectively assured, the function of high speed digital image card is realized by digital I/ O card.

在实现过程中采用了多线程、定时器、双缓存和同步对象等技术，有效保证了光谱数据采集、存储与显示的稳定性、实时性，用高速数字采集卡实现了高速数字图像采集卡的功能。

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The Method of Real Time and Synchronous Counting for High Speed Multi-Event by CPLD

多个高速事件实时同步计数的CPLD实现方法

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A three-loop system is constructed for a vector control permanent magnet linear synchronous motor ( PMLSM). In the speed-loop and current-loop, an IP controller and a state feedback controller are used for high accuracy and rapid tracking and to restrain disturbance.

把一矢量控制的永磁直线电机构成一个三环系统，在速度环和电流环内采用IP速度控制器和状态反馈控制器，以实现电机的高精度快速进给，并抑制外部扰动对系统的影响。

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The enhanced uplink technology for Time Divided-Synchronous Code Division Multiple Access ( TD-SCDMA) is used to improve uplink performance, to speed up the peak uplink rate, to enlarge the whole uplink throughput, and to decrease the transfer delay.

时分同步码分多址（TD-SCDMA）上行增强技术的主要目的是改善上行性能，显著提高上行分组数据的峰值传输速率，以及提高上行分组数据的总体吞吐量，同时减少传输延迟。

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