Three-potential Equivalent Average Voltage Vector PWM Variable Frequency Speed Regulation Principle

电压 矢量等效三电平PWM 变频调速原理

In order to improve the reliability and adaptability of the pump driving system a vector control system for induction motor is presented . In this paper the fundamental ways of the vector controlling variable frequency converter for induction motor are introduced .

为了提高水泵拖动系统的可靠性和适应性，提出一种异步电动机矢量控制系统，介绍异步电动机 矢量控制 变频器的基本方法；

A Fully Digital Vector Control Variable Frequency Drive System

全数字 矢量控制 变频调速驱动系统

This thesis analyzes the stability of an AC motor vector control variable frequency speed control system by employing this new stability criterion on the platform of MATLAB / Simulink .

本文将运用这一新型的稳定性判据来判断 电机调速控制系统的稳定性，以MATLAB/Simulink为平台，对交流异步电机 矢量控制系统进行稳定性研究。

In the security and development of mineral resources strategic research in the field through the use of quantitative analysis method - Grey System Evaluation Model vector autoregressive model variable weights model portfolio evaluation model of its mineral resources security and the impact of the factors relations .

论文在矿产资源安全与发展战略研究等方面，通过运用定量分析方法&灰色系统评价模型、 向量自回归模型、 变权重组合评价等模型分析了短缺金属矿产资源安全与它的影响因素之间的关系。

The fuzzy-neural network control and self-adaptive control are applied to the vector con-trol system of converter-inverter variable frequency speed regulation for large synchronous motor .

将模糊神经网络控制以及自适应控制引入大型同步电动机交-直-交 变频调速 矢量控制系统中。

For three-phase asynchronous motor is a nonlinear multivariable strong coupled complicated controlled object it is difficult to establish the precise mathematical model characteristics this paper adopts vector control variable frequency speed regulating method .

针对三相异步电动机具有非线性、多变量、强偶合的复杂被控对象，很难建立它的精确数学模型等特点，本文采用了 矢量控制的 变频调速方法。

Vector Control in Synchronous Motor Variable - Speed System

同步电动机 调速系统中的 矢量 变换控制

Research and Design of Asynchronous Motor Vector Control Variable Frequency Speed Regulating System

异步电机 矢量控制 变频调速系统的研究与设计

Application of AC Fan Motor Speed Regulating Technique for Energy Saving in Baoshan Iron and Steel Works A Vector Controlled ( VC ) Variable Frequency Hydraulic System

交流风机调速节能技术在宝钢的应用 矢量 变频液压容积节流调速系统研究

The properties of vector sequence spaces with variable basic sequences of subspaces including completeness conjugate space sequential convergence compactness separability reflexivity weak sequential completeness and Schauder bases etc. are studied in this paper .

本文研究基子空间序列 可变 的 矢 值序列空间的特性，其中包括完备性、共轭空间、序列收敛性、紧性、可分性、自反性、弱序列完备性和绍德尔基等性质。

The general principle of the scheme was given . The vector control for variable frequency changing of AC motor and three-loop controller of position velocity and current feedback were adopted .

给出了方案的基本原理，并采用 矢量控制对交流电机进行 变频调速，以及位置、速度和电流反馈的三闭环调节器。

Recovery discrimination for nonperforming loan : A support vector machine method with variable selection

不良贷款有无回收判别：一类可选 变量的支持 向量机方法

The vector Control Variable Frequency Speed Regulating system for NC Machine Tool

数控机床主轴 矢量控制 变频调速系统

Application of vector control variable frequency speed regulating system in high-speed wire rod line

矢量控制 变频调速系统在高速线材轧线上的应用

Joint Source / Channel Coding Based on Vector Quantization and Variable Length Codes

基于 矢量量化和 可变长编码的联合信源信道编码

This paper uses induction motor vector control variable frequency speed regulation system as the object of study in allusion to its light load steady state operating condition studies the efficiency optimization control method in order to improve efficiency .

本文以异步电机 矢量控制 变频调速系统为对象，针对其轻载稳态运行工况，研究其效率优化控制方法，提高运行效率。

Study on vector control model of variable - speed constant - frequency double - fed wind generator

双馈型 变速恒频风力发电机 矢量控制模型的研究

A Introduction & Application of All-digital Vector Control Frequncy Variable Drive Technology

全数字化 矢量控制 变频传动技术及工程应用

Vector - control on Variable - frequency Converter in Packing Trade

包装行业中的 变频器 矢量控制

A digital vector control variable frequency speed regulating system for the AC spindle driver is presented .

介绍了一种单片 微机控制的高性能交流 异步电机矢量控制主轴伺服系统。

And according to fact of the Kunming telecom 's ODS data the article made certain of basing characterized vector and target variable individual sample influenced missing .

依据昆明电信ODS数据的实际，确定了个体样本影响流失的基本特征 向量和目标 变量。

On the vector sequence spaces with variable basic sequences

基列 可变 的 矢值序列空间

Sonic concepts such as grey mapping white mapping generalized vector and symbol variable are applied to deal with ths design of crankshaft .

本文将灰色映射、白色映射、广义 矢量、符号 变量等概念应用于处理曲轴设计问题；

In this paper some partial derivatives of a matrix function with respect to a vector variable are derived first . By using of these derivatives the representation of the normal approximation for any distribution density function of a random vector is given .

本文首先推导了若干矩阵函数对 向量 变量的求导公式，并以此为基础对任意的随机向量，给出其分布密度函数的正态迫近表示。

Based on the analysis of neural network 's structure we define a boolean vector which corresponding a random variable to make the associated coding of neural network 's structure and weight .

在分析前向神经网络结构的基础上，定义了一个与随机 数对应的布尔 向量，实现了前向神经网络的网络结构与权值联合编码；

AC-AC VVVF System for Potential-oriented Vector Variable Control

电势定向 矢量 变换控制的交－交变频调速系统

A Method of Zero Vector and Variable Delay Randomized PWM

一种零 矢量- 变延时随机PWM方法

This paper mainly investigates the Space Vector Pulse Width Modulation ( SVPWM ) technology and the Vector Control technology of variable speed system of diode Neutral-Point-Clamp ( NPC ) three-level Voltage Source Inverter ( VSI ) for induction machine .

本论文主要研究二极管中点钳位三电平电压源型逆变器供电异步电动机 调速系统的空间矢量脉宽调制技术和 矢量控制技术。