In the current network-centric business model it is becoming increasingly difficult to validate a person's identity, control access, and maintain integrity and privacy of data.
在当前以网络为中心的业务模型中,验证个人身份、控制访问和维护数据的完整性与保密性变得越来越难。
This design USES fuzzy control theory which doesn't require exact mathematical model because of the randomness of the controlled objects in the current city traffic control system.
针对当前城市交通系统中的被控对象具有较大的随机性和偶然性,引入了不需要建立精确数学模型的模糊控制。
In the application of above 24V fort current voltage grade control circuit, Voltage Alternating and resonant wave interference of input model for Programmable Logic Controllers must be resolved.
可编程控制器在高于24V的直流电压等级控制回路中应用时需解决输入模块的电压变换和谐波干扰等问题。
On the basis of mathematical model of AC induction motor in vector control inverter the static measurement of electrical parameters for AC motor is completed using pulse voltage and pulse current.
在矢量控制交流感应电动机数学模型的基础上,采用阶跃电压和阶跃电流的方法实现了对交流电机电气参数的静态检测。
Current model is the key part in the rotor flux linkage oriented control system, and its discretization analysis is conducted.
电流模型是转子磁链定向控制的关键,这里对其进行了离散化分析。
According to the motor mathematical model, control system is confirmed to dual loops feedback construction including position loop and current loop.
根据扫描电机的数学模型确定了位置反馈加电流反馈的双闭环负反馈控制结构。
On account of the average current control chosen in the APFC system, a large signal dynamic BUCBB model is built and all the switching elements replaced by dependent sources.
由于变换器工作在平均电流控制的APFC系统中,本文建立了BUCBB变换器的大信号动态模型,并将BUCBB变换器中的开关元件用受控源代替。
The paper presented a mathematic model and control strategy on a three-phase voltage type rectifier under indirect current control.
该文对基于间接电流控制三相电压型整流器的数学模型和控制策略进行研究。
The third chapter introduces the principle of ASVG and gets the indirect current control according to the simplified circuit model of ASVG.
第三章介绍了ASVG的基本原理,根据简单AS VG电路模型得出电流间接控制策略。
And according to the mathematical model, vector control principle and minimal direct axis current control and its digital realized method were discussed.
结合数学模型,讨论了有关矢量控制的原理和直轴电流最小控制的数字实现方法。
Based on the theory of vector control and automatic control system, the vector control system of current model for doubly-fed asynchronous machine with field-oriented rotor was established.
根据矢量控制理论和自动控制原理,建立了转子磁链定向的双馈异步电动机电流模型矢量控制系统。
A controlling model of inverter spot-welding process and a fuzzy neural network configuration about inverter spot-welding with constant current control were built in this paper.
推导了逆变点焊过程控制模型,并构建了逆变点焊模糊神经网络恒电流控制系统结构。
This paper proposes a new vector control system based on an model reference adaptive system(MRAS) of internal model current control.
本文提出一种新型的基于模型参考自适应的内模电流控制的矢量控制系统。
In this paper, a current control mathematical model is established with fixed switching frequency for three-phase pulse width modulated (PWM) converter.
建立了三相电压型PWM整流器电流控制数学模型,输入电流在静止坐标系下实现了固定开关频率的解耦控制。
This model can resolve various security problem of current applications, and can be extended to an access control model for the different domains.
该模型可以很好地解决现在一些系统中存在的安全问题,并且可以扩展成多域之间的安全互访问模型。
In this article, we firstly analyze access control technology of current operating system. Then we discuss the three dimension access model, based on traditional access control model.
论文首先分析了现有操作系统的访问控制技术,然后在传统访问矩阵模型的基础上,讨论了三维访问矩阵模型,提出了基于程序的访问控制思想。
Mathematical model of the system, included the current control circuit, power driving circuit and five-phase hybrid stepping motor is established.
建立了包括电流控制电路、功率驱动电路以及五相混合式步进电动机在内的恒频斩波恒总流驱动系统的完整的数学模型;
Satellite attitude control flywheel is driven by three-phase alternate commutating brushless DC motor, schema of which is torque control model (current feedback).
卫星姿控飞轮是由三相轮流换向无刷直流电动机驱动的,采用力矩控制(电流反馈)模式。
According to the provided plan of MITRV, this article designed the model of MITRV with current technologies; meanwhile, it analyzed and designed control system in the plan.
文中提出的多头分导弹头模型具有较好的参考价值,对所需关键控制技术的分析设计,为深入研究提供了必要的基础。
The basic working principle of the DSTATCOM is studied and its mathematical model is established in this paper. The direct current control and indirect current control are compared in this paper.
本文首先研究了DSTATCOM的基本工作原理,建立了其数学模型,比较了直接电流控制和间接电流控制两种常用的控制方法。
Based on the traditional control on PWM rectifier, space vector PWM predictive current controller is presented using the switching function model.
在传统的PWM整流控制的基础上,论文利用开关函数建模法,提出了基于预测电流的PWM电压空间矢量控制方法。
The improved period-average-mode of the single-phase PWM VSC is set up, and the current control scheme based on the model is presented.
建立了PWM逆变器的改进型周期平均模型,并给出了基于此模型基础上的电感电流控制方式;
On the basis of the stationary state mathematical model of a PWM current-source converter, the paper analyzes the coupling of a converter and presents a simple decoupling feedforward control method.
在建立电流源型PWM变流器稳态数学模型的基础上,分析了系统的耦合关系,提出了一种基于小偏量线性化的前馈解耦控制方案。
The model can truly reflect function mapping relationship between submerged arc furnace location and current, which is significant for studying control strategy.
该模型真实的反映了矿热炉位置与电流之间的函数映射关系,对研究控制策略有着重要的意义。
He shows that, contrary to frequent announcements of breakthroughs, our current cancer control model cannot eradicate most cancers and the reasons why.
他显示与突破的频繁的通告相反,我们的当今的癌症控制模型不能根除大多数癌症和原因为什么。
In-depth analysis of the Automotive braking process, a current feedback control model is introduced based on the energy error redeem, in order to improve the braking system simulation effect.
在深入分析制动器控制过程的基础上,建立了基于能量误差补偿的电流反馈控制模型,以提高试验台的仿真效果。
For an industrial plant with high great lag, the current control strategy is Smith predictive control, or internal model control, both of them are using continuous models.
对于带有严重纯滞后的工业对象,目前的控制策略是史密斯预估控制,或者是内模控制,他们都要使用连续域的数学模型。
According to the fundamental equations induction motor for the field oriented control, a new rotor flux model combine with the merits of voltage model and current model is presented.
根据异步电机转子磁场定向控制的基本方程序,对直接磁场定向矢量控制系统,设计了结合电压模型和电流模型优点的磁通观测器模型。
This paper mainly researches and designs fuzzy control system used in brush roll motor current load control and establishes its object model successfully used in simulation in the lab.
本文主要研究和设计了冷轧带钢电解清洗线上刷辊马达电流负荷控制的模糊控制系统并做了建模与仿真。
This paper mainly researches and designs fuzzy control system used in brush roll motor current load control and establishes its object model successfully used in simulation in the lab.
本文主要研究和设计了冷轧带钢电解清洗线上刷辊马达电流负荷控制的模糊控制系统并做了建模与仿真。
应用推荐