频率控制

采用DSP的三相整流器开关频率控制算法

Switching Frequency Control Algorithm in Three-phase Rectifier Using DSP

基于DSP的转差频率控制系统在电动游览车中的应用

The Application of Slip Frequency Control System on Electric Tourist Car Based on DSP

软件实现DSP的数据采集频率控制的设计

How to Control the Sampling Frequency of the DSP In Software

利用频率控制反馈环实现CMOS高速放大器

Realization of CMOS High Speed Amplifier Using Frequency Controlled Feedback Loop

使两区域负荷频率控制既有非线性控制作用和自学习自适应能力，又有PID控制的广泛适用性。

The load frequency controller is adaptive and nonlinear in control action , and has widespread application of PID controller .

本文实现了一种利用有源Q倍增谐振器稳定振荡器的自动频率控制系统。

An AEC system has been realized in which an active Q-multiplied resonator is used to stabilize the crystal oscillator .

介绍一种以DSP为控制核心的异步电动机转差频率控制系统在电动游览车中的应用。

A slip frequency control system of asynchronous motor used DSP as control center is presented , which apply to the electric tourist car .

基于CPT原理原子钟的频率控制系统

Frequency Control Model of Atomic Clock Based on Coherent Population Trapping

基于CPS考核标准的专家控制器的设计及其在负荷频率控制中应用

Design and Application of Expert Controller on the Load Frequency Control

本文利用非线性递归神经网络与单神经元线性PID控制相结合的方式来改进神经元PID调节器，并将其运用于贯流式水力机组单机带孤立负荷运行时的频率控制。

This paper presents a new controler for bulb turbine based on the combination of a nolinear recurrent neural network and a linear PID neuron .

华中-华东多回HVDC辅助功率/频率控制

Study on the Auxiliary Power / Requency Control of Center China to East China to East China Multi-circuit HVDC Links

PID完成区域电网内的二级负荷频率控制，区域控制偏差作为有2个小波神经元的神经网络输入，输出用于共同控制负荷频率稳定。

Within an area , 2-loop LFC is implemented by PID control , while the area control error is applied as inputs for wavelet neural network to stabilize frequency .

研究了直流辅助频率控制与PSS对送端系统频率稳定的影响。

Studies are conducted on the frequency stability of the delivering side drawing on the DC frequency control and PSS .

在分析振动压路机振动频率控制系统的基础上，对控制器进行了设计，提出了采用PID控制实现振动频率恒定的方案。

On the basis of analyzing vibratory frequency control system of vibratory roller , the controller are designed and the plan of vibratory frequency constant control by PID are put forward .

芯片内部还集成了自动增益控制（AGC）、模拟自动频率控制（AFC）模块。

Automatic gain control ( AGC ) and automatic frequency control ( AFC ) were also integrated into the chip .

在分析负载的机械特性、步进电动机的矩频特性、系统的运动方程式的基础上，建立频率控制方程，并运用MATLAB软件绘制控制曲线。

Frequency control equation is established based on the analysis of load mechanical characteristic , stepper motor torque-frequency characteristic , systemic motion equation . Frequency control curve is drawn by MATLAB software .

软开关PWM技术集谐振变换器与PWM控制的优点于一体，既能实现功率管的零电压开关，又能实现功率管的恒定频率控制，是电力电子技术的发展方向之一。

Soft-switching PWM technique integrates the advantage of resonant converter and constant frequency modulator , which realizes zero-voltage-switching in constant frequency , and is one of the development trends of power electronics .

通过对频率控制字和相位累加器的控制，实现了FSK、PSK和脉冲调制等信号。

By control of frequency tuning word and phase accumulator , FSK , PSK and pulse wave is generated . 2 .

在软件公式的设计上，选用了美国POLEZERO公司滤波器频率控制码的计算公式，这样很好地使控制码和滤波器的频率达到了几乎线性的关系。

In software design , selecting of the United States POLE ZERO companies filter frequency control code formula . This makes a good filter to control codes and the frequency of the almost linear relationship .

重点说明了Nd：YAG脉冲调Q激光器中的泵浦系统的实现过程，并给出了具体的主电路和重复频率控制电路。

The paper also primarily explained the implementation for the pumping system of the Nd : YAG pulse Q modification laser set and presented the practical main circuit along with the repeating frequency control circuit .

从而有效地解决了由于频率控制字的所带来的量化误差，简化了DDS的控制，减少了实现DDS所需资源。

The improvement efficiently ( eliminates ) the quantitative error of the frequency control word , simplifies the control of DDS , decreases the required source to implement DDS .

根据自动负荷频率控制原理，利用MATLAB提供的灵活高效、图形化的建模仿真环境，建立模拟两区域互联的自动负荷频率控制的模型。

According to the principle of automatic load - frequency control ( ALFC ), by using flexible , effective & graphical modeling provided by MATLAB , the model that simulates ALFC of two interconnected network is set up .

叙述了信号序列产生设计方法，重点介绍频率控制字分析和研究过程、FPGA实现方案及其仿真实验结果。

The design method of signal sequence generator is introduced . The process of study and analysis of frequency control word , practical FPGA design plan , and simulation and experiment result are given mainly in the paper .

自动频率控制（AFC）系统用于调节微波功率源输出的微波频率，使之与加速管的固有谐振频率匹配。

Automatic frequency control ( AFC ) system is used to adjust the frequency of microwave power source to match the inherent frequency of acceleratory tube .

在某型机载相控阵雷达中，阵面电源采用移相控制零电压软开关PWM变换技术，既能实现功率管的零电压开关，又能实现功率管的恒定频率控制，符合电力电子技术的发展方向。

A PS-ZVS PWM soft switching power supply is applied in an airborne phased array radar , which realizes both zero-voltage-switching and constant frequency control of power tube and accords with the development trend of electrical and electronic technology .

在完成数字下变频的同时，仅通过改变DDFS的频率控制字，来完成频偏的补偿。

At the same time of digital down converting , compensate the carrier offset only changing the control word of DDFS .

同时针对普通双电感Boost变换器在较宽负载时需采用变频控制的缺点，引入辅助变压器，从而能够实现固定频率控制。

An auxiliary transformer is adopted to overcome the disadvantage that common double inductor boost converter requires variable-frequency control in a wide load range , and then constant-frequency control is achieved . Simulation analysis of the boost converter is carried out .

试验结果显示，用该方法设计的带阻FIR滤波器克服了传统方法的主要缺陷，具有良好的幅频特性及衰耗特性，并且边界频率控制精确。

The experimental results showed that it overcame the main defects of the conventional methods , and that the filter had good amplitude , frequency and attenuation performance , and that the edge frequency could be set exactly .

最后，完成了材质分别为LY8、20钢、45钢、T8钢等棒料在不同振动频率控制曲线下的变频振动下料试验。

Many experiments on the material of LY8,20,45 and T8 steel were conducted under the control of various vibration frequency curves .

论文着重分析了改进控制策略在DSP中的应用及DSP在开关电源控制领域中的局限性，提出可用FPGA代替DSP控制芯片，实现高开关频率控制。

The paper focuses on analyzing the improved control strategy in DSP application and the limitation of DSP in the field of switching power supply control . It put forward that using FPGA instead of DSP control chip to achieve high switching frequency control .