A kind of fundamental wave equivalent circuit of dielectric-barrier discharge ozone generator powered by sinusoidal voltage is proposed.
提出了一种新的正弦电压供电DBD型臭氧发生器基波等效电路,该电路由非线性基波等效电阻Re和基波等效电容Ce简单并联组成。
In the end of 20th century,two main flowings were formed,including the algorithms based on motor s fundamental wave model with Park transformation and the high-frequency injection algorithms with high-frequency injection based on the motor s harmonic model.
无(位置、速度)传感器控制是当前国内外交流电机传动的热点,在20世纪末已经形成了以交流电机的Park方程为基础的基于电机基波模型的无传感器控制和以高频信号注入法为基础的基于电机谐波模型的无传感器控制两大体系。
This paper introduces a method of calibrating and processing angular speed fluctuation in NI sampling system—PXI-6281,it accomplishes the acquisition of angular speed fluctuation by distortion of signal,analyzing fundamental wave,high-order harmonic of angular speed feedback signal,and calculating the amplitude ratio of base-wave and high-order harmonic.
利用N I的PX I-6281高速数据采集卡来完成角速度波动信号的采集,借鉴信号失真度的概念,分析角速度反馈信号的基波和高次谐波大小,求取高次谐波与基波幅值比,作为角速度波动率。
The PWM inverters are applied to produce fundamental currents, which are injected the multiple compensation secondary windings.
该单元向相应的二次侧注入幅值相同、相位相反的基波电流,在补偿系数等于1或略大于1时,在串联变压器一次侧对基波呈近似为0的阻抗,而对谐波呈现高阻抗,从而迫使谐波流入无源支路。
A practical 3 phase series active power filtering device is investigated based on the principle of the fundamental magnetic flux compensation.
根据基波磁通补偿的滤波新原理研制了一套三相有源电力滤波装置 ,该装置采用 3个独立的串联变压器和 3套独立的逆变器 ,以便应用于实际中可能出现不对称的三相负载。
A power quadrilateral consists of apparent power S,active power P,reactive power Q,and distortion power N,or is composed of a fundamental harmonic power triangle and a harmonic power triangle.
功率四边形也可看成是由基波功率三角形和谐波功率三角形组成的。
In this paper, we make use of Fourier series to analyze the fundamental harmonic of the SPWM and make a conclusion that the larger carrier frequency ratio(N) is, the better resolution of modulation is.
本文首先对正弦脉宽调制(SPWM)的基本原理进行了说明,并利用付利叶级数对SPWM 基波进行了分析,得到载波比N 越大调制效果越好的结论,但N 受功率开关器件本身允许频率限制,N 不能过大。
Acquisition of fundamental waveforms based on neural network;
一种基于神经网络的基波分量提取方法
A new fundamental waveform electronic watt-hour meter was developed with its designed method proposed.
介绍了一种新型基波电子式电能表的设计方法,分析了电子式电能表的发展趋势,讨论了在谐波存在下电能计量的不准确性,阐述了新型基波电子式电能表的设计方案,电能计量部分确定采用DSP芯片通过软件编程实现。
A new fundamental waveform electronic watt-hour meter is developed.
介绍了新型基波全电子式电能表的设计方法,分析了电子式电能表发展情况和发展趋势,讨论了在谐波存在下电能计量不准确的原因,阐述了新型基波全电子式电能表的设计方案,电能计量部分确定采用DSP芯片通过软件编程实现低通滤波和电能计量,软件采用适于本表计的前后台软件结构。
What the subject researching is that power energy should be measured with base wave ammeter to power systematic nonlinear user;And that it is high veracious by base wave AC parameters measurement method to those not bad contaminative.
本课题所研究的问题是针对电力系统非线性负载用户采用基波电度表来计量电能；而对谐波污染不严重的线性用户采用基波交流参数测量的方法仍然具有较高的准确性。
To Work Out Demonstration Program of Fundamental Wave and Harmonic Superpose With VB 6.0;
用VB6.0编写基波与谐波叠加演示程序
reference carrier
基准载波, 参考载波
The higher modes have shorter periods than the fundamental mode and, moreover, they have higher velocities.
高振型波比基阶振型波周期短，波速高。
The Researches on Microwave and Millimeter-wave Spatial Power-Combining Technology Based on Waveguide;
基于波导的微波毫米波空间功率合成技术研究
Stock price forecasting model based on wave principle and clustering energy values of wavelet pocket;
基于波浪理论和聚类小波包的股价波动预测
The Application of SIW Filter on Ka- band Receiver Front-end
基片集成波导滤波器在Ka波段接收前端的应用
Ultrasonic Density Meter Design Based on Ultrasonic Echo Attenuation Theory
基于超声波回波衰减理论的超声波浓度计设计
Novel X-band dual-mode bandpass filter based on the substrate integrated waveguide
一种新型X波段基片集成波导双模带通滤波器
New Method for Fault Diagnosis of Rotating Machines Based on Harmonic Wavelet Filtering
基于谐波小波滤波的旋转机械故障诊断新方法
The Computation Method of Micro-Scale Slope Wave Number Spectrum Based on Wavelet Analysis
基于小波分析的微尺度波斜率波数谱计算
An optimized design of X-band slow-wave bandpass filter
基于慢波效应的X波段带通滤波器的优化设计
R waveform calibration and QRS waveform detection of B-splines-based biorthbogonal wavelets
基于B-样条双正交小波R波的标定和QRS波检测
Design of An X-Band Substrate Integrated Waveguide Bandpass Filter
X波段基片集成波导带通滤波器的设计
Surface-Related Multiple Attenuation Based on Wave Equation;
基于波动方程的自由界面多次波压制
The QRS Detection Based on Wavelet Transform;
基于小波变换的心电信号QRS波群检测
Measurement of Interharmonics in Power Systems Based on Wavelet Transform;
基于小波算法的电力系统间谐波测量
Assessing Harmonic Impedance by Synchronously Layered Distortion Waves;
基于畸变波形同步分层估计谐波阻抗
Research of Multiple Attenuation Method Based on Wave Equation;
基于波动方程的多次波压制方法研究