相角

基于LS-SVM的电力系统参考相角预测

Prediction of Reference Phase Angle in the Electric Power System Based on LS-SVM

介绍了九电平级联H桥逆变器的拓扑结构及其常用的载波调制方式，即相角移位调制和电压移位调制。

The topological structure of nine-level cascaded H-bridge ( CHB ) inverter and its commonly used modulation modes , i.e. , phase angle shifted modulation and voltage-shifted modulation , are presented .

GPS定时技术在电力系统电压相角测量中的应用

Application of GPS Timing Technique to the Phase-Angle Measurement in Power System

基于GPS的电压相角测量算法研究

The Study of Voltage Phase Angle Measurement Algorithm On GPS

得到的相角同结构经最小二乘修正后的最后相角φc符合得很好，从而首次实现了∑4关系式在确定晶体结构中的应用。

Therefore , we have realized the first application of ∑ _4 relationship for the determination of crystal structure .

一种基于相角裕度设计的自适应PID控制器

An Adaptive PID Controller Based on Phase Margin Design

GPS技术在实时相角测量中的应用

Application of GPS in Real-Time Phasor Measurement

基于BP网络的电动汽车用无刷直流电机相角控制技术研究

Study on BP Neural Network Based Phase Control of Brushless DC Motor for Electric Vehicles

V型人工电源网络规范附加阻抗相角的探讨

Discussion on the Addition of Impedance Phase angle to the Specification of AMN V-networks

基于GPS相角测量装置站端监测管理系统的研究与开发

Research and Development of the Monitoring and Management Substation System for the Phasor Measurement Unit Based on GPS

提出一种基于主导极点和相角裕度二性能指标的简单有效的PID参数整定方法。

A simple PID tuning method based on dominant pole placement and phase margin specification is proposed .

FFT测量周期信号的幅值与相角修正

The Correct Value Of Scope and Phase Angle Using FFT Measure Periodic Signals

用FFT测量周期信号相角差及其误差分析

The Measurement of Phase Angle Difference between Periodic Signals Using FFT and Its Error Analysis

在时滞系统PID控制闭环稳定的基础上，进一步引入频域稳定裕量：幅值裕度、相角裕度。

In condition of the time-delay systems closed-loop stability , introduce the frequency stability margin : gain margin and phase margin .

基于互相关函数相角特征的RBF神经网络来波方位估计

Direction of Arrival Estimation Approach Based on Phase Angle Feature of Correlation Function Using RBF Neural Networks

利用GPS技术提供的高精度标准时基，研制了电力系统相角变送器，实现了相角直接精确测量。

A phasor measurement device was developed by using the time base of high accuracy supplied by the global positioning system ( GPS ) .

力学Berry相因子和相应的经典拓扑相角

The mechanical Berry phase and corresponding classical topological phase angle

介绍了一种基于GPS高精度全网统一时钟的稳态相角测量的硬件方案。

The technical method is introduced in this paper for the steady state phase angle measurement and the research aspects in applications based on GPS .

在作FFT后，求出两个序列的相角差，即可得到相角计算的校正公式，消除非整周期采样所造成的泄漏误差，提高计算精度。

The method eliminates the leakage error caused by non inter period sampling and improves the precision of calculation .

用基于给定的相角裕度和幅值裕度的方法给出了PID控制器参数的初值。

Based on specified phase and amplitude margins ( SPAM ), using fuzzy inference method , the PID parameters can be adjusted adaptively on line .

可以在参数空间直接绘制PI控制器的稳定参数边界曲线、相角裕度和幅值裕度曲线。

The boundary curves of stabilizing region and the phase and gain margin curves could be drawn directly in parameter space .

通过遍历比例增益稳定范围内所有的值，从而给出一种确定幅值相角裕度约束下时滞系统PID参数三维稳定域的算法。

Through traverse all values of proportional gain , three-dimensional PID control parameters stability regions under the section of gain and phase margin can be determined .

提出了基于复数小波相角系数的copula多维模型。

Multivariate copula models based on the phase coefficients of complex wavelet was proposed .

Bode图相角峰的变化最具代表性。

The change of phase in the Bode graph is typical .

提出了在PID条件下闭环辨识的方法，运用频域法，通过有关模和相角的关系，辨识出假定二阶过程模型的有关参数。

A method of closed-loop identification under PID and identifying parameters of proposed second-order process model through relationship of mode and phase in frequency domain method are proposed .

基于GPS的相量测量装置（PMU）可以直接测得节点电压相量，包括电压有效值和相角。

GPS-based phasor measurement unit ( PMU ) can measure the voltage phasor directly , including the effective value and phase angle .

求出了各类局域模的波函数和自旋偏离的相角分布，其相应的能级与参量J′S′/JS的关系均由曲线表出。

The wave functions and the curves of the energy levels against the parameter J 'S ' / JS of these modes are obtained .

第三，利用ADAMS软件对交流接触器操动机构进行了不同合闸相角、不同励磁电压下动态特性的可视化仿真。

Thirdly , visual simulation of actuating mechanism of AC contactor was carried out using ADAMS under different switch phase angle and excitation voltage .

用WKB近似法计算库仑场的分波相角

Calculates Angle of Electrostatic Field with WKB Method

借助MATLAB软件对不同相序、不同合闸相角条件下，电动机起动过程的电压及电流波形进行仿真研究，并与实验结果进行比较，找出智能化可通信无弧电动机起动器无弧起动的最佳控制方案。

Using MATLAB software , the dissertation analyzes three voltage and current waveforms under different conditions such as different closing phase angle and different phase sequence during the starting process of the motor .