-
three
大功率分布式发电系统通常采用三相逆变器并网，由于三相逆变器系统参数耦合，传统方法设计的控制器算法复杂。在d。q坐标系下为双模式三相并网逆变器的独市和并网模式建立了数学模型．采用新的解耦方法，依据独立和并网模式控制系统超调量越小，模式切换过程中被控量的波动越小。切换过程就越平滑的原则。完成了两种模式的控制器设计，即分别应用积分环节、比例环节即可将独立模式和并网模式整定成典型的二阶系统，控制器设计简单．能取得优良的动、静态特性。仿真与实验验证了设计方法的正确性和可行性。(It is necessary to research on three—phase grid-connected inverter which a8 an important part of distributed
generation．The parameters of three—phase inverter are coupling．The traditional design algorithm of the controller is
complicated．The mathematicM models of stand—alone mode and grid—connected mode are established in d，q fhme．
Based on the principle that the lower overshoot of the controller system，the smaller fluctuation of the controlled vailables，
the smoother in transfer，controllers of two modes are designed separately，as integral and proportional regulators
are separately added to stand-alone mode and g而d—connected mode．The controller has good dynamic and static char—
acteristics．Simulation and experimental results varify the correctness and feasibility of the proposed method．)
- 2011-05-17 15:13:08下载
- 积分：1
-
yuyin
自适应信号处理中 LMS RLS算法进行语音消噪(LMS RLS adaptive signal processing algorithms for speech denoising)
- 2011-08-09 23:20:25下载
- 积分：1
-
shangzhifa
根据信息熵建立分配模型，接着用熵值法进行合理分配的程序(Established based on information entropy distribution model, followed by entropy reasonable allocation procedures)
- 2014-08-18 22:56:30下载
- 积分：1
-
cos--sin
t - time series
y - value of series at time t
w - cycle length, defined by user based on prior knowledge of time
series
alpha - type I error used for cofidence interval calculations. Usually
set to be 0.05 which corresponds with 95 cofidence intervals(t- time series
y- value of series at time t
w- cycle length, defined by user based on prior knowledge of time
series
alpha- type I error used for cofidence interval calculations. Usually
set to be 0.05 which corresponds with 95 cofidence intervals)
- 2015-01-24 15:27:48下载
- 积分：1
-
FaceReconstruction
本程序是针对UCI图像数据集上的图像进行重构与识别的实验(This procedure is for the UCI data sets on the image to reconstruct the image and recognition of the experiment)
- 2010-06-21 16:43:17下载
- 积分：1
-
normal
Eigenvalues and eigenvectors of a normal matrix A.
- 2010-03-06 17:24:16下载
- 积分：1
-
Matlab-pingfang
自己在网上看到的一个关于平方根的求值方式，可以参考下(Themselves in line to see a square root to be evaluated on, you can refer to the following)
- 2011-10-08 13:32:50下载
- 积分：1
-
untitled2
说明： 此为三相桥式全控整流电路的simulink模型搭建(Three-phase bridge type full control rectifier circuit)
- 2019-10-13 23:01:44下载
- 积分：1
-
wind_power_in_power_systems
研究风电接入对电力系统影响的经典书籍,适用于相关专业人士(classical text book to learn about winder power and its affect on power system)
- 2012-01-19 23:36:37下载
- 积分：1
-
qpsk
摘 要:根据HFC网络上行信道的特性,建立了信道模型 分析了上行信道中存在的各种噪声对QPSK
调制技术的影响。结果表明在C /N (传输信道载噪比)较低的情况下,采用QPSK调制方式,可以提高系
统的抗干扰能力。
关键词: QPSK 光纤同轴电缆混合网 上行信道 噪声(Abstract: HFC network in accordance with the characteristics of the uplink channel, the establishment of a channel model an analysis of the various uplink channel noise on the impact of QPSK modulation. The results show that the C/N (transmission channel carrier-to-noise ratio) lower, the use of QPSK modulation, can improve the system of anti-interference ability. Keywords: QPSK hybrid fiber coaxial cable network uplink channel noise)
- 2009-04-12 15:45:03下载
- 积分：1
