搜索资源列表
-
0下载:
随着新的数学工具小波分析的实用化为基于NN负荷预测模型性能的改善提供了理论依据对于电力系统负荷非线性时间序列的辨识在预测方法研究中应给予重视在本文所用的基于小波原理和NN融合的预测原理是具有强的非线性时间序列的辩能力由研究和仿真表明它能有效提高预测的精度-with new mathematical tools wavelet analysis based on NN into practical load forecasting model to improve the performance
-
-
1下载:
本文首先介绍了有源电力滤波器的基本结构和工作原理,并对一些常规的谐波电流检测方法的优缺点进行了比较。其次,针对传统的谐波电流检测方法的缺陷,提出将神经网络与基于噪声抵消原理的自适应谐波检测相结合,利用径向基函数运算量小、收敛快、无局部极小值等优点,构造了一种基于径向基函数神经网络的谐波电流检测方法,仿真结果表明该检测方法具有很好的动态响应及畸变电流检测精度。最后,设计了一套实验系统,对本文所采用的系统方案进行了实验验证。仿真表明,本文所采用的有源电力滤波器检测系统方案切实可行,能够较好地实现动态
-
-
0下载:
本文主要介绍以EP1C3/EP1C6芯片进行十字路口的交通控制灯的设计,该系统可控制2个方向的红、黄、绿三盏灯,让其按特定的规律进行变化。用EP1C3/EP1C6作为交通控制灯的主控芯片,采用VHDL语言编写控制程序,利用MAX+PlusⅡ对设计结果进行仿真,发现系统工作性能良好。据此设计而成的硬件电路,也实现了控制要求。该设计展示了VHDL语言的强大功能和优秀特性。-This paper introduces the crossroads EP1C3/EP1C6 chip design of
-
-
0下载:
OnPerformanceLimitsofDFTSpreadOFDMSystems
DFT Spread OFDM has been proposed recently to
reduce the Peak to Average Power Ratio (PAPR) of conventional
OFDM transmission. Besides PAPR reduction, an important
implication of DFT Spreading is t
-
-
1下载:
同步电机模型的MATLAB仿真,本文针对同步电机中具有代表性的凸极机,再使用MATLAB中用于仿真模拟系统的SIMULINK对系统的各个部分进行封装及连接,系统总体分为电源、abc/dq转换器、电机内部模拟、控制反馈四个主要部分,并为其设计了专用的模块,同时对其中的一系列参数进行了配置。-Synchronous motor model of the MATLAB simulation, this paper, synchronous motor has a salient-pole machin
-
-
0下载:
基于变速恒频双馈风力发电系统的理论分析,文中将应用MATLAB/Simulink建立整个系统的模型,主要包括风力机、双馈发电机(含转子侧和网侧变换器)、控制器(含网侧变换器控制器、转子侧变换器控制器)。通过建立的模型对仿真波形进行分析,验证模糊控制器的可行性。-Based VSCF doubly fed wind power generation systems theory, this paper, the application of MATLAB/Simulink model for th
-
-
0下载:
本文首先介绍了电力系统的潮流计算的过程和方法步骤,然后建立模型进行仿真-This paper introduces the trend of power system and methods of computation steps in the process, and then build the model for simulation
-
-
0下载:
This paper presents three strategies for reactive power control in wind farms with STATCOM. First, the
STATCOM system and its applications in electric power systems and wind farms are shown. Second, the modeling done of the
wind farm, the STATCOM
-
-
0下载:
This paper presents the Direct Power Control of
Three-Phase Matrix Converters (DPC-MC) operating as Unified
Power Flow Controllers (UPFC). Since matrix converters allow
direct AC/AC power conversion without intermediate energy
storage link, t
-
-
0下载:
风力发电机组不同于火电等传统发电机组的最大之处
在于其原动机功率的本质不可控,这是由风速的易变性和不
可控性造成的。风速状况对风力发电系统的性能有着重要的
影响,也使得风速模型成为风力发电系统仿真模型的重要部
分。该文针对风速随机变化的特性,在风速统计特性研究的
基础上,用自回归滑动平均(ARMA)方法建立了具有一定
功率谱密度特性的风速模型。对该模型所模拟的风速序列进
行了分析和验证,并与现有仿真程序中风速模型的结果进行
了对比,结果表明该文提出的ARMA模型能
-
-
0下载:
An optimal coordinated control strategy between
generator and VSC HVDC system is proposed in this paper. In
the studied system, a generator is connected with infinite bus
through parallel AC lines and VSC HVDC. The simulation
results show tha
-
-
0下载:
随着可持续发展理念的深入,风力发电作为可再生能源得到了快速的发
展。风力发电系统的仿真在风力发电系统分析,发电量分析和电网的能量的
分析中都起到了非常重要的作用。
本文应用 MATLAB 软件,对风速、风轮、传动机构、发电机、与风力发
电相关的电力电子系统建立了数学模型,并进行仿真进方面的研究,得到了
可供分析的仿真结果。介绍了风力发电机组的控制技术,主要是变桨距控制
和发电机变速控制,并利用 MATLAB 软件对变桨距控制系统和低于额定风速
和高于额定风速时的变速风
-
-
0下载:
With the development of power systems and the
extensive application of nonlinear elements in the electricity
system, the problem of ferroresonance do harm to the network
and electricity facilities has become more prominent. Wavelet
analysis h
-
-
0下载:
This paper presents the modeling and simulation of a
high-speed single-shift micro turbine generation system. This
unit has four parts: a compressor-turbine, a permanent magnet
generator, a three phases bridge rectifier and inverter. The
mode
-
-
0下载:
Distributed Generators (DGs) in a microgrid may operate in three different reactive power control strategies, including PV, PQ and voltage droop schemes. This paper proposes a new stochastic programming approach for reactive power scheduling of a mic
-
-
0下载:
An interval type-2 fuzzy logic controller (IT2FLC) is proposed in this paper for the design of power system stabilizer (PSS) of a single machine infinite bus (SMIB) and multi machine infinite bus (MMIB) system incorporated with an AC1A exciter. For c
-
-
0下载:
This Paper consists on the study of one part of wind energy system conversion, its AC side.
Renewable resources are in constant fluctuation. This situation could put in peril the energizing efficiency towards a given demand requirement.
Therefor
-
-
0下载:
在电力系统故障仿真实例介绍了MATLAB软件在电力系统中的应用,以及利用动态仿真工具Simulink和电力系统工具箱PSD-MATLAB in the power system fault simulation example this paper introduces the application of MATLAB software in the power system, as well as the use of dynamic simulation tools Simulink an
-
-
0下载:
ABSTRACT
In this paper, the design and implementation of OFDM system along with Multi-Point Square Mapping combined with PTS (M-PTS) technique has received much attention in reducing the high peak to average power ratio (PAPR) of Orthogonal Frequen
-
-
2下载:
对电力系统小干扰稳定性进行分析的方法大致可以分为以下几种:数值仿真方法、建立在线性模型基础上的分析方法、小干扰稳定域分析方法、非线性理论分析方法和计及模型不确定性的分析方法。对小干扰稳定性问题可以采用线性模型进行研究,这种线性模型是将描述系统动态行为的微分方程和代数方程在稳态运行点处线性化后得到的。目前,建立在线性模型基础上的电力系统小干扰稳定性分析方法主要有两种:以状态空间模型描述为基础的特征值分析法和以传递函数矩阵为基础的频域分析法。本文采用全部特征值分析法(QR 法)对9节点系统在稳态处进
-