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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
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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
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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
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RAKE技术与CDMA系统相结合,能够带来系统容量和通信质量的极大提
高。根据军事通信中对设备便携性及低功耗的特殊要求,本文研究了一种便携式
基站的收发系统,重点研究了其中的RAKE接收部分。给出了系统的发送方案和
接收方案,对接收机部分所涉及的关键技术和算法,包括数字下变频技术、匹配相关技术、多径搜索技术、信道估计技术、解调及多径合并技术进行了较为详细的分析和说明。在此基础上,运用VHDL语言进行了硬件平台上FPGA部分的功能实现,并对整个系统进行了调试,给出了一些相关的仿真及测试
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在对永磁风力发电机的基本理论进行论述的基础上,分析了变转速变桨距控
制策略,并基于Matlab/Simulink建立了风力发电机模型,通过仿真分析了最大功率跟踪
和变桨距控制下发电机的性能。-this paper analyzes variable speed and variable pitch control strategy on the
foundation of discussing basic theory of permanent magnet wind turbine
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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
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In this paper Static Synchronous Compensator
(STATCOM) is used for voltage stability and the
compensation of reactive power. The STATCOM contains an
Insulated Gate Bipolar Transistor (IGBT) based voltage
source converter for voltage control a
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With increased penetration of wind power into electrical grids, DFIG wind turbines are largely deployed due to their
variable speed feature and hence influencing system dynamics. This paper presents simulation results of a Grid-connected
DFIG. A
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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
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it gives good insight about power electronics
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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
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混合有源电力滤波器在电铁谐波抑制中的应用与仿真研究1是一片不错的论文,值得借鉴-Hybrid Active Power Filter in Electrical Railway Application and Simulation Study 1 was a good paper, it is worth learning
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The doubly fed induction generator (DFIG) is widely
used in wind energy. This paper proposes a model-based predictive
controller for a power control of DFIG. The control law is derived
by optimization of an objective function that considers the
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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 that the ind
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This paper proposes a new MPPT controller. The proposed
MPPT controller is based on genetic algorithm (GA) optimized
artificial neural network (ANN). For the simulation purpose an
improved model of SPV is used. The MPPT is simulated and
studi
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In this paper, a novel approach for the design of power
converter for a microturbine is proposed. In the method, a unified
control scheme as well as a novel modular arrangement has been
developed such that the inverter circuit is capable of par
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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
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本文介绍了风电场仿真模型
在欧盟第七框架计划项目,风神的发展。该
想法是提供一种可公开获得的模拟
包装研究人员开发的农场级别控制
的解决方案。该软件也可以
自动生成一个风电场仿真模型在Matlab/
Simulink的基于涡轮参数和农场
几何。输入到农场模拟器是功率
设置单个涡轮机点。从输出
场仿真是电力生产,吊舱风速
速度和疲劳载荷(损伤等效荷载)
每个涡轮机。-This paper presents the wind farm
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This paper describes different power quality
problems in distribution systems and their solutions with
power electronics based equipment. Shunt, hybrid and
series active power filters are described showing their
compensation characteristics a
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本文提出了一种算法,根据不同的噪声容限分配数据位,从而实现不等错误保护(UEP)。 新的方法是基于非UEP分配算法。新算法设计通过集成一个新的SNR-排序方案,可抗非平稳脉冲噪声和信道变化。仿真结果表明,该高度保护的比特流分布在低信噪比的大量载波上,从而确保由非平稳噪声信噪比引起的变化,不会多少影响这些载波。此外,窄带干扰不会干扰大量的重要数据。-This paper proposes an algorithm that distributes
bits according to diffe
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