-
yckz
说明: 20 世纪70 年代以来,人们从工业过程的特点出发,寻找对模型精度要求不高而同样能实现高质量控制性能的方法,预测控制就是在这种背景下发展起来的。预测控制技术最初由Richalet 和Cutler 提出[1 ] ,它最大程度地结合了工业实际的要求,综合效果好,已经在理论和应用方面取得了显著进展,各种预测控制算法不断地产生并得到发展。预测控制算法具有三大本质特征:预测模型、滚动优化和反馈校正[2 ] 。它是不断滚动的局部优化,而非全局最优。预测控制的特点:建模方便 采用非最小化描述的离散卷积和模型,信息冗余量大,有利于提高系统的鲁棒性 采用滚动优化策略,使模型失配、畸变、干扰等引起的不确定性及时得到弥补,从而得到较好的动态控制性能 可推广到有约束条件、大迟延、非最小相位以及非线性等过程,对模型精度要求不高,跟踪性能良好,更适应于复杂工业过程控制。
(err)
- 2020-12-04 10:59:25下载
- 积分:1
-
DynamicPowerQualityTestingTechnology
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检测谐波和无功功率的目的。 (This paper, firstly, introduces the basic structure and principle of APF, and then makes comparison among some conventional harmonics detections methods. Secondly, contraposes the limitation of the traditional harmonic current detecting method based on neural network, presents the method that combines the neural network and auto adaptive harmonic current detecting method based on the principle of noise each other eliminating.As the characteristics that are small calculative quantity, fast converge, without local minimal point of Redial Basis Function (RBF), this dissertation forms a new harmonic current detecting method based on RBF. The simulation results show that the method has many advantages, such as good dynamic response, high accuracy. At last, A system is designed to verify the proposed APF scheme .The results of simulation show that the proposed APF scheme is practical and can detect harmonics and reactive power effectively. )
- 2009-05-03 10:26:45下载
- 积分:1
-
Ansys材料库(详细力学参数)
说明: Ansys材料库(详细力学参数),包含ANSYS库中的所有材料参数,如弹性模量、密度等(Ansys material library (detailed mechanical parameters), including all material parameters in ANSYS library, such as modulus of elasticity, density, etc.)
- 2020-06-22 20:20:01下载
- 积分:1
-
PASTandPASTd
宾.杨(Bin Yang)的PAST算法(投影近似子空间跟踪算法)原文翻译.(PAST rotation invariance is used to solve the angle signal, This algorithm uses the minimum two multiplication to estimate the incidence angle)
- 2009-05-10 19:42:39下载
- 积分:1
-
Topology_Control_in_Wireless_Ad-Hoc_and_Sensor_Net
一本讲解在无线传感器网络中如何进行拓扑控制的书籍,老外写的,wiley出版社的产品,对研究WSN的人应该很有帮助(Explain in a wireless sensor network topology control in how the books written by foreigners, wiley publishing products, the study should be helpful in WSN)
- 2008-04-07 18:55:45下载
- 积分:1
-
4-10
这是清华版c++程序设计 第四章课后题第10题(This is the Tsinghua version c Program Design Chapter IV title after title No. 10)
- 2008-01-05 13:47:01下载
- 积分:1
-
englishmoban
英文投稿信的几个模版和实例(Received a letter in English a few templates and examples)
- 2007-11-24 14:21:27下载
- 积分:1
-
Computer-composition-principle
清华大学.计算机组成原理。课堂ppt,帮助自学的人。要自学组成的可以看看(Tsinghua University Computer Organization Principles. Classroom ppt, helping learners. To be able to look at the self-composed)
- 2015-11-17 18:13:21下载
- 积分:1
-
Simulink仿真及代码生成技术入门到精通.part1
说明: SIMULINK入门详细介绍,非常实用。(SIMULINK INTRODUCTION.)
- 2020-01-20 22:02:15下载
- 积分:1
-
新GRE阅读理解36套
说明: GRE复习资料,祝各位亲们复习愉快!!!(GRE revision material)
- 2019-06-01 16:18:21下载
- 积分:1