Description: 析了变速恒频双馈风力发电系统的工作原理。结合风力机特性和双馈发电机特性，说明了变速恒频运行方式下的最优风能捕获策略，并介绍了风力发电系统的滑模变结构控制、自适应控制、鲁棒控制和人工神经网络控制。总结了变速恒频风力发电系统的发展趋势。-Analysis of a Variable Speed Constant Frequency Wind Power Generation System works. Combination of wind turbine characteristics and the characteristics of doubly-fed generator, variable speed constant frequency shows the optimal operating mode to capture wind energy strategy, and introduced wind power generation system with variable structure control, adaptive control, robust control and artificial neural networks control. Summarizes the VSCF wind power system trends. Platform: |
Size: 429056 |
Author:wuxing |
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Description: Fuzzy Logic Based Intelligent Control of a Variable
Speed Cage Machine Wind Generation System Platform: |
Size: 155648 |
Author:dida |
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Description: 很经典的卞松江老师的博士论文
详尽分析了级联无刷双馈电机数学模型及其矢量控制策略-Study on the Technology of variable-speed constant-frequency wind power generation Platform: |
Size: 5724160 |
Author:木鱼 |
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Description: 随着电力电子技术的发展，变频调速异步电机越来越广泛地应用在各种工业领域。而变频调速系统的使用也给电力电子与电气传动学科带来了新的活力和研究课题，本文从变频调速异步电机的设计出发，首先将传统异步电机的设计方法与变频调速异步电机的设计方法进行了比较。指出了传统异步电机设计方法在变频调速异步电机设计中存在的局限性。同时，本文详细而系统地分析了变频调速异步电机中时间谐波和空间谐波的产生机理，论述了时间谐波和空间谐波对异步电机运行性能的影响，以及对异步电机绝缘系统的损害。-Following with the development of power electronics technology, the inverter-driven induction motor is widely used in all kinds of industry field. The utility of variable frequency and adjustable speed systems brings a new research area and activity of power electronics and motor drive subject, this paper begins with the design of inverter-driven induction motor. Firstly, compare the design method of inverter-driven induction motor with that of conventional induction motor. And point out the limitations of design method of conventional induction motor which is used in the design of inverter-driven induction motor. At the same time, the generation mechanics of time and space harmonics in the inverter-driven induction motor is analyzed in details. The influences of both types of harmonics to the operation of induction motor are described, especially the harm to the insulation structure of induction motor. Platform: |
Size: 266240 |
Author:WMW |
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Description: 构建了一个包含风速模型、功率转换模型、传动链模型等三个部分的10MW变速直驱型风力发电机组的标么值的Matlab模型.传动链模型是基于二质量块——轴数学模型所构建的动态模型.通过标么值的转换及灵活的参数调整,该模型能较准确地模拟各种变速直驱型风力发电机组.仿真分析获取了最大功率跟踪特性曲线,并得到了风力发电机组的四个工作区.结果还能表明,电负荷电磁阻力矩能动态地调整电机转子转速,从而在低速风时能实现风能最大功率的追踪.同时,风涡轮的桨距角能控制高速风的利用率,使风涡轮机工作在额定功率下,有效地防止整个风力发电系统的机械和电负荷容量的过载冲击.作为原动力模型,该模型有助于进一步研究变速直驱风力发电系统的功率特性和并网发电控制技术.-Matlab model constructed a unit value 10MW direct drive variable speed wind turbine model three-part wind power conversion model, models, etc. contained in the transmission chain drive chain model is based on two mass- Axis constructed mathematical models the dynamic model by converting the unit value and flexible parameter adjustment, the model can accurately simulate the various speed direct-drive wind turbine simulation analysis to obtain the maximum power tracking characteristic curve and get the wind turbines four workspaces results also show that the electrical load electromagnetic drag torque motor rotor speed can be adjusted dynamically, resulting in low speed wind when the wind can achieve maximum power tracking. Meanwhile, wind turbine pitch angle can be controlled using high-speed wind rate, so that the wind turbines operate at rated power, effectively preventing overloads mechanical and electrical load capacity of the entire wind power generation system and as the driving f Platform: |
Size: 932864 |
Author:李雷 |
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Description: 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力发电系统进行了仿真。对双馈发电机的解耦控
制进行了仿真。并列举了典型的风力发电系统仿真实例。
-With the wild spread of concept of continuable development
，
wind power
generation, as a renewable resource, is getting fast development. The simulation of
wind power system play a important role in yield of analysis of wind power
generation system, the quantity of wind power generation , power generation system.
This paper establish wind model, the wind turbine rotor model, drive trains
model, induction machine model
，
the electric power electron parts of wind power
generation model, Then using soft of MATLAB, we realize the simulation. It
introduces the control technology of wind turbine, mainly including variable blade
pitch and variable speed control of wind turbine. Using Matlab simulate these. And
lists an example of practical applying. Platform: |
Size: 1448960 |
Author:孙攀 |
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Description: This paper describes a small wind generation system where neural network principles are applied for wind speed estimation and robust maximum wind power extraction control against potential drift of wind turbine power coefficient curve. The new control system will deliver maximum electric power to a customer with lightweight, high efficiency, and high reliability without mechanical sensors. A turbine directly driven permanent magnet synchronous generator (PMSG) is considered for the proposed small wind generation system in this paper. The new control system has been developed, analyzed and verified by simulation studies. Performance has then been uated in detail. Finally, the proposed method is also applied to a 15 kW variable speed cage induction machine wind generation (CIWG) system and the experimental results are presented. -This paper describes a small wind generation system where neural network principles are applied for wind speed estimation and robust maximum wind power extraction control against potential drift of wind turbine power coefficient curve. The new control system will deliver maximum electric power to a customer with lightweight, high efficiency, and high reliability without mechanical sensors. A turbine directly driven permanent magnet synchronous generator (PMSG) is considered for the proposed small wind generation system in this paper. The new control system has been developed, analyzed and verified by simulation studies. Performance has then been uated in detail. Finally, the proposed method is also applied to a 15 kW variable speed cage induction machine wind generation (CIWG) system and the experimental results are presented. Platform: |
Size: 691200 |
Author:shatha |
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Description: Doubly fed induction generators (DFIGs), often organized
in wind parks, are the most important generators used
for variable-speed wind energy generation. Platform: |
Size: 69632 |
Author:sam |
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Description: A Novel Direct Torque Control of Doubly-Fed
Induction Generator Used for Variable Speed
Wind Power Generation Platform: |
Size: 326656 |
Author:meziane |
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Description: 这是一个变速变桨距控制的9MW风力发电并网系统（DFIG），先运行.m文件，设定Ts=5e-6s。亲测有效(This is a variable speed pitch control 9MW wind power generation grid connected system (DFIG). First, run the.M file and set Ts=5e-6s. Pro test effectiveness) Platform: |
Size: 98304 |
Author:最帅的胖子 |
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Search - variable speed generation