Description: 风力发电系统中PWM并网逆变器的研究，希望对大家有所帮助-Wind power generation system and network PWM inverter research, I hope all of you to help Platform: |
Size: 261120 |
Author:李曼 |
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Description: 在理 论 分 析与仿真的基础上，本文对上述三种控制策略进行了实验研究，设计了控制系统的硬件电路和DSP程序。实验结果给出了三种控制方法下的稳态波形与电流谐波分析，系统动态响应波形和双重化结构谐波抑制的验证。实验结果与理论分析吻合，表明一定控制下的PWM 变流器具有较好的稳态与动态工作性能，适用于大功率风力发电应用场合。-In the theoretical analysis and simulation based on this article on the above three control strategies were studied, the design of the control system hardware circuit and the DSP program. The experimental results give the three control methods under steady-state waveform and current harmonic analysis, the system dynamic response waveform and harmonic suppression structure of double authentication. The experimental results coincide with theoretical analysis, shows that under the control of PWM converter has good steady-state and dynamic performance for high-power wind power generation applications. Platform: |
Size: 2764800 |
Author:weipeiyong |
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Description: 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 switch-by-switch representation of the PWM converters Platform: |
Size: 205824 |
Author:rafath |
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Description: 本文设计了1.SMW双馈型风机变频器的整体硬件电路,满足风机整体工作的稳定
性和高效率"为实现LVRT功能,设计了一种新的CROWBAR电路,并对电路的控制
电路做了改进"研究了1.SMW双馈型风机变频器系统的控制策略,转子侧变换器采用
定子磁链定向矢量控制技术,网侧PWM变换器采用电网电压定向矢量控制技术,构建
了电流内环!电压外环的双闭环PI控制系统,导出了采用转子有功电流和无功电流独
立解祸来控制有功功率和无功功率的策略-This paper designs 1.SMW doubly-fed wind turbine inverter' s overall hardware circuit, meet fans overall stability and high efficiency " to achieve LVRT function, design a new CROWBAR circuit and control circuit of the circuit do improvement " study 1.SMW double-fed wind turbine inverter system control strategy, the rotor side converter using the stator flux oriented vector control technology, grid-side PWM converter using grid voltage oriented vector control technology to construct the inner current loop! Dual outer voltage loop PI control system is derived using the rotor active current and reactive current independent solutions Woe to the active and reactive power control strategy Platform: |
Size: 7608320 |
Author:董敏 |
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Description: The generating systems use Doubly-Fed Induction Generators (DFIGs) to achieve high
conversion efficiency and to reduce the installation cost. This paper presents a modeling and Maximum
Power Point Tracking (MPPT) control method of DFIG-based variable-speed wind energy conversion
system. The generator considered is a wound rotor induction machine whose stator is connected directly
to the grid and the rotor is fed through back-to-back Pulse-Width Modulation (PWM) converters. Stator
flux-oriented vector control is applied to control the active and reactive current loops independently. The
MPPT control method in a Wind Energy Conversion System (WECS) is proposed. The proposed control
solution aims at driving the position of the operating point near to optimality. This is a very important
aspect to maintain DFIGs efficiently in a variable wind speed. The wind generator is modeled in RSCAD
program which is interfaced with the Real Time Digital Simulator (RTDS). Platform: |
Size: 678912 |
Author:menaouer |
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Description: 变速恒频双馈风力发电系统双PWM变流器技术的研究,详细研究了双馈电机和PWM整流器的状态空间方程和控制算法，值得学习!-Research VSCF doubly-fed wind power generation system dual PWM inverter technology, a detailed study of the double-fed motor and PWM rectifier control state space equations and algorithms, it is worth learning! Platform: |
Size: 905216 |
Author:fengyi |
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Description: 对机侧系统的仿真包括系统模型的搭建、化简和控制算法的设计。直驱式永磁同步风力发电系统的机侧模型包括风力机模型、永磁同步电机模型和机侧PWM变换器模型。永磁同步电机和机侧PWM变换器模型的数学模型可以化简在一个数学方程中，简化方框图的搭建。控制器的设计目标是控制同步电机的转速实现最大风能的跟踪。-Simulation of the machine side of the system, including structures, simplification and control algorithms designed system model. Direct-drive-side model of permanent magnet synchronous wind power generation system includes a wind turbine model, permanent magnet synchronous motor model and machine-side PWM converter model. Mathematical model of permanent magnet synchronous motors and machine-side PWM converter model can be simplified in a mathematical equation, a simplified block diagram of the building. The controller is designed to control the synchronous motor speed to achieve maximum wind power tracking. Platform: |
Size: 18432 |
Author:张敏 |
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Description: PMSG网侧的结构包括逆变器、PWM发生器、电压矢量控制。采用电压外环和电流内环的双闭环控制。设计电流控制器时，希望稳态电流无静差，而且动态要求上，永磁直驱风力发电系统中不允许在电流调节过程中有太大的电流超调.-PMSG network side structure includes an inverter, PWM generators, voltage vector control. Using a voltage outer and inner current double closed loop control. Design current controller, hope no static error steady-state current, and the dynamic requirements, permanent magnet direct drive wind power system does not allow much of the current overshoot in the current regulation process. Platform: |
Size: 143360 |
Author:张敏 |
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Description: 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.
Therefore, in order to maximize the efficiency of the renewable energy system, it is necessary to track the maximum power point of the input source, a study established under MATLAB/Simulink platform. For the wind system, the maximizing is assured while considering the optimal power curve as load characteristic, with the knowledge of the turbine characteristic Cp (λ).
Then, this work elaborates the analysis and simulation of a low speed Permanent Magnet Synchronous Generator (PMSG) driven by a vertical wind turbine through a Pulse-Width Modulation (PWM) voltage inverter, independently of the DC components of the wind system conversion, using MATLAB computer simulation. -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.
Therefore, in order to maximize the efficiency of the renewable energy system, it is necessary to track the maximum power point of the input source, a study established under MATLAB/Simulink platform. For the wind system, the maximizing is assured while considering the optimal power curve as load characteristic, with the knowledge of the turbine characteristic Cp (λ).
Then, this work elaborates the analysis and simulation of a low speed Permanent Magnet Synchronous Generator (PMSG) driven by a vertical wind turbine through a Pulse-Width Modulation (PWM) voltage inverter, independently of the DC components of the wind system conversion, using MATLAB computer simulation.
Platform: |
Size: 192512 |
Author:zakary |
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Description: 基于双PWM变流器的直驱永磁风力发电系统的建模与仿真，本人的毕业设计，波形良好，运用SVPWM-Modeling and Simulation of direct drive permanent magnet wind power generation system based on double PWM converter, my graduation design, waveform is good, the use of SVPWM Platform: |
Size: 28672 |
Author:张梦 |
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Description: 完整的永磁直驱风电系统模型，包括风轮机，发电机，双PWM变流器，控制系统等-Complete permanent magnet direct drive wind power system model, including wind turbines, generators, dual PWM converters, control systems, etc. Platform: |
Size: 38912 |
Author:黄纯军 |
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Description: 本系统通过对直流小风扇风速的调节实现对风板转角的控制，使风板转角能够随风速变化而改变，且能快速达到设定角度并稳定。IAP15F2K61S2单片机为控制核心，通过键盘设定风板板角度 1602实时显示风板当前角度。单片机输出PWM波控制风扇的风速，通过GY521mpu-6050测量风板的倾角反馈至单片机，采用PID控制经典算法，使系统实现精确控制，然后微调小风扇的转速改变风速的大小使风板角度达到稳定。最终实现在悬挂重物的情况下风板能达到设定角度控制，且最终绝对值误差不超过5度.(The system realizes the control of the wind board angle through the regulation of the wind speed of the DC small fan, so that the angle of the wind plate can change with the speed of the wind, and can reach the setting angle quickly and stably. IAP15F2K61S2 single chip microcomputer for the control of the core, through the keyboard set board angle, 1602 real-time display of the current angle of the wind board. The wind speed output PWM wave control MCU fan, through the GY521mpu-6050 angle measurement of wind plate feedback to the microcontroller, using PID control algorithm to make the system achieve precise control, then fine tune small fan speed change the wind speed of the size of the wind angle stable plate. Finally, in the case of heavy loads, the wind power panel can achieve the set angle control, and the final absolute error is not more than 5 degrees) Platform: |
Size: 28768256 |
Author:杨洋阳小小
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Description: 该系统为一个帆板控制系统，通过对风扇转速的控制，通过调节风力大小达到改变帆板角度的目的。本系统以AT89C52单片机作为系统的核心控制芯片，利用ADXL345 三轴加速度传感器来的采集、处理帆板角度，选用中速轴流风机电机作为风扇的制动源，系统显示采用LCD12864液晶，用于实时显示帆板的角度大小。
对于关键的电机驱动电路，经过充分的比较与论证，最终选用驱动模块L298N，通过单片机输出PWM脉冲，更好地实现了电机的调速；并且加入PID控制，实现了控制角度的优化。最后经过多次测试表明，系统完全达到了设计要求，不但完成了所有基本和发挥部分的要求，并增加实现了实时显示占空比全程变化的功能。(The system is a windsurfing control system. Through the control of fan speed, the angle of windsurfing can be changed by adjusting the wind power. This system uses AT89C52 chip as the core of the system control chip, angle acquisition and processing using ADXL345 three axis acceleration sensor array to the selection of medium speed axial fan motor as the braking source fan system, using LCD12864 liquid crystal display panels, the size of the angle for real-time display.
The key to the motor drive circuit, through the comparison and discussion of full, final selection of L298N driving module, through the microcontroller output PWM pulse, better realize the motor speed; and adding PID control, realize the optimization of control angle. Finally, several tests show that the system has fully met the design requirements, not only to complete all the basic and play part of the requirements, and increase the real-time display of duty cycle changes in the entire function.) Platform: |
Size: 195584 |
Author:王仕刚
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Description: 风力机 + 同步发电机 + 背靠背简化PWM(Wind turbines plus synchronous generators are connected to the power grid by simplifying the PWM's back to back system.) Platform: |
Size: 22528 |
Author:VictorWs |
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