Description: 双馈变速恒频风力发电系统的空载并网控制策略-Doubly-fed VSCF wind power generation system of no-load and network control strategies Platform: |
Size: 1202176 |
Author:wangmeng |
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Description: 变速恒频双馈风力发电系统的研究 采用定子磁链定向的矢量控制方法-VSCF doubly-fed wind power generation system using the stator flux-oriented vector control method Platform: |
Size: 2889728 |
Author:wangmeng |
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Description: 基于Matlab按转子磁链定向矢量控制系统的仿真.-Based on Matlab by the rotor-flux-oriented vector control system simulation. Platform: |
Size: 615424 |
Author:周雪婵 |
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Description: 首先提出了基于微分几何控制理论的双馈发电机非线性多输入多输
状态反馈解藕控制方案，通过非线性坐标变换和非线性状态反馈，使双
发电机的磁链和转速两个子系统实现了动态完全解藕。其次采用基于定
磁场定向的双馈发电机矢量控制，实现定子侧有功功率和无功功率的解藕
为了消除交叉藕合电动势对发电机参数的影响，采用内模控制解藕控制
案，使系统具有良好的输出动态性能。最后在分析双馈发电机的数学模
和矢量控制的基础上，提出了一种基于模型参考自适应方法的定子、转
磁链观测、发电机转速估计和转子电阻辨识算法，应用Lyapunov原理证
了估计的收敛性，并应用于上述解藕控制方案中。在对算法进行理论推
的基础上，应用Matlab/simulink，对各个算法和系统进行了仿真，检验了
算法和控制方案的可行性。
-First proposed nonlinear multi-input multi-input state feedback the decoupled control programs through nonlinear coordinate transformation and nonlinear state feedback control theory based on differential geometry doubly-fed generator, dual generator flux and speed sub-systems to achieve the dynamic completely decoupled. Secondly, based on the fixed magnetic field oriented vector control of doubly-fed generator stator side active power and reactive power decoupling in order to eliminate the cross-coupling of the electromotive force of the generator parameters using the internal model control decoupling control case, so that the system which has good dynamic performance. Finally, in the analysis of the doubly-fed generator based on the mathematical model, and vector control, a method based on the model reference adaptive stator, turn flux observer, generator speed estimation and rotor resistance identification algorithm using the Lyapunov principle permit estimated convergence, and appl Platform: |
Size: 6056960 |
Author:zhangjie |
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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: 压频比控制方法非常适用于风机和泵等负载变化较慢的
应用场合。但对于需要快速动态响应的应用场合则效果
不佳。特别是在速度或转矩发生快速变化时，由于较高
的转差率则会导致较大的瞬态电流。如果同时对电机转
矩和磁通进行闭环控制，则可以在不产生大电流的条件
下实现快速的动态响应。矢量控制技术可以实现上述目
标，通常也被称作磁场定向控制（FOC）。-Voltage to frequency ratio control method is very suitable for fan and pump applications where the load changes slowly. But the need for applications where fast dynamic response is ineffective. Especially in the speed or torque changes occur rapidly, due to higher slip will result in a larger transient current. If both the motor torque and flux for closed-loop control, you can not produce high current conditions to achieve fast dynamic response. Vector control technology can achieve these goals, also commonly referred to as field-oriented control (FOC). Platform: |
Size: 1533952 |
Author:宵夜 |
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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: 三相异步电机的控制；电压源逆变器，采用电流滞环控制；典型的异步电动机按转子磁链定向的矢量控制，磁链与转矩实现解耦。-Three phase induction motor control voltage source inverter, the current hysteresis control the typical asynchronous motor by rotor flux oriented vector control, flux linkage and torque decoupling.
Platform: |
Size: 31744 |
Author:chanwy |
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Description: A real time implementation of a vector control of an induction motor on a F28335 DSP (Digital Signal processor). the paper present an overview of the main principles of Oriented flux vevtor control, the modeling of the control system as well as the simulation results and discussions.-A real time implementation of a vector control of an induction motor on a F28335 DSP (Digital Signal processor). the paper present an overview of the main principles of Oriented flux vevtor control, the modeling of the control system as well as the simulation results and discussions. Platform: |
Size: 1740800 |
Author:waelxy |
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Description: 基于按转子磁链定向矢量控制策略的逆变器控制仿真-Simulation of inverter control based on rotor flux oriented vector control strategy Platform: |
Size: 30720 |
Author:shikui |
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Description: 交流电动机的矢量控制（Transvector Contrl）理论，从理论上解决了交流电动机转矩的高性能控制问题。其基本思想是在普通的三相交流电动机上设法模拟直流电动机转矩控制的规律，在磁场定向坐标上，将电流矢量分解成产生磁通的励磁电流分量 和产生转矩的转矩电流分量 ，并使两分量互相垂直，彼此独立，然后分别进行调节。这样，交流电动机的转矩控制，从原理和特性上就与直流电动机相似了。因此，矢量控制的关键仍是对电流矢量的幅值和空间位置的控制。-AC motor vector control (Transvector Contrl) theory, control theory to solve the problem of high-performance AC motor torque. The basic idea is to try to simulate the DC motor torque control law in the ordinary three-phase AC electric motor in field-oriented coordinates, the current vector decomposed to produce the excitation current component of the magnetic flux generating a torque current component and torque, and two components perpendicular to each other, independently of each other, and then were adjusted. Thus, AC motor torque control, the principle and characteristics of the DC motor on and similar. Therefore, the key vector control is still the amplitude and spatial position of the current vector control. Platform: |
Size: 304128 |
Author:林晓冬 |
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Description: 异步电机矢量控制仿真模型，课程作业，可运行。按转子磁链定向控制系统(AC motor vector control simulation model, course assignment, can be operated. Rotor flux oriented control system) Platform: |
Size: 28672 |
Author:MWT |
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Search - vector control oriented flux