本文分别分析了双馈发电机和变桨距系统的数学模型。
In this paper, the mathematical model of DFIG and variable pitch system is established.
本文主要研究了变速恒频双馈风力发电系统中的矢量控制。
This article is about the research of space control in the variable speed constant frequency wind energy conversion system.
对VSCF双馈风力发电机组的基本功率控制策略进行了研究。
The fundamental power control tactics of the VSCF double fed wind power generator have been studied.
而双馈异步风力发电机采用的是定子磁场定向的矢量控制策略。
It is a policy of controllable vector in directional stator magnetic field that the MW DFIG use.
结合合理的简化条件，建立绕线式双馈风力发电系统的数学模型。
Combined with reasonable simplified conditions, the paper establishes the model of the DFIG system.
最后，根据理论研究，研制了一套双馈发电机控制技术的实验系统。
Finally, experimental system of doubly-fed induction generator control technology is developed based on theory study.
所配发电机是一台高效率的4极双馈式发电机，带有绕组转子和滑差线圈。
The matched generator is a high efficient 4-pole double feeding generator with wound rotor and slip windings.
研究了广泛应用于风力发电的变速恒频双馈感应电机系统中的低频不稳定现象。
The low-frequency instability in variable speed constant frequency doubly fed induction generator(DFIG) widely used in wind power generation is investigated.
介绍了双馈感应风力发电系统的结构，提出了该类系统的变速恒频发电控制策略。
This paper introduced the structure of a double-fed induction wind power system, and proposed the VSCF power control strategy.
针对泵站电机和水泵特性的双馈调速系统设计，提出了两步法交流励磁控制策略。
This paper introduces the design of Doubly-fed system according to the characteristics of induction motor and pump, and points out a new strategy of ac excitation in two steps.
建立了基于变换器励磁的双馈感应电机的变速恒频风力发电功率控制系统的模型。
A variable speed constant frequency wind power generation system of doubly-fed induction generator based on converter excitation was described.
首先在风力发电系统建模的基础上，研究了双馈风力发电机本体的小信号稳定性。
The modeling of a grid connected DFIG system is first set up and research is carried out to argue the stability of the single generator.
建立了包含风力机、齿轮变速箱和无刷双馈电机的无刷双馈风力发电系统整体模型。
A model which includes wind turbine, gear-box and brushless doubly-fed machine (BDFM) for brushless doubly-fed wind generation system is presented.
制定双馈风力发电机空载并联微电网的控制策略，实现风力发电系统柔性并网控制；
Then control strategy of microgrid-connection with no load is formulated to realize flexible grid-connection of wind power system.
文中详细论述了提升机双馈串调系统的转矩特性和提升机切电阻时启动力矩设计计算。
Discuss in detail the torque characteristics of hoister double-fed cascade adjusting speed system and the designing calculation of starting torque of hoister shearing resistor.
该系统是双馈发电机转子侧的变流器控制电路，虽然不是很完善，有一定得参考价值。
The system is doubly-fed generator rotor side converter control circuit, although not perfect, there must be reference value.
文中提出的双馈感应发电机线性化模型适用于变速恒频双馈风力发电系统的相关研究。
The presented linearized model of doubly-fed induction generator is suitable to the related researches of doubly-fed variable speed wind turbines.
提出了一种电网对称故障时保持双馈感应风力发电机不脱网运行的新型励磁控制策略。
A new excitation control strategy is proposed for the rotor side converter in a doubly fed induction generator (DFIG) to allow the system to ride through a symmetrical grid fault.
本文最后对该无刷双馈发电系统进行了总结，并对该系统的进一步研究提出了一些方向。
In the last, the summarization for the wind energy conversion system with BDFM is made, and some study ways of this system are put forward.
双馈发电机的有功和无功功率的解耦控制是变速恒频（VSCF）风力发电系统的关键技术。
The decoupled control of active power and reactive power is a key technology of variable speed constant frequency (VSCF) wind energy generation system.
本文对双馈发电机的控制机理、稳定性和谐波成分建立简单的数学模型，进行了一定的分析。
This thesis builds a simple mathematical model for the controllable principle, transient stability and harmonic waves of the DFIG, and analyses them.
首先，介绍双馈发电机的基本工作原理，建立在两相同步旋转坐标系下双馈发电机的数学模型。
First of all, the theory of double-fed induction generator is introduced. Mathematical model of double-fed induction generator in the two-phase synchronous rotating coordinate system is established.
运用定子磁链定向的双馈异步发电机矢量控制能够实现定子侧有功功率和无功功率的解耦控制。
The stator flux-oriented vector control method can realize de-coupled control of active and reactive power.
研究结果表明：双馈感应发电机的定、转子电流以及电磁转矩取决于发电机内部的定、转子磁场。
Research results show that the stator and rotor currents and air-gap torque are subjected to the stator and rotor flux fields in the generator.
针对最具有发展潜力的变速恒频双馈风力发电系统，分析其用于转速控制的电力电子变换器装置。
To the most potential variable-speed constant-frequency doubly fed induction generator, the device of power electronics converter used to control rotate speed is analyzed.
计算结果证明了基于改进BP神经网络算法建立的双馈水轮发电机负荷优化调节特性模型的有效性。
The calculation results prove that the model for load optimal regulative characteristic of doubly fed hydrogenerator based on improved BP neural network algorithm is effective.
根据矢量控制理论和自动控制原理，建立了转子磁链定向的双馈异步电动机电流模型矢量控制系统。
Based on the theory of vector control and automatic control system, the vector control system of current model for doubly-fed asynchronous machine with field-oriented rotor was established.
本文以双馈式电机转子磁场走向为控制的约束条件，建立了双异步变速恒压恒频发电机的矢量控制模型。
Using field orientaion of rotor of doubly fed machine as confining condition, this thesis has established vector control model for double asynchronous VSCFCV generator.
根据我们的预测，在未来5 ~7年间，大部分风电场建设所采用的风力发电机都将会是双馈异步风机。
We estimate that over the next 5 to 7 year, most of wind turbines will be double fed induction wind turbines.
根据我们的预测，在未来5 ~7年间，大部分风电场建设所采用的风力发电机都将会是双馈异步风机。
We estimate that over the next 5 to 7 year, most of wind turbines will be double fed induction wind turbines.
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