| 1. | The dynamic performance of vscf double - fed wind power system is discussed . it is shown that vscf double - fed wind power system with stator field - oriented vector control has good performance
并且采用定子磁场定向的矢量控制方法实现对风力发电机的控制，分析了双馈型变速恒频风力发电系统的动态特性。 |
| 2. | In this scheme , the torque of motor is calculated and controlled in the staler reference frame . by using stator field orientation , the optimum switching mode is achieved to control the inverter
它直接在定子坐标系下计算和控制交流电动机的转矩，采用定子磁场定向控制，直接对逆变器的开关状态进行最佳控制。 |
| 3. | This paper adopted the sensorless control scheme based on stator field oriented control and adaptive low - pass filter theory . and carried out simulation , program , and experiment works
本文在查阅了大量文献资料后，采用了基于定子磁场定向控制和自适应低通滤波器的无速度传感器算法，并进行了大量的仿真、编程和实验工作。 |
| 4. | Furthermore , under the vector control strategy of stator field - orient , a vector control model will derive from the generator , which form a close control system with the generator model
本文利用定子磁链定向的矢量控制方法，将同步坐标系下的双馈电机数学模型简化后得到矢量控制系统的模型；矢量控制模型与双馈电机模型一起构成闭环控制系统。 |
| 5. | It proves that the capability of wind generator is determined to slip , rotor voltage and angle between rotor voltage and stator voltage , and investigates the control model based on the stator field - oriented vector control
文中还分析了双馈型风力发电机的转矩特性和稳态特性，证明了发电机的性能由转差率、转子电压和定转子电压间的相位角差决定的。 |
| 6. | This thesis shown that vscf ac exited wind power system with stator field - oriented vector control has a series of good performance and all the control schemes which had been introduced in this paper has its feasibility
本文研究结果表明，采用定子磁场定向矢量控制的交流励磁风力发电机系统具有许多优越的性能，且本文采用的控制技术和进行的控制相关分析都是可行的。 |
| 7. | Also this paper investigates the control model based on the stator field - oriented vector control . this paper discussed the newly excitation system - matrix converter and compares the const speed const frequency asynchronous wind generators and vscf generator system
本文在仿真风速和风机特性的同时，构造整个系统模型并对变速恒频和恒速恒频技术的优缺点进行了仿真分析比较。 |
| 8. | Secondly , to achieve the independent regulation of active and reactive power output from the generator side which is designed for the purpose of tracing the maximum wind - energy capturing . the paper has analyzed the mathematic model of the ac excited doubly - fed machine and the stator field orientation control strategy of the motor as vscf wind power generator . thirdly , it has put forward and designed the dual pwm converter with the capacity of energy flowing bidirectional aimed at the demand of rotor energy bidirectional flow . the author constructed reliable and integrated experimental system and did a series of experimental study including no - load , cutting - in network and power generation at , below and above the synchronous speed
论文首先分析了风机运行特性及其最佳风能利用原理，通过仿真及实验验证了采用直流电机的输出特性模拟风力机的最大输出功率曲线的可行性，并给出了模拟系统的硬件结构；然后为了实现交流励磁发电机有功、无功功率独立调节机理，分析了交流励磁双馈发电机的数学模型和在追踪最大风能捕获变速恒频风力发电时必需的定子磁链定向矢量控制策略；针对双馈发电机转子能量双向流动的要求，提出并设计了具有能量双向流动能力的双pwm交流励磁用变频器；最后为实现从理论到实践的全面研究，研制出了一套小功率完整的双pwm变频器交流励磁的双馈风力发电机实验系统，进行了空载、并网、同步速及上、下的发电运行等一系列的运行实验；所完成的仿真和实验研究均验证了理论、模型和控制策略的正确性、可行性。 |
| 9. | Pmsm step motion control for the electric actuator is a new mechatronics device based on new control theory and technology , based on ac step motion control theory , that selects the stator field position as the primary control objects and sets the ac step motion control model based on digital control to attain optimal time control through position feedback
永磁同步电动机步进控制的电动执行器是基于新的控制思想和控制技术的机电一体化新型装置，基于交流步进控制理论，将交流电动机的磁场位置选为主要的控制目标，建立基于数字控制的交流步进控制模型，使执行器终端设备在给定位置目标下，通过位置反馈达到最优时间控制。 |
