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 并且采用定子磁場(chǎng)定向的矢量控制方法實(shí)現(xiàn)對(duì)風(fēng)力發(fā)電機(jī)的控制,分析了雙饋型變速恒頻風(fēng)力發(fā)電系統(tǒng)的動(dòng)態(tài)特性。
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 它直接在定子坐標(biāo)系下計(jì)算和控制交流電動(dòng)機(jī)的轉(zhuǎn)矩,采用定子磁場(chǎng)定向控制,直接對(duì)逆變器的開關(guān)狀態(tài)進(jìn)行最佳控制。
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 本文在查閱了大量文獻(xiàn)資料后,采用了基于定子磁場(chǎng)定向控制和自適應(yīng)低通濾波器的無速度傳感器算法,并進(jìn)行了大量的仿真、編程和實(shí)驗(yàn)工作。
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 本文利用定子磁鏈定向的矢量控制方法,將同步坐標(biāo)系下的雙饋電機(jī)數(shù)學(xué)模型簡化后得到矢量控制系統(tǒng)的模型;矢量控制模型與雙饋電機(jī)模型一起構(gòu)成閉環(huán)控制系統(tǒng)。
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 文中還分析了雙饋型風(fēng)力發(fā)電機(jī)的轉(zhuǎn)矩特性和穩(wěn)態(tài)特性,證明了發(fā)電機(jī)的性能由轉(zhuǎn)差率、轉(zhuǎn)子電壓和定轉(zhuǎn)子電壓間的相位角差決定的。