2 . the asymptotic stability and balanced growth solutions of the dynamic input - output system are studied 深入研究了動(dòng)態(tài)投入產(chǎn)出系統(tǒng)的漸近穩(wěn)定性和均衡增長(zhǎng)解問題。
After measuring and analyzing the vibration acceleration of a armored vehicle ' s gearbox , the ar model of single and multiple input - output system are established and the parameters are classified 通過對(duì)裝甲車輛齒輪主傳動(dòng)系統(tǒng)的振動(dòng)信號(hào)測(cè)試與分析,分別建立了單輸入單輸出及多輸入多輸出系統(tǒng)的受控ar模型,辨識(shí)了系統(tǒng)參數(shù)。
Under some natural weak assumptions that do not require the technological coefficients matrix is indecomposable , the fact that the dynamic input - output system is not asymptotically stable and the closed dynamic input - output model exists a balanced growth solution is proved 利用矩陣特征值理論和廣義系統(tǒng)理論,在相對(duì)弱的條件下(不需要直接消耗系數(shù)矩陣不可分解) ,證明了動(dòng)態(tài)投入產(chǎn)出系統(tǒng)不是漸近穩(wěn)定的。
The control system of wind turbine includes individual control and group control . according to the control process and main technical parameter , the paper accomplishes the control system structure design and input - output system design . this paper also deeply analyzes the operation principle of the whole control system and the relation between each part in order to realize the no - person automatic operate 本文以1mw變槳距風(fēng)電機(jī)組為研究對(duì)象,根據(jù)其主要技術(shù)參數(shù)及控制工作過程,對(duì)其單機(jī)控制系統(tǒng)的構(gòu)成進(jìn)行了設(shè)計(jì),闡述了輸入輸出接口和各個(gè)控制環(huán)節(jié)的運(yùn)行原理及其相互之間的聯(lián)系與約束關(guān)系,從而實(shí)現(xiàn)在無(wú)人值守的條件下,實(shí)現(xiàn)多種預(yù)定的控制目標(biāo),并在此基礎(chǔ)上探討其更廣泛的適應(yīng)性及實(shí)用性。
This paper expatiated that the mathematics models of ac motor is higher order , non - linear and closed coupling , multivariable input - output system . and introduces the principle and the algorithm of sine pulse width modulation ( spwm ) , opened - loop space voltage pulse width modulation control ( svpwm ) and field oriented control ( foc ) . finally , realized the control strategies of variable - frequency speed regulating using assembly and c language 文中闡述了交流異步電機(jī)的數(shù)學(xué)模型是高階、非線性、強(qiáng)耦合的多變量輸入輸出系統(tǒng),介紹了交流電機(jī)的正弦脈寬調(diào)制、開環(huán)電壓空間矢量的u / f控制和磁場(chǎng)定向控制的原理及控制算法,并利用dsp構(gòu)成控制系統(tǒng),通過匯編語(yǔ)言和16位定點(diǎn)c語(yǔ)言混合編程的方法實(shí)現(xiàn)了上述的變頻調(diào)速控制策略。