shift pulses 中文意思是什麼
-
Due to the complexity of the structure and control of cycloconverter - type three - phase hf link inverter for soft - switching based on phase - shift - controlled full - bridge mode, a simple and optimized vvvf control strategy is proposed. this control strategy includes : produced pwm by space voltage vector ( svm ) and equivalent carrier frequency fe = 1 / te are introduced into the pdm control of the cycloconverter ; softened equivalent pwm wave is generated at the notches of hf voltage pulses ; the harmonious control between regulating pulse width by phase - shifted angle and regulating voltage of equivalent pwm is to minimize the harmonics content of output voltage of the inverter
西安理工大學博士學位論文針對這種前級移相全橋軟開關周波變流型三相高頻鏈逆變器結構和控制的復雜性，提出了一種實現簡單而整體優化的vvvf控制策略:將空間電壓矢量產生p姍的方法svm和等效載波頻率fe = 1 / te引入到周波變流器的pdm控制;按高頻電壓脈沖前後沿軟化等效p翎波;用移相調節高頻脈沖寬度和等效p姍調壓協調控制逆變器輸出電壓，在滿足輸出電壓條件下使諧波最小。 -
From the analytical point of view, with the aid of the numerical simulation, we investigate the propagation properties of optical pulses for the nonlinear schrodinger equation in picosecond regime, the higher - order nonlinear schrodinger equation in femtosecond regime, the nonlinear schrodinger equation with varying gain / loss and frequency chirping in homogeneous optical fibers, and ginzberg - landau equation that describes ultrashort pulses in the presence of self - frequency shift, respectively
本文從解析的角度出發，同時藉助各種微擾理論和數值分析方法，分別研究描述皮秒光脈沖傳輸的非線性薛定諤方程、飛秒光脈沖傳輸的高階非線性薛定諤方程、非均勻光纖中光脈沖傳輸的含有頻率啁啾和增益損耗項的非線性薛定諤方程以及描述超短光脈沖傳輸的ginzberg - landau方程的解的特性，為進一步實現超高速、大容量的光信息傳輸提供一定的理論依據。 -
Money, which was once solid, heavy and difficult to shift around, turns into electronic pulses, which can be sent around the world at the touch of a button in a matter of seconds
一直以來較厚笨又不易轉手的貨幣，已搖身成為電子屏幕上的脈沖影像要傳送至全球不同角落，只要一按鈕，再等幾秒鐘就完成。 -
With the development of few - cycle pulses ( fcp ), the phase shift of the optical carrier with respect to the pulse envelope becomes non - negligible
隨著周期量級激光脈沖的產生，脈沖載波及包絡之間的相對相位漂移逐漸成為不容忽視的問題。 -
The controller takes full advantage of the features of ti tms3201f240xa processor, such as high performance processing capabilities, plenty of peripherals on chip and high real time control. by the vital of these features the fast ac sampling, synchronic pulse, digital shift phase trigger pulse, can bus communication, pid control method and excitation limitations are realized. the pretreatment of the switch signals and the test of the shift phase trigger pulses are realized by using the complex programmable device ( cpld )
該勵磁控制器充分發揮了tms3201f240xadsp處理器的強大的數據運算能力、豐富的片內外設資源和較強實時控制能力，用單片系統結構實現了快速交流采樣，數字同步脈沖形成， can現場總線網路、以及pid控制演算法和各種勵磁限制等功能；用cpld器件實現了開關量抖動預處理和可控硅觸發脈沖遺漏的檢測，減輕了dsp處理器負擔，提高了勵磁控制器可靠性、抗干擾能力和控制能力；使用vc + + 6 . 0開發的基於windows操作系統的勵磁系統調試軟體，人機界面簡潔友好，使用操作靈活方便。
分享友人