pulse control modulation 中文意思是什麼

pulse control modulation 解釋
脈沖控制調制
  • pulse : n 1 脈搏；有節奏的跳動；【動物；動物學】脈沖（波）；脈動。2 意向；傾向。3 【音樂】拍子，律動。vi ...
  • control : n 1 支配，管理，管制，統制，控制；監督。2 抑制（力）；壓制，節制，拘束；【農業】防治。3 檢查；核...
  • modulation : n 調整，調節；（聲調的）抑揚，變化；【音樂】轉調，變調；【無線電】調制。 amplitude modulation 振...
  1. Pulse frequency modulation control system

    脈沖調頻控制系統
  2. Position control of d. c. motors has been done by means of pulse width modulation.

    直流電機位置用脈沖寬度調製法控制。
  3. This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions

    首先對加速度計及其測試技術的發展歷史和現狀，液浮擺式加速度計的工作原理和數學模型等作了簡要的介紹，然後確定了以二元調寬脈沖再平衡測試迴路為設計方案，並從控制理論的角度進行了分析，著重研究了系統中各部分的傳遞函數，利用系統開環傳遞函數分析了系統的穩定性，同時設計了系統的校正網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題，並按照系統分析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路，驗證了電路的正確性，最後按照測試系統的要求，採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具，利用該圖形化編程語言完成了測試系統軟體部分的設計，實現了測試功能。
  4. A closed pulse width modulation ( pwm ) regulating speed system for dc servo - motor is presented, it is composed of avr microcontroller, pwm power driver, unit of speed detection using encoder and a serial communication interface, etc. fuzzy pid algorithm is employed to control the speed and position of wmr. the method can solve effectively some problems such as the uncertainty of wmr ' s model, the varieties demand, the change of situation

    其次，設計了基於avr微控制器（ at90s8515 ）的移動控制系統，其中主要包括pwm功率驅動、測速單元和串列通訊模塊等：對機器人速度、位置控制採用模糊pid演算法，較好地克服了移動機器人模型的不確定性、轉速位置控制要求的多變和環境改變等因素的影響。
  5. The temperature range is - 30 ~ 80. the topology of the step - up dc / dc converters and its basic principle is first analyzed in this thesis. then based on the conventional pfm control scheme, a discrete pulse frequency modulation is presented and the state space average model related to the ccm ( continue current mode ) and dcm is established

    然後在傳統的脈沖頻率調制方式的基礎上，分析了一種離散脈沖頻率調制方式，並建立了這種調制方式下升壓型dc / dc變換器在電流連續（ ccm ）工作模式和電流斷續（ dcm ）工作模式的狀態空間平均模型。
  6. The study has completed the design of two - phase inverter and made up of the two - phase inverter - motor system for experimental use it is a variable frequency adjustable speed system with a open - loop control of rotational speed, which consists of voltage - controlled oscillator circulating assign device inverter circuit and two - phase induction motor a accurate mathematical model is set based on the whole system, and simulator program of dynamic and steady condition is established, which is used to calculate the dynamic and steady performance by kron and symmetrical coordinate converter by simulator calculation and experimental research with specific parameter of the system, a comparison is made between predicted and experimental characteristics, experimental measurements are shown to compare closely with corresponding theoretical result it is compared with some variable frequency adjus table speed system comprising inverter and single - phase induction motor from the system efficiency torque pulsation and the effect of two - phase inverter capacitance based on the conclusion, harmonic cancellation pulse width modulation control of a two - phase inverter - fed induction - motor drive system is researched, which cancelled the low harmonic and improve the system performance

    通過對電機的kron變換和對稱分量變換，建立了系統較精確的數學模型，編制了系統動態及穩態運行的模擬計算程序分別計算系統的動態和穩態性能。通過對系統的具體參數進行了模擬運算和實驗研究，實驗和模擬結果進行比較，說明實驗和理論較為一致，並從系統效率、轉矩脈動及兩相逆變器電容的影響等方面與各種逆變器和單相異步電動機組成的變頻調速系統加以比較。在此基礎上，對兩相逆變器供電-異步電動機系統使用諧波抑制pwm控制進行了研究，由於減少了低次諧波，改善了系統性能。
  7. And with the pulse width modulation method, linearized the electrostatic force producer. it deeply analyzed the speciality of the electrostatic force closed - loop plan, and worked out the system parameters from automatic control theory and simulation

    深入分析了靜電式脈寬調制閉環方案的系統特性，結合自控原理理論和模擬分析對靜電式脈寬調制閉環系統參數進行設計計算。
  8. The operation of the proposed system is thoroughly analyzed and how to control modulation ratio meets each pulse magnetic reset is deduced

    對如何通過控制調制比使高頻變壓器能滿足逐個脈沖磁復位進行了數學推導。
  9. A novel current control mode pulse width modulation switched high frequency resonant arc igniting device is developed based on uc3842 and the principle is analyzed

    摘要採用uc3842設計了電流控制型脈寬調制開關式高頻振蕩引弧器，並對其工作原理進行了分析。
  10. The magnetic reset by each pulse is proposed in this paper. that is how to control modulation ratio and let the increase of magnetic flux with each high frequency pulse reset to zero. so it will avoid magnetic flux saturation

    本文採用逐個脈沖磁復位技術，就是在每個高頻脈沖之後及時採取措施，使每一個高頻脈沖引起的磁通增加都回復到零，從而避免磁芯磁通飽和。
  11. 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的數學模型是高階、非線性、強耦合的多變量輸入輸出系統，介紹了交流電機的正弦脈寬調制、開環電壓空間矢量的u / f控制和磁場定向控制的原理及控制演算法，並利用dsp構成控制系統，通過匯編語言和16位定點c語言混合編程的方法實現了上述的變頻調速控制策略。
  12. The paper contains all kinds of knowledge related to the system, including maxwell electromagnetic theory, pattern of optical radiation in space, channel model of atmosphere communication, computer communication protocols, wireless lan communication protocols, medium access control protocol, carrier sense multiple access / collision detection protocol, manchester coding theory, pulse position modulation coding theory and so on

    主要包括： maxwell電磁理論；發送光場模型；空間通道模型；計算機網路通信技術：無線局域網通信技術；媒體訪問控制規程（ mac ） ；載波檢測多址接入碰撞檢測規程（ csma cd ） ；曼徹斯特編碼與ppm編碼技術等。
  13. Using dsp of ti inc. - - - - - - - tms320f240 this thesis develops a general ac variable - speed system, and then carries out the research on various new control strategies for induction motor based on it. this paper explains sine pulse width modulation ( spwm ), space - vector pulse width modulation ( svpwm ), and new pulse width modulation method - hybrid space vector pulse width modulation ( hsvpwm ) aiming at a inherent problem of dead time in the common pulse width modulation

    本文闡述了正弦脈寬調制（ spwm ）控制技術；電壓空間矢量（ svpwm ）控制技術；以及針對常用脈寬調制方法中存在的一個固有問題? ?逆變器開關器件死區時間的影響，提出了一種新的脈寬調制方法：混合空間矢量脈寬調制控制技術。
  14. Chapter 4 focuses on the theory of voltage space vector pulse width modulation ( svpwm ) and its control strategy. a fast space vector modulation algorithm for 3 - level 3 - phase converter is also described in this chapter

    首先，分析介紹了空間矢量控制在三相三電平逆變器控制中的應用，採用了一種簡單的空間矢量演算法，簡化了實時計算。
  15. Buck zvs - mr - tl converter is taken as the examples to illustrate the operation of the zvs - mr - tl converters. the operation of buck zvs - mr - tl converter is analyzed as well as parameter design, realization of pulse - frequency - modulation ( pfm ) interleaved control and comparison between zvs - mr converters and zvs - mr - tl converters. a 1000w prototype converter is built in the lab to verify the effectiveness of the proposed converter

    本文以buck零電壓開關多諧振三電平變換器為例，詳細分析了它的工作原理、參數設計、脈頻調制交錯控制的實現、與常規的多諧振變換器的對比，並以一個1000w的原理樣機對該變換器進行實驗驗證。
  16. The circuit utilizes 1mhz current - mode pulse width modulation ( pwm ) control to allow small input and output capacitors and a small inductor, while reducing the circuit ’ s volume and minimizing the input supply ripple to 15mv

    該電路採用頻率為1mhz的電流反饋模式脈沖寬度調制模式，可使外部電路選用小的輸入、輸出電容以及小電感，減小了電路的體積，同時能將輸入電壓紋波減小到15mv 。
  17. Besides, the motor control system based on the digital signal processor ( dsp ) is analyzed. the hardware circuit about the dsp system is designed. the dsp control software is programmed on the field magnetic orientated control and the space vector pulse width modulation ( svpwm ), that establishes the ' basis for implementing the modern control principle

    然後，又對基於數字信號處理器（ dsp ）的電機控制系統進行了分析，設計了dsp系統的硬體電路，並編寫和調試了空間磁場定向控制和空間矢量脈寬調制（ svpwm ）的dsp系統的軟體，為直線電機現代控制策略的具體實現奠定了基礎，並提出了對端部效應進行補償的控制方法。
  18. Firstly, the basic theory of switch reluctance generator ( srg ) is discussed in detailed, based on the mechanism electric energy converting analysis, non - linear analysis and non - linear simulation. three control methods of srg ( angle position control method, current chopping control method, pulse width modulation control method ) are deeply studied and analyzed. the electronic controller, which controlled by dsp or by hardware circuit are developed for low - power switched reluctance generation system

    首先系統地研究了開關磁阻電機發電運行的基本理論，從機電能量變換的角度分析開關磁阻發電機的機電能量變化規律；通過非線性分析和非線性模擬方法，明晰開關磁阻電機發電本質，概括出開關磁阻電機發電運行的特點；系統、深入地研究了開關磁阻電機發電運行的控制方案（角度位置控制、電流斬波控制、脈寬調制控制） 。
  19. Based on the mathematical model of induction motor, this paper discusses the rotor - field - orientated control principium and the space vector pulse width modulation principle. subsequently the software design of svpwm is put forward

    本文在分析感應電機數學模型的基礎上，詳細討論了轉子磁場定向矢量控制理論和空間矢量脈寬調制技術原理，提出了svpwm的軟體實現方法。
  20. Firstly, the research and development situation of pneumatic servo system in recent years is summed up. meanwhile, the development history and present situation of interrelated control theory is reviewed. considering the cost and the capability of control of phcc servo system, high - speed on - off valves are used as control valves and controlled with pulse width modulation ( pwm ) in this system

    論文首先綜述了近年來氣壓伺服系統的研究和發展狀況，考慮到氣液聯控伺服系統的成本和控制的可能性，確定採用氣液高速開關閥作為系統的控制閥，應用脈寬調制（ pwm ， pulsewidthmodulation ）方法進行控制。
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