voltage control loop 中文意思是什麼
voltage control loop
解釋
電壓控制迴路-
Depend on the comprehensive analysis and study of the structure, principle, and exterior characteristic of the motor, through the methods of system modeling and digital simulation analysis, two kind of control device that work for the low voltage ( lvdc ) and the high voltage ( hvdc ) in avigation are researched respectively. point to the control technique of close - loop speed stabilization at a limited adjustment speed range, we bring out the close - loop speed control method that using the rotor position sensor indirectly measure the speed of the motor
在全面分析了稀土永磁無刷直流電動機的結構特點、工作原理、運行方式以及外部特性的基礎上，通過系統建模和數字模擬分析，分別針對航空低壓直流（ lvdc ）和高壓直流（ hvdc ）兩種電動機構用永磁無刷電動機，在小范圍轉速連續調節下的閉環穩速控制技術進行了詳細理論研究，提出了利用轉子位置傳感器信號間接測量電機轉速進行電機轉速閉環穩速控制的策略。 -
Block diagram of voltage - type closed - loop control
電?形閉 -
The pll consists of a crystal oscillator, a ring voltage - control - oscillator, a frequency divider, a phase / frequency detector, a charge pump and a loop filter
設計的電路包括20mhz晶體振蕩器，鑒頻鑒相器，壓控振蕩器，固定分頻器，電荷泵和低通濾波器。 -
For the purpose of boosting voltage, because of the effect of the load r on q, the proposed close - loop control method is the best choice to ensure the stable output voltage
當利用諧振網路提升整機輸出電壓時，由於負載r對q值的影響，因此必須採用所提出的閉環控制方法才能保證良好的穩壓功能。 -
Based on the study of transferring characteristics of the lcc - type resonant voltage, the parameter combinations, which make widths and magnitudes of voltage pulses of resonant network adjustable, arededucedo when the following requirements are met : fn > 3, k > 3 or cp / cs > 8, the above circuit is of natural voltage - stabilized characteristics, thus open - loop control method for bucking voltage is presented and the experimental results verify that the method is feasible.,
實測整機在額定負載時效率達到88以上。在研究lcc諧振網路電壓傳輸特性的基礎上，推導出滿足可變寬度和幅度的諧振網路輸出電壓脈沖列的參數組合。設計f n 3 、 k 3或c _ p / c _ s 8時，諧振網路具有自然穩壓特性，因此本文提出並實驗驗證了一種整機為降電壓時的開環控制策略。 -
First, it analyzes the working principle and some features of the system, such as the circulating current characteristics, power distribution characteristics, and characteristics about closed loop regulation of voltage. then it goes on to the study of some typical control methods, and designs on this basis, a parallel controller using a synchronization control strategy of racing to merging and a load - sharing strategy combined with feedback control and drooped control
文中，首先通過建立系統的數學模型，分析了逆變電源並聯運行的工作原理以及並聯系統的一些主要特性，包括它的環流特性、功率特性和電壓閉環調節特性；在此基礎上，又研究了幾種典型的並聯運行控制方式；然後，採用搶占與並發相結合的同步控制方式和反饋與下垂特性相結合的負載均分控制設計了並聯控制器。 -
Current - mode dc / dc converter adds a current feedback loop on the base of voltage - mode control, achieving both current and voltage feedback loop control
電流模式dc / dc變換技術是在電壓模式控制的基礎上，增加了電流反饋環，實現了電壓和電流的雙環反饋控制。 -
Designed the dual - loop control circuit based on optimized psm, which realize to select the suitable duty ratio to make output stable by utilizing voltage and current feedback loops
3 ）設計基於優化psm調制模式的雙環控制電路。採用電壓、電流雙環路控制，根據負載情況選擇合適占空比來實現穩壓。 -
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。 -
Thirdly, the paper detailedly explained the whole system ’ s hardware structure based on dsp, and made the flow chart of the software which realized the pwm occur, the current control loop and the voltage loop
然後給出了基於dsp的全數字式6kw三相應急電源的硬體實現方法，結合設計出來的硬體，編制了基本的dsp底層程序流程。在程序中實現模擬量采樣， pwm產生，電壓控制環和電流控制環等功能。 -
The instantaneous voltage inner loop is used to control output voltage waveform to track a sinusoidal waveform. and the outer average voltage loop guarantees accuracy of output voltage
電壓瞬時值內環保證輸出電壓波形的正弦度，平均值外環實現對輸出電壓幅值的控制。 -
This paper focuses on the control strategies to improve the performance of the three - phase ac - dc pwm voltage - source - converters ( vsr ) under unbalanced power supply. the problems such as negative sequences current, voltage and current harmonics and un - constant ( un - smooth ) power flow from ac to dc side are discussed in this paper. the analytical solutions for negative sequence current and harmonic current elimination are obtained by fully feed - forward of negative sequence voltage and producing a non - harmonic current command of the inner - loop
電網不平衡時，基於電網平衡為約束條件設計的三相vsr將出現不正常運行狀態，比如三相vsr交流電流中出現負序分量，使交流電流嚴重不對稱；直流電壓和交流電流中出現非特徵諧波分量，使直流電壓和交流電流波形發生嚴重畸變；三相vsr從電網吸收不平衡的瞬時功率等一系列問題。 -
The feedback of the output voltage is the major control loop. to achieve better frequency response and disturbance rejection of the input voltage, a input voltage feed - forward system is introduced in control loop. the duty - cycle of pwm applied at the gate of power mosfet is modulated by both input and output voltage
該晶元採用的控制方式為電壓型pwm （脈沖寬度調制， pulsewidthmodulation ）控制方式，以輸出電壓反饋作為主要控制參量，同時為了提高晶元對輸入電壓擾動的響應速度，採用了輸入電壓前饋方法，將輸入電壓因素引入了反饋控制環中，通過對輸入輸出電壓的檢測，控制加在功率mos管柵極電壓上矩形脈沖的占空比，進而調節輸出電壓。 -
Mc closed - loop control method based on dsvm is presented, in which the rms value of output line voltage is taken as feedback and pi regulator is adopted
提出了雙空間矢量調制矩陣變換器的輸出電壓有效值閉環的控制方法，將矩陣變換器輸出線電壓有效值作為反饋值，採用pi調節器實現系統的閉環控制。 -
The motive of this mm frequency synthesizer is also given in this chapter. chapter 2 emphasizes on the pll, first, introduce the module of basic components of pll, such as phase detector, loop filter and the voltage control oscillate ( vco ). secondly, describe the theory of the linearity pll
第一章介紹了頻率綜合器（簡稱頻綜）的發展過程，對各種頻率合成的技術進行了簡單的概括和對比，簡述了毫米波及其特點，並介紹了本文所作研究工作的研究目的及意義 -
To transform a voltage - control problem to a current - control problem, a current - controlled voltage - source inverter ( cc - vsl ) is considered, and a power flow controller based on ph control algoritltnm is designed to improve dynamics of control system and implement closed - loop control to active and reactive power. to promote adaptation and robust, a self - tuned p1 power controller based on fuzzy rule is presented
論文還探討了採用電流跟蹤控制pwm電壓型逆變器實現sssc的問題，將注入串聯電壓控制問題轉換為逆變器的電流控制問題，以此建立了sssc控制系統的結構，並設計了基於pi控制演算法的sssc的潮流控制器，模擬表明其改善了系統動態特性，實現了對p和q的閉環控制。 -
A non - linear feed - forward loop is used to realize the coordinated control between the two controlled variables at the two control ends at first. secondly, a constant ac voltage control is implemented for a short period after the ac fault removal. finally, a staggered recovery strategy for different hvdc subsystems is also adopted, with the restart time interval of them optimized using the steepest descent gradient search method
該協調恢復策略的三個特點是：在常規的控制器結構中加入一個基於準穩態工作點的非線性前饋迴路；在交流故障被切除后的一個短暫時間內，逆變側採用定交流電壓控制：對不同的直流輸電子系統採取一種漸進的恢復策略。 -
Finally, the whole control strategy for this thesis is proposed, which is the combination of the capacitor voltage control ( outer loop ) and the indirect current control ( inner loop )
最終確定本文的整體控制策略-電容電壓外環控制和間接電流內環控制相結合，並對控制系統的模型進行了分析。 -
In addition, studies on the voltage control loop are also developed. the corresponding mathematical model is set up, and the determination method of the controller parameters is deduced
對電容電壓的控制也進行了深入的研究，建立了控制器的小信號數學模型，並推導出控制器參數的獲取方法。 -
The control strategy of the active power filter is also very important. many studies on the control techniques are carried out, including the current control loop and the capacitor voltage control loop
控制策略是有源電力濾波器的又一關鍵技術，本文對有源電力濾波器的控制系統進行了研究，包括電流控制和電容電壓的控制。
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