pitch control 中文意思是什麼
pitch control
解釋
變距操縱-
Identical autopilots are used to control the pitch and yaw motions if the missile has two planes of symmetry.
如果導彈有兩個對稱面，則使用相同的自動駕駛儀控制俯仰和偏航運動。 -
The first exercise focused on ball possession on the half pitch and then everyone started on a drill where they ran with the ball through obstacles to improve ball control
第一項練習主要是半場控球，然後大家開始了帶球穿越障礙的練習以增強控球能力。 -
On the basis of cybernetics through forecast roll and pitch of a ship and by adjusting the object ' s space position and keep its horizontal state without limit of actual sea state according to the control rules with the predictive value of ship ' s roll angle and pitch angle
應用控制理論通過預測隨機海浪擾動下船舶的橫搖、縱搖運動的搖角值，按照所設計的控制規律實現在不受實際海況限制的情況下調整船上物體的空間位置，使此物體保持水平狀態的目的。 -
The thesis makes a main study of submarines " depth and pitch control in vertical plane and researches on submarines " equilibria control performance
本文將主要研究潛艇垂直面的深度和縱傾的控制，從而進一步研究潛艇的均衡控制性能。 -
Pitch control system consist of three channels which is formed by three drive units. base on need of bench, drive system scheme is designed. single channel three - loop position servo system which is formed by linear motor is simulated. then kinetic behavior of rotor and system ’ s force coupling relation is analyzed. a compensation method for dynamic load which is caused by rotor rotation is presented base on structure - invarient theory
根據實驗臺的技術要求，設計了整個驅動系統方案。對由直線電機構成的單通道三環位置伺服系統進行了設計和模擬。分析了旋翼運動的動力學特性、系統力耦合關系，並根據結構不變性原理對由旋翼運動產生的動態載荷提出了補償方法。 -
Pid control in adjustable - pitch wind turbine system based on bp neural network
變槳距風電機組控制 -
The main task of the paper is to control a major variable pitch wind turbine generator with intelligent controller so as to make it run well
本論文是用智能控制器來實現大型變槳距風力發電機的電控系統。 -
The control parameters influenced the loads of the stall wind turbine small. but it will be bigger to the variable pitch wind turbine and the variable speed wind turbine
對于bladedforwindows軟體，定槳距失速調節型風力發電機組控制參數的輸入量比較少，對機組載荷的影響也比較小。 -
The two schemes those are the hydraulic control and the electromotor control of the pitch - controlled system were developed and a high pressure redundancy electro - hydraulic proportional pitch - controlled design was put forward
具體設計了變槳距機構液壓控制方案和電機控制方案，並提出了高油壓冗餘式電液比例變槳距機構的設計思路。 -
Based on research of wind turbine aerodynamic characteristics, this paper analyzed various control methods for a pitch - controlled system of variable - speed and constant - frequency wind turbine at a wind velocity range higher or lower its speed rating respectively
摘要在風力機空氣動力學特性分析的基礎上，討論了變速恆頻風力機組變槳距機構在低於額定風速階段和高於額定風速階段的不同控制策略。 -
The paper studies the pitch - regulated structure and stand - alone control system about mw wind turbine group. the background of the paper is " mw variable - speed constant - frequency wind turbine group ( no. 2001aa512022 ) ", which is supported by national 863 plan
本文以國家863計劃《兆瓦級變速恆頻風電機組》 （課題編號： 2001aa512022 ）為背景，主要研究了兆瓦級風電機組的變槳距機構及其單機控制系統。 -
The characteristics of wind turbine generators as well as features of the fixed pitch wind turbine generator and the variable pitch wind turbine generator are presented, emphasizing on the variable speed constant frequency ( vscf ) generating system based on doubly - fed generators and on the control system for pitch angles
在簡述風力機特性的基礎上，介紹了定槳距和變槳距發電機組的特點，重點分析了基於雙饋發電機的變速恆頻發電系統及槳葉節距角控制系統。 -
The result of computer and analysis based on blade elements theory shows us that we can regulate the rotate speed of wind turbine rotor by changing set angle and pitch h. variable - pitch system is the key component of the whole wind turbine, which can assure safely pitch - control and brake
本文利用葉素理論，經計算分析得出：通過改變風力機安裝角可以改變槳距h ，從而改變風力機的轉速。變距機構是變槳距控制型風電機組實現變距控制和安全剎車的關鍵機構之一，它的運動由平動和轉動兩部分組成。 -
Pitch control system of controllable pitch propeller based on single - chip microcomputer
基於單片機技術的調距槳螺距控制系統 -
Along with development of tiltrotor vehicle ’ s research some theoretical productions have been appeared in some project ( aerodynamic behavior of rotor, kinetic behavior of rotor, rotor / wing aerodynamic interactions, etc. ). in order to carry on further research and experimentation of these project, national - defence science and technology helicopter rotor kinetic lab of our school begin to building tiltrotor model bench. base on need of this bench, this paper study / design pitch control system on it
隨著對傾轉旋翼飛行器的深入研究，傾轉旋翼的氣動特性、動力學特性、旋翼/機身間的氣動干擾等課題方面已有一定的理論成果出現。為了對這些課題進行深入研究和試驗驗證，我校直升機旋翼動力學國防科技重點實驗室著手建造了傾轉旋翼模型實驗臺。 -
This paper, in advantage of modern control theories, designed the pitch control system and the altitude holding system of the x armed helicopter, and present digital simulation, coupling analysis, sensitivity analysis, system performance analysis under different input and initial condition
本文應用現代控制理論設計了某型武裝直升機的俯仰角控制系統和高度保持系統，並進行了數字模擬、耦合分析、飛行狀態變化對控制系統性能的影響分析，及在不同輸入初始條件下的系統性能分析。 -
First, variable speed constant frequency wind energy convertion theory is described in this paper, then presents a review on the development of wind turbines control and the main types of generator and static converters used to interface variable speed wind turbines to the electric grid. then discuss main circuit constructure and advantage of direct drive wind energy conversion system and introduce pitch - control method for wind power traction and electric power stability. simply aerodynamic characteristic of the turbine is analysised and permanent magnet synchnonous generator math model is established. to convert the variable frequency electricity into utility grid, back to back four - quadrant pwm - vsi is used and three typies of control strategy is presented to capture the maximum wind energy and transmit energy. then simulation is implemented to test the control strategy. in the following chapter a simple ac - dc - ac converter with a dc - dc boosting chopper is proposed to transmit the wind energy into electricity energy and two control strategy is presented
建立了永磁電機和變流器的數學模型，針對雙pwm變頻器的特點提出了三種控制策略對變流器進行控制，通過變流器交-直-交的變換，將發電機發出的變頻變幅值交流電轉化為可用的恆定頻率的交流電，通過pwm調治能使其輸出功率因數為一，並且該控制系統功率因數為可調，能在特殊情況下同電網交換一定的無功功率，並通過對變流器的控制實現了最大風能俘獲的功能。最後採用matlab / simulink進行了模擬，取得了良好的模擬效果。在風力發電系統中，採用先進的最大功率俘獲演算法，能有效的從風中獲得最大的能量。 -
Pitch control includes passive stall and active stall. the article studies the control strategy of active stall mw wind turbine
本論文研究的是mw級主動失速型風機的功率控制策略。 -
Today, mw wind generators substitute 600kw generators gradually and become the popular units of international market of wind power generation. the trends of units are variable speed constant frequency and large - scale and pitch control. there are many different generators which are variable speed constant frequency generator. in this paper the unit is fully - fed magnet wind turbine generator. the magnet wind turbine generator grid - connected inverter is the key component of connected system. the main function of this component is inverting the dc to three - level volage and connecting the electric net
實現變速恆頻發電的方法眾多，本文研究的是較常用的一種方案。該方案採用直驅永磁風力發電機通過變頻器直接連接到電網。永磁風力發電機並網逆變器是並網發電系統的核心部分，其主要功能是將經過整流、斬波升壓后的直流電逆變成三相交流電，並送入電網，實現並網。 -
The communication protocol between host computer and lower computer is showed. the watch and control software is designed using c + + language. this software can realized these function : system self - check, system initialization, rotor pitch control, display and save of transform matrix, document print etc
對上、下位機通信協議作了分析，用面向對象設計的c + +語言編寫了整個系統的監控軟體，主要實現了系統的自檢、初始化，旋翼槳距的控制，變換矩陣和實驗數據的顯示、存儲和列印等功能。
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