generator field control 中文意思是什麼
generator field control
解釋
發電機場調整-
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。 -
The surface semi - conducting layer is widely used to control the electric field and suppress the surface corona discharge in both hv power cable termination and the end turns of hv generator stator winding
摘要表面半導電層結構可以均勻電場和抑製表面電暈放電，因此被廣泛應用於高壓電力電纜接頭和高壓發電機定子線圈端部絕緣中。 -
Secondly, to achieve the independent regulation of active and reactive power output from the generator side which is designed for the purpose of tracing the maximum wind - energy capturing. the paper has analyzed the mathematic model of the ac excited doubly - fed machine and the stator field orientation control strategy of the motor as vscf wind power generator. thirdly, it has put forward and designed the dual pwm converter with the capacity of energy flowing bidirectional aimed at the demand of rotor energy bidirectional flow. the author constructed reliable and integrated experimental system and did a series of experimental study including no - load, cutting - in network and power generation at, below and above the synchronous speed
論文首先分析了風機運行特性及其最佳風能利用原理，通過模擬及實驗驗證了採用直流電機的輸出特性模擬風力機的最大輸出功率曲線的可行性，並給出了模擬系統的硬體結構；然後為了實現交流勵磁發電機有功、無功功率獨立調節機理，分析了交流勵磁雙饋發電機的數學模型和在追蹤最大風能捕獲變速恆頻風力發電時必需的定子磁鏈定向矢量控制策略；針對雙饋發電機轉子能量雙向流動的要求，提出並設計了具有能量雙向流動能力的雙pwm交流勵磁用變頻器；最後為實現從理論到實踐的全面研究，研製出了一套小功率完整的雙pwm變頻器交流勵磁的雙饋風力發電機實驗系統，進行了空載、並網、同步速及上、下的發電運行等一系列的運行實驗；所完成的模擬和實驗研究均驗證了理論、模型和控制策略的正確性、可行性。 -
It proves that the capability of wind generator is determined to slip, rotor voltage and angle between rotor voltage and stator voltage, and investigates the control model based on the stator field - oriented vector control
文中還分析了雙饋型風力發電機的轉矩特性和穩態特性，證明了發電機的性能由轉差率、轉子電壓和定轉子電壓間的相位角差決定的。 -
The use of chaos in signal processing, communication and control has been a very active area of research in recent years. since chaos is a deterministic complex phenomenon, it opens up a new field for signal processing. this dissertation focuses on developing efficient algorithm for signal detection, parameter estimation of radar and also on radar signal generator
本文研究屬于基於混沌的應用研究，主要從雷達信號檢測、參數估計、波形設計和圖像處理的數字水印四個方面較全面地討論了混沌理論及相關技術在信號處理系統中應用的可能性，探討了相應的信號處理演算法和實現過程。 -
Furthermore, under the vector control strategy of stator field - orient, a vector control model will derive from the generator, which form a close control system with the generator model
本文利用定子磁鏈定向的矢量控制方法，將同步坐標系下的雙饋電機數學模型簡化后得到矢量控制系統的模型；矢量控制模型與雙饋電機模型一起構成閉環控制系統。 -
Also this paper investigates the control model based on the stator field - oriented vector control. this paper discussed the newly excitation system - matrix converter and compares the const speed const frequency asynchronous wind generators and vscf generator system
本文在模擬風速和風機特性的同時，構造整個系統模型並對變速恆頻和恆速恆頻技術的優缺點進行了模擬分析比較。
分享友人