指數變化電壓 的英文怎麼說
中文拼音 [zhǐshǔbiànhuàdiànyā]
指數變化電壓
英文
exponential voltage change-
In order to make the sensitivity of 2 - demension accelerometer along the two main arbors almost identical, symmetric four - beam structure that embeds a double - sides interdigitated differential capacitive with puckered beam in two directions was used as sensitive component. in addition, the differential capacitive accelerometer fabricated by bulky silicon micromechanical technique has high sensitivity, wide measurement scope, less nonlinear error, and simple converting circuit. then, the structure parameters of the sensitive component were calculated and stimulated, which results in a set of the optimized structure design parameters, main fabrication procedure and several key fabrication technology
為使二維振動傳感器在兩主軸方向的靈敏度大致相同，敏感元件採用高度對稱的四梁結構，其中每個軸向上均採用帶折疊梁的雙側叉指電容結構，採用體硅微機械工藝製作的高深寬比叉指電容式敏感元件，具有高靈敏度、寬量程、非線性誤差小、外圍電路簡單等優點;對設計的敏感元件結構參數進行了計算，並利用有限元法進行了模擬分析，根據模擬結果得出了優化參數;在確定敏感結構的基礎上，研究了敏感元件採用體硅微機械加工工藝製作的工藝流程和關鍵工藝技術;對敏感晶元內部的c - v介面電路進行了原理設計與分析，利用差動測量技術得到由振動引起的微小電容變化量，經c - v介面電路進行相位調制處理，然後通過解調輸出與加速度成正比的電壓信號。The system is based on chopper constant current drive technique, according to the top level design idea, adopting advanced specical subdivision control integrate circuit and powerful function 80c196kc to organize the system frame, desiging the minimum system of single - chip microcomputer, multifunction i / o interface circuit, relay switch circuit, keyboard and display circuit, multifunction digital setting interface circuit and so on, utilizing the hso and hsi interface circuit which are owned by this single - chip microcomputer exclusively and its powerful command system to realize dual - degree switch control, automation orientation, automatically searching zero position, locking machine when stopping, frequency to set digitally, automatically adjusting speed through changing frequency, swithing subdivision or squarewave control, on the basis of above, the system also have the function of running according to the setting steps and the frequency, voltage and current to display through the led, etc
系統基於斬波恆流驅動技術，按照頂層設計思想，採用先進的專用細分控制電路和功能強大的80c196kc單片機來組建系統構架，設計了單片機最小系統、多功能i o介面電路、繼電器切換電路、鍵盤顯示電路和多功能數字設定介面電路等，利用該單片機獨有的hso和hsi介面及其強大的指令系統，實現了雙余度混合式步進電動機的余度切換控制、自動定位、零位自動搜索、停機鎖定、數字化頻率設定、自動調頻變速控制、細分方波切換控制，在此基礎上，該系統還設有按預置步運行、 led頻率電壓相電流顯示等功能。Offline control strategy refers to work under known load condition, according to the load condition calculate the instruction voltage, then store them in the datasheet, each time read the instruction voltage from the datasheet, when input dc bus voltage changes, a pi controller is used to adjust the instruction voltage thereby fix the output voltage rms
離線型控制是指在已知負載的情況下，計算出控制用的指令電壓，存在數據表中，每次讀取表中的數據，當輸入母線電壓變化時通過pi調節調整指令電壓來控制輸出電壓。由於計算量不大，用單片dsp就可以實現指令電壓的計算和svm演算法，主要用於負載情況已知且固定的場合。Being basis on the 14 regional grid planning texts of historical data of hunan province, initially determining the factors that affecting power grid construction ; to reflect the distribution of information to determine the scale of construction leading indicators to assess the scale, with its own network of intelligence presented to the region to assess the scale of the distribution network - building indicators system ; establishes assessment models of evaluating 110kv distribution network building scale integrated ; considering the main factor that influencing the construction scale of the distribution network, the improvement method of 10kv distribution networks capacity - load ratio is proposed ; the combination of high voltage distribution network planning optimization technology results presented evaluation pressure distribution network building scale integrated assessment methods
課題以湖南省14地區電網已有規劃文本歷史數據為基礎，初步確定各種影響電網建設的因素;以反映配電網建設規模的主導信息來確定規模評估指標，提出了符合自己網情的地區配電網建設規模的評估指標體系;建立了評價110kv配電網建設規模的綜合評估模型;通過研究各影響因素與負荷發展儲備系數參數的關系提出了確定10kv變電容載比的方法;結合高壓配電網規劃的優化技術成果，提出了評價中壓配電網建設規模的綜合評估方法。It is found that after stressed by surges the varistors show a decrease in both break - down voltage and nonlinear exponent, and an increase in leakage current
實驗結果顯示，氧化鋅變阻器受突波侵襲后，會生成崩潰電壓降低，非歐姆指數值減小，以及漏電流增加等劣化現象。Abstract : a thermo - economical diagnostic mathematical model for pressurizedwater reactor ( pwr ) nuclear cogeneration plant is proposed based on heat assignment method. this model simplifies the calculation of thermal system and can be used to calculate the index variations caused by heating steam parameters as temperature, return percentage and return place of the return water. some examples are given to show the usefulness of this model
文摘:基於熱電聯產機組熱量法分配的特點，建立了熱電聯產壓水堆機組熱力系統發生變化對熱經濟性指標影響的計算模型，提出了供熱系統參數? ?供熱回水率、回水溫度、回水地點變化對壓水堆機組熱經濟性影響的定量診斷數學模型，可將復雜的熱力系統全面計算簡化成3個一次方程.通過實例計算，驗證了所提數學模型是正確可行的，同時具有概念清晰、計算簡捷的特點The results show that the three parameters, i. e. the maximum allowable flow rate of the drain tank, the drain tank pres - sure, and the pressure of the water separator, are supporting and restraining each other, and the variations of the pressure and flow rate are reasonable
模擬結果表明：疏水箱的最大允許流量、疏水箱壓力以及汽水分離器的壓力三參數是相輔相成，相互制約的；壓力和流量等參數變化趨勢合理，模擬結果對外高橋電廠機組啟停有一定的指導意義。The research works are shown mainly as follows : 1 ) the actuality and outlook of on - line detecting and fault diagnosis technology of gases dissolved in oil are analysed deeply, and characteristics of insulation structure of power transformer, evaluation of operating reliability and the relationship between ordinary faults inside transformer and gases dissolved in transformer oil are studied too. analysing the purposes of detecting gases dissolved in transformer oil on - line, we can know that primary indexes to evaluate the technology of on - line detecting gases dissolved in transformer oil are reliability of system, accuracy of detected data, validity of diagnosis, automatization and price of systems
主要研究內容有： 1 ）深入分析變壓器油中多種溶解氣體在線監測及故障診斷技術研究現狀及應用前景，研究電力變壓器絕緣結構特性、運行可靠性評估以及變壓器內部常見故障與油中溶解氣體對應關系，通過對在線監測變壓器油中溶解氣體的目的分析得出系統運行的可靠性、監測數據的正確性、診斷的有效性、系統的自動化程度、系統的價格等是綜合評價變壓器油中溶解氣體在線監測技術的指標。The project is brand - new in the whole provincial electric power system. by simple and practical mathematical methods, the evaluation quantifies the respective guideline of evaluative. moreover, it provides the mathematical model for line consumption estimation and distribution capability choice, and further supplies practical estimation method for the development of urban mv / lv distribution power network
該課題研究在全省電力系統尚屬首次，評估應用了簡單，實用的數學方法對各項評估指標進行量化；並對線損估算、配變容量選擇等提供了數學模型，為城市中低壓電網發展提供了實用的估算方法。To research the issues measurement models and analysis methods of power quality, we put forward an analytical opinion in this paper. following fluctuation of power system, which amends parameters deviation in accordance with fundamental component
本文通過對電能質量的指標、測量模型以及各種電能質量分析方法的深入研究，提出了一種實時跟蹤電壓基波分量參數的變化，獲取幅值、頻率、相角的實時數據，修正偏差的分析思路。Finally, as a main basis to form objective system of sgee, a target system of sgee ' s briskness measure has been given out simply and clearly by those two results, the author has completed the four designs of sgee ' s em from principle structure to practical use, that is : the pressure em for worker ' s to be effectively consciousness the payment em based upon the conclusion in the research that the model of management by objective should be mainly adopted in sgee ; according to situation of sgee, this mechanism has feature of simple contribution estimation, and comprehensive measure about present and long term contribution of workers the concept em that could be used to greatly raise condensation force in enterprise the growth em that is favorable to bring up excellent talent finally, the ibm system as a exploratory, the rules of operation and regulation were put forward about ibm of sgee in this paper, include : influence factors of living cycle of iem laying and operating programs based on the need of practical uses a measure model of relation effect of iem, based on the newton second theorem regular ways to iem based on the control theory
為尋找實用性較強的機制參數（變量） ，本文對發電企業內外部環境進行了分析，其中，內部環境分析以研究后重組的活力構成要素為線索展開，通過逐項延伸分析，簡明扼要地提出了發電企業活力衡量指標體系，作為形成發電企業目標樹圖的主要依據。以上兩方面的工作成果，使筆者最終完成了發電企業四項激勵機制從原理、結構到實用性的綜合設計，即： ?有效激發員工市場競爭意識的壓力激勵機制。 ?基於發電企業應當主要採用目標管理模式這一研究結論的報酬激勵機制，它的最大特點是簡化了績效評價，針對發電企業現狀，在機制中注入了人本管理思想，綜合考慮了員工對企業當前和長遠利益的貢獻。分享友人