換相保護 的英文怎麼說

中文拼音 [huànxiāngbǎohù]
換相保護 英文
phase change failure protection
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 保 : Ⅰ動詞1 （保衛; 保護） defend; protect 2 （保持） keep; preserve; maintain in good condition 3 （...
  • 護 : 動詞1. （保護; 保衛） protect; guard; shield 2. （袒護;包庇） be partial to; shield from censure
  1. The last section is the exploration of countermeasure of peasants " tax burden problem. in this section, the author analyzed suggestions such as agricultural tax institution reformation, local government debt problem, education institution reformation and allocating finance and truncheon power in all levels governments, foundation of low cost government. at last, the author indicated only protecting peasants " property rights by constitution and laws, can we solve the problem clearly

    正文第四部分：農民負擔問題的對策探討本部分分別從農業稅制改革、地方債務問題、教育制度改革、土地產權制度改革以及轉換政府職能、合理配置各級政府財權與事權、建立廉價政府等對策的現實可行性問題做了相關分析，最後指出只有通過運用憲法和法律保護公民的財產權利才能從根本上解決農民負擔問題。
  2. Avoiding the difficulties of detecting the difficult parameters in furnace control and of building up the models, integrated with fuzzy control and conventional pid control, abb ’ s control it system is used to predict the bloom surface and center temperature directly based on the temperature of furnace wall easily to be detected so that the temperature settings in various furnace sections can be self - corrected, the furnace temperature of each section self - adjusted and on - line parameters of combustion control self - optimized. in addition, the heating parameters and the operating status of the field plant can be monitored with alarm

    採用abb公司的controlit控制系統，避開爐子控制中遇到的困難參數檢測及建模困難等因素，直接根據容易檢測的爐壁溫度來推知鋼坯表面溫度及鋼坯中心溫度，將模糊控制技術與常規pid控制相結合，實現各段溫爐設定值自修正、各段爐溫自協調、各參數在線自整定的自尋優最佳燃燒控制;對熱工參數、現場設備的運行情況進行監視、報警，實現爐膛壓力、管道壓力、換熱器的保護控制，並將重要參數送往廠級mis網路。
  3. A protective method based on voltage - frequency - converter and additional dc measuring the insulation between monitor wire and ground lines of hv double screen cable is developed and realized by analog and digital circuits

    通過分析6kv電纜絕緣監視保護的特點，提出了在高壓電纜監視線與接地線之間附加直流電源並利用v / f轉換實現監視保護的新方法，設計了相應的電路。
  4. Compared with the blocking of new calls, the users are more dissatisfied with the existing call interrupt. so the handoff calls should have higher priority, which is ensured by assigning the guard channels in the hcs. however, the introduction of guard channels will have quite different effects on blocking probability and handoff failure probability

    與新呼叫阻塞相比，用戶更不能容忍對已有呼叫的中斷，因此可通過在第vi頁西南交通大學博士研究生學瞅文hcs中設置保護通道來保證切換用戶更高的接入優先權，但保護通道的引入會對呼叫阻塞概率和切換失敗概率產生截然不同的影響。
  5. Many protective and monitoring functions are integrated in the system, such as earth - fault monitoring, short circuit protection, over - load protection, phase symm etry and phase loss monitoring, over voltage protection, under voltage protection, motor thermal monitoring and so on

    該系統能自動轉換控制方式，具有漏電、短路、過載、斷相、欠壓、過壓等保護功能，並且能通過漢字顯示終端顯示各路負荷的工作狀態和工作參數。
  6. Model gdl1, 2 compact low voltage complete switchgear is suitable for use in ac 50 - 60hz three - phase five - wire election net as power, lighting, electic energy changeover, protection and control in genegration, transmission and distribution systems. it also can be used in warship, oil prospecting and nuclear power stration

    2低壓成套開關設備適用於交流50 - 60hz ，三相互線制電網，用於發電、輸電、配電系統中最為動力、照明、電能轉換、保護控制之用，還可用於艦船及海上石油勘探和核電站。
  7. The main circuit is consisted of 18 thyristors circuit and protection circuit. with the help of control subsystem, it can get the output of low frequency voltage ( current ) with the shape of sine wave ; the core of the control subsystem is the cpu of 87c196kc, and the synchronization circuit, the pulse - widen circuit, and the power - enlarged circuit form the accessorial subsystem of the control system. it possesses all the functions of digital triggering, digital tuning, analog / digital conversion ; the input transfer can isolate the input and output ; and the circumfluence reactor can reduce the circumfluence

    主迴路採用由18個晶閘管組成的三相零式電路，並輔以晶閘管的保護電路，通過控制可以得到低頻正弦波的電壓（電流）輸出；控制迴路主要以87c196kccpu為核心，其外圍電路包括同步電路，脈沖拓寬電路，功率放大驅動電路等，完成了數字觸發、數字調節、模數轉換等功能；進線電源變壓器具有變壓和隔離作用；環流電抗器則實現了有效抑制主迴路瞬時脈動環流的功能。
  8. It supervises all the protection relay units, transmits all the messages to master stations or local scada system, receives commands from master stations or local scada, and exchange data with other intelligent electronic devices

    4dep 550管理單元dep 550管理機是一套通訊管理系統，它對保護裝置進行監視，把保護裝置送上來的信息傳給微機監控系統，並接受監控系統的命令，進行相應的數據交換。
  9. Therefore, the measures shall include learning the experience of foreign banks in corporate governance, pursuing the interest of shareholders in addition to protecting the depositors " asset safety, eliminate the systematic flaws firstly, secondly, it is to mould social credit, reinforced credit management, optimize credit increment ; meanwhile the bank should also learn the experience from abroad and use the model of three - level filtering for bad loans to combine the self - disposal and trusted - disposal methods in handling current non - performing loans

    所以岳陽市商業銀行首先要借鑒國外商業銀行的公司治理結構模式，完善在追求股東利益優先的同時，將保護存款人利益的目標融入其中的外部監督模式的公司治理結構，消除不良資產增長過快的制度根源；其次是重塑社會信用、強化信貸管理，優化信貸增量；再次要借鑒國外商業銀行處置不良資產的經驗，制定自主處理和託管處理相結合的三級過濾的不良資產置換模式，消減現有存量，逐步消化存量不良資產。
  10. Abstract : the system composed of intelligent control modules for three - phase induction motors is introduced in this paper. this module can conduct starting, reverse braking, and reverse conrtol with current limiting resistance. besides, it can also detect low voltage, overload, and open circuit of 1 or 2 phases, and do protection according to the detection. it especially fits to the controlling of motors which often do starting, braking and reversing

    文摘:介紹了一種智能三相電機控制模塊組成的系統，能在串電阻（電抗）起動、反接制動和換向控制的基礎上進行欠壓檢測、過載檢測、斷相檢測及電機故障保護.尤其適用於起動、制動和換向控制頻繁的電機控制場合
  11. The steady frequency three - phase ac can be changed into the ac which frequency is continuously adjusted in the experiment unit composed of rectifier, inverter, control circuit, and relay safeguard circuit

    Spwm三相變頻實驗單元能夠把頻率固定的三相交流電變換成頻率連續可調的三相交流電，它主要包括交直變換、逆變、控制和繼電保護電路。
  12. Firstly, we analyze the transient and steady character of single phase high - impedance grounding fault. secondly, based on wavelet analysis on checking mutational signal and direction high frequency protection theory, utilizing zero sequence current and module current, this paper provides a new scheme including fault starting element, fault phase selection element, directional element and main criterion. this scheme can bear high impedance and is immune to system surge and frequency warp, which gets over the shortcoming of the lack of sensitivity

    由於現有的保護方案無法快速有效地切除此類故障，本文在詳細分析了單相高阻接地故障的穩態和暫態特性的基礎上，從小波分析原理出發，利用小波變換檢測突變信號的原理，以零序電流、模電流等為研究對象，結合方向高頻保護的原理，設計了一套包含啟動元件、選相元件、方向元件、主保護的保護新方案。
  13. The main achievements of the thesis are as follows : ( 1 ) kinds of techniques to detect magnetizing inrush of traction transformers are thoroughly investigated in this paper, and their limitation are indicated and corresponding improvement techniques are proposed. ( 2 ) in this paper, flux linkage equilibriun equations are used to build " ash - box " models of some traction transformers based on system identification, such as two - winding single - phase traction transformer, impedance - matching equilibriun traction transformer and scott traction transformer

    論文的主要內容有： （ 1 ）詳盡分析了現有的針對牽引變壓器勵磁涌流演算法的保護演算法，提出了每種演算法的局限性及其改進方法； （ 2 ）提出適用於鐵道電氣化系統中各種牽引變壓器對應的三?二相轉換規則，利用該規則可將對應量的轉換置於保護軟體中，從而可大大減輕在牽引變壓器兩端外部復雜的接線。
  14. Previous protocols for determining whether a point is inside a circle are not secure enough. we present a two - round protocol for computing the distance between two private points and develop a more efficient protocol for the point - circle inclusion problem based on the distance protocol. in comparison with previous solutions, our protocol not only is more secure but also reduces the number of communication rounds and the number of modular multiplications significantly

    保護私有信息的計算幾何問題是一類特殊的安全多方計算問題， attalah等首先提出了安全多方計算幾何的概念，介紹了點的包含多邊形相交判定最近點對及凸包問題，並分別基於茫然傳送協議及置換協議設計了兩個不同的點積協議，在此基礎上提出了解決點在多邊形中的包含判定及兩個多邊形相交判定的初步方法，但正如作者所指出，其方法還不夠完善，協議效率有待進一步改進。
  15. The whole high power switch supply have four bidirectional dc / dc converters which are parallel connection. the theory of phase - shifted full - bridge zvs pwm dc / dc converter and the theory of push - pull boost converter are introduced. the methods of realize zvs ( zero voltage switching ) is studied in detail

    文中介紹了移相全橋式軟開關變換及推挽式dc dcboost變換的工作原理，分析了移相全橋zvs的實現和占空比的丟失，並設計了各自的控制電路和保護電路。
  16. Full bridge phase - shifted zero - voltage - switched converter ( fbps - zvs converter ) is a successful implementation for soft - switching and is easy for usage in dc / dc converter. the core technique to reach digitalization is dsp technique. in order to reach both high frequency and digitalization of converter, a fbps - zvs converter based on dsp control is proposed in this paper the converter worked on the high frequency of 150k. periphery hardware circuit is simple and its bulk is small. the converter realizes soft - switching over half load and get a high efficiency. it achieves the aim of digital control and error protect

    實現數字化的核心是dsp技術。本文立足於將開關電源的高頻化與數字化相結合，具體研究內容為一種基於dsp控制的移相全橋軟開關zvs變換器，該變換器工作于較高的開關頻率（ 150k ） ，外圍硬體電路結構簡單、器件少、體積小；在半載以上實現了開關管的zvs開關，取得了較高的變換效率；實現數字化控制與故障保護，變換器取得了較好的性能效果。
  17. As the key role of vehicle revolution, the electrical motorcycle drive system has many shortcomings such as low energy efficiency, short running distance within once charge, etc. i n this paper, based on studying the traditional bi - directional energy converters of dc drives, a novel energy saved electrical motorcycle ac drive is presented

    環境保護和能源問題是二十一世紀「綠色革命」的兩大主題，電動車作為汽車「綠色革命」的主角，存在著能量使用率低、一次充電行駛里程短等問題。本文通過研究直流調速系統雙向功率變換電路，提出一種zczvsboost雙向dc dc變換器與vvvf變頻調速器相結合，驅動鼠籠型異步電機的節能型電動車交流驅動系統。
  18. Many protective and monitoring functions are integrated in the system, such as pilot circuit monitoring, earth - fault monitoring, short circuit protection, over - load protection, phase symmetry and phase loss monitoring, over voltage protection, under voltage protection, motor thermal monitoring and so on. all measuring results, fault states, fault parameters and error messages of six motors controlled by the sys tem are sent to the liquid crystal display module via the existing serial data connection

    該系統能自動轉換控制方式，具有漏電、短路、過載、斷相、欠壓、過壓、過熱等保護功能，通過觸摸式液晶顯示系統，不僅能顯示各路負荷的工作狀態和工作參數，而且能記憶其故障狀態和故障參數。
  19. This thesis analyzes pwm control method of srm and its converter circuit characteristic, and designed the hardware control system based on tms320f240 dsp controller. the control system includes detector circuit, protection circuit, control and man - machine interface circuit, which makes full use of dsp recourse for high reliability and simplified the construction of system

    隨后介紹了srm功率變換主電路的兩相斬波方式，並以ti的tms320f240dsp控制器為核心設計了實驗系統，針對srm的特點，充分利用了dsp的硬體資源，設計了相應的外圍硬體檢測、保護、控制及人機介面電路，使控制系統結構緊湊、可靠性高。
  20. However domestic unmature security marbet restrict amc ' s free shares transfer. my opinion is to improve and regulate by law in the course of d - to e. firstly, it is necessary to grasp d to e principle accuratly and construct strict qualification system, secondly, it is important to guarantee amc to enterprise system can keep amc ' s as shareholder control of d to e enterprise, and improve continuously amc ' s management level and efficiency. it is necessary to make special regulation about the duration periods and vavle of amc ' s egutity in legislation to sustain amc benefit, moreover, 13 to e also coordinate with state - owned ' s out - strategy and adjust ownership through social and. private cash input, these also help solve the problem of uvclear state - owned ownership entity ; at the same time, it is necessary to improve security market to widen the ways of share transfer, to be outward transfer as main transfer way, to cultivate institutional investor and reform equity system ; at last it is important to difine correctly bovernment ' s role and play its role. government should be in the nationwide view to organize, coordinate balance support regulate to guarantee d to e ' s performance

    筆者認為，債轉股實施過程中，應依照法律規范予以完善和制約，首先應準確把握其操作原則，特別注意嚴格把好債轉股的準入關;其次，切實發揮金融資產管理公司的職能作用，促使企業轉換經營機制建立現代企業制度，要確保金融資產管理公司作為股東對債轉股企業的最終控制權，不斷提高金融資產管理公司的運作水平和效率，並且在立法上對債轉股中的股權的存續和價值的保護進行特別規定，以維護金融資產管理公司的合法權益;再者，債轉股還要與國有經濟的戰略性退出相結合，進行必要的產權結構調整，通過引入社會資金、民營資本等其他成分徹底解決國企產權主體虛位和產權不明晰的現象;同時，要完善資本市場，積極拓寬股權的退出通道，把對外轉讓作為股權的主要退士方式，培育機構投資者，改革股權制度;最
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