斷路功率 的英文怎麼說

中文拼音 [duànlùgōnglǜ]
斷路功率 英文
interrupting capacity
  • 斷 : Ⅰ動詞1 （分成段） break; snap 2 （斷絕;隔斷） break off; cut off; stop 3 （戒除） give up; abstai...
  • 路 : 1 （道路） road; way; path 2 （路程） journey; distance 3 （途徑; 門路） way; means 4 （條理） se...
  • 功 : 名詞1 （功勞） exploit; merit; meritorious service [deed]: 戰功 military exploits; 立功 render me...
  • 率 : 率名詞（比值） rate; ratio; proportion
  1. Procreant knowledge expression and forward inference engine are adopted in the method of fault diagnosis based on expert system theory. in the fault diagnosis applying neural network theory, six kinds of improved arithmetic of back - propagation arithmetic, including gradient descent with momentum, variable learning rate back - propagation, resilient back - propagation, quasi - newton, levenberg - marquardt and conjugate gradient, are applied to diagnose the faults of electric load manage center and solid state power controller. different diagnostic results gotten by simulation are compared at last

    在基於專家系統的故障診斷方法中，採用了產生式知識表達和正向推理機制；在基於神經網路的故障診斷方法中，則分別採用了bp神經網路的附加動量法、自適應學習速率、彈性bp演算法、擬牛頓法、共軛梯度法和levenberg - marquardt法對電氣負載管理中心和固態功率控制器的故障進行診斷，並對由模擬得到的不同診斷結果進行比較。
  2. Optical power meter real - time monitor optical power of each optical cable, and control computer gather the value of optical power attenuation circularly, if some values excess the limit, the computer control optical switch to connect another spare optical fiber with otdr card, control the otdr card to test the optical fiber, and then find the malfunction point accurately. the system require software system to run with hardware devices tother. this paper analyze requirement and technical feasibility in software system, ooa and uml are used to analyze software and abstract the class diagram

    通過光功率計對每條光纜中的備用光纖進行實時的監控，測試光功率的衰減值，主控計算機不斷循環的對每個光功率模塊進行數據採集，並記錄每路光信號的光功率衰減值，然後進行分析處理，如發現達到設定的光功率衰減門限值就報警，並控制光開關的切換，將故障光纜中的另一備用光纖與otdr卡連接，通過otdr卡對該光纖進行測試，從而確定故障點。
  3. 1 m 0. 5, the phase - shifted angle 6 is controlled in term of sine law which makes the magnitude of resonant voltage track a reference sine voltage, and the resonant voltage is rectified, filtered, inverted and then the better sine - voltage output is obtained, theoretical analysis and experimental results show that for the resistive load and inductive load, the switches of leading leg of the phase - shift - controlled circuit are always turned on at zvs, and ones of lagging leg are turned on at zvs ( < 0 ) or turned off at zcs ( ( > 0 ), moreover, all switches in the low - frequency inverter are always turned on and off at zvs, the measured circuit efficiency for rated load reaches up to 88 %

    從功率單向流動角度出發，提出了一種lcc諧振型恆頻移相單相高頻鏈逆變電路拓撲，在調制系數0 . 1 m 0 . 5情況下，控制移相角按正弦規律變化，使諧振電壓脈沖列的幅值追蹤參考正弦電壓信號，經過整流、濾波、低頻逆變，從而獲得正弦度較好的輸出電壓。理論分析和實驗結果證明對于阻性負載或阻感性負載，移相全橋具有超前橋臂零電壓開通，滯后橋臂或者零電壓開通（ _ 0 ）或者零電流關斷（ _ 0 ）的軟開關特性，而低頻逆變器的各個開關均實現零電壓條件下的開通與關斷。
  4. The control method was introduced and the hardware of the controller was designed. the controller uses the 89c52 and 89c2051 as the main control unit and produces the on and off and angle signal of each phase. combined with protecting signal and current chopping signal, it can control the igbt on and off

    介紹了srd的控制方式和本系統所採用的控制策略，對控制器的硬體電路進行了設計，控制器以89c52和89c2051雙cpu為主控單元，採用模糊調節，發出相通斷信號和角度信號，並和電流、電壓等保護信號以及斬波信號相結合，實現對主功率元件的通斷控制。
  5. Being master control part, user controller stores, manages, display and query user information ; as slave control part, sub - user controller calculates and temporarily stores power sent from measuring module ; measuring module measures electric energy by using power meter ' s special circuit which simplifies circuit design and connects or breaks up power supply circuit by relay ; in order to transmitting data fast and exactly, rs - 485 communication standard is adopts between user controller and sub - user controller

    主控部分用戶控制模塊可存儲、管理、顯示和查詢用戶電能信息；從控部分子用戶控制模塊計算並暫存電能測量模塊輸出功率數據；電能計量模塊採用電度表專用厚膜電路hdb6進行電能計量，簡化了電路設計，同時還利用繼電器控制連接或斷開用戶的供電迴路；在主從部分間採用rs - 485通信標準實現數據快速、準確的傳輸。
  6. It is a new - style society and economy organization which depends on the government ' s guidance and supports. sharing installations such as telecommunications, internets and offices etc. also a yard for r & d manufacture operating systematic training, counsel policy credit and market - popularizing etc, in order to reduce pioneering risks and costs of s & t businesses, increase their survival rates and achievement rates, supply continually increasing tax resources and steady employment opportunities. its industrial mode is always combining s & t resources ( including s & t projects and s & t talents ) with economy resources ( including s & t capital and workforces ) and organically organizing integrating managing and operating to commercialize high - tech fruits

    這是一種新型的社會經濟組織，通過政府引導和支持，提供研究、生產、經營的場地，通訊、網路與辦公等方面的共享設施，系統的培訓和咨詢、政策、融資、法律和市場推廣等方面的支持，降低科技企業的創業風險和創業成本，提高企業的成活率和成功率，為社會提供持續增長的稅源和穩定的就業機會，其產業模式就是不斷把科技資源（包括科技項目和科技人才）和經濟資源（包括資本和勞力等）進行有機組織、整合、管理和經營，使科技成果商品化，科技企業及科技企業家市場化，網路化和國際化。
  7. Unified power flow controller ( upfc ) is one of the most powerful and most promising controllers of facts. if we use upfc to control the transmission parameters, terminal voltage, line impedance and phase angle in normal situation and use it to compensate zero sequence and negative sequence currents when one of transmission lines is cut off, we can implement two phases operating in high voltage transmission lines, which can improve stability and reliability for the transmission system

    統一潮流控制器（ upfc ）是功能最強、最具發展潛力的靈活交流輸電系統（ facts ）控制器之一，如果在常規條件下，用upfc實現輸電線路的電壓調節、移相、潮流控制、阻尼振蕩等功能，在發生單相永久性接地或單相斷路故障時，由傳統的三相跳閘改為單相跳閘，用upfc的並補來濾除兩端系統的零序和負序電流，用upfc的串補來提高輸電線的傳輸功率，以實現兩相長期運行，那麼輸電系統的穩定性、可靠性將大大提高。
  8. A new drive circuit for igbt is designed. it features high switching frequency, high driving power, simple - structure and reverse - turn - off

    論文中還設計了一種新型的igbt驅動電路，它具有開關頻率高、驅動功率大、結構簡單且具有負壓關斷的特點。
  9. High - voltage fuses. part 3 : determination of short - circuit power factor for testing current - limiting fuses and expulsion and similar fuses

    高壓熔斷器.第3部分:試驗限流熔斷器和排氣式及類似型式熔斷器的短路功率因數的測定
  10. Considering the above control strategies which make the controller can not be real - time processing because its workload has increased, control circuits of the main switches based on eprom are designed, which can implement control scheme of firing angles and phase voltage. furthermore, it avoids power converter saturation in the process of commutation

    上述控制策略的引入造成控制器運算量增大、難以在線實時控制，又設計了基於eprom的主開關器件通斷控制電路，實現了開關磁阻電動機開通關斷角控制及對施加於相繞組上電壓的優化控制，同時避免了換相時可能引起的功率變換器飽和現象。
  11. The control method is introduced and the hardware of the controller is designed. the controller uses the tms320lf2407 of ti company as the main control unit and produces the on and off and pwm signal of each phase controlling the igbt on and off

    介紹了srd的控制方式和本系統所採用的控制策略，對控制器的硬體電路進行了設計，控制器以ti公司的tms320lf2407為主控單元，發出相通斷信號和pwm信號，實現對功率元件的通斷控制。
  12. From the view point of the whole topologies of current mode hfl inverters, two topologies of half - bridge and push - pull current mode hfl inverters are proposed, which are composed of four power switches. hfl inverters in discontinuous current mode ( dcm ) are extended to those in continuous current mode ( ccm )

    從完善電路拓撲和降低成本的角度出發，本文提出了兩種結構的電流源高頻鏈逆變電路，它們分別是由四個功率管組成的半橋和推挽雙向電流源高頻鏈單級逆變電路，並將工作在電感電流斷續模式的逆變電路擴展到電感電流連續模式。
  13. This paper put forward a method of using amending sine value in the spwm sine table. this method can correct the distortion of the output voltage waveform, which resulted from the dead time used to the voltage type whole bridge main circuit. the inverter system adopts digital fuzzy controller with feed forward correction and which proportion coefficient and integral coefficient is changeable, so dynamic response is improved

    本文提出了一種採用修補spwm正弦表值的方法，用以改善電壓型全橋逆變主電路因上下橋的功率器件切換時先關斷后導通的死區時間而引起的輸出電壓波形畸變；逆變系統採用帶前饋校正的變比例變積分系數的模糊控制器，提高了系統的動態響應指標；系統設計了完善的保護措施，並具有市電電網的故障診斷功能。
  14. By compared with the simulation results and the experiment results, we come to the conclusions that : ( 1 ) circuit with assistant network can widen soft - switching extent in lagging arm, reduces duty - cycle loss on the secondary, diminishes switching dissipation of inverter spot - welding power source. ( 2 ) the range of resonant capacitor, the important factor to soft - switching process, not only affects zero - voltage turn - off of power switches, but also affects the range of zero - voltage turn - on of power switches. so resonant capacitors must be considered according to many aspects ; ( 3 ) it easily fulfils soft - switching condition in lagging arm as leakage inductance of power transformer increases, but bigger leakage inductance of power transformer increases opening dissipation of transformer and decreases efficiency of soft - switching inverter power source

    通過模擬結果與軟開關點焊逆變器試驗結果的對比分析，得到了如下主要結論：採用輔助網路可以完全拓寬全橋軟開關逆變器的滯后橋臂軟開關范圍，減小了次級占空比丟失，降低了逆變電阻點焊電源的開關損耗；諧振電容是影響軟開關工作狀態的重要因素，其大小不僅影響開關管的零電壓關斷，同時也影響開關管的零電壓開通范圍，因此，諧振電容應該綜合考慮；功率變壓器漏感越大，越容易滿足滯后橋臂的軟開關條件，但是大的漏感也使變壓器的通態損耗增加，降低了軟開關逆變器的效率。
  15. A new method is put forward on thermodynamics combustion model to make imitating research on egr - a software is made to calculate the amount of no from the gasoline by connecting with the practical condition in our country, starting with thermodynamics and experiment at the same time make a system research to influence by the exhaust gas returning system on the gasoline, such as exhaust gas, fuel economy, and power, finally a new thought is afforded for optimizing all the egr parameter in chapter 6

    第五章採用上述診斷和預測模型對bj492q發動機進行了模擬計算和實驗研究，並探討了點火提前角、殘余廢氣系數、燃空比、壓縮比和火花塞位置對發動機性能的影響。第六章提出了基於熱力學燃燒模型對egr進行數值模擬的方法，系統地研究了車用汽油機加裝egr系統后對排放、油耗、功率的影響，並結合排放標準。提出了egr參數的全局優化的新思路。
  16. The fault diagnosis software of power supply system applying the expert system theory is programmed under vb 6. 0. while the fault diagnosis of electric load manage center and solid state power controller is based on the neural network theory, whose software is realized through adopting the neural network toolbox of matlab 6. 1 in vb 6. 0

    對于飛機供電系統，在vb6 . 0中編寫了基於專家系統理論的故障診斷軟體；對于電氣負載管理中心和固態功率控制器，其故障診斷軟體則基於神經網路理論，通過在vb6 . 0中調用matlab6 . 1的神經網路工具箱完成。
  17. In the paper, the transmission power of section constituted by the assigned branch is seen as objective function, assigning the adjustable generators both in sending system and receiving system, assigning the faults set, including the constraint conditions such as the differences between the angles of rotor and the inertia center angel of the whole system, the thermal stability of branch and node voltage, obtaining the results by using interior - point solution and line - predominant jordan

    本文提出的考慮暫態穩定約束的可用輸電能力演算法是以指定線路組成的斷面的傳輸功率為目標函數，指定送端系統和受端系統中參考調節的發電機，指定故障集情況下，以發電機轉子相對全系統慣性中心的角度差、線路熱穩定、節點電壓等構成約束條件，採用內點法和行主元約當逐行消去法求解問題的最優解。
  18. As these methods exist shortages, advanced diagnosis strategy is presented, which combines the fuzzy neural network instead of fuzzy inference to rules inference. the problem of accuracy ratio decline because of roughness of fuzzy synthesizing algorithm has been solved. an example of car diagnosis is given and validity of this method has been proved

    因此本章提出了以模糊神經網路代替模糊推理並與規則推理相結合的先進診斷策略，解決了因模糊合成演算法的粗糙性使診斷成功率下降或診斷錯誤的問題，並給出了一個車輛故障診斷實例，驗證了上述方法的正確性和有效性。
  19. Green - mode which provides off - time modulation to linearly decrease the working frequency under light - load conditions and power limiting which will turn off the transistor when peak current of inductor reaches the threshold current

    同時該電路集成了能在輕負載情況下自動降低頻率的綠色模式以及能在電感峰值電流過高時關斷調整管的功率限制模塊，降低了系統的功耗。
  20. Fuses for voltages exceeding 1000 v a. c. guide to the determination of short circuit power factor

    1000v以上交流電熔斷器.第3部分:短路功率因數測定指南
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