換級開關 的英文怎麼說
中文拼音 [huànjíkāiguān]
換級開關
英文
pole changer-
These cards also make it easier to design a system that com ? bines various switching configurations, such as matrix, cascade, tree, etc
利用這些開關卡，可更方便地設計組合不同切換配置的系統，例如矩陣、級聯、樹形，等等。Abb will replace an existing outdoor 275 kilovolt ( kv ) substation now nearing the end of its service - life with an indoor substation based on compact, state - of - the - art, gas insulated switchgear ( gis )
Abb將用基於體積較小的頂級的氣體絕緣接電開關裝置（ gis ）的室內變電站替換現有的服務年限將到的室外275千伏特的變電站。The three - order modulator has a 2 - 1 cascaded structure and 1 - bit quantizer at the end of each stage, the modulator is implemented with fully differential switched - capacitor circuits. and then, the discussion will begin by exploring the design of various circuit blocks in the modulator in more detail, i. e., ota, switched - capacitor integrator, quantizer, two - phase non - overlapping clock signal, etc., at the same time, these circuits will be simulated in spectre and hspice. at last, the whole cascaded modulator will do behavioral level simulation by matlab soft and simulink toolbox
本論文中，首先介紹模數轉換器的各種參數的意義，以及一階sigma - delta調制器和高階sigma - delta調制器的原理;給出解決高階單環sigma - delta調制器不穩定性的方案，引入級聯結構調制器，特別針對級聯結構調制器中的失配和開關電容積分器的非理想特性進行詳細的討論;本設計的sigma - delta調制器採用2 - 1級聯結構和一位量化器，調制器採用全差分開關電容電路實現;同時對整個調制器的各個模塊進行了電路設計，包括跨導放大器、開關電容積分器、量化器、兩相非交疊時鐘等，並利用hspice和spectre模擬工具對這些電路進行模擬測試;最後，利用matlab軟體和simulink工具對整個級聯調制器進行行為級模擬。With 20, 000m2 of floor area, 100, 000m2 of building area, including a product exhibition and trading center combining exhibition, business negotiation and business meeting, a enterprise service center for one stop service combining base management, industrial and commercial and administration, customs, tax affairs and trading, a r & d center for mould technology combining mould manufacturing technology research and development, test and inspection, consultation and enterprise technical service, a mould technology training center for training professional people including senior technical staff, senior sales and marketing staff and senor technicians, and an information service platform combing the synergetic data exchange and corporations interaction to achieve cad / cam / cae / capp, electronic commerce, “ corporation database of mechanical industry ”, “ database of mechanical and electrical products ”, “ database of talents resource for mechanical industry ”, “ database of experts brain for mechanical industry ” as well as providing public information to the enterprises in the base
佔地面積2萬平方米，建築面積10萬平方米，包括集產品展示、貿易洽談、商務會議於一體的產品展示交易中心；集基地管理、工商行政、海關、稅務、經貿等一站式服務的企業服務中心；集模具製造技術研究開發、檢測、咨詢、企業技術服務於一體的模具科技研發中心；用於培養培訓高級工程技術人員、高級營銷管理人員、高級技術工人等專業人才的模具技術培訓中心；集實現cad / cam / cae / capp的異地協同數據交換和企業間的交互、電子商務、 「機械行業企業數據庫」 、 「機電產品數據庫」 、 「機械行業人才資源庫」 、 「機械行業專家腦庫」於一體並為基地企業提供公眾服務的信息服務平臺。A novel cycloconverter - rype three - phase hf link inverter topology for soft - switching based on phase - shifted full - bridge mode is proposed, whose main advantages are as follows : under the conditions of d < i < and overlap - d, the switches of the leading leg are turned on at zvs and the switches of the lagging leg are turned off at zcs and all switches of the cycloconverter circuit are commutated in the overlapping mode in the interval of zero voltage, which makes the circuit realize soft switching to the utmost extent and reliably solve the problem of peak voltage caused by the storing energy of leakage inductance of hf transformer
論文提出一種新型移相全橋軟開關周波變流型三相高頻鏈逆變器，電路的主要優點是：前級移相全橋的移相角控制在_ d _ i和_ （ overlap ） - _ d條件下，超前橋臂零電壓開通，滯后橋臂零電流關斷，並使周波變流器所有開關在零電壓期間重疊換相，使整機開關最大程度地實現了軟開關，並可靠解決了高頻變壓器漏感儲能引起的電壓尖峰問題。The relays may lack the high speed switching characteristic of the solid - state state switches used by other preamplifiers, but they also have none semiconductor distortions and noise which accompany analog gates and voltage controlled amplifiers
與其他前級放大器所用的半導體開關相比，這些繼電器缺少高速轉換的特性，但它們沒有隨著模擬開關和電壓控制放大器所帶來的半導體失真和噪聲。A novel high - power pollution - free smps is presented in this paper, which accomplishes simultaneously the goal of soft - switching pwm, the input / output isolation, the output voltage regulation and three - phase pfc with a single - stage power processor and simple pseudo - phase - shift control circuit. therefore, compared with the normal two - stage system, the single - stage power supply has simpler structure, lower cost, higher efficiency and easier to control. the proposed smps can be used in the three - phase power system, and can output high power over kw - order and input / output ( i / o ) isolation dc power supply
本文提出的新型無污染大功率開關電源正是採用三相三線制輸入電源，利用單級偽相移零電壓零電流開關脈寬調制（ pps - zvzcs - pwm ）全橋變換器完，成功率因數校正（ pfc ）和輸出電壓快速調節、隔離的雙重功能，並且該變換器開關管在零電壓或零電流下通斷，顯著的減小了emi 。Aiming at the need of agility of switching in the data communication system, we design the switching matrix net which used analog switching integrate circuit
針對數據通信系統中線路自動控制及靈活轉接的需要，設計了採用模擬開關陣列集成電路的級連，來構成交換矩陣網路。Abb ' s scope of delivery for the three gorges ? shanghai link includes two hvdc converter stations comprising 28 converter power transformers and six smoothing reactors, switchgear and advanced control equipment
Abb向三峽上海輸電路線交付的范圍包括兩個hvdc換流站，這兩個換流站由28個換流變壓器、 6個濾波反應器、開關櫃以及高級控制設備構成。It consists of forward stage and backward stage, of which the forward stage is a single - phase boost power factor correction circuit using ic uc3854. the backward stage main circuit is a full - bridge converter using phase - shifting control soft - switching technique
該開關電源分為前級和后級，前級為採用boost結構的單相有源功率因數校正電路，后級為採用移相控制軟開關技術的全橋變換器。A voltage - mode synapse circuits with simple structure, high speed and high precision was designed firstly. then, a bicmos technics based circuit called verdict - converting switch ( vcs ) was put forward as substantial components of mtncs. based on this, an approach was proposed for designing the circuits of multi - thresholded verdicting function ( mtvf ) at switch level
先提出了一種結構簡單，線性度好，併兼顧精度的突觸電路，然後提出一種基於bicmos工藝的判別轉換開關電路，在此基礎上，結合限幅電壓開關理論，提出從開關級設計多閾值神經元閾值判別函數電路的一般方法。The system solves the problem that one device can control many parameters testing. it can complete auto - test and auto - data - collection of acting time difference between the 8 contract resistances and 6 switches without debugging the power by hand. serial communication program can automatically transmit the testing data and information to the upper computer after the data testing
機車電器測試系統解決了一臺裝置進行多項參數測試的計算機控制問題，能進行8路接觸電阻、 6路開關的動作時間的自動測試、通道的自動切換及數據採集；並無須人工調試電源；串口通信程序在測試完畢后自動向上級計算機傳輸測試數據和信息交換。Five groups of 8 8 matrices are developed by the matrix mt8808. they can meet the switching request of the massive input and output signals in the adapter, and avoid with the results that the wire to be complex and the component number to be oversize because the switching matrix is
主要的研究內容和創新點如下: 1 ）提出了基於模擬開關矩陣mt8808器件實現矩陣級聯的方法採用mt8808實現5組8 8矩陣，解決了適配器中大量信號切換的要求，避免了用分立元器件實現開關矩陣所導致引線復雜，器件數目過大的缺點。In the approach, non - load machine switch is replaced by scr controlled by mpu to regulate the temperature. this control precision is greatly improved, and at the same time parameters can be automatically stored and displayed during the manufacturing process, it also included some other auxiliary controlling functions, such as over - temperature alarm, work piece input or output reminding, etc. the fuzzy pid control algorithm consists of fuzzy control and digital pid adjustment
針對鹽浴變壓器只能進行無載分接、有級調節的問題，本方案採取在變壓器原邊串接晶閘管的方法，將手動轉換的溫度控制，即無載分接開關機械觸點調節電壓改為單片機自動控制晶閘管的導通，將手動控制溫度改為模糊pid控制，從而提高了控制精度，降低了工人勞動強度。On - load tap - changer of transformer can work under load, transfer quickly, change one class voltage about 3 - 6 ms each time ; switch can be operated by hand or electrically - driven and distant place operate while being electronic too, easy to realize automatic management ; transfer and keep relatively heavy range is generally more than 15 % ; switch and voltage transformer structure are more complicate than others, make man - hour and material increase, the cost is relatively high
變壓器的有載調壓能帶負載調壓，調壓速度快，每調換一級電壓約3 6s ；開關可手動、電動操作，也能遠方電動操作，便於實現自動化管理；調壓范圍較大，一般為15以上；開關和變壓器結構比無勵磁調壓的復雜，製造工時和材料增多，成本較高。Multilevel analysis of switch state alternation and a fast and efficient algorithm of distribution optimization operation were provided in this paper
論文結合開關交換和網路構建的思想，提出多級開關狀態互換分析，構築快速高效的配電網路優化運行演算法。In order to adapt well to the development of the overhaul with the locomotive, the article introduces a digital auxiliary motor test - bed based plc and touch screen technology, being an updated product of routine manual switch and relay - controlled test - bed, it can accomplish the functions such as testing, checking and other manipulations to d. c engine, a. c engine and phase converter through hmi - touch screen
為適應機車檢修水平現代化的發展步伐，本文研究設計了基於plc和觸摸屏技術控制的機車數字化輔機試驗臺，作為常規的手動開關和繼電器控制試驗臺的升級換代產品，通過人機界面（ hmi ） ? ?觸摸屏完成對直流電機、交流電機、劈相機的試驗檢測操作。Therefore, the study on single - stage pfc and converter technique has important significance for restraining harmonic pollution, founding green power supplies and realizing miniaturization and lightweight of switching power supplies
因而研究單級功率因數校正及變換技術對抑制諧波污染，開創綠色電源，以及實現當今開關電源的小型輕量化具有重大意義。On the base of introducing basic application technologies, the paper studies the boost - flyback single - stage isolated pfc converter with active clamping and soft switching emphatic ~. lly
在介紹了基本應用技術的基礎上，論文對帶有源鉗位和軟開關的升壓型反激式單級pfc變換器做了重點研究。A single - stage pfc converter combines the pfc stage and a dc / dc converter into one stage with a shared switch and controller. implements the input current shape and provide tight output regulation. the advantages and disadvantages of pfc approachs are analyzed and compared
單級pfc變換器把pfc級和dc / dc級集成在一起，共用開關管和控制電路，同時實現輸入電流的整形和對輸出電壓的調節。分享友人