逆功率試驗 的英文怎麼說

中文拼音 [nìgōnglǜshìyàn]
逆功率試驗 英文
reverse power test
  • 逆 : Ⅰ形容詞1 （方向相反） contrary; counter 2 [數學] inverse; converse Ⅱ動詞1 （抵觸; 不順從） go aga...
  • 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
  • 試 : 名詞（古代占卜用的器具） astrolabe
  • 驗 : 動詞1. （察看; 查考） examine; check; test 2. （產生預期的效果） prove effective; produce the expected result
  • 試驗 : trial; experiment; test
  1. However, the result of the simulation, in which all the parameters are kept constant except the primary and secondary inductance, is that 3 % higher conversion efficiency can be achieved in ccm than in dcm

    但對輸出功率和繞組電阻相同時逆變電路模擬結果表明， ccm的效率比dcm提高了三個百分點；試驗結果說明盡管ccm的繞組電阻比dcm的大，變換器效率仍提高了1 . 5 。
  2. Reverse power relay trip test

    逆功率脫扣試驗。
  3. 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。
  4. Under the test conditions of ud = 2800v and 350hz switching frequency, the current in three phase inverting test reached to loooar. m. s, which can fully meet the requirements of 350km / h emu with 2600v link voltage and 950ar

    在中間直流環節電壓u _ d = 2800v ，開關頻率為350hz的條件下，逆變的試驗電流達到了1000ar . m . s ，完全能夠滿足350km h高速動車組對變流器中間電壓2600v 、輸出電流為950ar . m . s的要求，表明了地面試驗機組的研究獲得了成功。
  5. Reverse power test

    逆功率試驗
  6. This paper study a two - phase inverter - fed induction - motor drive, which can be widely used for low - power, variable speed drive system. the study has completer the design of two - phase inverter and made up of the two - phase inverter - motor system for experimental use. it is a variable frequency adjustable speed system with a open - loop control of rotational speed, which consists of singlechip controller, power drive device, inverter - fed device, a low power tow phase induction motor and safeguard circuit

    本文研究了一種新型電壓空間矢量控制兩相逆變器?異步電動機的變頻調速系統，該系統可以廣泛應用於小功率、寬調速運行的場合。本項研究完成兩相逆變器的設計，並組成了試驗用的兩相逆變器?異步電動機系統。系統是一個轉速開環的變頻調速系統，由單片機機控制電路、功率驅動電路、逆變器主電路、保護電路組成。
  7. Hfl inverters in discontinuous current mode ( dcm ) are extended to those in continuous current mode ( ccm ), which is very important for improving the conversion efficiency. the reason is that the peak current and rms current of power switches can be reduced sharply

    本文將工作于dcm方式的單級高頻鏈逆變電路擴寬到ccm工作方式，模擬和試驗結果表明ccm模式下流過功率管電流峰值和有效值明顯減小，這對提高逆變電路的效率具有重要意義。
  8. Based on the test data, the result is : the inverter power source has good technology index in every items and has good synthetical quality, has obvious work effect in improveing the ozone output and reducing the power consumption

    通過測量的具體的試驗數據分析比較，結果表明該逆變電源各項技術指標及綜合性能很好，對提高臭氧的產率，降低功耗具有明顯工作效果。
  9. Its test results indicate : voltage mode inverters with high frequency link have the advantages such as high frequency electrical isolation, simple topology, two - stage power conversions, high power density, bidirectional power flow, good line current waveform, low audio noise, high converting efficiency, and high input power factor etc. this kind of converter lay the key technical foundation on new type high power density, high efficiency and low cost asi

    設計的1kva270v 10 % dc / 115v400hzac單極性移相控制雙向電壓源高頻環節逆變器原理試驗表明，這類逆變器具有高頻電氣隔離、電路拓撲簡潔、兩級功率變換（ lfac / hfac / lfac ） 、功率密度高、雙向功率流、音頻噪音低、變換效率高、網側功率因數高等優點，為新一代高功率密度、高變換效率、低成本航空靜止變流器奠定了關鍵技術基礎。
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