直流斬波 的英文怎麼說

中文拼音 [zhíliúzhǎnbō]
直流斬波 英文
dc chopping
  • 直 : Ⅰ形容詞1 （成直線的; 硬挺的） straight; stiff 2 （跟地面垂直的; 從上到下的; 從前到后的） erect; v...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 斬 : 動詞（砍） cut; chop; behead
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 直流 : direct current （dc）; constant current; steady current; continuous current; zero frequency curre...
  1. A design adding a dc chopper after the triphase rectification was given to reduce the peak of the pulse of voltage, aiming at the characteristics that the magnitude of the rated voltage of permanent magnet synchronous motor ( pmsm ) is far below that of the power supply, also the electric parameters of the devices were given

    針對專用永磁同步電機額定電壓大大低於電網電壓這一特點，為降低電機上承受的峰值脈沖電壓，設計了在三相整流之後增加一級直流斬波器並給出了相應的電氣參數。
  2. Firstly. operation principle of induction heating is introduced and the actuality of the power supply for induction heating is summarized. then, the scheme of structure of the power supply is established : uncontrolled rectifier and buck chopper constitute dc circuit. in this part, operation principle of a kind of soft switching buck chopper is presented mainly and the conclusion that the power semiconductor devices operate in soft switching is also illustrated by analysing the operation principle of all stages ; series resonant inverter is selected as inverter circuit via comparing the advantage and shortcoming of parallel resonant and series resonant. moreover. the work principle of series resonant inverter is analysed and the calculating method of the best dead time is put forward as well

    文中首先介紹了感應加熱電源的工作原理並綜述了國內外的研究現狀。接下來分析並制定了電源主電路的構成方案：在對比幾種功率調節方式的基礎上選擇了不控整流加斬波調壓作為直流部分。在這部分里，重點研究了一種軟開關buck變換器，通過分析各階段的工作原理說明了開關器件如何工作在軟開關狀態；對于逆變器部分，在比較了串、並聯逆變器優缺點的基礎上選擇了串聯諧振逆變器，並詳細分析了串聯逆變器的工作原理，提出了最佳死區的計算方法。
  3. Two - quadrant current chopper control for brushless dc motor

    電流型兩象限斬波器控制的無刷直流電動機
  4. Railway applications - rolling stock - combined testing - part 2 : chopper - fed direct current traction motors and their control

    鐵路設施.機車車輛.聯合試驗.第2部分:斬波器供電直流牽引電動機及其控制設備
  5. Dc chopping circuit

    直流斬波電路
  6. The high frequency inverter power can invert 75 - 130 volt vibrating dc voltage which come from battery charge into 110 volt, 20khz ac voltage. the control of high frequency inverter power consists of two parts : chopper control and inverter control

    給出了直流斬波電路及全橋逆變電路的工作原理，此高頻逆變電源可將75 130v的蓄電池直流電壓逆變為110v ， 20khz的交流電壓。
  7. （ 2 ） the major circuit has been established, composed of rectifier 、 buck - chopper 、 push - pull inverter and matching network, which realizes high - power supersonic ac output. to achieve maximal output power, the pulse frequency modulation ( pfm ) has been applied to auto - adjustment of output frequency, which corresponds to the load ' s resonant frequency

    （ 2 ）建立了超聲電源主電路，其中包括：整流、直流斬波、推挽逆變器和匹配網路等部分，實現了大功率超聲頻交流電的輸出，輸出頻率的脈頻調制（ pfm ）和輸出功率的脈寬調制（ pwm ） 。
  8. Chopper control can change 75 - 130 volt vibrating dc voltage into 70 volt dc voltage and inverter control can invert the dc voltage into 70 volt, 20khz ac voltage, at last, from transformer we can get 110 volt, 20khz ac voltage

    斬波控制可將75 130v波動的蓄電池直流電壓變成70v的直流電壓。逆變控制可將此直流電壓逆變為70v 、 20khz的交流電壓，最後經變壓器得到110v 、 20khz的交流電壓。
  9. Today, mw wind generators substitute 600kw generators gradually and become the popular units of international market of wind power generation. the trends of units are variable speed constant frequency and large - scale and pitch control. there are many different generators which are variable speed constant frequency generator. in this paper the unit is fully - fed magnet wind turbine generator. the magnet wind turbine generator grid - connected inverter is the key component of connected system. the main function of this component is inverting the dc to three - level volage and connecting the electric net

    實現變速恆頻發電的方法眾多，本文研究的是較常用的一種方案。該方案採用直驅永磁風力發電機通過變頻器直接連接到電網。永磁風力發電機並網逆變器是並網發電系統的核心部分，其主要功能是將經過整流、斬波升壓后的直流電逆變成三相交流電，並送入電網，實現並網。
  10. This system is on the safe side and higher efficiency, because of using the field oriented controlled modem technology and the boost - buck converter of dc, the closed loop control of voltage, current and speed, and combining with many ways of safeguard and reducing power wasting

    通過應用先進的電壓矢量控制和直流升降壓斬波技術，採用電壓、電流和轉速的閉環控制，結合多種保護措施和降低功耗方法，使得該系統具有工作安全可靠、功耗低等優點。
  11. The detecting techniques of harmful currents, the modulation methods of novel upfc and the balancing control of capacitors voltage on dc link are studied thoroughly. in order to be fit for three - phase four - wire system, the method of balancing control using chopper presented in literature [ 29 ] is mended

    分析了零序和負序電流對新型upfc直流側電容電壓的不同影響，對文獻[ 29 ]提出的傳統upfc的直流側各電容電壓的均衡控制方法進行了仔細研究，提出了採用b型直流斬波器來控制新型upfc的直流側電容電壓的新方法。
分享友人
分享到 Line

分享到臉書