逆變流器 的英文怎麼說
中文拼音 [nìbiànliúqì]
逆變流器
英文
inverter-
Commutation failure factors analysis in hvdc transmission system
直流輸電系統中逆變器換相失敗的因素分析In this paper, a kind of output current feed - forward circuit is added into the input of the current loop. by adding this compensatory circuit, the output character of the inverter is improved greatly
本文還研究了一種提高逆變器輸出電壓外特性的思路,通過將負載電流正反饋給逆變器的電流環輸入端,從而達到提高輸出電壓的外特性的目的。A circuit topology of the inverter with duty cycle extended active clamp forward style high frequency pulse dc link is adopted by each independent inverter. each inverter is cascaded by a circuit with duty cycle extended active clamp forward style high frequency pulse dc link and a dc / ac inverting bridge. the control strategy of voltage mode pwm forwardback is adopted by the former, and the control strategy of three - state discrete pulse modulation ( dpm ) hystersis current is adopted by the later
每個獨立的航空靜止變流器採用占空比擴展有源箝位正激式高頻脈沖直流環節電路拓撲,由占空比擴展有源箝位正激式高頻脈沖直流環節電路與dc ac逆變橋級聯而成,前級採用電壓型pwm前饋控制技術,后級採用三態dpm電流滯環控制技術。1. ultra compact metal housing : small and rugged, stores easely in any tool box, briefcase or glove compartment. 2. low battery shutdwn : automatically detect low.
因為我們通常是將220伏交流電源整流變成直流電來使用,而逆變器的作用與此相反,因此而得名。Low voltage driving is available without inverter
低電壓支流驅動,不需要逆變器The modulating signals of firing delay angle at the rectifier and firing lead angle at the inverter, and the excitation voltage are chosen to be control variables. the offset of the current of dc line and the extinction angle and the power angle of generator are chosen to be control outputs. then a nonlinear controller is designed for the system under study according to direct feedback linearization theory
以整流側觸發延遲角的調節信號、逆變側觸發超前角的調節信號以及發電機勵磁電壓作為控制變量,以直流線路電流、逆變側關斷角以及發電機功角的偏移量作為目標輸出,用直接反饋線性化方法設計了系統的非線性控制器。It is required to research a 600w 28vdc / 360vdc converter as prepositive set of static inverter in a certain project
在某機載靜止變流器項目中,需要研製一臺600w28vdc / 360vdc直流變換器作為雙buck型逆變器的前級。The algorithm of svpwm that is adopted by the system implements motor speed - regulation by control of magnitude and phase of motor flux. it can generate less harmonics in the output current of power inverter and less losses of ac motor, reduce pulsant component in output torque and raise availability of dc supply voltage
系統採用的svpwm演算法通過對空間磁鏈矢量幅值和相位的控制來調節電機轉速,減少了逆變器輸出電流的諧波,降低了脈動轉矩,提高了電壓的利用率。Since the industrial frequency transformer fulfills the boosting voltage part, most of the inverters have such drawbacks as larger size, more weight and bigger ac noise
目前,大多數戶用光伏逆變電源產品存在著體積、重量、交流噪音大等不足之處,原因在於升壓環節由工頻變壓器實現。This system consists of a full bridge pwm ( pulse width modulation ) regenerative rectifier or so - called vsc ( voltage source converter ) that connected to pcc ( point of common connection ) at the power utility grid through a passive interface circuitry
這種系統包括一個pwm全橋可逆整流器或者所謂的電壓源變換器,通過無源電路介面與電網的pcc點(公共連接點)相連。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。Due to the complexity of the structure and control of cycloconverter - type three - phase hf link inverter for soft - switching based on phase - shift - controlled full - bridge mode, a simple and optimized vvvf control strategy is proposed. this control strategy includes : produced pwm by space voltage vector ( svm ) and equivalent carrier frequency fe = 1 / te are introduced into the pdm control of the cycloconverter ; softened equivalent pwm wave is generated at the notches of hf voltage pulses ; the harmonious control between regulating pulse width by phase - shifted angle and regulating voltage of equivalent pwm is to minimize the harmonics content of output voltage of the inverter
西安理工大學博士學位論文針對這種前級移相全橋軟開關周波變流型三相高頻鏈逆變器結構和控制的復雜性,提出了一種實現簡單而整體優化的vvvf控制策略:將空間電壓矢量產生p姍的方法svm和等效載波頻率fe = 1 / te引入到周波變流器的pdm控制;按高頻電壓脈沖前後沿軟化等效p翎波;用移相調節高頻脈沖寬度和等效p姍調壓協調控制逆變器輸出電壓,在滿足輸出電壓條件下使諧波最小。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。Lamp controlgear - particular requirements for electronic invertors and convertors for high - frequency operation of cold tubular discharge lamps neon tubes
燈具控制開關.冷管放電高頻燈具電子變流器和逆變器專門要求This paper presents a novel single phase aeronautical static inverter. a novel combining two - transistor forward converter is presented and applied in the front of three - level hysteresis current controlled inverter, and a single - phase 6kva aeronautical static inverter is developed
本文介紹了一種新型的單相航空靜止變流器,電路通過一新穎雙管正激組合式變換器作為三態滯環控制電流型逆變器的直流輸入前級,成功研製出6kva單相航空靜止變流器。The 500va experimental prototype of aero static inverter has the advantages of flat volt - ampere characteristic, small thd of output sinusoid voltage, high efficiency, small size, light weight and low cost
500va輸出的航空靜止變流器樣機試驗結果表明,逆變電路輸出外特性平直,正弦電壓失真度小,變換效率高,體積小,成本低。This paper researchs the principle of three - phase voltage - source reversible pwm inverter. the converter based on the intelligent power module ( ipm ) is designed
文章分析了三相電壓型可逆pwm變流器的工作原理,設計了以ipm智能型功率模塊為中心的三相可逆pwm變流器。For this reason, it ' s application will be restricted. this paper designs a circuit topology structure of multi - functional converter, which contains rectifier, chopper and inverter, it can function in soft - starting, chopping and doubly - fed adjusting speed for doubly - fed motor
本文設計了一種適用於雙饋電機多種運行狀態的多功能變流器的拓撲結構,它將整流器、斬波器與逆變器結合在一起,能完成電機的軟啟動、斬波、雙饋調速。A new type 270v input / single phase 115v output aviation static inverter ( asi ) is researched in this paper. adapting a modularized scheme, the asi is constructed by four isolated dc - dc converters and a cascade inverter
本文研究270v輸入/單相115v輸出航空靜止變流器,採用一種模板化的方案,靜止變流器由多路隔離直流電源和級聯逆變器構成,本文重點研究其中的直流變換環節。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。分享友人