C - commutate 中文

commutate vt.【電學】使(電流)換向；變換(交流電)為直流電。

We also select the microchip pic16f877 made by microchip co . ltd as a control chip to realize micro - computer control . this system use three separate channel to find out the “ across the zero point “ of each back - emf . the program use digital filter to wipe off the pwm interferences and the commutating interferences 系統中采用三個獨立通道分別檢測無刷電機三相繞組的反電勢的各自過零點，同時在軟件中采用數字濾波以消除其它噪聲干擾，使檢測電路檢測到的反電勢過零點更加準確可靠，實現了對五位置傳感器直流無刷電機的數字控制。
The microprocessor is used to realize digital control as flip plus of the scr . the ic chip sa866ae of mitel company is utilized as the low frequency signal generator of the system . furthermore in the zero - current detection circuit , use the photocoupler gaalas ired and photo ic to detect zero - current , furthest shorten the commutating “ died region “ , prevent the current from distorting 設計中采用單片機控制可控硅的觸發脈沖，實現數字化控制，并利用mitel公司的三相pwm交流電機脈寬調制芯片sa866ae ，成功研制了交-交頻器中的低頻信號發生器裝置，效果良好；此外利用用光電檢測元件進行系統零電流的檢測，盡可能地縮短換相死區，防止電流發生畸變，成功地解決了原有低頻電源系統中存在的兩大難題。
The sample ru1e was introduced . the e1ectr1c c 1rcul t tor magn1 ty , t1 lter and commutate on the s1gna1 of gyroscope 1n s1 s . “ l ' he paper a1so designed the e1ectric circu1 t for a / d converter and for interface c ircu1t wi th cpld techno1ogy 介紹了采樣定理；設計了陀螺儀信號的前放、濾波、整流電路；設計了陀螺儀數據采集的a / d采樣；利用cpld技術設計了數據采集的接口電路。
This paper uses “ virtual neutral point method “ to measure the “ zero crossing “ , then the soft deal “ zero crossing “ to get the six key position to commutate 本文采用虛擬中點的方法來識別反電勢過零點，然后對過零點進行處理得到無刷電機換向的六個關鍵位置。
commutation
By using phase shifting control between right bridge leg and left bridge leg , the output cy cloconverter commutating while the bi - polarity three - state high frequency ac volage from the input cycloconveter is zero , . and commutation overlap of the output cycloconverter and polarity selection of the input voltage , the leakage inductance energy and the output filtering inductance current are naturally commutated , and zvs switching of the output cycloconverter are realized , the surge voltage and surge current of the output cycloconverters are overcome 通過輸入周波變換器右橋臂相對左橋臂的移相，讓輸出周波變換器功率開關在輸入周波變換器輸出的高頻交流電壓為零期間進行換流，并借助輸出周波變換器換流重疊和輸入電壓極性選擇，從而實現了變壓器漏感能量和輸出濾波電感電流的自然換流、輸出周波變換器的zvs開關，解決了輸出周波變換器固有的電壓過沖和環流問題。
We also select the microchip pic16f877 made by microchip co . ltd as a control chip to realize micro - computer control . this system use three separate channel to find out the “ across the zero point “ of each back - emf . the program use digital filter to wipe off the pwm interferences and the commutating interferences 系統中采用三個獨立通道分別檢測無刷電機三相繞組的反電勢的各自過零點，同時在軟件中采用數字濾波以消除其它噪聲干擾，使檢測電路檢測到的反電勢過零點更加準確可靠，實現了對五位置傳感器直流無刷電機的數字控制。
Secondly , in order to make the motor commutate exactly , a fuzzy neural network is used - to estimate the rotor position . based on the relationship of voltage , current , flux linkage and corresponding position ( ) , a fnn is proposed whose structure and parameters are trained based on improved genetic algorithm . through measurement of the phase voltages and phase currents , the flux linkage can be figure out 根據無刷直流電機中的電壓、電流、磁通和轉角之間的相互關系，構造一個基于遺傳算法訓練網絡結構和參數的模糊神經網絡，通過檢測電機的相電壓和電流計算出相磁通，然后利用計算出的相磁通和電流作為網絡的輸入，經網絡運算后，得出電機轉子的轉角。
In the system , control unit accomplishes back - emf zero - crossing information reading and closed loop commutation . the system eliminates the pwm interferences and the commutating interferences by filtering with software algorithm . in order to make the bldc commutate exactly , the method of three - point estimation is used for phase locking in the system . the system also accomplishes several important objects , such as tmppt of photovoltaic arrays , unmanned supervision of the system , fault detection etc . the results of the experiment show that the device , which is made on the base of the principle above , can control the motor to complete the exact commutation 系統以motorola單片機jl3為核心，完成了系統外圍硬件電路和控制軟件設計，實現了直流無刷電機反電勢過零檢測，利用軟件濾波的方式消除了pwm波干擾及換相干擾；采用三點預估算法，進行相位鎖定，以完成直流無刷電機準確換相；同時實現了光伏陣列工作點的tmppt跟蹤、系統無人監控和故障檢測等功能。
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，并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，并可靠解決了高頻變壓器漏感儲能引起的電壓尖峰問題。
The main body of the new system hardware parts is ipc , the intelligence sport control card pcl - 839 is embedded in the isa standard slot of ipc . the data is commutated between the card and the ipc throught these internal data bus in pc . the machine tool will be controlled by the data . the exterior data is commutated between the pcl - 839 and exterior equipments by pcld - 782 / 785 . the development of the software is to adopt the visual c + + 6 . 0 . because the intelligence sport control card , pcl - 839 , has the function of edit and translate programme by its own application prog839 . exe . there are a great deal of function in the application , which reduce a great deal of work to develop the new system . the open - type structure is adopted , so it has a lot of space to develop better and better 本數控系統硬件部分利用工業ipc機作為主體,智能運動控制卡pcl - 839插在其isa標準插槽上,通過內部總線實現數據的交換和控制從而達到控制三座標數控機床的目的,外部數據的輸入輸出部分采用pcld - 782和pcld - 785輸入輸出卡;軟件的開發是采用visualc + + 6 . 0為開發工具,由于pcl - 839智能運動控制卡具有自行編譯功能,而且自行封裝了prog839 . exe編譯軟件提供了大量的可調用的功能函數,使開發者不必重復開發數控代碼的編譯等工作,減少了數控系統開發的工作量,同時控制系統軟件采用開放式結構,具有可重構、可擴展的特點,給用戶留有二次開發的余地。
A new technique useful for parallel connection of commutation cells is introduced in this paper , it consists of using small inductance in order to ensure dynamic and static share of the commutated current among the different switches . operation principle , theoretical analysis and designing procedure are presented . experimental results , obtained from a 3000w boost prototype using two commutation cells 本文在對apfc模塊電路中的并聯均流技術進行討論的基礎上，著重對內部單元電路間的并聯均流技術進行了深入研究，并對一種新的并聯均流技術進行了理論分析、模擬仿真，結合中功率( 3kw ) zvt - apfc模塊電路實驗，探討了這種并聯均流技術應用在apfc電路中的設計方法。
Hardware research focuses on interface circuit including simulating sensor simulating actuator and monitoring power . software design consists of data collection commutating software graphics interface and data processing . the project can meet the requirement for engineering application through primary testing 其硬件研究主要是接口電路設計，包括發動機傳感器信號模擬、執行機構信號模擬、激勵電源監測；軟件研究包括數據采集軟件、網絡通訊軟件、人機交互界面和數據處理軟件設計。
The generator is verified to be of well performances by experiment . the third part concerns the control system of pm generator in vehicle application by commutating and inversion . considering the development of future power supply of auto electric system and the economizing on energy , the multi - voltage power supply system for future autos power supply system is introduced , and the design is given in detail 最后，結合現代電力電子技術，利用整流橋、逆變器、 mosfet等元器件設計并實現了車用永磁發電機恒壓輸出控制；從未來汽車電氣系統的發展方向和高效節能方面考慮，提出未來汽車的多電壓供電系統的典型配電模型，并對該模型進行具體設計，實現多電壓供電的功能，并給出了控制線路中各主要部分的波形。
The microprocessor is used to realize digital control as flip plus of the scr . the ic chip sa866ae of mitel company is utilized as the low frequency signal generator of the system . furthermore in the zero - current detection circuit , use the photocoupler gaalas ired and photo ic to detect zero - current , furthest shorten the commutating “ died region “ , prevent the current from distorting 設計中采用單片機控制可控硅的觸發脈沖，實現數字化控制，并利用mitel公司的三相pwm交流電機脈寬調制芯片sa866ae ，成功研制了交-交頻器中的低頻信號發生器裝置，效果良好；此外利用用光電檢測元件進行系統零電流的檢測，盡可能地縮短換相死區，防止電流發生畸變，成功地解決了原有低頻電源系統中存在的兩大難題。
Gca silicon commutate battery charger are the ideal portable tools for charging , they are composed with the conditions of voltage dropping through rectifier transformer , then the bridge rectifying of rectification circuit . the output full - wave pulstin current charge the storage battery . the voltage changing composed with multiband switch . the outputcurrent can be adjusted . this kind of product used any moment onctarging anyplace Gca系列整流充電機是由整流變壓器的降壓，再經過流電路的橋式整流，輸出全波脈動直流對電瓶進行充電，電壓調速同多頭波段開關組，輸出流可以調節，該產品用任何需要補充充電的場所。
Besed on the circuit , electromagnetism and electric power electronics theories , we have done some theory research on the harmonics induced by thyristor commutate circuits of ac - dc locomotive , surge electromagnetism process . we calculate the theory content of harmonics using the fourier arithmetic under thyristor commutate and surge electrmagnetism process 論文根據電力機車類型的不同，運用電路、電磁場和電力電子學理論研究了交?直型電力機車相控整流時諧波的產生機理、勵磁涌流的電磁過程，并對晶閘管相控整流和勵磁涌流時的理論諧波含量進行了傅里葉分析。
According to the following design theory : the dsp calculates in real time and produces three phases spwm waves to control the on or off of the 6 igbts in ipm respectively . ipm then inverts the commutated single phase direct current ( insulated gate bipolar transistor ) into three phases alternating current . when modulated signals of spwm are changed , the on - off time of switches also changes , so as to the voltage and frequency of output signals 本文提出了一種基于dsp (數字信號處理器tms320f240 )的通用的三相間接變頻電源系統，利用分段同步調制法和混合查表法，實時計算不同頻率下的采樣周期、電壓幅值、輸出脈寬，產生雙極性spwm波形，經驅動放大后用于ipm ( intelligentpowermodule )中的絕緣柵雙極型晶體管柵級驅動，以控制電源的輸出電壓和頻率，實現變頻電源的智能數字控制。
A current - doubler - rectifier ( cdr ) zvs pwm ( half - bridge ) three - level converter is proposed in this paper . zvs can be achieved for all the switches in a wide load range with the use of the energy stored in the output filter inductances . the output rectifier diodes commutate naturally without voltage oscillation and voltage spike 針對傳統(半橋)三電平直流變換器的一些不足，本文提出一種倍流整流方式pwm零電壓開關三電平直流變換器，可以使開關管在全負載范圍內實現零電壓開關，副邊整流二極管無電壓尖峰，無占空比丟失。
In china , few people have made any study on it , in spite of its sophisticated technologies and high profits . this paper analyzes systematically on theory the movement of stone balls , establishing a series of commutating formula of processing parameters and bettering former processing 風水球無論是其工藝技術，還是其經濟效益都很高，但是對風水球從理論上的分析與研究還比較欠缺，在國內可以說還是空白。

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commutate

commutate vt.【電學】使(電流)換向；變換(交流電)為直流電。

commutation