control current or voltage 中文意思是什麼
control current or voltage
解釋
控制電流或控制電壓-
In this dissertation, through computer simulation, the problems of modeling, control and guidance of auvs are presented. the first part of this dissertation addresses the problem of dynamically modeling of auvs, and derives thrusters " two - dimension nonlinear dynamic model, which has axial flow speed and propeller rotational velocity as two state variables, voltage or current of motor as inputs, and thruster force and torque as output. the second part focuses on the nonlinear adaptive sliding mode control of auvs in diving plane and steering plane
本論文系統研究了自主式水下航行器的建模、非線性自適應滑模控制、以及深度調整和水平面導引方法等問題，具體成果和創新點如下1 、根據流體力學理論，建立了螺旋槳推進器的動態模型，它以螺旋槳來流速度v _ p和螺旋槳轉速n為狀態變量，以電機施加轉矩為輸入，螺旋槳推力t和轉矩q為輸出。 -
Intelligent counter digital frequency rotating speed line velocity display control transmit instruments are all adopt used advanced microprocessor for smart control. input is pulsed quantity or contect switch quantity signal, after cpu operation processing, count, rotating speed or line velocity will be clearly intuitional indicated by high brightness led numeral tube, at the same time, these signals can be changed into standard voltage current signal to transmit output. and have the functions of super - limited alarm, standard serial communication function
簡易后備操作器接收從dcs系統或pid調節器給定的模擬量信號，正常控制時，操作器輸入輸出相當于直通的，以實現dcs系統或pid調節器對執行機構的自動控制，當前級dcs系統或pid調節器發生故障時，操作器接收到故障狀態信號，即轉為手動控制狀態，由按鍵控制操作信號的輸出，當故障解除，儀表自動恢復自動狀態。 -
Are all adopt used advanced microprocessor for smart control. input is pulsed quantity or contect switch quantity signal, after cpu operation processing, count, rotating speed or line velocity will be clearly intuitional indicated by high brightness led numeral tube, at the same time, these signals can be changed into standard voltage current signal to transmit output. and have the functions of super - limited alarm, standard serial communication function
接收從dcs系統或pid調節器給定的模擬量信號，正常控制時，操作器輸入輸出相當于直通的，以實現dcs系統或pid調節器對執行機構的自動控制，當前級dcs系統或pid調節器發生故障時，操作器接收到故障狀態信號，即轉為手動控制狀態，由按鍵控制操作信號的輸出，當故障解除，儀表自動恢復自動狀態。 -
We discuss the influence on the flux and torque when the multi - voltage space vector is applied on the motor. then the strategy of producing hexagon flux or circle flux is proposed. it is believed that, in order to control the torque optimally in dtc system, the stator current needs to be observed predictably
論文在闡述異步電動機的直接轉矩控制原理的基礎上，詳細分析了多電壓空間矢量對磁鏈和轉矩的影響，給出了六邊形磁鏈和圓形磁鏈以及定子電流預測的設計方法，提出了一種新的轉速環控制方法。 -
Abstract : the system composed of intelligent control modules for three - phase induction motors is introduced in this paper. this module can conduct starting, reverse braking, and reverse conrtol with current limiting resistance. besides, it can also detect low voltage, overload, and open circuit of 1 or 2 phases, and do protection according to the detection. it especially fits to the controlling of motors which often do starting, braking and reversing
文摘:介紹了一種智能三相電機控制模塊組成的系統，能在串電阻（電抗）起動、反接制動和換向控制的基礎上進行欠壓檢測、過載檢測、斷相檢測及電機故障保護.尤其適用於起動、制動和換向控制頻繁的電機控制場合 -
The system is based on chopper constant current drive technique, according to the top level design idea, adopting advanced specical subdivision control integrate circuit and powerful function 80c196kc to organize the system frame, desiging the minimum system of single - chip microcomputer, multifunction i / o interface circuit, relay switch circuit, keyboard and display circuit, multifunction digital setting interface circuit and so on, utilizing the hso and hsi interface circuit which are owned by this single - chip microcomputer exclusively and its powerful command system to realize dual - degree switch control, automation orientation, automatically searching zero position, locking machine when stopping, frequency to set digitally, automatically adjusting speed through changing frequency, swithing subdivision or squarewave control, on the basis of above, the system also have the function of running according to the setting steps and the frequency, voltage and current to display through the led, etc
系統基於斬波恆流驅動技術，按照頂層設計思想，採用先進的專用細分控制電路和功能強大的80c196kc單片機來組建系統構架，設計了單片機最小系統、多功能i o介面電路、繼電器切換電路、鍵盤顯示電路和多功能數字設定介面電路等，利用該單片機獨有的hso和hsi介面及其強大的指令系統，實現了雙余度混合式步進電動機的余度切換控制、自動定位、零位自動搜索、停機鎖定、數字化頻率設定、自動調頻變速控制、細分方波切換控制，在此基礎上，該系統還設有按預置步運行、 led頻率電壓相電流顯示等功能。 -
In this circuit, reference current sources are used to charge and discharge capacitors. this oscillator ’ s output is very ideal through control circuit under 5. 7v reference voltage, and oscillator ’ s frequency and duty - cycle could be adjusted if reference current source or capacitors in the circuit was adjusted. and the changes of temperature and voltage affect stabilize of the frequency little
此電路利用系統內部基準源產生的電流信號來對電容進行充放電，然後經過控制電路作用后，產生的輸出振蕩波形的上升時間和下降時間非常小，更接近理想矩形波形;通過調節基準源電流信號或者電容值大小，可調節振蕩波形的頻率和占空比，同時溫度和電壓的變化對振蕩器輸出波形頻率穩定度的影響很小。 -
This product is perfect for lighting and temperature control and over - current, short - circuit protection systems ; a high - pressure type ring network ( including dual - supply ), terminal type ; measurement methods are low - voltage or high - pressure measurement, change layout box " goods ", " eye " type, the body or an integrated one
本產品具有照明及完善的溫控及過流、短路保護系統；高壓有環網型（包括雙電源） 、終端型，計量方式有高壓或低壓計量，箱變布置有「品」 、 「目」型，分體或一體式。 -
This paper presents a method of test, estimation and predication of some state parameters of the power unit in power and electric equipment, these parameters can be temperature, voltage, current and so on ; when attaining the values of these parameters at the next state, whether the power unit will go into the malfunction or not can be knew, according to the result, some measures can be made ; by controlling the values of correlative parameters, the unit could be maintained in its optimal running status ; so the damage to the power unit can be prevented, the running quality of the driving system can be guarantied, and the optimized control level of the system can be improved
本論文提出了一種利用預測估計的方法，對電力電子設備中的功率器件的某些主要狀態參量（如：溫度、電壓和電流）進行測試、估計並預測，從而得出未來的運行狀態；然後據此判斷該功率器件是否已進入故障范圍，以便提前採取措施，通過對相關參數的調整來保證功率器件始終工作在最佳狀態；這樣，既避免了功率器件損壞的發生，又避免了驅動系統故障狀態的出現，明顯地提高了系統優化控制的水平。 -
Win2000 passenger elevators without machine room or with mini machine room represent three most advanced control technologies for elevators in the current world, i. e., synchronous gearless towing machine, microcomputer series communication, and variable frequency, variable voltage and variable
Win2000系列無機房小機房電梯採用了當今最先進的電梯控制技術的三個代表：同步無輪曳引機微機串列通信調頻調壓調速vvvf控制。 -
Based on the analysis of the control theory of the dtc of doubly fed induction machines, in this paper, two control schemes are proposed : the least mode of rotor current and the stator power factor adjustable mode. in the first control scheme, we may make the rotor voltage the same or opposite phase with the rotor current by throwing suitable rotor voltage vector
在第一種控制方案中，通過施加轉子電壓矢量，使轉子電流與轉子磁鏈垂直，轉子勵磁全靠定子電流，即可保證轉子電流和轉子電壓同相或反相，從而實現了轉子側功率因數為1 ，可減小轉子側變頻器的容量。 -
For the research of the damping control strategy one type of controllable damper, magnetico - rheological ( mr ) damper, was constructed and tested, the damping force and displacement characteristic curves, the damping force and velocity characteristic curves are obtained, so that the damping force and voltage ( current ) model, or the damping coefficient and voltage ( current ) model can be further obtained
通過特性試驗，得到示功特性、速度特性，經轉換得到阻尼器的阻尼力? ?電壓（電流）模型和阻尼系數? ?電壓（電流）模型。這樣在研究中，可以採用開環控制方式或力反饋控制方式實現阻尼力的控制。 -
This system has various kinds of sensors, such as pressure, temperature, electric current, voltage, controlling synthetically, etc. after a sensor does not work or takes off the line, other sensor of on - the - spot equipment will serve as the commander or the controller. so the system does not be influenced with for some sensor ' s trouble. this is the best advantage of control system based on fieldbus
由原集散控制系統（ dcs ）升級為fcs系統，本文所討論的系統有壓力、溫度、電流、電壓、綜合控制等各種傳感器，當一個傳感器失靈或脫線后，其它有關傳感器會自動擔任指揮員或調度員，系統不會因為某一節點的故障而影響整個系統的運行，這是基於現場總線控制系統（ fcs ）的優勢。 -
It emphases the selection of secondary voltage of the step - down transformer, the control and protection of thyristor, the calculation of compensation capability and group capability, the technique of cross - zero switched on / off capacitors or reactor, the solution of avoiding possible resonance in switching on / off groups of capacitors or reactor and the measure of the best time to switch ( including the design of the computer survey and control system, instrument deliver system, delay operate and protect system ). although thyristor as a no - contact switch can avoid almost the problem of contact switch with contact, it can not solve the over - voltage, over - current and transient process itself as switching on / off capacitors or reactor. so we must develop a set of thyristor - switched control and protect system with great reliability so that it can realize of cross - zero switching on / off capacitors or reactor at any time
晶閘管具有過零、動作快速的特點，本研究以晶閘管為電容器和電抗器的分組投切開關，重點研究了協調變壓器二次電壓的選擇、晶閘管觸發控制及保護、動態補償容量及分組容量的計算確定、過零投切電容器和電抗器技術的實現、以及分組投切電容器和電抗器可能發生諧振的處理計算方法，給出實現最佳補償投切選擇方法（測控系統、儀表變送系統、操作和保護系統的設計步驟） ，研製了一套高可靠性晶閘管觸發控制及保護系統，實現對無功的靜止可調補償。 -
Repetitive control is used to reduce voltage distortion under abrupt load variation or nonlinear loads and attain good quality of the voltage waveform ; current loop is designed to quicken the dynamic response and strengthen the ability of the inverter control
重復控制可以抑制逆變電源在負載變化嚴重（空載加到滿載）或者非線性負載條件下的輸出電壓畸變，保證輸出波形的質量；電流環用以改善輸出波形的動態響應特性，提高逆變控制的能力。 -
This machine adopts a whole stainless steel packing, the temperature is a number to show automatically control, heat or reduce the heat to all have a signal beacon manifestation, the electric current electric voltage size switches on to all have a manifestation, automatically feeding powder can adjust soon, spread to move part is the bean that the my plant produce product machine appropriation decelerate machine, electrical engineering is the steel plate adjustable type, the machine bottom use of upscale run a round, easy to ambulation, cool off part is automatically circulating water device, the bottom establishes keep of big capacity water tank and heat part is heat preservation economy energy type, normal production can economy in electricity quantity of 30 %, in fact use electricity charges and burn coal basic hold even
本機採用全不銹鋼包裝，溫度是數顯自動控溫，加溫或降溫均有信號燈顯示，電流電壓大小開機均有顯示，自動喂粉可以調速，傳動部分是本廠生產的豆製品機械專用減速機，電機架是鋼板可調型，機器底部用的高檔跑輪，便於移動，冷卻部分是自動循環水裝置，底部設有大容量的儲水箱，加溫部分是保溫節能型，正常生產可節約用電量的30 % ，其實用電費和燒煤基本持平。 -
This machine adopts a cold plank packing, temperature means that the needle automatically control, heat or reduce the heat to all have a signal beacon manifestation, the electric current electric voltage size switches on to all have a manifestation and automatically feed powder is certainly and soon, spread to move part is the bean that the my plant produce to product the machine appropriation deceleration machine, the electrical engineering is the steel plate adjustable type, the machine bottom use of upscale run a round, easy to ambulation, heat part is a heat preservation economy energy type, normal production can economy in electricity quantity of 30 %, in fact use electricity charges and burn coal basic hold even
本機採用冷板包裝，溫度是指針自動控溫，加溫或降溫均有信號燈顯示，電流電壓大小開機均有顯示，自動喂粉是定速，傳動部分是本廠生產的豆製品機械專用減速機，電機架是鋼板可調型，機器底部用的高檔跑輪，便於移動，加溫部分是保溫節能型，正常生產可節約用電量的30 % ，其實用電費和燒煤基本持平。 -
Being the import unit of the distribution automation system, the transformer terminal unit namely ttu, samples ac input ( such as voltage, current and so on ) and state ( for example : switch state ) and executes remote control command ( open operation or close operation ), ttu supervise the action of transformer, so it guarantee the security of das ( distribution automation system ) this paper is mainly based on the study of transformer terminal unit based on msp430f449 scm, the work of this paper includes : first, introduces the design of the hardware system and the software system of ttu, the core mathematical principle, and then, discusses the implementation of the communication protocol : iec870 - 5 - 101 and i2 c in detail
配變監測終端ttu （ transformerterminalunit ）是配電自動化系統中的重要部分，在系統中完成採集模擬量（電壓、電流等）和狀態量（如開關狀態） ，以及執行遙控（開、合操作）操作等功能，實現對配電變壓器的實時監測，保障配電系統的可靠運行。本文主要研究了基於msp430f449單片機的配電監測終端的實現，較詳細地介紹了系統的硬體設計、軟體設計、核心演算法，介紹了通訊規約iec870 - 5 - 101和i ~ 2c的實現。 -
Being the core unit of the distribution automation system, the feeder terminal unit, namely ftu. samples ac input ( such as voltage, current and so on ) and state ( for example : switch state ) and executes remote control command ( break or close ). this paper is mainly based on the study of feeder terminal unit based on dsp
饋線自動化終端裝置（ feederterminalunit ）是饋線自動化系統中的核心部分，在系統中完成採集模擬量（電壓、電流等）和狀態量（如開關狀態） ，以及執行遙控（開、合操作）操作等功能。 -
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
本文提出了一種基於dsp （數字信號處理器tms320f240 ）的通用的三相間接變頻電源系統，利用分段同步調製法和混合查表法，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，經驅動放大後用于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。
分享友人