range of speed control 中文意思是什麼
range of speed control
解釋
速度上下范圍-
Depend on the comprehensive analysis and study of the structure, principle, and exterior characteristic of the motor, through the methods of system modeling and digital simulation analysis, two kind of control device that work for the low voltage ( lvdc ) and the high voltage ( hvdc ) in avigation are researched respectively. point to the control technique of close - loop speed stabilization at a limited adjustment speed range, we bring out the close - loop speed control method that using the rotor position sensor indirectly measure the speed of the motor
在全面分析了稀土永磁無刷直流電動機的結構特點、工作原理、運行方式以及外部特性的基礎上，通過系統建模和數字模擬分析，分別針對航空低壓直流（ lvdc ）和高壓直流（ hvdc ）兩種電動機構用永磁無刷電動機，在小范圍轉速連續調節下的閉環穩速控制技術進行了詳細理論研究，提出了利用轉子位置傳感器信號間接測量電機轉速進行電機轉速閉環穩速控制的策略。 -
The control system with such method is simulated and a inverter is made for speed control of single - phase motor. the method presented in this paper offers such advantages as easy implementation, large range of frequency and rapid dynamic response. furthermore, using this method, the single - phase motor with symmetrical or dissymmetrical windings can operate symmetrically
本文提出的變頻調速控制方法具有系統設計簡單易實現，調速范圍大，動態響應快等特點，而且在電機繞組對稱和不對稱兩種情況下均可實現變頻調速的對稱運行。 -
Finally, we can not use electric power but the engine of bus or subsidiary engine to drive air compressors of bus air conditions. because the change range of turnaround speed of engine is very wide, that brings difficulties in controlling the rate of flow of cold - producing medium. in the control of bus air - conditions, preventing evaporator from freezing to make the air - conditions work with high efficiency and controlling the temperature of railway carriage are the basic tasks in air - condition control
與一般的建築空調相比，汽車空調的工作環境惡劣，條件差，控制難度要增加很多，主要體現在以下幾個方面：一是車外熱負荷變化大，難以確定控制參數；二是要求空調負荷大，而且要控制空調使其降溫迅速：三，不便於用電力作為動力源，必須用汽車發動機或輔助發動機來帶動壓縮機，當採用汽車發動機作為動力源時，由於汽車的車速變化大，發動機轉速的變化可從600r min到4000r min ，壓縮機轉速與發動機轉速成正比，其轉速變化高達7倍，給空調系統製冷劑流量控制帶來困難。 -
Processing area : 15001250mm laser power80w ; mainly used for acrylics cutting, processing of wood graphs, leather cutting and engraving ; fast and powerful ; maximum moving speed : 1500mm s ; dsp industrial - strength usb high - speed control ; edited by cad or coreldraw ; laser top can be adapted in the range of 40mm ; resolving power : 0. 015mm
能度快。能力強最大移動速度1500mm s ， dsp工業級usb脫機高速控制cad coreldraw編輯直接出分辯率0 . 015mm ，激光頭上下40mm可調。 -
In this thesis, the characters of the high - speed maglev transportation safe speed protection system are introduced firstly in chapter one. subsequently, the realization of the speed curve watching function that is one of the core safety functions of the maglev train ' s operation control system is discussed carefully in chapter two. in chapter three the arithmetic of the maglev train ' s safe speed curves is discussed, including the safe braking speed upper limit curve, the safe braking speed lower limit curve, the safe speed upper limit curve and the range of the maglev train ' s safe operating speed
本文首先綜述了磁浮高速鐵路系統安全速度防護系統，第二章對運行控制系統的核心防護功能?速度曲線監控功能的實現作了詳細的論述，第三章則給出了速度曲線監控功能中磁浮列車安全速度防護曲線的演算法，包括磁浮列車安全制動上限速度防護曲線、磁浮列車安全制動下限速度防護曲線、磁浮列車安全速度防護上限曲線和高速磁浮列車安全運行速度的范圍。 -
In this paper, a high integrated and intelligent digital dsp - spm system is developed based on the nspm6800 spm manufactured by the beijing zhongke mechanical & electrical equipment co. at present, the pc of spm system is burdened with not only sending and receiving data, but also disposing of image, which hinders the enhancement of speed of the system. in addition, as the function of spm is expanding, including tappingmode afm, efm, mfm, scm, etc, one hand, it amplifies the range of the application of spm, on the other hand it also means that the task of autocontrol and data transfer heavier. the advantages offered by the dsp compared to analog systems include considerable flexibility in the choice of the signal processing algorithm and greater ease in managing control parameters by the host computer, which are very important for the improvement of spm
本課題以北京市中科機電設備公司的nspm - 6800型掃描探針顯微鏡為基礎，重新設計了以dsp為控制核心的控制系統，主要解決原系統存在的以下問題： （ 1 ） pc機既要實時控制數據的採集與發送，又要進行圖像的后處理，整個系統的實時性難以達到要求； （ 2 ）隨著spm功能的擴展，一方面包括輕敲式原子力顯微鏡、電場力、磁場力、掃描容場顯微鏡等技術在內的spm技術擴展了儀器的測試范圍和功能，另一方面也意味著自動控制量的增加和數據處理量的增加； （ 3 ） 16位a d 、 d a都採用的是購買的板卡，也通過isa槽插在pc機內，成本高，不利於擴展； （ 4 ）另外，數字板通過isa槽插在pc機內，易受于擾，而且給安裝帶來不便。 -
This d format can show the range of the data intuitively and express the real time data, which improves the speed and precision of svpwm arithmetic greatly. the ratio of carrier wave is increased and the blend of current is reduced, as a result the performance of the system is ameliorated. this thesis project has finished the debugging of the ac motor control system, and the result shows that hardware and software of the designed system is in reason
在實現svpwm演算法的匯編程序中採用了一種新型的d定標法對標幺化的數值進行定標，這種d定標法能直觀的表示數值的大小范圍，可以實時的對數值進行定標，提高了svpwm演算法執行的精度和速度，增加了逆變器的載波比，減少了電流諧波，因而改善了交流變頻調速系統的性能。 -
It is indicated that, when a two - speed motor is used for driving oil transfer pump, the motor with the characteristic of torque reduction on square rotary speed should be chosen ; the working economy of the variable speed pump is restricted by the characteristic curves of pipeline resistance, and its speed control range is restricted by the pipeline resistance characteristic curve, the pressure head needed by the system and the working characteristic of the pump ; when several pumps work in parallel, the pump with better performance should be changed into speed - variable pump
指出雙速電動機用於輸油泵的調速時，應選用轉矩按轉速平方降低特性的電動機；調速泵的運行經濟性受到管路阻力特性曲線的限制，其調速范圍受到管路阻力特性曲線、系統所需揚程和泵運行特性的限制；在母管制系統中把部分定速泵改為調速泵時，應將性能較高的定速泵改為調速泵。 -
Dc - g460b laser engraving machine for handicrafts mainly used for making all kinds of handicrafts, e. g. the engraving of crystal, stones, etc., all kinds of medals and cups, wood combs, and packing boxes of handicrsft gifts. processing area : 400600mm ; electricpowered elevator platform adapted in the range of 20mm maximum moving speed : 1500mm s ; dsp industrial - strength usb high - speed control ; resolving power : 0. 015mm
如：水晶玉石等，雕刻各種獎碑獎牌的雕刻，人像木書雕刻工藝禮品包裝盒雕刻，加工面積400600mm電動升降平臺上下200mm可調，同時激光頭上下20mm可調，最大移動速度1500mm s ， dsp工業及高速控制分辯率0 . 015mm -
At the same time, we mainly design the hardware and the software of the two control systems. the high quality singlechip of at89c2051 and at89c51 are used as the main microprocessor of the control system. using digital method achieved the speed adjustment and the close - loop speed control which ensure the accuracy of speed adjustment and the speed stability at a def inite speed range
同時就兩套無刷直流電動機控制器的硬體電路和軟體程序問題進行了重點工程設計，採用了高性能的at89c2051和at89c51單片機作為微處理器，用數字軟體技術對電機進行調速和轉速閉環控制，使電機在一定范圍內能夠進行精確調速和速度穩定控制。 -
Processing area 25001250mm, laser power200w, maximum moving speed 800mm s, it is specialy used by color printing factories, printing factories, cutting plates ensuring fast speed. save time, save labor. dsp industrial - strength control usb card ; directly reading documents by cad or coreldraw. resolving power : 0. 025mm adaptable laser top can be adapted in the range of 50mm ; laser pipe automatically supplied with co2, economical and liable
該機加工面積25001250mm激光功率200w ，最大移動速度800mm s ，專業用彩印廠印刷廠刀模板切割速度快省時省力dsp工業級控制usb脫機卡直讀cad coreldraw文件分辯率0 . 025激光頭上下50mm可調，激光管可自行沖補co -
In order to research sinusoidal - and trapezoidal - current compound driven technology, the controller uses variable structure control ( vss ), by designing switch function s ( x ), which switches motor between sinusoidal - and trapezoidal - current driven technology, and thus realizes motor ' s excellent control in different range of speed. also we do software simulation using matlab
為了研究方波驅動和正弦波驅動的復合控制，控制器採用變結構控制，通過設計切換函數，使電機在正弦波驅動和方波驅動兩種控制模式下切換，實現不同速度段的優良控制特性，並用matlab軟體對整個復合驅動系統進行了模擬實驗。 -
New f24x / c24x series dsp is designed by ti inc. to meet a wide range of digital motor control ( dmc ) application. it not only hab high speed as normal dsp, but also has the control function for three - phase ac adjusting - speed system
而高性能的交流調速系統，都離不開數字信號處理器，新型的f24x c24x系列dsp是ti公司為滿足大范圍的數字電機控制（ dmc ）應用而設計的，它既具有通用dsp的快速性，又兼有三相交流調速的控制功能。 -
Bank - to - turn ( btt ) control technology is a new missile ' s control technology. it has very important theoretical and practical value on the developing of missile system, which has the long - range, high - speed, high - precision and high - maneuver capability
傾斜轉彎（ btt ）控制技術是一種全新的導彈控制技術，對發展遠程、高速、高精度與高機動的導彈武器系統具有重要的理論和應用價值。 -
The system reached control goal by experimental verification and the experimental results showed the system could produce ac excitation voltage with low harmonic, quick adjusting speed, wide adjusting range and high control precision of frequency
整個系統通過全面的實驗驗證，實驗結果充分說明所設計的系統產生出低諧波、調節速度快、調節范圍寬和頻率控制精度高的交流勵磁電壓，達到了預期的目標。 -
It can realize the wide range control of speed and position and has excellent capabilities
它能實現寬范圍的速度和位置控制並具有優良的性能。 -
The researches of this thesis are carried out around the study and development of adjustable speed digital drive system of permanent magnet synchronous motor ( pmsm ) with wide range of variable speed and high performance, including the analysis of the system structure, the intelligent control method and the design of the system
本論文的主要工作圍繞研製高性能、寬調速永磁同步電動機的全數字交流控制系統為工程背景展開，對控制系統的體系結構、提高控制系統精度與性能的控制方法、以及軟硬體設計等問題進行了研究。 -
The main goal of the subject requires the tension and speed control in the tolerance range during the web winding process
而本文的主要目標，就是將織帶在卷取過程中的張力及速度控制在所要求的限度內。 -
In general, fpga is mostly used in high - speed communications systems or high - speed signal processing systems because of its high - speedly and parallel architecture. however, in this thesis, it was applied to a low - speed and low power consumption system - a underwater long - range remote control reception system to realize decoding of remote control instructions in the frequency domain, and made the satisfactory result
一般來講， fpga多用於高速通信和高速信號處理領域，以發揮其處理速度快的特點，本文將其應用於一低速低功耗系統? ?某水下遠程遙控接收系統，主要用其在頻域來實現水下遠程遙控的解碼，取得了令人滿意的效果。 -
Analyses the related problems in application of variable frequency pumps, including the characteristics of variable frequency pump, the control range of minimum rotational speed, the energy saving effect of different control strategies and the control of parallel connection work of variable frequency pump and constant speed pump
摘要分析了變頻調速水泵應用中的相關問題，包括變頻泵的特性、最小轉速的控制范圍、不同控制方式的節能效果、變頻泵與定速泵並聯運行時的控制等。
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