電機數量 的英文怎麼說
中文拼音 [diànjīshǔliáng]
電機數量
英文
number of motors- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 機 : machineengine
- 數 : 數副詞(屢次) frequently; repeatedly
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 電機 : (任何產生和應用電能的機器 特指發電機、電動機) any power generating or power driven machine esp ...
- 數量 : quantity; quantum; amount; magnitude; number
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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。That the earth has an iron - rich liquid core, sufficient energy to drive convection and a coriolis force to twist the convecting fluid are primary reasons why the geodynamo has sustained itself for billions of years
地球擁有富含鐵的液態核心、有足夠的能量驅動對流,並具有科氏力可使對流的流體扭轉,這些是地球發電機之所以能自我維持數十億年的主要原因。The most important feather in this design is that the number of motors have controlled only in two and de - scend the motors on the base. ( one motor used for turn motion of the base, whereby maked the manipulator motion in throughout space. another motor used to drive the manus ) excepted for adopped synchronization bell which have light weight and accu - rate gear ratio to reliefed relatively the weight of manipulator ' s device
在本設計中除了採用材質輕而又傳動比準確的同步帶傳動可以相對減輕手臂傳動機構的重量之外,最主要的特點足將電機數量控制在兩臺(一臺用於底座的回轉運動,從而實現機械手在整個空間的運動;另一臺用於驅動手臂的運動)並將電機下置於底座。Not exceeding the number of servos rated for your specific bec
使用舵機數量超過了電調的容量。Fire protection, and surveillabce works as follows : electrical : 22. 8kv ; 27, 800kva ; three loading centers located in the power house, factory, and office building ; generator 2 800kw
電氣: 22 . 8kv供電設備容量三處負載及配電中心分佈於動力室與廠房發電機容量2800kw ,供緊急負載使用本配電系統處使用數字式電驛及電表,符臺現代化之電力監控新潮流。Firstly, according to the detailed analysis on the mathematical model of pmsm, the principle of field oriented control ( foc ) is illustrated. spwm and svpwm are analyzed and contrasted in detail too, and the digital realization techniques based on dsp are given
本文首先在分析永磁同步電機數學模型的基礎上,闡述了永磁同步電機矢量控制基本原理;對正弦波調制技術( spwm )和空間矢量調制技術( svpwm )兩種脈寬調制策略進行了詳細的分析和對比研究,給出了基於dsp的數字化實現方法。High efficiency and energy saving rare earth permanent magnet synchronous motor ( repmsm ) are importance approach to the problem that the cost of oil extraction in chinese oil fields is too high and pulling small car with big horse at large in driving electromotor in pumping unit
我國油田採油成本高,油田抽油機電機數量多、容量大、年運行時間長、耗電量大,採油成本的60是電費。國內外對抽油機電機的節能都很重視,稀土永磁同步電動機具有高效節能的特點,是解決這一問題的重要途徑。The contributions done are as follows : according to the mathematical model of doubly fed motor and the theory of vector control, a unit power factor of rotor control scheme is proposed. in the doubly fed adjustment system, in order to control magnetic torque of motor this scheme is designed by controlling the reverse direction between rotor voltage and current to keep the vertical direction between rotor current and flux. it is known from theoretical analysis that for partly decoupling this scheme is only effective under sub - synchronization speed, but not control the system and obtain steady state since speed adjustment system ca n ' t adjust the magnitude of rotor flux under sup - synchronization
而傳統的無速度傳感器雙饋調速矢量控制系統,由於採用磁鏈定向方法,在同步速附近存在較大的工作死區,針對上述問題,本文做了如下的研究工作:本文從雙饋電機的數學模型出發,根據矢量控制的基本原理,提出了一種轉子側功率因數為1的雙饋電機矢量控制方案的設想,即在雙饋調速時採用轉子電流定向的方法,並控制外加轉子電壓與轉子電流始終反相,以保持了轉子電流與轉子磁鏈矢量垂直,通過控制轉子電流的大小來達到控制電機電磁轉矩的要求。In rotor flux orientation control, rotor time constant t2 is a key issue of high performance vector control technology
在轉子磁場定向異步電機矢量控制系統中,正確的轉子時間常數是高性能矢量控制系統的關鍵。Based on the mathematical model of induction motor, this paper discusses the rotor - field - orientated control principium and the space vector pulse width modulation principle. subsequently the software design of svpwm is put forward
本文在分析感應電機數學模型的基礎上,詳細討論了轉子磁場定向矢量控制理論和空間矢量脈寬調制技術原理,提出了svpwm的軟體實現方法。In this paper, the theory of vector - control and corresponding mathematical model are addressed in great details. the strategy of rotor - flux - oriented vector control for acim is given
本文首先在深入研究了矢量控制理論和交流感應電機矢量控制系統的數學模型的基礎上建立了矢量控制的基本方程。Based on the state space equations of acim, a simulation model of the control system of acim is designed by using matlab / simulink. the results of experimentation and simulation indicate that the method of rotor flux oriented vector - control for ac the induction motor is of good dynamic and stability performance. at the end of paper, the conclusion and further research expectation are presented
為提高系統輸入端的功率因數,減少注入電網的諧波,本文根據矢量控制的原理設計了基於功率因數控制的交流感應電機矢量控制的dsp試驗系統;並以感應電機狀態空間方程為基礎設計了在matlab / simulink環境下的感應電機模擬控制系統模擬模型。After the field - oriented control of three - phase pmsm drive system is introduce in brief, a mathematical model of multiphase pmsm, taking a six - phase pmsm with a dual - star winding for example, is derived by coordinates transformation and the control picture is designed
本文以雙y移30六相永磁同步電機為例,在簡要介紹三相永磁同步電機矢量控制的基礎上,通過坐標變換建立了多相永磁同步電機矢量控制的數學模型,並構建了控制圖。This discourse analyse the development and condition of compute - aid quality inspection system in civil and oversea, discuss the feasibility and necessity of air - condition electromotor ' s quality inspection system. making the methods of air - condition electromotor enterprise ' s quality inspection to be standard, and enhance the level and efficiency of electromotor enterprise ' s quality inspection. the major works of this theme have several aspects : 1
本論文首先分析了計算機輔助質量信息系統在國內外的發展與現狀,並介紹了計算機輔助質量檢驗系統開發的基礎知識;其次對空調電機企業質量檢驗進行了需求分析,論述了空調電機質量檢驗系統開發的可行性和必要性;最後著重研究開發了以計算機和數據庫技術為基礎的空調電機計算機輔助質量檢驗系統。The physical environment includes the number and location of computers involved in replication and whether these computers are clients workstations, laptops, or handheld devices or servers
實際環境包括復制中所涉及的計算機數量和位置,以及這些計算機是客戶端(工作站、便攜式電腦或手持設備)還是服務器。Deeply study the theory of vector control on pmsm and build the mathematical model of pmsm. based on the model, the sensorless pmsm vector control speed adjustment is discussed. the control block diagram is provided
論文深入研究了永磁同步電機的矢量控制理論,建立了永磁同步電機數學模型,並在此基礎上討論了永磁同步電機無位置傳感器矢量控制調速方案,給出系統控制框圖。Furthermore, under the vector control strategy of stator field - orient, a vector control model will derive from the generator, which form a close control system with the generator model
本文利用定子磁鏈定向的矢量控制方法,將同步坐標系下的雙饋電機數學模型簡化后得到矢量控制系統的模型;矢量控制模型與雙饋電機模型一起構成閉環控制系統。But dtc is a kind of the more advantageous control technology that places stress on controlling the torque of the motor directly, which overcomes the disadvantages of vc and brings the second natural fly - by of the speed regulation control theory of ac motor
直接轉矩控制是一種更先進的控制技術,它不需要解耦電機數學模型,強調對電機的轉矩進行直接控制,在很大程度上克服了矢量控制的缺點,成為交流電機調速控制理論第二次質的飛躍。Based on analyzing the math model and running character of motor, this paper educes a method of estimating the real torque of motor by a way of energy conversion. by measuring the stator ' s current, voltage and the power factor of the motor, we can calculate the input power of the motor, and then we can get the electromagnetism power and the real electromagnetism torque
本文在分析了電機的數學模型和電機運行特點的基礎上,通過測量電動機定子相電壓和定子相電流以及功率因數角的方法,得出電動機的輸入功率,並從電機能量轉換的基礎上,得到電機的電磁功率,由此得到電機的實際電磁轉矩。Abstract : this artiele explores the main development direction of measuring tool products in our country adopting modern new techniques such a s electronic digital display and computer - aided measurement to develop capacitan ce - grate type electronic digital display measuring toois and realize the miniatu rization and intllectualizaton of the machinery - electronic integrated products
文摘:探討了我國量具產品的主要拓展方向是採用電子數量、計算機輔助測量等現代新技術拓展容柵式電子數顯量具,實現產品機電一體的小型化和智能化。分享友人