electric machine method 中文意思是什麼
electric machine method
解釋
電磁法-
The thesis is devoted to exploiting a permanent magnet synchronous machine ( pmsm ) for the parallel hybrid electric vehicle ( phev ). three parts are included as follows : at first, in the electromotor state, the current control strategies of pmsm are determined. giving the elementary method for solving the contradiction between enhancing the pmsm ' s flux - weakening capability in the electromotor state and reducing the pmsm ' s connatural adjustment ratio in the dynamotor state
本課題的研究工作主要圍繞開發一臺並聯式混合動力電動汽車（ phev ）用永磁同步電機（ pmsm ）展開，所作的工作主要包括以下幾個部分：首先，確立了phev用pmsm電動機運行狀態時的電流控制策略，針對pmsm在電動機運行狀態時提高弱磁擴速能力和在發電機運行狀態時減小固有電壓調整率的相互矛盾，提出了初步的解決方法。 -
Hydraulic control system of double - cylinder vessel gate is a sort of typical electrohydraulic proportional control system0 in order to study electrohydraulic flux control characteristics of this system, i have analyzed the principle of this hydraulic control system, and made its mathematics model ? in double - cylinder hydraulic system, it is necessary to process electric synchronous control in this hydraulic system, this paper also introduces a sort of fnn ameliorated from the point of view of intelligent control theory, and clarifies the principle of applying that network to achieve synchronous controlo at the same time, the means of fuzzy configuration analysis is used for network training, the comparative experiments make known that the method of applying fnn to realize synchronization control is feasible, furthermore, its effect is better than others0 this paper puts forward that a distributed control system can be used to monitor and control vessel gate within a real - time or remote distance, the basic project, structure, applications and functions of computerized scada system in hydraulic system of vessel gate is introduced ? a double layer network structure, epigynous and hypogynous machine network, is applied to this system, in accord with the application of technique such as plc, integrated software etc, this paper introduces the methods and application to achieve the computerized scada system in the task, and analyzes the characteristic of this system, in this paper, the application of configuration in monitor and control system of vessel gate is discussedo in addition, in accord with the application of technique such as visual basicb
雙缸船閘液壓啟閉控制系統要求解決同步控制問題，文中從智能控制理論角度出發，採用了一種改進的模糊神經網路，結合模糊聚類分析方法，闡述了應用該網路實現同步控制的原理。通過對比模擬實驗表明：應用模糊補經網路實現同步控制是可行的，而且它的同步控制效果要優于傳統的設置主從令缸控制方法，具有良好的魯棒性能。另外，本文提出了建立船閘控制系統的分散式控制系統，介紹了船閘液壓控制系統的計算機監控系統（ scada ）的方案、結構、應用和主要功能，採用雙層網路化結構：上位機網路和下位機網路，並結合plc通信網路技術和組態軟體等技術構成的計算機監控系統的實現方法，實際應用，分析了這種較新的系統模式在船閘液壓控制系統的計算機監控系統的功能實現中所具有的特點。 -
Series full - auto pipe expander with drawing device and program interface is used with extruding machine. it is also used solitarily, while expanding pipes, the machine adopts translation, the action is steady and corret, it does not damage pipe materical, the machine adoptes double - infrared heating oven type, each oven is equipped with heating cire, the shaping method adopts expanding - end shaping, the size of pipe mouth is correct. on its panel, there is a transfer swith of expanding solvent type pipe socket ( straigh port ) and expanding sealloop type pipe socket ( rport ). the choice of expanding pipe type is very convenient, the technologocal adaptability is strong, its main electric control elements are all imported. the syetem charecteristics are steady and reliable
配有與主機配套的接料牽引裝置和相應的程序介面，既能與擠管主機聯線使用，又可以作單機使用；擴管時管材的移動均採用平移方式，動作平穩準確而且不易損傷管材；這種機型採用紅外線加熱方式且為雙加熱爐型，每個加熱爐都配有中心加熱爐芯；成型方式均採用擴管頭定型方式，管口成型尺寸準確；該機型在控制面板上設有擴溶劑型承介面（直口）和擴彈性密封圈型承介面（ r口）的轉換開關，擴管方式選擇十分方便，工藝適應性強；主要的電器控制元件均採用進口元件，系統性能穩定可靠。 -
In recent years, electric - discharge machining, including spark erosion with traveling wire electrodes, has become a very important method of machine operations for heat treated steel without sulfur
近年來，放電加工，包括線切割加工己成為無硫鋼經熱處理后的一種很重要的加工方法 -
The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either
在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。 -
The design adopts ac sample method to get 3 - phase voltage and current samples. the design computes three basic electric parameters according the sample values and monitors the voltage and current of pumping machine with keyboard and lcd
對抽油機工作電壓、電流進行數據採集，用方均根值法由交流采樣值計算三個基本電參數，並通過lcd和鍵盤進行隨時的監測。 -
Importance and means of signal measurement and processing in control of three main electric and mechanical equipment for walking beam heating furnace are discussed, the discussion includes time filtering processing of digital signal, measuring signal processing and measurement fault judging of translation stroke in charging machine and discharging machine, translation stroke measurement of walking beam and measuring method of slab output quantity
摘要論述了步進梁加熱爐的三個主要電氣機械設備控制中信號檢測和處理的重要性及方法，包括四個方面：數字信號的時間濾波處理，裝鋼機、出鋼機的平移行程檢測信號處理和測量故障判斷，步進梁的平移行程檢測，板坯流出量的檢測方法。 -
Based on investigating and technical testing, this paper researches the electric upsetting process comprehensively, puts forward a over - all parameters control system, a intelligent upsetting project, a " spherically upsetting method " and a detecting pressure ? ontrolling temperature method innovatively. it is the first time to use the intelligent control theory in electric upsetting, put forward a defect removing experts system and temperature control fuzzy experts system, as following : 1. method of reconstructing intelligent upsetting machine from a traditional one, changing the parameters to controllable
本文在理論分析、調研和工藝實驗的基礎上深入研究電熱鐓粗工藝，提出了電熱鐓粗工藝全參數控制系統、智能型電鐓機的硬體框架，提出了具有創新性的「球形鐓粗法」及檢測變形阻力? ?控制變形溫度的方法，並首次把智能控制技術運用於電熱鐓粗工藝，提出了電熱鐓粗產品缺陷消除專家系統和溫度控制模糊專家系統。 -
Soft starters decline only the electric voltage and do not decline the frequency, and make the starting torque turn small, therefore the soft starters be applicable only to the induction motors which drive the low starting torque machine such as blower fan and pump. this paper designed a soft starter adopting the discrete frequency method to start induction motors. it declines not only the electric voltage, but also makes the frequency lower at the same time, so starting torque turns more
由於軟起動器只降壓不降頻，電機的起動轉矩較小，所以傳統軟起動器只適用於風機、水泵類低起動轉矩的負載。本文設計並研製了一種採用分級變頻方法的新型軟起動控制器，在降壓的同時實現有級變頻，從而提高了異步電動機的起動轉矩。 -
The electric quantity and non - electric quantity are measured in an intelligent testing system in which 8031 single - chip microcomputer is lower machine and pc is upper machine based on the above measuring method
在以上智能檢測技術的基礎上，將各種電量和非電量集中在一個檢測系統中，以8031單片機為下位機， pc機為上位機進行檢測。 -
After the investigation and study of this extruded concrete curb solution overseas, shaanxi provincial bureau of water & electric engineering ( group ) co., ltd. ( spb ) devoted to the research of this new construction method, invented bjy - 40 extrusion curb placing machine, made comprehensive experiments on heihe dam site, and got valuable results, adopted this method in gongboxia hpp main dam construction
在對國外邊墻施工法進行細致調研后，從2001年開始，陜工局率先對這一技術進行研究，研製了bjy - 40型邊墻擠壓機，在黑河工地進行了現場擠壓混凝土邊墻和墊層料鋪填碾壓的綜合試驗，取得了具有參考價值的第一手資料，並在公伯峽水電站面板壩工程中創新採用了這一技術。 -
Abstract : taking lst mine of ping dingshan mining bureau as an example, the paper judges the security of electric locomotive transportation system comprehensively with the fuzzy method. it finds out some existing problems in man, machine, environment which affects system security. on the basis of it, some corresponding countermeasures to improve the security of electric locomotive transportation system are put forward
文摘:以平頂山煤業集團公司一礦為例，運用模糊數學的方法，對電機車運輸系統的安全性進行了模糊綜合評判，指出了影響安全的人、機、環境各因素中存在的問題，並提出了相應的提高安全性的措施。
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