voltage-regulating system 中文意思是什麼
voltage-regulating system
解釋
調壓系統-
Analyze item by item the position of unintact cycle, the running clearance of unintact cycle, locking - deform, datum dimension regulating, repeatly install, power voltage wave and marking running etc. at the same time, we give the calculating formula to calculating the running marking random error, and use it to calculate the system error of big diameter measure instrument - - datum dimension frame error, gyro - wheel diameter error, error caused by circumstance temperature, error caused by backing distance, angle error, delay error of data collecting circuit, lathe main shaft running error, workpiece install partial error
對不完整圓的位置、不完整圓的轉動間隙、鎖緊變形、基準尺調整、重復安裝、電源電壓波動、標記轉動等隨機誤差進行了逐項分析，並給出轉動標記隨機誤差的計算公式。對大直徑測量儀的系統誤差?基準尺尺架誤差、滾輪直徑誤差、環境溫度引起的誤差、後退距離引起的誤差、角度誤差、數據採集電路延時誤差、車床主軸回轉誤差、工件安裝偏心誤差分別進行了計算，最後對誤差進行合成。 -
Design of soft - start control system for pumps and analysis of energy - saving by voltage regulating in light load
水泵群軟啟動控制系統設計及輕載調壓節能分析 -
There is difference frequency measurement requirement for every part of pid regulating, difference between dynamic quality and static quality in response time and accuracy. according to these, it use the interrupt functions and high - speed counter of the simens s7 - 200 plc cpu226 basic unit and some peripheral circuit to measure frequency ; in software designed, the procedure frame of hydraulic - turbine governor and disperse process of parallel pid are analyzed, an improved pid algorithm is adopted to realize a pid regulation mode with variable structure and parameters ; the mechanical liquid - pressure system of the hydraulic - turbine governor is with electric - hydraulic converter unit of step motor. according to the drive character of five phase of response step motor, a variable frequency regulated voltage driver unit is designed in order to realize interface between plc and driver of step motor
本文利用s7 - 200plc自身的特點設計了頻率測量單元，根據pid調節各個環節的特點，以及調速器動態特性、靜態特性對頻率測量的實時性和精度要求的不同，利用s7 - 200plc基本單元中內置的高速計數器以及相應的外圍放大整形、分頻電路，實現了水輪發電機組頻率的測量；在軟體上，對微機調速器的整個程序框架、並聯pid的離散化過程進行了分析，選用改進的pid演算法實現了變參數、變結構的pid調節模式；調速器的機械液壓隨動系統具有步進電機電液轉換元件，採用五相反應式步進電機，根據其驅動特性設計了變頻調壓驅動器，實現plc與步進電機驅動器之間數字介面。 -
Section iii proposes a possible organization of a reactive power market, a regional reactive power market established according to the distribution of the load and the reactive supply. the regional reactive power market is composed of a reactive energy market based on marginal pricing and a reactive capacity market based on a reactive regulating capacity payment. the cases in section iv, based on the market organization proposals and the reactive bid structure previously presented, performed on a five - bus system and the ieee 14 bus system, are used to analysis the effects of active bid, voltage control and power factor on the reactive marginal price
本文首先回顧了電力市場發展的歷史和現狀；然後對市場中的定價方法和無功輔助服務的內容及特點進行了總結，並介紹了一些國家的無功輔助服務市場模式和交易方法；接著立足我國國情，提出了單邊開放電力市場下的無功市場框架：即根據負荷和無功源的分佈特點建立區域無功市場，各區域無功市場又由相應的無功電量市場和無功容量市場組成；並提出了該無功市場模式下的機組報價模型和基於報價的以系統總購電費用最小為目標的無功電價計算方法；最後用一個5節點系統和ieee14節點系統進行了實例分析，初步研究了發電機有功報價、系統電壓控制以及負荷功率因數對無功電價的影響，得出了一些有借鑒意義的結論。 -
We discussed the four - legged inverter with space vector modulation ( svm ) to aim at three - phase four - line output ; we introduced the principle of three dimensions svm, and attained the related control scheme. with the illustration of 15kva vscf power inverter, we tested and verified that the inverter system under 3d svm control can realize the three phase four line output and linear voltage regulating
針對三相四線輸出的電源系統，對採用空間矢量控制的四橋臂逆變器進行了深入研究，對三維空間矢量調制方案進行了分析求解、模擬，並給出了適用於15kva變速恆頻電源變換器的解決方案，實現了變換器的三相四線輸出以及線性調壓。 -
This paper expatiated that the mathematics models of ac motor is higher order, non - linear and closed coupling, multivariable input - output system. and introduces the principle and the algorithm of sine pulse width modulation ( spwm ), opened - loop space voltage pulse width modulation control ( svpwm ) and field oriented control ( foc ). finally, realized the control strategies of variable - frequency speed regulating using assembly and c language
文中闡述了交流異步電機的數學模型是高階、非線性、強耦合的多變量輸入輸出系統，介紹了交流電機的正弦脈寬調制、開環電壓空間矢量的u / f控制和磁場定向控制的原理及控制演算法，並利用dsp構成控制系統，通過匯編語言和16位定點c語言混合編程的方法實現了上述的變頻調速控制策略。 -
Energy saving of a water injection system can be achieved by regulating the speed of the electromotor through changing the input voltage of the motor ' s stator
摘要電動機調端電壓調速是通過改變電動機定子端電壓來實現調速的方法。 -
The third, the paper analyses and expatiates three mode of speed regulating which are speed negative feedback, voltage negative feedback and voltage negative feedback plus cuttent positive feedback and designs a speed regulating control system adopting the mode of voltage negative feedback plus cuttent positive feedback. at the same time we optimize the speed regulating system using the appraisal software of the performance of wire feeder
再次，從控制論的角度對轉速負反饋、電壓負反饋、電壓負反饋配合電流正反饋等三種轉速調節方式進行了分析論述，採用電樞電壓負反饋配合電流正反饋方式設計了送絲機調速控制系統，並採用送絲機性能評估軟體對調速系統進行了優化。 -
To reduce the high starting current as asynchronous motors start up directly and eliminate the negative influence that brought about by switching of contact when it starts up with reduced - voltage means, two new methods based on power electronics technology for improving the starting characteristics of three - phase induction motor are presented. one is alternative voltage regulator, the other is alternative voltage chopper. the three - phase regulating circuit - asynchronous motors system and the three phase chopper circuit - asynchronous motors system are analyzed and simulated with matlab
為解決上述問題，本文提出一種基於斬波方式的三相交流異步電動機的軟起動新方法，論文對電路的起動特性、功率因數、諧波以及控制策略進行了研究，模擬結果表明這種基於斬波方式的三相交流異步電動機的軟起動方法比基於三相交流調壓的三相交流異步電動機的軟起動方法具優越性。 -
An improved voltage adjusting model with scr is used in this control system. by regulating the amplitude of ac motor ' s voltage, it implements voltage - slope start, current - limit start, soft - stop
本控制系統採用晶閘管調壓方式，採用模塊式設計思想，用定子調壓方式實現了電動機的電壓斜坡起動、限流起動、軟停車等功能。
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