unbalance vector 中文意思是什麼
unbalance vector
解釋
不平衡矢量-
Win600 automobile lift has the same control system as freight lift, i. e. micromputer control or plc control, and the same tracyion system as freight lift, i. e. vvvf vector control, to make it safe, reliable, stable, comfortable, energy - saving and of high leveling precision as freight lift. the car is equipped with four or six symmetric guide rails, to solve the problem of wobbling caused by the unbalance load of car and reduce the noise of operation, the door is equipped with reliabe optical screen protction or infrared electronic protecyion, to ensure the safe entry and exit of automobile. the double - controller design inside the car gives convenience to the operation of automobile driver
Win600系列汽車電梯的控制系統與載貨電梯一樣採用微機或plc控制，拖動系統樣採用vvvf矢量控制，因此，同樣具有安全可靠平穩舒適節能環抱平層精度高的特點。轎廂採用對稱的4根活6根導軌導向，解決了轎廂裝載不平衡引起晃動的問題，降低了運行的噪音。轎門裝有高可靠的光幕保護活紅外線電眼保護，保證汽車安全的進出。 -
Unbalance vector measuring device
不平衡矢量測量裝置 -
Firstly, this paper introduces the asynchronous motor model, and compares it with the dc motor ’ s. then the paper studies the principle of vector control, and proposes an improved current model of rotor flux observer. this paper also studies the three - level inverter ’ s topology, working principle, the neutral - potential unbalance mechanism and its controlling strategy. the paper especially studies the svpwm in details. the interface between the vector control and the three - level inverter is studied in details, including the generation of reference voltage vector, its judging of the sector and triangular regions, and the working mechanism after it sent into three - level inverter. when synthesizing the reference voltage vector, select the vector which only includes p and o states as the starting vector, thus eliminate the vector shift problem when sector changes. this paper fully takes advantages of the powerful functions of matlab / simulink to set up the simulation model. this construction is very explicit. the simulation results verify the inverter voltage output is correct, the rotor flux is steady, the asynchronous motor ’ s dynamic and steady state performances and speed modulation are excellent
本文首先介紹了異步電機的數學模型，在此基礎上將異步電機的數學模型與直流電機的數學模型進行了比較;然後介紹了矢量控制的基本原理，採用了一種改進的轉子磁鏈電流型觀測模型;對三電平逆變器的電路拓撲、工作原理、中點電位不平衡的機理及控制方法進行了介紹，詳細分析了空間矢量脈寬調制策略。本文對異步電機的矢量控制與三電平逆變器之間的介面進行了詳細的研究，包括:參考電壓矢量的形成、所落扇區與具體小三角形區域的判斷、送入逆變器之後的工作機理。在參考電壓矢量的合成時，選擇只包含p 、 o狀態的空間電壓矢量作為起始矢量，解決了扇區切換時的矢量突變問題。
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