【正文】
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When? 2 ——? 1 ? 0177。但是,進(jìn)入九十年代,隨著科學(xué)技術(shù)的發(fā)展和計(jì)算機(jī)技術(shù)的廣泛應(yīng)用,人們對(duì)電梯的安全性、可靠性的要求越來(lái)越高,繼電器控制的弱點(diǎn)就越來(lái)越明顯。電梯作為高層建筑中垂直運(yùn)行的交通工具已與人們的日常生活密不可分。在這里,一種辦法是,提供獨(dú)立的轉(zhuǎn)矩控制的永磁同步電動(dòng)機(jī)使用單一的逆變器。例如, 在傳統(tǒng)的電梯門系統(tǒng),如果一個(gè)門 延遲 ,另一扇門必須停在同一位置 , 門是連接到剛度是 100000N/ m 單一的電纜 。 花 三相永磁同步(旋轉(zhuǎn))電機(jī) 的 模型 是 [ 5 ]。 根據(jù) dq參考系統(tǒng)的定義 : 磁軸 ? == 0d軸與轉(zhuǎn)子對(duì)齊 , ? == 0時(shí), 與 d軸對(duì)齊, 這反過(guò)來(lái)與 iS1axis相同 。 這里 x = 0為直線電機(jī)與轉(zhuǎn)子磁軸階段的一個(gè)被列為與 等效旋轉(zhuǎn)電機(jī) 和同樣的定子相 磁軸 。該 線性位置反饋從墻上 到 門控制系統(tǒng)精度 mm。具體來(lái)說(shuō),他們名義上遵循相同的軌跡, 設(shè)定 d1 = vd2, vq1 = vq2 , ? 1 = ? 2, ω 1 = ω 2, id1 = id2, iq。然而, A是 穩(wěn)定的。 等效旋轉(zhuǎn)電機(jī) 的 半徑 滿足 2preq = np2dp ? req = 。最后, imax, vmax表示 相電流和電壓的三相電機(jī) 的極限 , Imax,Vmax相 當(dāng) 于兩相電機(jī) 相應(yīng) 極限。這樣做,讓 x, ?表示 直線電機(jī) 的 位置和速度 , m 是指 直線電機(jī) 的質(zhì)量 , req表示 等效 旋轉(zhuǎn)電機(jī) 的 半徑 (即,直線電機(jī)的旅行距離的 2π req 每一個(gè)完整的革命旋轉(zhuǎn)電機(jī)), m 是直線電機(jī) 的質(zhì)量 , F,FL 表示 由 直線電機(jī)和負(fù)載力 在 電機(jī) 上 產(chǎn)生的力。這里的目標(biāo)是考慮 一個(gè)不同的系統(tǒng),有線電視系統(tǒng)和消除一個(gè)電梯門驅(qū)動(dòng)采用線性同步 電機(jī) 。標(biāo)準(zhǔn)的方法來(lái)控制永磁同步電機(jī)是使用一個(gè)單一的逆變器提供獨(dú)立控制的直接和正交電壓(和因此的直接和正交電流)的運(yùn)動(dòng)。因此, PLC 控制技術(shù)加變頻調(diào)速技術(shù)己成為現(xiàn)代電梯行業(yè)的一個(gè)熱點(diǎn)。該方法適用于控制電梯門控制。外文翻譯( 原 文) 1 Control of two PM linear motors with asingle inverter: application to elevator doors Abstract This work considers the control of two PM synchronous motors using a single inverter. The standard approach to the control of a PM synchronous motor is to use a single inverter which provides independent control of the direct and quadrature voltages (and therefore of the direct and quadrature currents) of the motor. Here, an approach is presented that provides independent torque control of two PM synchronous motors using a single inverter. In this approach, the quadrature current of each motor is controlled while it is shown that the direct current is uncontrollable. Both parallel and series connections of the two motors to the single inverter are considered and it is shown how the singularity of the controller can be avoided in each case. The methodology is applied to the control of elevator doors. 1. Introduction Composed by the order of relay control system is a realization of the first elevator control method. However, to enter the niies, with the development of science and technology and the widespread application of puter technology, the safety of elevators, reliability of the increasingly high demand on the relay control weaknesses are being evident. Elevator control system relays the failure rate high, greatly reduces the reliability and safety of elevators, and escalators stopped often to take with the staff about the inconvenience and fear. And the event rather than taking the lift or squat at the end of the lift will not only cause damage to mechanical ponents, but also personal accident may occur. Programmable Logic Controller (PLC) is the first order logic control in accordance with the needs of developed specifically for industrial environment applications to operate the electronic digital puting device. Given its advantages, 外文翻譯( 原 文) 2 at present, the relay control the lift has been gradually replaced by PLC control. At the same time, AC variable frequency motor speed control technology, the way the lift drag speed has been a gradual transition from DC to AC frequency converter. Thus, PLC control technology increases VVVF Elevator modern technology has bee a hot industry. With the continuous development of urban construction, the increasing highrise buildings, elevators and life in the national economy has a broad application. Elevator highrise buildings as a means of transport in the vertical run of daily life has been inextricably linked with people. In fact the lift is based on external call control signals, as well as the laws of their own, such as running, and the call is random, the lift is actually a manmachine interactive control system, simple to use control or logic control order can not meet the control requirements, and therefore , elevator control system uses a random control logic. Elevator control is currently generally used in two ways, first, the use of puter as a signal control unit, the pletion of the lift signal acquisition, operation and function of the set, to achieve the lift and set the automatic scheduling function to run the election, drag the control from inverter to plete。 人們認(rèn)為單逆變器的串并聯(lián)能夠避免在每種情況下的顯示控制的異常狀況 。 同時(shí),由于電機(jī)交流變頻調(diào)速技術(shù)的發(fā)展,電梯的拖動(dòng)方式己由原來(lái)直流調(diào)速逐漸過(guò)渡到了交流變頻調(diào)速。 本 文認(rèn)為 永磁同步電動(dòng)機(jī) 的控制 采用一 個(gè)單一的逆變器。使用位置傳感器反饋的墻, 門 的位置 是由電機(jī)控制 /逆變 器系統(tǒng),推 /拉電纜。 外文翻譯( 譯 文) 18 2. 永磁同步電動(dòng)機(jī)的建模與控制 永磁直線電機(jī)可以模擬為等效的三相永磁同步電機(jī)的旋轉(zhuǎn)( 永磁電機(jī) )。 逆變器 最大的電壓是當(dāng)它是運(yùn)行在六步模式和 六步 波形基本峰值 這 是 vmax =這 是 相電壓 的 最大極限。 相電流 范圍 Imax = 10A(峰值)和 電機(jī)所提出的 最大(線性)力是 320N。 可觀性矩陣 ? ?765432 CACACACACACACAC 有 4 級(jí) ,可控性矩陣 外文翻譯( 譯 文) 21 ? ?b765432 AbAbAbAbAbAAbb 有 5級(jí) 。使用一臺(tái)變頻器控制兩 臺(tái)永磁同步電動(dòng)機(jī)的一種方法是只控制兩個(gè) 相同 的電機(jī) 。該門最大速度 ?max = 1ms,最大加速度是 α max = ,和挺舉率是有限的 jmax = 。 相應(yīng)的等效兩相參數(shù)然后 L = LS + M = ,, RS = ? , Keq = 23 Km=, Imax(連續(xù)) = 23 imax =,Vmax= 23 vmax= 。在 dq坐標(biāo)狀態(tài)空間模型 是 該模型假定轉(zhuǎn)子 是光滑的 (隱 極 ) 和 磁場(chǎng)線 是線性的。 )s i n(n p11321 ??mssssss KiRvdtdiMdtdiMdtdiLs ????? )32s i n(n p22321 ??? ??????? mssssss KiRvdtdiMdtdiLsdtdiM )34s i n(n p33321 ??? ??????? mssssss KiRvdtdiLsdtdiMdtdiM Lsmsm τiKiKdtdJ )34s i n(niK)32s i n(n)s i n(n ps3mp2p1 ?????? ????? - ???dtd 這里 LS 是 一個(gè)定子繞組的自感, M 是 相與相之間的 互感系數(shù), Km是扭矩 /反電動(dòng)勢(shì)常數(shù)( 因此 KM = Km/req是 線性 電機(jī)的 力 /反電 動(dòng)勢(shì)常數(shù) ), RS是 定子繞組 電阻 , np是極對(duì)數(shù)(轉(zhuǎn)子齒數(shù)或步進(jìn)電機(jī))。 這種行為仍然是希望在新的系統(tǒng),需要一個(gè)能夠獨(dú)立控制每個(gè)門(即 他們的直線電機(jī)驅(qū)動(dòng)器)保持剛度。在這種方法中,正交電流的每個(gè)電機(jī)控制而直接電流控制。實(shí)際上電梯是根據(jù)外部呼叫信號(hào)以及自身控制規(guī)律等運(yùn)行的,而呼叫是隨機(jī)的,電梯實(shí)際上是一個(gè)人機(jī)交互式的控制系統(tǒng),單純用順序控制或邏輯控制是不能滿足控制要求的,因此,電梯控制系統(tǒng)采用隨機(jī)邏輯方式控制。 電梯繼電器控制系統(tǒng)故障率高,大大降低了電梯的可靠性和安全性,經(jīng)常造成停梯,給乘用人員帶來(lái)不便和驚憂。2kπ, id1, id2 ? ? and consequently, the currents id1, id2 can be large near the singularity. Again, the control scheme is to offset the angular position of the two motors by (1/2) π/np. As before, both motors nominally track the same trajectory so that the controller would nominally keep np(? 2 ——? 1) = π/2 and therefore keep the system away from the singularity. . Simulations To simulate th