【正文】
good safety requirements, but the smooth operation and low the door is straightline motion with reciprocating movement,the designation of a mechanical device,which transition the rotary motion of the motor to straightline motion needed to realize the door open/close,is necessary.[1] At present elevator door market in domestic,drive motor mostly adopt AC asynchronous motor or linear motor, due to the high speed,position and difficult control of the AC asynchronous motor,it must have slow institutions contains belt or gear transmission etc,which make its structure plex,efficiency lowly,noisy and the performance of speed poorly. Though the performance of speed of linear motor is easy,but for the existence of mentator,the reliability is poor,and easy to produce electromagnetic interference and spark,also need DC electrical source,difficulty to using a PMLSM as drive motor,can save the transmission mechanism between motor and the gate,direct driving gear for linear motion,improve the reliability and safety of the paper introduce the elevator door is using a PMSLM as drive mechanical structure drawing shown in figure 1, D1 and D2 are connected by a belt,through the PMLSM motor to realize two doors synchronous open/’s control circuit adopts the TMS320LF240X TI Company LF2407 series as control chip,bining with intelligent power module IPM,to realize the door stable operate according to the curve set.Figure 1 Mechanical structure diagram of elevator doorII. CIRCUIT CONTROL SYSTEM A. Motor structure and optimization designTABLE I. THE SPECIFIC PARAMETERS OF THE PMLSMThis paper used Finite element software of Magnet to modeling the PMLSM. Prototype’s structures are short primary and long secondary in unilateral,primary using scores slot concentrated winding specific parameters of the PMLSM as shown in table 1.B. Hardware circuit design of the control systemThe hardware structure of control system is shown in figure 2。通過實(shí)驗(yàn)分析,設(shè)計(jì)使用的電梯門通過設(shè)置曲線和穩(wěn)定運(yùn)行從而操作DSP和智能功率模塊(IPM)的組合來控制系統(tǒng)。因?yàn)檫@種門做直線往復(fù)運(yùn)動(dòng),這種機(jī)械設(shè)備是將旋轉(zhuǎn)運(yùn)動(dòng)過渡到需要的直線運(yùn)動(dòng),從而實(shí)現(xiàn)門的開/閉,這種指定是必要的。通過永磁直線同步電動(dòng)機(jī)電機(jī)的機(jī)械結(jié)構(gòu)圖如圖1所示,D1和D2是由皮帶連接,通過PMSLM來實(shí)現(xiàn)兩個(gè)門的同步開啟/關(guān)閉。控制系統(tǒng)硬件結(jié)構(gòu)如圖2所示,主要包括控制器,SPWM,信號(hào)發(fā)生器,整流電路,智能功率模塊IPM和傳感器等??刂七^程是,首先,比較由光電編碼器測(cè)量的P的坐標(biāo)和位置命令P*的位置,然后通過速度指令值V*找到位置控制器,在速度控制器找到電流矢量命令I(lǐng)之后,通過比較V* V找到信號(hào)。上面的x坐標(biāo)為關(guān)閉的運(yùn)行狀態(tài)曲線,下方為開式的運(yùn)行狀態(tài)曲線。[4] [5]當(dāng)門在運(yùn)行時(shí),通過由參考值和來自信號(hào)輸入到DSP的值建立起來的實(shí)際速率電路,來完成門控的運(yùn)行速度。初始化包括DSP與外部設(shè)備的初始化。Figure 5 Door wide selflearning flow chartV. EXPERIMENTAL RESULTS 五.實(shí)驗(yàn)結(jié)果電梯意外通常發(fā)生在門系統(tǒng),門無法打開,以及打開是最嚴(yán)重的事件。在門打開或關(guān)閉,id很小的變化,iq就會(huì)發(fā)生很大變化,由于被迫關(guān)閉能力是有功功率,因此,產(chǎn)生了大電流iq。這個(gè)系統(tǒng)還可以用于倉庫門和家用自動(dòng)門,也可以使用該系統(tǒng)來改革現(xiàn)有的電梯門和自動(dòng)門。佩奇(S):829 832,2008..[2]黃銳,周鑒培,和金圭德。 IEEE磁交易,37(5):36683