外文翻譯--一個永磁直線同步電動機驅動的電梯門機的設計與研究-文庫吧
2025-05-14 08:39 本頁面
【正文】 Finite element software of Mag 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 system The hardware structure of control system is shown in figure 2。mainly include controller,SPWM,signal generator,rectifier circuit,intelligent power module IPM and sensors, etc. The controller selects and uses the TI Company’s TMS320LF2407, 2407 has builtin module and pulse coding capture circuit, which can produce PWM power module IPM uses Fuji Company’s 6MBP15RH060,to simplify the power circuit design by the builtin drive system’s designation is mainly revolves control chip 2407 and intelligent power module IPM, using hall current sensor monitoring electric current on realtime, the current signal sent to DSP control chip to current peculiar protection.[2][3] Adopting photoelectric encoder detecting the door’s operating position and speed. Figure 2 control system handware structure C. System controller chart The control system use feedback control on three close loops: the position P,velocity V,and current I, diagram of system controller block as shown in Figure 3. The control process is,first of all, pare location P measured by optical encoder and position mand P*,then find the speed mand value V* by the position controller,the signal by pared V with V* after the speed controller find the current vector mand I。 detected motor current Ia and Ib by current sensor,then through the adder add Ia and Ib obtain Ic,then after coordinate transformation into a qaxis and d axis current of the motor current to achieve closedloop negative feedback speed V measured by the optical encoder and speed mand V* to realize the negative feedback of motor experimental results show that the controller is easy to implement on the elevator door control and debugging. Figure 3 system controller chart III. DOOR OPERATION CURVE DESIGN Door operating curves shown in Figure 4， The figure for the single horizontal stroke fan elevator door, the vertical axis for the single fan speed elevator door. Above the xcoordinate for closes the running status curve, underneath for opens the running status curve. The figure shows the Door speed run is not run as a linear process of acceleration or deceleration, but to run as an Sshaped curve. Figure 4 Machine running curve This section first run curve discrete, divided into m sampling points, and then set corresponding to each sampling time and speed, the sampling rate corresponds to the value of time and stored in th
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