The Study Of Elevator Door Control System Based On The Linear Motor

The elevator door machine system is a typical mechanical mechatronics contorsyetem，which relates to the mechanical design and manufacturing，digital signalprocessing，conttol theory and other disciplines of knowledge．The elevator motor asthe power plant of the elevator door machine system，it’s performance will greatlyinfluence the stability and reliability of elevator door machine system． The linearmotor which has the characteristics of no contact direct drive，running quietly andstablely，will occupy the core position in elevator door machine market．paper hasdesigned a flat-based control system of elevator door machine driven by linearinduction motor． In order to save the cost of production， let the drive device andcontrol device in to integration design． Use the Texas Company’s flagship motorcontrol chip TMS320LF2407A DSP as the control core of the system． The systemhas decided to adopt has over current， overheating， under voltage， short circuitprotection intelligent power module IPM as a driving device． So that greatlyimproved the security of the hardware device to make the system run morestable． Combined the linear induction motor with traditional rotary motor， Thepaper has introduces several kinds of control method， which is commonly used forlinear induction motor． Considering the people comfort requirement when ride onthe elevator， will reduce the mechanical shock and noise caused bynoise． Especially given S curve acceleration and deceleration process when theelevator door running．In the hardware design of elevator door system， mainlyinclude design of calculation control circuit，keyboard input and display circuit usedto achieve the interactive functions． Using intelligent power module IPM as themain device of linear motor drive and protect circuit． In the elevator door systemsoftware design， according the door system want to realize the function， and dooroperation process to be safe， reliable， stable， presents the software design．...