Elevator Control Method Research And Application Of Permanent Magnet Linear Motor Based On

In the development of modern society, more and more high-rise buildings, used for transporting personnel and equipment or items to rotary motor is driven with a rope of elevator. It appears in the process of running a lot of shortage, forcing people to seek a new elevator instead of the existing rope of elevator.Permanent magnet linear synchronous motor drive is an excellent cordless lift elevator type, with good prospects and broad space for development. Structurally, it is the cordless elevator, overall structure is simple, no counterweight. Covers an area of more than corded lift much less, thus saving investment. Because you can segmentation processing, segmentation installation makes this lift restrictions on the run from a distance. As the mover permanent magnets, making the motor thrust, fast running speed elevators. These features are very suitable for high-rise buildings, the elevator for the future application of guiding significance.Elevator as a means of transportation equipment, security is one of the most important factors, the existing elevator in the event of failure, is the use of external equipment or the facilities to carry out self-help. In this paper, design of the use of permanent magnet linear motor characteristics of self-help.In this paper, the main work completed is as follows:(1) In three different coordinate system (three-phase stationary coordinate system, two-phase stationary coordinate system, two-phase rotating coordinate system), the establishment of a mathematical analysis model of permanent magnet linear motor.(2) The working principle of permanent magnet motor, and described its control principle and control strategy, research and current double closed loop speed control loop, and made improvements on the basis of its design.(3) Using iterative learning method, the velocity fluctuations occur repeated control and elimination of the stator end effect using segmented arise.(4) In the elevator out of control situation, the design of control system of the mover to permanent magnet, permanent magnet linear motor as a generator to be mixed with the motor body, based on the emergency mode control, to achieve the purpose of self-help.(5) Use matlab/simulink simulation software for these programs and the effectiveness of simulation studies and simulation results obtained.