| The linear-motor-driven elevator (LMDE), introduced in this paper, is one new kind of promising elevator. LMDE can be used in both skyscrapers and buildings less than seven floors, which has the following advantages: its structure is simple, and it need no penthouse machine room, even no suspension cables and counterweight, thus space-saving. It works with high speed and security, and can be applied to high floors. The research and application of LMDE is rising in the world, however up to now, there are no domestic reports.The electromagnetic design of tubular linear induction motor (TLIM), driving elevator, is the first part of this paper. Then optimum algorithm of TLIM is studied. In the next part, full digital control system of LMDE, including command system and drive system, is discussed. The research of control method and drive algorithm is the last part of this paper.The main content of this paper is as follows:In chapter 1, the development of linear motor is reviewed, and the theoretical analyses and design characteristics of the linear motor are generalized. According to the brief introduction of the advantages and various structures, the research subject is set to optimize TLIM for the drive of elevator and its controller design.In chapter 2, based on the electromagnetic design of TLIM, the influence of TLIM's construction and parameters on its properties is discussed. Giving emphasis to goodness factor design, one can conclude that the value of goodness factor must be chosen carefully to get different performance.In chapter 3, in order to improve the product of the power factor and efficiency of TLIM, a new algorithm for global optimization, the Domain Elimination Algorithm (DBA), is used in the optimal design. The Mult-SUMT method is combined with improved POWELL method to conduct local optimization procedure. As optimal results, the main index has a considerable improvement.In chapter 4, the full digital control system of elevator, using DSP chip TMS320F240 and microcontroller MCS51, is designed, which can reduce switch counts, improve reliability, achieve complex control algorithm, and obtain high efficiency and great comfort of riding. The distributed control architecture for elevator is presented. The control system is divided into several function modules which are controlled by different controller modules, so the efficiency is improved, the hoistway lines are reduced, and it is easy for people to expand and repair the control system.In chapter 5, the dynamic vertical end effect of linear motor is analyzed, which causes eddy current loss and air gap flux decrease. This effect can be represented by thefunction of primary length, speed, secondary inductance and resistance. An equivalent circuit model in the rotor flux oriented frame is developed for the vector control of TLIM by adding the end effect function. The simulation results show the improvements achieved by the proposed scheme. An intelligent control strategy, incremental PI speed controller based on single neuron, is presented, which can be regarded as the adaptive nonlinear controller and can achieve more satisfactory performance than traditional PID controllers.In chapter 6, all achievements of the dissertation are summarized and the further research work is foreseen.The creativity of this dissertation is:The research object, the linear-motor-driving elevator, is the first domestic model. During the design process, the influence of goodness factor on motor's performance is discussed, a new global optimal algorithm-domain elimination algorithm is applied in TLIM's design, Mult-SUMT method and improved POWELL method are used as local optimization. The optimal results are perfect. Based on distributed control architecture, the full digital controller of LMDE is designed using DSP chip-TMS320F240 and microcontroller MCS51. The main controller controls the elevator's statuses and drives the TLIM using VVVF method; auxiliary controllers, including floor controllers and car controller, are designed by MCS51. The...
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