Research On Power Unit Of Steel Formwork Operation Frame Platform Of High-rise Building

In recent years,with the acceleration of China’s urbanization process,high-rise and super high-rise buildings have been increasing,and all parties have put forward new and higher-level requirements in the face of architectural design.The foreign construction field often adopts new construction methods such as overall lifting technology and new technical construction technology in the design,and has carried out a large number of experimental studies to analyze.After the efforts of several generations,most of China ’s super High-rise buildings generally adopt the overall lifting technology.In the general use of overall lifting technology in high-rise buildings,the research of the power unit as the core technology of the power in the lifting process is often ignored.The power unit of the high-rise building steel formwork operation platform platform is the stress on all aspects of the steel formwork lifting process The overall load bearing and unbalanced force of the formwork have played an important role in the device.At this stage,the power units of the steel formwork operation platform platform of high-rise buildings at home and abroad mainly use hydraulic jacks,but with the advancement of technology,the single lifting function of hydraulic jacks can no longer meet the needs of the building.This article uses permanent magnet synchronous motors as the model The function of the traditional hydraulic jack is replaced to realize the independent lifting of the formwork system at the variable cross section,thereby saving a lot of materials and equipment,reducing manual workload,reducing the project period,achieving a more concise and convenient effect,and reducing construction costs.This article is a project cooperated by Jilin Jinzheng Construction Engineering Co.,Ltd.and Changchun University of Technology.The goal is to study the power system of the overall lifting platform technology of high-rise buildings.While improving the power system of the lifting platform and studying the control strategy,it is The stability and operability of the system.High-rise building steel formwork due to the different forces in various parts and stages in the lifting process,as well as the internal and external structures are different during the loading process,the internal and external forces are also different,so the performance of the permanent magnet synchronous motor as a lifting power device is proposed higher requirement.Permanent magnet synchronous motor PMSM is a typical nonlinear mathematical model.When it is used as the power source of the lifting device,their speed control system needs a very accurate control model and control effect.As a traditional PI control,it is difficult to satisfy its steel.The specific requirements of formwork in various construction projects.Therefore,in order to achieve the actual effect of enhancing the steel formwork platform,the traditional PI algorithm must be improved as necessary.This paper adopts a three-closed-loop control strategy,which divides the control of permanent magnet synchronous motor into position and speed and current.The current loop adopts the PI control method of current feedback decoupling and deviation decoupling,respectively.PID control,fuzzy control and fuzzy PID control are used for separate control,and the position loop is controlled by a simple proportional adjustment method.With the establishment of the simulation model and the actual effect of the simulation,in the three closed-loop control strategy,the current loop uses deviation decoupling control method,the speed loop uses fuzzy PID control method,and the position loop uses proportional adjustment control method.On the simulation platform The control effect also meets the requirements for stability and accuracy of the steel formwork lifting of high-rise buildings,and contributes to the development of the actual construction site steel platform lifting control system.The project has important practical significance and creativity for the simplification and mechanization of the construction process.