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Analysis on Speed-control Characteristics of Variable Speed Pump-control-motor System Based on AMESim

Author: ZhuLiuYing
Tutor: PengTianHao
School: Anhui University of Technology
Course: Mechanical and Electronic Engineering
Keywords: Pump control motor Compound Control System AMESim PID control Co-simulation
CLC: TH137.51
Type: Master's thesis
Year: 2010
Downloads: 208
Quote: 2
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Abstract


Variable speed hydraulic technology as a new energy-saving drive technology in many fields have been widely used, but in practice there is slow response and poor control characteristics , limiting its scope of application , recognizing variable speed pump control motor tone speed governor system characteristics and laws of the further development of energy-saving variable speed drive technology an important theoretical basis . This article describes the characteristics of conventional hydraulic speed control circuit ; variable speed hydraulic technology research profile ; variable speed pump control motor speed control system components and principles , as well as the main components of the system technical specifications and features ; simulation software AMESim and PID control principle ; AMESim and MATLAB joint simulation theory and settings. The transformation of the experimental units were designed, proposed two rehabilitation programs , analyze the strengths and weaknesses of each program to determine the speed measuring device to the original timing belt drive system , to facilitate real-time detection of motor speed , and the transformation of the system the relevant parts were designed and selection . In AMESim established a pump control speed control system, speed control system and composite valve timing system simulation model, a composite speed control system control strategy, on this basis, the three speed control system simulation, and the simulation results were analyzed. Through simulation analysis to know : Closed-loop PID control system is able to compensate the system load increases caused due to the speed of descent , when the load changes according to certain rules , the system stability, control accuracy. Composite speed control system can reduce the load due to the oscillation caused by mutations that can compensate for the increased load caused by the speed of descent , and the system returns to steady shortest time , when the load changes according to certain rules , the motor speed fluctuation amplitude minimum system stability and control accuracy is further improved. Based on AMESim and MATLAB two advantages of the software , the establishment of a joint simulation model to achieve a joint AMESim and MATLAB simulation in Simulink to build the hydraulic system controller model , known by the simulation results with the traditional control structures and methods, reflects the variable speed pump control motor speed control system superiority complex . Figure [ 73 ] Table [ 2 ] reference [ 66 ]

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CLC: > Industrial Technology > Machinery and Instrument Industry > Mechanical parts and gear > Hydraulic transmission > Hydraulic components > Hydraulic motors,hydraulic cylinders and pumps
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