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Dsp Programme and Experiment Research of Variable-frequency Speed Regulating System of Induction Motor Based on SVPWM Technology

Author: WangChangZuo
Tutor: YinHuaJie
School: South China University of Technology
Course: Motor and electrical
Keywords: DSP Induction motor Frequency control Vector control Space vector PWM
CLC: TM921.51
Type: Master's thesis
Year: 2011
Downloads: 276
Quote: 1
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Abstract


Power electronics technology and computer control technology development provides a good opportunity for the development of AC variable speed technology . AC variable speed system has a wide range of its governor , and high efficiency is gradually replacing the DC speed control system , play an increasingly important role in the field of electric drive . As an AC motor control , vector control technology has the advantages of high control accuracy, good dynamic performance and other aspects of the rapid development in recent years , has become the preferred solution for high-performance AC variable speed system . Voltage space vector PWM ( SVPWM ) inverter and the motor as a whole, under the control of variable speed system has the advantages of low output torque ripple , high utilization of DC voltage , switching loss , suitable for high-performance motor tune speed control system . Summary and current AC motor vector control frequency control basic theory and common technology based on MATLAB / SIMULINK software platform , built AC motor vector control variable speed system simulation model , the use of vector control algorithm and simulation test, test parameters and the optimization of the parameters and models based on test results . The simulation results show that the build system control performance . MATLAB / SIMULINK simulation based on the three-phase induction motor controlled object , produced by Texas Instruments ( TI ) motor control the dedicated microprocessor TMS320F2812 digital signal processor ( DSP ) as the control core of the system , a smart power module ( IPM ) as an inverter switching devices , research and design a set of induction motor speed regulation system . The frequency control system hardware experimental platform by the main circuit , driver circuit, power circuit , sampling circuit , system debugging emulator DSP development board and charged with motor , three-phase induction motor can be used to open the ring V / F control experimental and vector control experiments . In the ride hardware experimental platform based on the use of the C language induction motor V / F control and vector control method of controlling the TMS320F2812 chip programming . Finally, experimental results are given and waveform analysis to verify the build induction motor speed control system hardware experimental platform and the validity of the corresponding source code , feasibility .

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CLC: > Industrial Technology > Electrotechnical > Electrification,electrical energy application > Electric drive ( electric drive ) > Control system > Variable frequency control system
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