Implementation Of Space Vector Modulation For Three Phase Inverter Utilizing Field-Programming Gate Array

Rosli, Halimahani (2018) Implementation Of Space Vector Modulation For Three Phase Inverter Utilizing Field-Programming Gate Array. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Industries that used ac drives are growing rapidly to become more advanced because of high performances drive technology. In industry different there are different type of motor and variable speed. As for that, the three-phase inverters will give a variable voltage and variable frequency supply to the machines. As for that, using Space Vector Modulation (SVM) with Field-Programmable Gate Array (FPGA) can increase the performance of the three-phase inverter. The problem occurs within the SPWM technique and the existing SVM works. The SPWM techniques are difficult to control three-phase quantities such as amplitudes, frequencies and phase angle of three-phase voltage and depending to the torque and flux demands in vector control. This method also has a constrain for output voltage such as it cannot fully utilize the DC link voltage. Next, the problem with the existing SVM works because it totally implement the complex calculation of SVM algorithm and vector control in DSP which can increase the computational burden and hence reduce AC drive performance as the sampling time increase. The main objectives to be achieved in this task is to design and implement a space vector modulator utilizing Field-Programmable Gate Array (FPGA) which produce appropriate switching states, according to the inputs of d- and q- axis of space vector for measuring the output voltage and Fast Fourier Transform (FFT) Analysis. This modulator is suitable to be employed for any type of AC motor controls. Second objective is to verify the effectiveness of the design of SVM modulator through simulation and experiment. The scope of the project is to study various PWM and SVM techniques, especially for AC motor drives. Next, to develop simulation models of SVM using MATLAB or SIMULINK. Besides, implement SVM modulator using FPGA. As well as, performing the simulation and the experiment results to verify the effectiveness of SVM. The simulating and experimental designing the Space Vector Pulse Width Modulation (SVPWM) technique for three phase Voltage Source Inverter (VSI) using MATLAB/Simulink software for simulation as well as to develop the experimental result using FPGA. SVM can operated in high voltage and high frequency. The results that produce by SVM is high quality because it can managed to read in nanosecond.

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