Control Strategy for Three
Phase Voltage Source PWM Rectifier based on the SVM
ABSTRACT:
This paper proposes the space vector pulse width
modulation control scheme for three phase voltage source PWM rectifier. The
control system based on SVPWM includes two PI controllers which are used to
regulate the AC currents and DC link voltage. The proposed control can
stabilize the minimum of the systems storage function at the desired
equilibrium point determined by unity power factor and sinusoidal current on
the AC side, and constant output voltage on the DC side. So the stable state
performance and robustness against the load’s disturbance of PWM rectifiers are
both improved. The result simulation shows feasibility of this strategy.
KEYWORDS:
1.
PWM rectifier
2.
SVPWM
3.
Power factor.
SOFTWARE: MATLAB/SIMULINK
CIRCUIT SCHEMATIC DIAGRAM:
EXPECTED SIMULATION RESULTS:
CONCLUSION:
In
this paper, a control strategy of the three phase voltage source PWM rectifier
based on the space vector modulation is proposed. The control system based on SVPWM
includes two PI controllers which are used to regulate the AC current and an
outer DC voltage loop is composed by IP controller with anti-windup strategy.
The simulation results shows a good performance of proposed strategy method at
start-up and during load variations, providing a good regulation of output DC
voltage, sinusoidal input AC current and unitary power factor.
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