Designing the U/F Control Circuit and Space Vector
This paper presents how to implement SVPWM for two-level three-phase inverters on the dsPIC30F4011 microcontroller while simultaneously implementing the U/F control algorithm.
In this paper, we implement a hardware model of three-phase voltage source inverter based on space vector PWM algorithm using 16-bit Digital Signal Controller dsPIC30F4011. The experimental results are carefully investigated to demonstrate that our proposed approach gains a high performance. Circuit diagram of the three-phase SVPWM inverter.
The most commonly used PWM schemes for three-phase voltage source inverters (VSI) are sinusoidal PWM (SPWM) and space vector PWM (SVPWM). There is an increasing trend of using space vector PWM (SVPWM) because of it reduces harmonic content in voltage, increases fundamental output voltage by 15% & smooth control of IM.
The inverter outputs are influenced by Pulse width modulation (PWM) methods. The space vector-PWM (SVPWM) is one of the most effective switching control strategies used to control inverter outputs. In this article, an efficient SVPWM technique is modeled and used in two-level Three-Phase VSI.
Pulse Width Modulation (PWM) is a common technique used in many different applications of 3-phase voltage source inverter. This paper presents a pulse generation of SPWM technique for three-phase voltage source inverter using dsPIC33FJ16GS402 controller. Logic for implementing SPWM technique is described.
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