3 Phase Inverter 10kw

Control of the Three-Phase Inverter

A three-phase inverter (VSI) is operated to control the voltage and its frequency, balancing and leveling of loads, and harmonics mitigation at PCC. To maintain constant frequency, 

the VSI is forced to operate at desired frequency. For the voltage and frequency control at PCC in the presence of perturbations and nonlinear load, proportional resonant (AWPRC) and proportional integral (AWPI) controllers with antiwindup are suggested to avoid the saturation phenomenon. 

As shown in Fig. 3.7, two different control approaches are combined to achieve all desired tasks simultaneously when the system is operating in grid and islanding modes. 

A remote-controlled switch selector is used to select the right control based on the information received from the data center using smart meters. 

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