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Finite control set model predictive current control for three phase grid connected inverter with common mode voltage
Ali Bebboukha1, Redha Meneceur1, Labiod Chouaib1
1Laboratory of Unite Renewable Energy Development Eloued, Department of Mechanical Engineering, University of El Oued, 39000, El Oued, Algeria.
Scientific Reports
|August 27, 2024
Summary
This study presents a novel Finite Control Set Model Predictive Current Control (FCS-MPCC) to reduce common mode voltage (CMV) in grid-connected inverters. The advanced method enhances inverter performance and durability by minimizing CMV and improving current tracking.
Area of Science:
- Electrical Engineering
- Power Electronics
- Control Systems
Background:
- Common Mode Voltage (CMV) in three-phase grid-connected inverters causes leakage currents, EMI, and system degradation.
- Existing control methods struggle to effectively suppress CMV while maintaining precise current control.
Purpose of the Study:
- To develop and validate an advanced Finite Control Set Model Predictive Current Control (FCS-MPCC) strategy.
- To significantly reduce Common Mode Voltage (CMV) in three-phase grid-connected inverters.
- To enhance inverter current tracking accuracy and system durability.
Main Methods:
- Implementation of a predictive control model for inverter states.
- Design of a cost function balancing current tracking and CMV reduction.
- Real-time optimization of switching states based on a comprehensive CMV mathematical model.
Main Results:
- Substantial reduction in Common Mode Voltage (CMV) achieved.
- Significant improvements in current tracking accuracy demonstrated.
- Enhanced inverter performance and extended system lifespan validated.
Conclusions:
- The proposed FCS-MPCC effectively suppresses CMV in grid-connected inverters.
- This control strategy offers a superior alternative to conventional methods for improved system reliability.
- The research contributes to more robust and durable power electronic systems.
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