Three-Phase LCL-Filtered PWM Inverter Simulation Model
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Resource Overview
Simulation model of a three-phase LCL-filtered PWM inverter with included references. Features a dual-loop control structure with grid-current outer loop and capacitor-current feedforward inner loop, applicable for grid-side converters in photovoltaic and wind power generation systems. The model demonstrates control algorithm implementation using MATLAB/Simulink with PI regulators and PWM modulation techniques.
Detailed Documentation
This paper presents a three-phase LCL-filtered PWM inverter simulation model accompanied by relevant references. The inverter employs a dual-loop control structure consisting of a grid-current outer loop and a capacitor-current feedforward inner loop, suitable for implementation in grid-side converters for photovoltaic and wind power generation systems. This control architecture effectively enhances converter performance and stability while ensuring precise current regulation. The simulation model implements proportional-integral (PI) controllers for current loops and space vector PWM modulation, providing a valuable tool for designing and optimizing power converters in renewable energy systems. Key functions include Park/Clarke transformations for dq-frame control and LCL filter resonance damping algorithms for system stability.
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