研究目的
To present an alternative scheme using fuzzy logic methodology to control a grid-connected photovoltaic system through Z-source inverter (ZSI) using Maximum Constant Boost Control (MCBC) method, enhancing system stability and ensuring unity power factor operation under various disturbances.
研究成果
The system response using FLC is more suitable than the traditional PI controller in terms of less overshoot and less settling time. Also, the system is more stable speedily and softly at the desired value with less oscillation compared with PI controller.
研究不足
The study is based on simulation results using MATLAB-SIMULINK, which may not fully capture all real-world operational conditions and disturbances.
1：Experimental Design and Method Selection:
The study uses MATLAB-SIMULINK simulation toolbox for system model and control implementation. Fuzzy Logic Controllers (FLCs) are designed to enhance system stability.
2：Sample Selection and Data Sources:
A 10-kW photovoltaic array connected to the grid based on ZSI is simulated under various disturbances like irradiation change, three-phase grid fault, and voltage swell.
3：List of Experimental Equipment and Materials:
Parameters of the PV array under STC, ZSI network, and the grid are used.
4：Experimental Procedures and Operational Workflow:
The system response is observed under changes of irradiation, three-phase short circuit fault, and voltage swell, comparing FLC and PI control systems.
5：Data Analysis Methods:
The system response is analyzed in terms of system damping, settling time, and dynamic response improvement.
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