研究目的
To accurately detect and compensate the harmonic and reactive currents generated by grid-connected photovoltaic systems to improve equipment utilization.
研究成果
The improved FBD current detection method, by introducing SOGI-PLL, effectively separates the positive and negative sequence components of the current, more accurately collects the grid voltage, and greatly improves the accuracy of the harmonic current detection algorithm. The simulation results verify the accuracy and validity of the improved FBD current detection method.
研究不足
The method assumes that the three-phase load of the power grid is balanced, which may not always be the case in practical applications.
1：Experimental Design and Method Selection:
Introduces a phase-locked loop based on second-order generalized integrator (SOGI-PLL) into the traditional FBD current detection method.
2：Sample Selection and Data Sources:
Uses a photovoltaic grid-connected system consisting of photovoltaic modules, boost circuits, inverters, current detection and control parts.
3：List of Experimental Equipment and Materials:
MATLAB/Simulink environment for simulation.
4：Experimental Procedures and Operational Workflow:
Builds a simulation model to compare the accuracy of FBD current detection method before and after adding reactive power compensation.
5：Data Analysis Methods:
Spectrum analysis of phase A current before and after compensation.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
