研究目的
To propose a new global MPPT method for PV array under non-uniform insolation that efficiently tracks the global peak by utilizing I-V characteristics and avoids the need to track every local peak with P&O.
研究成果
The proposed MPPT method effectively tracks the global peak under partially shaded conditions by leveraging I-V characteristics and a bisection approach, demonstrating simplicity and efficiency in simulation. It offers a viable solution for maximizing PV array utilization without the exhaustive tracking of every local peak.
研究不足
The method requires accurate measurement of array current at specific voltages and may be affected by rapid changes in insolation conditions. The implementation cost could increase with the need for precise sensors.
1：Experimental Design and Method Selection:
The study employs a novel MPPT method that utilizes I-V characteristics to identify knee points near local peaks of the P-V curve, followed by P&O to pinpoint the global peak.
2：Sample Selection and Data Sources:
Simulations are performed using MATLAB/Simulink on a PV system model under partially shaded conditions.
3：List of Experimental Equipment and Materials:
A PV array connected to a resistive load through a boost converter, with parameters detailed in the paper.
4：Experimental Procedures and Operational Workflow:
The algorithm measures array current at defined voltages, applies bisection and validation to find knee points, compares powers at these points, and uses P&O at the knee point of the region containing the global peak.
5：Data Analysis Methods:
The performance is verified through simulation results showing the tracking of global peak under varying shading conditions.
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
