研究目的
Investigating a simple measurement method for low power photovoltaic panel power characteristic measurement based on Arduino hardware platform.
研究成果
The proposed principle of measuring MPP of photovoltaic panel is very simple and has very low hardware complexity, making it feasible for applications in weather stations and other systems using photovoltaic panels as their power source. Future work aims to refine the precision of MPP measurement by using more precise current sensors and more complex signal processing.
研究不足
Limited sample rate and resolution of the AD converter onboard the ATMEGA2560 MPU, small phase shift between voltage and current sampled signals, and an accuracy of MPP measurement approximated to ±5%.
1：Experimental Design and Method Selection:
The method is based on the characteroscope principle, utilizing a simple controlled current sink and measurement circuitry for current and voltage measurements.
2：Sample Selection and Data Sources:
A small photovoltaic panel with approximately 5 W of maximal power was used.
3：List of Experimental Equipment and Materials:
Arduino platform, N channel MOSFET, resistive divider, hall effect linear current sensor, and other components as detailed in the circuit design.
4：Experimental Procedures and Operational Workflow:
The hardware design was simulated and then tested in a laboratory environment. The firmware routine initializes temporary variables, measures the zero current output voltage, and then samples the voltage and current signals.
5：Data Analysis Methods:
The sampled data were processed using moving average filters and mathematical calculations to determine the maximum power point.
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
