Application of N35500 bi-directional dc power supply in MPPT test

The MPPT (Maximum Power Point Tracking) test of photovoltaic inverters is an important test to verify whether the inverter can track and maintain the maximum output power point of the photovoltaic cell.The purpose of MPPT testing is to ensure that the inverter can adapt to changes in environmental factors such as light intensity and temperature, thereby maximizing the use of solar energy resources and improving power generation efficiency.

MPPT testing typically requires the use of photovoltaic simulators to simulate the characteristics of photovoltaic cells, including I-V (current voltage) curves under different lighting intensities and temperature conditions.During the testing process, the inverter will adjust its working status in real time to track the maximum output power point of the photovoltaic cell.The test results will display the MPPT efficiency of the inverter under different conditions, including static and dynamic MPPT efficiency.

When conducting MPPT testing, the I-V curve of the photovoltaic cell will be simulated to observe the power output of the inverter under different light intensities.The testing software can edit photovoltaic curves, simulate I-V curves under different light intensities, and measure the MPPT efficiency of inverters.In addition, MPPT testing also needs to evaluate the performance of the inverter under multimodal curve conditions, that is, the MPPT tracking ability of the inverter when the output characteristic curve of the photovoltaic array is complex and there are multiple power maximum points.

MPPT testing is crucial for evaluating the performance of photovoltaic inverters, as it involves not only the static MPPT efficiency of the inverter, but also the dynamic MPPT efficiency, which refers to the ability of the inverter to track the maximum power point when the light intensity changes.Through MPPT testing, it can be ensured that photovoltaic inverters can operate efficiently under various environmental conditions, thereby improving the performance and return on investment of the entire photovoltaic power generation system.

The N35500 series is a high power bidirectional programmable DC power supply with dual quadrant, integrating bidirectional power supply and regenerative load to supply and absorb current. With the design of wide range and high power density, voltage range 0~1500V, output power up to 42kW in 3U chassis, it covers a wide range of DUT test applications. N35500 series are equipped with fast dynamic response, high accuracy output and measurement functions, and can also be configured with photovoltaic simulation, battery simulation and other software to help users realize accurate and efficient testing in multiple scenarios.