| dc.description.abstract | At present, there are problems in traditional solar energy: the output power is greatly reduced on cloudy days, and in the case of shading, shadowing or aging, the output energy will be reduced, and the output will be maximized under uniform illumination, if it is under non-uniform illumination. The output power is limited by the minimum illumination.
This study uses a parallel method to increase the total output current, different input voltages, through the design of DC / DC, while achieving the lock of the common voltage output. Control the switch (on) time to change the output current, dynamic extraction, balance the self-locking current distribution, and then confirm the current sunlight intensity, temperature, change the load with the illuminance meter, and confirm the current output power, current, voltage.
Compared with the traditional method, the output power can be obviously increased by more than 30% under low light illumination, that is, the illumination environment is not ideal, and the output power can be maximized, and the energy output can be extracted as much as possible.
In this parallel mode, the individual units can independently take out the energy and send them out in a single unit. In series, due to the single unit loss, the limited energy flows, and the more parallel, the more obvious the dynamic distribution. Under different loads, the characteristic change of the power curve (low light and low load) is still larger than the traditional one. If individual cells are damaged, the solar panel can still maintain the best output power.
In the simulated solar panel damage experiment, the traditional solar panel does not have any power output, and the experimental solar panel still has sustainable output power. And when there is temperature, the protection device and the detection display are automatically cut off. Under the conditions of 3.76K lux, 2.8Ω~9.3Ω and Uniformity<3%, the output power is 1.6~3.6 times of that of traditional solar panels; under the condition of 1.16K lux and Uniformity?30%, the output power is 10 times of traditional solar panels; the output power is 2 to 3.6 times that of conventional solar panels under a full day of illumination. The future is expected to develop into a large power system. | en_US |