Improve system long-term operation reliability and water supply stability
Jun 04, 2018

At present, the efficiency of silicon solar panels can hardly be greatly improved in a short period of time. Although the second-generation thin-film solar cells and the third-generation organic solar-cell devices have obvious advantages in terms of cost, they are currently in mass production with silicon solar panels. It is not yet competitive. For some time in the future, silicon panels will still occupy a large share of the market. Therefore, the direction of R&D of solar water pump systems in the future should focus on the following three aspects:

(1) Develop high-efficiency pumps and motors to increase the range of high-efficiency zones for motors and pumps under a wide range of speed and flow changes, and to reduce the system's flood threshold power. Develop low-cost, high-reliability intelligent controllers to improve performance matching among components and respond to changing climate conditions, thereby improving system dynamic quality and global efficiency. At the same time, it will increase the development and promotion of integrated technologies for the complementary use of energy such as wind, light and heat in small and medium sized winds.

(2) General methods for predicting the long-term performance of solar water pump systems under changing multi-factors such as climate, light, water level, and water demand, and system design methods based on dynamic changes, establishing databases in different regions to gradually replace the method of using static average estimation ;

(3) With the reduction of the price of battery panels and the development of small and medium-sized solar energy systems, in the future, based on the optimization of the power of the panels, the evaluation of the operational reliability of the system should be increased to improve the long-term operational reliability of the system and the stability of the water supply.

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