How to solve the heat dissipation problem of photovoltaic equipment?

          The photovoltaic inverter is the core equipment of the photovoltaic system, and its main function is to convert the direct current generated by the photovoltaic module into alternating current that meets the requirements of the grid.

          As a power electronic device, the inverter faces the challenge of temperature as all electronic products. A survey report from the U.S. Air Force Avionics Overall Research Project shows that among all electronic product failure cases, up to 55% The ratio is caused by temperature.

          The electronic components inside the inverter are also very sensitive to temperature. According to the 10-degree rule of reliability theory, from room temperature, every 10 degrees increase in temperature will reduce the service life by half, so the heat dissipation design of the inverter is very important.

          Traditional heat dissipation methods include passive heat dissipation and air-cooled heat dissipation. Passive heat dissipation is natural cooling, and natural cooling is often suitable for low-power devices and components that do not require high temperature control and have low heat flux density for device heating. Air cooling is mainly a method of forcing the air around the device to flow with the help of a fan, so as to take away the heat emitted by the device. Air-cooled heat dissipation can be applied in a wide range, but there are also problems such as excessive noise and dust accumulation.

          As for the problems of air-cooled heat dissipation, water-cooled heat dissipation is a good solution. The efficiency of water cooling is higher than that of air cooling, and the temperature of the core is transferred to the outside or away from the core, so that the overall temperature of the core components can be reduced, and no heat will accumulate. The relatively closed space protects the equipment from dust. In addition, water-cooled heat dissipation has the characteristics of longevity and stability, and subsequent maintenance will not be too frequent.

          Water cooling is a major trend in the field of heat dissipation. Although there are disadvantages of high cost and narrow coverage, with production and development, more and more industries will accelerate the research and innovation of water cooling. This enables more industries to use better water cooling solutions.