How does the photovoltaic inverter dissipate the heat?
Photovoltaic inverters are the core equipment of the photovoltaic system, but in fact the photovoltaic inverter is not just a inverter, but a security steward of the photovoltaic power system. The inverter also undertakes the detection and protection of the photovoltaic policy and the power grid. it also has the system functions such as human-computer interaction. The working performance of the photovoltaic inverter is directly related to the normal working state of the entire photovoltaic power station, and the thermal issues of photovoltaic inverters is an important factor affecting the performance of photovoltaic. it's inevitable that the inverters will generate heat during narmal operation, so how does the photovoltaic inverters dissipate the heat?
The components in the inverter have its rated working temperature. If the inverter's thermal management is bad, as the inverter continues to work, the heat generated by the components could not be dissipated in time, and accumulated heat will rise up the temperature of the inverter. Excessive temperature will impact the performance and working life of components. In order to maintain the working temperature of the internal component of the inverter, a propriate thermal solution is essential for the photovoltaic inverter.
The main heat devices in the inverter are: switching tube (IGBT, MOSFET), magnetic core components (inductance, transformer), etc. Therefore, in order to ensure that components can work under the rated temperature, thermal solution is critical for the photovoltaic inverters. Usually a propriate heat sink is mandantory for the inverters to remove the heat and dissipate out, to improve the thermal performance, the heat sink and the heat source should contact sufficient, so we often use the thermal interface material between the heat sink and electronic components to reduce the thermal resistance.
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