光伏汇流箱与NTC温度传感器

Photovoltaic combiner box and NTC temperature sensor

Number of Views:28742022-05-17 08:56:07

Photovoltaic power generation is a clean and low-carbon power generation method, which is highly valued by everyone. It forms a small power grid independently in remote areas, and combines with batteries to achieve good power supply. Therefore, photovoltaic power generation has developed rapidly. Photovoltaic combiner boxes have been widely used in practical systems as a series of photovoltaic cells. Through the process of first converging and then inverting, photovoltaic power can be directly input into the AC power grid or used by the load.
The photovoltaic combiner box includes a fuse, a surge arrester connected to the DC bus to prevent lightning strikes, a DC circuit breaker, a current value and voltage value detection module connected in series with photovoltaic cells, a data acquisition module for collecting the operating status information of the photovoltaic combiner box, and a measurement module. The NTC temperature sensor for the temperature in the photovoltaic combiner box body, the main controller for processing the operating status information of the photovoltaic combiner box and its internal temperature information, the DC/DC conversion device connected in series with the photovoltaic cells, and the input terminal connected to the DC/DC conversion device. A PWM control module, and a current sampling circuit connected to the load input end for collecting the current value.
The NTC temperature sensor used in the photovoltaic combiner box is mainly used to collect its operating status information and send its internal temperature information to the host computer to monitor the operating status of the photovoltaic combiner box.

The NTC temperature sensor for the photovoltaic combiner box is a high-precision single-ended glass-sealed thermistor packaged into a metal ring shell, and connected to a high thermal conductivity and strong wire to form a high temperature and high waterproof NTC temperature sensor. It has high precision, high sensitivity, high reliability, and adopts double-layer sealing process, which has the characteristics of good insulation sealing, anti-mechanical collision, anti-bending ability and good stability.

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