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Views: 19 Author: Site Editor Publish Time: 2023-04-13 Origin: Site
All the electricity generated by the solar panels must be processed by the solar inverter before it can be exported. In this article, the solar inverter will be introduced to a certain extent, and I hope it will be helpful to you.
Battery characteristics of solar inverters.
All the company's solar inverter products.
PV battery
To develop a solar inverter system, it is very important to understand the different characteristics of solar cells (PV cells). Rp and Rs are parasitic resistances, which are infinite and zero respectively under ideal conditions.
The light intensity and temperature can greatly affect the working characteristics of the PV cell of the solar inverter. The current is directly proportional to the light intensity, but the change in light has little effect on the operating voltage. However, the operating voltage is affected by temperature. An increase in battery temperature will reduce the operating voltage, but has little effect on the current generated.
The influence of light intensity changes on battery output power is greater than that of temperature changes. This applies to all commonly used PV materials. The important result of the combination of these two effects is that the power of the solar inverter PV cell will decrease with the decrease of light intensity and/or the increase of temperature.
Maximum power point (MPP)
By continuously increasing the resistive load on the irradiated battery from zero (short-circuit event) to a very high value (open-circuit event), it can be determined that MPP.MPP is the operating point at which V x I reaches its maximum value, and under this irradiation intensity The solar inverter can achieve maximum power. In the event of a short circuit (PV voltage equals zero) or open circuit (PV current equals zero), the output power is zero.
High-quality monocrystalline silicon solar cells can generate 0.60 volts open circuit voltage at a temperature of 25°C. In the case of sufficient light and air temperature of 25°C, the temperature of a given battery may be close to 45°C, which will reduce the open circuit voltage to about 0.55V. As the temperature increases, the open circuit voltage of the solar inverter continues Decrease until the PV module is short-circuited.
The solar inverter must ensure that the PV module is working at the MPP at any given time, so that the maximum energy can be obtained from the PV module. Solar inverters can use a maximum power point control loop for this purpose, which is also called a maximum power point tracker.
Foshan New Energy Electric Technology Co., Ltd. was established in 2004. Its products adopt digital design and are suitable for various loads. It also has functions such as frequency tracking, noise filtering and low distortion. The company's main products are: solar generators, solar inverters, solar charge controllers and photovoltaic combiner boxes. For example, solar inverters include FTB-solar inverters and FT-solar inverters.
If you are interested in our company’s solar inverters, you can get in touch with us to communicate, we will provide you with the best solar inverter products and services. I wish you success in your work and good health.