SMA Solar Technology has patented a method for determining a characteristic curve for a photovoltaic string in a system with an inverter and DC/DC converter. The method involves operating the converter in response to current signature, varying current or voltage, and detecting values for current and voltage. GlobalData’s report on SMA Solar Technology gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on SMA Solar Technology, Smart energy mgmt systems was a key innovation area identified from patents. SMA Solar Technology's grant share as of January 2024 was 49%. Grant share is based on the ratio of number of grants to total number of patents.
Method for determining characteristic curve for photovoltaic string
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A recently granted patent (Publication Number: US11888439B2) discloses a method for determining a characteristic curve for a photovoltaic (PV) string in a PV system with an inverter. The method involves operating a DC/DC converter in two different modes based on the current signature produced by the inverter. By varying the current or voltage of the PV string and detecting corresponding values, the characteristic curve is determined. The patent also covers the operation of multiple PV modules within the string via respective DC/DC converters, ensuring the voltage remains within a permitted range for the inverter's input.
Furthermore, the patent includes details about a DC/DC converter and a photovoltaic system incorporating the method described. The DC/DC converter is designed to operate a PV module in two different modes based on the conversion ratio of output voltage to input voltage. The photovoltaic system comprises a PV generator, an inverter, and a measurement unit for detecting current and voltage values. The system allows for efficient operation of PV modules within the string, ensuring optimal power generation and compatibility with the power supply network. Overall, the patent aims to enhance the performance and reliability of PV systems by optimizing the operation of PV modules through innovative control mechanisms.
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