Company Filing History:
Years Active: 2023-2025
Title: The Innovative Contributions of Roland Pieler
Introduction
Roland Pieler is a notable inventor based in Wels-Thalheim, Austria. He has made significant contributions to the field of inverter technology, holding a total of 4 patents. His work focuses on improving the efficiency and safety of inverter assemblies, which are crucial components in various electrical systems.
Latest Patents
Pieler's latest patents include a method for operating an inverter assembly and an inverter assembly designed to carry out this method. This innovative approach aims to reduce the risk of triggering a ground fault circuit interrupter. The method involves determining the leakage capacitance to ground at the DC input of each inverter before feeding in the alternating voltage. Additionally, it assesses which AC output is connected to which line of the supply network. By considering the leakage capacitance and a defined maximum leakage current, the power units are asymmetrically modulated to ensure that the amplitudes of the voltages at the AC outputs differ in size. The voltage with the greater amplitude is produced at the AC output connected to the phase connection, while the lower amplitude voltage is generated at the output connected to the neutral conductor.
Another significant patent by Pieler is a method for controlling a multilevel inverter with a split DC link. This invention enhances voltage balancing at the DC link capacitor voltages of a multi-level inverter. It calculates a modulation signal based on the actual electric power difference at the DC link capacitors and superimposes this signal onto the setpoint value for setting an output voltage or output current of the inverter.
Career Highlights
Roland Pieler is currently employed at Fronius International GmbH, a company renowned for its innovative solutions in the field of solar energy and inverter technology. His work at Fronius has allowed him to develop cutting-edge technologies that contribute to the advancement of renewable energy systems.
Collaborations
Pieler collaborates with talented individuals such as Harald Josef Kreuzer and Michael Rothböck, who share his passion for innovation in inverter technology. Their combined expertise fosters a creative environment that leads to groundbreaking advancements in the field.
Conclusion
Roland Pieler's contributions to inverter technology through his patents and work at Fronius International GmbH highlight his role as a key innovator in the industry. His inventions not only enhance the efficiency and safety of electrical