Company Filing History:
Years Active: 1986
Title: Josip Dobsa: Innovator in Power Systems
Introduction
Josip Dobsa is a notable inventor based in Oberrohrdorf, Switzerland. He has made significant contributions to the field of power systems, particularly in the development of transformers and harmonic filters. With a total of 3 patents to his name, Dobsa's work has had a considerable impact on high-tension direct current transmission installations.
Latest Patents
One of Dobsa's latest patents is a static converter transformer with a harmonic filter. This invention describes a better filtering effect for disturbing harmonic currents in high-tension direct current transmission installations. The design includes a balancing winding positioned between a primary winding and a secondary winding in a three-winding transformer. The distances between the balancing winding and the other windings are carefully selected to ensure that the equivalent reactance of the balancing winding is equal to or less than zero. Additionally, a second balancing winding can be included as the inner winding in series with the first.
Another significant patent is the phase-shifting transformer arrangement for damping subsynchronous oscillations. This invention effectively dampens subsynchronous oscillations in a polyphase power network using a switching arrangement with thyristor-switched regulation. The arrangement is controllable and responds to a measurement signal that represents a physical parameter of the subsynchronous oscillations. Control windings are connected in series with the power-network-side polyphase windings of a block transformer, producing a damping torque on the generator to mitigate the oscillations.
Career Highlights
Josip Dobsa has been associated with Bbc Brown, Boveri & Company, Limited, where he has contributed to various innovative projects in power systems. His expertise in transformer technology and harmonic filtering has positioned him as a key figure in the industry.
Collaborations
Throughout his career, Dobsa has collaborated with notable colleagues, including Peter Mauchle and Walter Pfyl. These collaborations have further enhanced his contributions to the field of power systems.
Conclusion
Josip Dobsa's innovative work in power systems, particularly in transformer technology and harmonic filtering, has made a significant impact on the industry. His patents reflect a deep understanding of complex electrical systems and a commitment to improving their efficiency and reliability.