Bernard Descollaz

Title: Inventor Bernard Descollaz: Innovating Multilevel Converters in Railway Technology

Introduction

Bernard Descollaz, an accomplished inventor based in Annemasse, France, has made significant strides in the field of electrical engineering. With his expertise focused on multilevel converter technology, Descollaz has contributed to enhancing the performance of railway traction applications through innovative designs.

Latest Patents

Descollaz holds a notable patent for a multilevel converter and method of converting a supply voltage. This invention comprises a transformer arrangement that includes at least two transformer units, each equipped with primary and secondary windings in a shared core structure. This innovative design optimizes the use of transformer cores by merging them into one shared core that contains at least one return limb, which is crucial for creating closed magnetic flux paths between the transformer units. The technique of sharing return limbs, particularly when fed with phase-shifted primary voltage signals, significantly reduces the overall volume and weight compared to conventional transformer core structures. This multilevel converter is particularly advantageous in railway traction applications, where efficiency and space-saving designs are essential.

Career Highlights

Throughout his career, Bernard Descollaz has been a vital member of Abb Technology AG, where he applies his innovative mindset and technical skills to develop advanced solutions in power conversion technology. His ability to diagnose complex electrical challenges and devise effective solutions has positioned him as a key player in the industry.

Collaborations

Working alongside skilled colleagues such as Philippe Stefanutti and Harry Zueger, Descollaz has fostered a collaborative environment that promotes innovation and knowledge sharing. These partnerships have not only enriched his work but have also contributed to the organization's success in creating cutting-edge railway technology.

Conclusion

Bernard Descollaz’s contributions to electrical engineering, particularly through his multilevel converter invention, exemplify the role of innovation in transforming the railway industry. His work reflects a commitment to improving technology and functionality within railway traction applications, benefiting both the industry and end-users alike.