Samuli J Heikkilä

Title: Inventor Spotlight: Samuli J. Heikkilä

Introduction

Samuli J. Heikkilä is a prominent inventor based in Helsinki, Finland, known for his contributions to electrical engineering and control systems. With a total of three patents to his name, Heikkilä has made significant advancements in technology, particularly in the field of induction machines and frequency converters.

Latest Patents

One of Heikkilä's latest patents is for a "Controller for a wound rotor slip ring induction machine." This innovative controller utilizes the direct torque control (DTC) principle to manage the torque of a wound ring rotor slip induction machine. This type of machine is also referred to as a doubly fed or cascade machine, and the controller integrates a solid-state inverter on the rotor side. Notably, it also manages the power factor at the stator terminals, ensuring synchronization of the stator voltage with the grid voltage.

Another significant innovation from Heikkilä is the "Method for frequency converter." This method enables a frequency converter to control a motor efficiently, especially when operating in a torque-controlled manner, either partly or entirely in a field weakening region. The process involves defining the direction of travel and sector of a stator flux vector, predicting a torque estimate based on voltage vector changes, and adjusting the voltage vector accordingly to maintain optimal performance.

Career Highlights

Throughout his career, Samuli J. Heikkilä has worked with notable companies that have shaped his expertise. He has gained valuable experience at ABB Oy, where he contributed to significant advancements in electrical engineering and automation technologies. His role in such organizations has laid a foundation for his inventive work and patent developments.

Collaborations

Heikkilä has collaborated with esteemed colleagues such as Kalyan P Gokhale and Douglas W Karraker. These collaborations have fostered a creative environment that has allowed for the exploration and implementation of groundbreaking technologies in their respective fields.

Conclusion

Samuli J. Heikkilä stands out as a remarkable inventor whose innovative spirit drives advancements in control systems and electrical engineering. With several patents to his name, his work continues to impact the industry positively. His dedication to excellence and collaboration with other professionals ensure that his inventions will remain relevant and influential in the ever-evolving technological landscape.