Andrey Kalygin

Title: Andrey Kalygin: Innovator in Synchronous and Induction Motor Technologies

Introduction

Andrey Kalygin is a notable inventor based in Würenlingen, Switzerland. He has made significant contributions to the field of electrical engineering, particularly in the development of methods for starting synchronous and induction motors. With a total of 3 patents to his name, Kalygin's work has advanced the efficiency and functionality of motor technologies.

Latest Patents

Kalygin's latest patents include a method for starting a synchronous motor. This innovative method involves a rotor that creates a first magnetic field and a stator with windings connected to an electrical energy converter. The converter transforms a supply voltage into a stator voltage, which generates a rotating second magnetic field that interacts with the first magnetic field. The method outlines the application of reference stator voltages determined from a reference current vector and a reference rotor speed. It also includes measuring stator currents, calculating estimated rotor speed and position, and modifying the reference current vector based on a calculated speed error.

Another significant patent by Kalygin is a method for starting an induction machine without residual flux. This method includes scanning the state of the induction machine with varying stator frequencies and determining whether a slip value is within a specified interval. Once the slip value is confirmed to be in the interval, the method regulates the slip value towards zero and magnetizes the machine to the required level.

Career Highlights

Andrey Kalygin is currently employed at ABB Schweiz AG, a leading company in power and automation technologies. His work at ABB has allowed him to apply his innovative ideas in practical settings, contributing to advancements in motor technology.

Collaborations

Kalygin has collaborated with notable colleagues such as Christian Stulz and Christof Gutscher. These collaborations have fostered an environment of innovation and have led to the development of cutting-edge technologies in the field.

Conclusion

Andrey Kalygin's contributions to the field of motor technologies through his patents and work at ABB Schweiz AG highlight his role as an influential inventor. His innovative methods for starting synchronous and induction motors demonstrate his commitment to advancing electrical engineering.