Company Filing History:
Years Active: 2006-2018
Title: Antti Piippo: Innovator in Angle Sensor Technology
Introduction
Antti Piippo is a notable inventor based in Espoo, Finland. He has made significant contributions to the field of angle sensor technology, holding a total of 7 patents. His work focuses on improving the efficiency and accuracy of permanent magnet synchronous motors.
Latest Patents
Antti's latest patents include a "Method and apparatus for estimating an angle offset of an angle sensor." This patent describes a two-stage method for estimating an angle offset in a system that includes a permanent-magnet synchronous motor. The process begins with determining an initial value for the estimated angle offset through a short circuit test. Following this, the motor's torque is controlled to maintain zero speed, allowing for minor adjustments to the angle offset value to achieve a minimum magnitude of stator current. The final angle offset is established at the point where the stator current is minimized.
Another significant patent is the "Method and arrangement for controlling permanent magnet synchronous machines." This invention provides a method for controlling a sensorless permanent magnet synchronous machine using a frequency converter. The frequency converter feeds electrical power to the machine, producing a current vector with a defined magnitude. This vector is rotated to drive the rotor of the machine. The method includes defining a value for the current vector's magnitude and a frequency limit before starting the drive, ensuring efficient operation across varying frequencies.
Career Highlights
Antti Piippo has worked with prominent companies such as ABB Oy and ABB Schweiz AG. His experience in these organizations has allowed him to develop and refine his innovative ideas in the field of motor control and angle sensing.
Collaborations
Antti has collaborated with notable colleagues, including Janne Salomäki and Matti Eskola. Their teamwork has contributed to the advancement of technologies in their respective fields.
Conclusion
Antti Piippo's contributions to angle sensor technology and motor control demonstrate his innovative spirit and dedication to advancing engineering solutions. His patents reflect a commitment to enhancing the performance of permanent magnet synchronous motors, making him a significant figure in the field.