Joint Venture to Provide Motor Control Software

Semikron has strengthened its presence in the electric and hybrid vehicle market by forming a 50/50 joint venture with Drivetek, a developer of electrical drives and control technology. The joint venture, Skaitek, will provide motor control software optimised for the latest generation of Skai 2 IGBT and MOSFET inverter systems for vehicle applications, which were launched by Semikron in May 2010. Skai 2, with the optimised software, is designed to present the optimal drivetrain system for vehicle inverter applications in the power range of 10 to 250kVA and battery voltages from 24 to 900V.

Quasar software is based on a modern, field-oriented closed-loop control system. It is designed to guarantee steady control of the electrical machine up to the strong field-weakening range for realisation of efficient and dynamic traction drives and generator solutions. Quasar receives input from a central controller via CAN bus and converts this precisely into a speed or torque. The software is tailored to the control of brushless DC, interior and surface mounted permanent magnet synchronous and AC induction machines.

As a standard, the motor control software also offers a powerful set of additional control functions, for example, battery deep discharge protection and overvoltage protection for DC energy recovery. The additional Q-Control software package makes it easier for customers to carry out machine parameterisation and setup. This PC-based Windows application allows visualisation and setup of the customer system via CAN interface. According to Semikron, the Skai 2 product platform is predestined for use in automotive applications owing to the use of pressure contact technology.

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