Scientists from Szczecin have created a unique design of the motor\'s magnetic circuit, which gives more control over the machine\'s operation, including induced voltage and energy loss at high rotation speeds. This is possible by weakening the magnetic field of permanent magnets in the machine.

"The machine is unique in that it has an additional control and power supply system that allows it to regulate voltages in the machine, as well as all its parameters" - told PAP Prof. Ryszard Pałka from the Department of Electrical Power Engineering and Electric Drives, West Pomeranian University of Technology in Szczecin.

In his opinion, the engine is more economical than the conventional engines used today. "The machine has better dynamic parameters, that is, better acceleration. It is also safer because in the event of a collision it can be quickly disconnected" - he added.

"The basic feature of this machine is that it gives a wide range of torque control, that is, it can operate very efficiently at both low and high rotation speeds" - explained Dr. Marcin Wardach from the Szczecin university.

According to Prof. Pałka, user of an electric car equipped with this engine could drive a several kilometres longer distance compared to other electric vehicles.

"Our engine can be used in electric car drives, and as generator in wind turbines, where variable weather conditions often determine the parameters of produced energy. This design allows to control these parameters" said Dr. Piotr Paplicki, a member of the group of Szczecin constructors.

The engine has national patents. The sixth prototype of the machine, built at the Szczecin University, is the result of many years of cooperation with scientists from Germany, Italy and South Korea, as well as funding from the National Science Centre grants. (PAP)

mzb/ agt/ kap/

tr. RL