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Project “antrieb 4.0”

Research topic: energy flow in electrical motor systems.

One of many parts of intelligent drive system is the determination of lost energy during operation as well as good estimation of total losses for the system lifecycle. The goal of this research project is to develop a reliable energy loss estimation method that can predict drive system efficiency only with information provided by inverter and no additional measurements.

This approach calls for a mathematical model of the drive system that will serve as a foundation for the estimation algorithm. This model must be flexible enough and provide accurate data both when power is fed to the motor as well as when motor acts as a generator. In the last case, generated power is dissipated in a braking resistance. Since power dissipation in semiconductor devices and braking resistors is operating-point- and temperature-dependent, the drive system model and energy loss estimation method must consider temperature change along the dissipated power.

Employed as a part of intelligent drive system, the energy loss model will assist in choosing the most effective drive system tailored to the application and operating conditions. During operation, it will assist in optimization of running processes in terms of efficiency increase.