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The advance of high speed drive systems increasingly leads to the need of new holistic eDrive concepts, so that such applications can be suitably designed in order to present actual advantages in terms of energy, efficiency and costs.
RX ROTOR
There’s no doubt about it: modern eDrives will be among the drive systems of the future. Which is why manufacturers and developers are absolutely committed to further optimizing electric drive units, tweaking everything from torque and power density to efficiency, weight and above all: production costs.
Downsizing" plays an increasingly important role in the development of electric motors. Smaller, compact units with consistently high performance are the future of e-mobility, because smaller size automatically means sustainable material use: significantly less rare earths and other raw materials are needed, thus conserving resources.
Power electronics have a substantial influence on the development of electric vehicles. Because the efficiency of the “drive” system as a whole is largely dictated by the electronics and control systems. The electronics are traditionally split into power electronics and controllers.
Especially in the case of high-frequency 48 V motors where, for design reasons, the inductance of the motor is very low, it is crucial to locate the power electronics as close to the motor as possible - i. e. at the windings.
In order to improve efficiency in the overall system of high-frequency motors, we’ve created a simulation model to specifically address winding losses. Winding losses generally have significant impact on the efficiency of the motor, particularly in high-frequency systems. Winding losses can be categorized into a direct current component (DC) and an alternating current component (AC).
In order to design reliable systems with high efficiency, the accurate prediction of winding losses is more important than ever - from a sustainability perspective as well.
