DSpace has revealed a high-voltage electric motor and battery emulator for the simulation of electric drives. The HIL systems allow for emulation of electric motor and battery components with voltages of up to 800V, making it possible to represent all elements of hybrid and full-electric drives with real energy flow.
The new hardware features a compact design and modular setup, allowing for flexibility in terms of current, number of phases and the type of voltage source to be emulated.
The same hardware is used for simulation of loads (such as electric motor) and source (such as batteries and AC grid).
An open library from DSpace provides the simulation models, offering options that include FPGA models for motors and incremental encoders to DSpace’s automotive simulation models for batteries and complete powertrains.
As a result of their high dynamics and low self-inductance, the high-voltage loads can emulate variable motor inductances. High-frequency rotating fields and all operation points of an e-motor can be simulated in both motor and generator function. Because currents can be emulated with high levels of precision, it’s possible to display ripple currents, as well as harmonic frequencies, making it possible to test control concepts.
It is also possible to emulate important elements for fault simulation, such as leakage currents, zero currents or current-limited short circuits. ECUs are protected thanks to integrated monitoring and limiting of voltage, current and temperature.