DC source as a battery simulator

Battery simulators from ARADEX reproducibly simulate high-voltage batteries, supercapacitors and fuel cells as well as the DC voltage circuit of hybrid drives. 

The controllable DC source provides a precise simulation of the voltage - especially in the case of fast and high sudden load variations.

Operating mode as a current source (left) Operating mode as a voltage source (right)
Course of the actual current and the nominal current in the case of a sudden load variation from 0 to 500 A DC. The task is to continuously keep the voltage at 250 V DC. The load with a very low-inductance structure and electromechanical switching contacts (contactor) is activated suddenly.

Technical details of the battery simulator

  • Voltages from 10 V to 1050 V and currents of +/- 900 A are possible.
  • Highly dynamic and precise control of the voltage. This prevents bothersome interferences in the on-board network of a vehicle in the case of quickly changing loads, thereby allowing realistic testing of the electrical power users and generators.
  • As a result of the parallel connection of the VECTODRIVE inverters used, the performance range can be individually adapted to the application. Continuous current and peak current x n with n devices. At the same time, the current is symmetrized throughout all used VECTODRIVE's.
  • VECTODRIVE's of the VD600 and VD1000 series can be used – resulting in very high availability worldwide and a smooth testing procedure.
  • Interface for storing your (complex) battery models (also via MATLAB/Simulink, ...) makes it possible to simulate different energy stores with only one system.
  • Existing interface to the higher-level system via CAN bus, Profibus DP and with Ethernet-based protocols; this enables the battery simulation to be easily integrated in existing testing environments. 

Example configuration DC source with low power

Example configuration DC source with high power

Areas of application

  • The DC source is used as a battery simulator in test benches for the drive components of hybrid and electric vehicles.
  • Hardware-in-the-loop (HIL) environment for tests of individual components or all components in an electric drive train, e.g. electric motors, power electronics, energy stores, DC/DC converters, ...
  • The highly dynamic DC source makes it possible to systematically test short voltage dips or voltage overshoots in the vehicle on-board system. 
  • Electric motors and hybrid drives are tested and validated by simulating different battery configurations.

The designated trademarks belong to their respective owners.