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High-Voltage Electronic Load

Electronic load for power HIL simulation up to 800 V

The high-voltage electronic load from dSPACE is ideally suited for testing electric motor controllers including power electronics with emulated motor and precise real currents.

  • Modular hardware for different applications and special application topologies
  • Modules can be connected in parallel for increased power output
  • Replacement for mechanic test benches

One emulator cabinet can hold up to 18 high-voltage electronic load modules.

Application Areas

The high-voltage electronic load from dSPACE makes it possible to emulate an electric motor and its battery during hardware-in-the-loop (HIL) simulation. Consequently, this allows for testing control units for traction systems with voltages up to 800 V using integrated power electronics. The electronic load can either emulate arbitrary AC sources, e.g., two or three phases of 50 Hz, and up to 400 Hz or DC sources.

Typical applications are dynamic tests at power level of

  • Automotive motor controllers
  • Industrial servo controllers
  • DC/DC and AC/DC converters

For these applications the following test scenarios are possible, e.g.:

  • Functional tests
  • Load test (burn-in, end-of-line, controlled fault conditions)
  • Test of controller robustness (motor parameter variation)
  • Test of critical operation conditions

Key Benefits

  • Current-based emulation for simulating variable motor inductances without the need to switch or exchange any hardware components
  • In-house development of hardware and software by dSPACE, resulting in a turn-key-system from one provider
  • Voltage control mode for the emulation of DC and AC supply sources
  • Identical open simulation models for tests on signal level or power level
  • Compact design with high energy density for an assembly with minimum space requirements
  • Water-cooled power electronics for user-friendly environmental conditions
  • Efficient operation due to a circular energy flow without energy recovery to the mains (only 20% of emulation power required by power supply due to energy recovery)
  • Specifically tailored for HIL simulation at power level
  • Safe test conditions due to safety mechanisms for power electronics

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