Test bench for electric machines and rapid prototyping of inverters

• Engineering & Technology

946 430 850

(+34) 946 430 850 (International calls)

A dynamometer test bench for developing and validating electric motors, inverters, and electric traction control strategies under safe and repeatable conditions.

It integrates a load machine, a bidirectional DC power supply, and high-performance data acquisition and instrumentation systems. This enables testing ranging from nominal operating conditions and overload scenarios to simulated driving cycles using Dynacar.

The facility supports standard performance, efficiency, and thermal testing.

Equipment

The test bench has the following characteristics:

• Loading machine (maximum values)

        - Power: 157 kW
        - Torque: 487 Nm
        - Speed: 8,000 rpm

• Bi-directional DC power source

        - Power: 280 kW
        - DC current: 560 A
        - Voltage: 250 – 700 VDC

• Torque / speed transducer

        - Torque: 500 Nm
        - Speed: 20,000 rpm

• Current transducers

        - Nominal RMS and DC current: 400 A
        - Peak current: 566 A
        - Precision: 0.0044 %

• Cooling system

        - Ethylene glycol / water solution
        - Temperature range: -30 °C – 90 °C
        - Heating power: 3.5 kW
        - Cooling power (room temperature 20 °C): 1.6 kW
        - Flow rate: 10 l/min

• Power analyser

        - Input channels: 4 + motor option
        - Precision: 0.02%
        - Bandwidth: 0.1 Hz – 1 MHz

• Data acquisition system

        - Number of input channels: 30
        - Acquisition time: 10 ms
        - Thermocouples: R, S, B, K, E, J, T, L, U, N, W
        - 3-wire RTD. Pt100, JPt100, Ni100 SAMA, Ni100 DIN, Ni120, Pt50, Cu10, Cu10 L&N, Cu10 WEED, Cu10 BAILEY, J263B

• Typical tests:

        - Tests for verifying nominal characteristics and overload
        - Phase to phase voltage
        - Phase current
        - Temperature
        - Electrical and mechanical power
        - Power factor and efficiency testing
        - Simulation of driving cycles based on Dynacar®

• Verification of operating characteristics
• Efficiency and power factor testing
• Thermal testing
• Driving cycle simulation
• Support for calibration and rapid inverter prototyping

Aimed at:

Companies that develop or want to develop traction system assemblies or components for electric vehicles:

    - Electric motors
    - Inverters
    - Electronic control units related to traction systems

TECNALIA

Bizkaia Technology Park, Astondo Bidea, Edificio 700, E-48160, Derio (Bizkaia)

Sector-Specific Testbeds:

- Power Electronics

- Decarbonization Technologies

Application sectors

• Automotive

Industrial plan

• IRABAZI · Automotive components