Systems up to 68 kW per channel
The Scienlab Battery Test System – Module Level is an electric system which is designed to provide sink and source for battery modules for automotive and industrial applications. Figure 1. Battery test laboratory managed by PathWave Lab Operations for Battery Test.
High performance for all your applications
With the interconnection of battery cells to modules further requirements are necessary on your test equipment. Higher tensions and an increase in electrical power is necessary to:
- Record several temperatures to investigate the reciprocal electrical and thermal influence of the cells.
- Check the mechanical connections and the performance of the module.
- Communicate with the Battery Management System (BMS).
Highlights
- Efficient and cost-effective operation because of recovery capabilities even for endurance tests with many channels.
- Module is useable as a cell test system with a relatively constant measurement precision for testing battery cells with up to 6 V (optional).
- Synchronize BMS values as variable or as switch-off criteria directly in the test sequence.
- Direct control of the output source via the BMS
Control unit and power amplifier
- •Test Bench Control System (TBCS) – Linux real-time PC
- Embedded system for autonomous sequence control
- Measurement data acquisition
- Communication interface: Ethernet
Data acquisition
- 4-wire measurement
- Sample Rate: max. 20 kHz
- Resolution: 32 bit
- 3x temperature input: PT100 4-wire measurement, -50 to +130 °C, ±1 K per test channel
Control of external components:
- e.g. temperature chamber, conditioning unit (Ethernet protocol required)
- Additional protocol implementation possible if component not yet supported
Intrinsic safety
- Intrinsically safe against overheating, overcapacity, short circuit and idling.
- Protection against reverse polarity by checking the polarity before output contactors can be closed.
- No hardware protection against reverse polarity.
- Monitoring of all internal voltages, currents and temperatures.
- DC output contactors capable to disconnect DUT at full load current.
- Discharge of all internal high voltage sources upon emergency OFF.
Manual parallel operation
- Manual parallel operation of up to six output stages possible.
- Output contacts including sense circuit have to be interconnected by the customer.
- Director/follower definition via control software Scienlab Energy Storage Discover (ESD).
Second-source mode
The second-source mode makes it possible to parameterize two channels of a battery test system, which
is connected to a device under test (DUT), from a test program, to execute the test synchronously, and to
save the recorded measurements in a common test report.
Each high-voltage connection can be controlled separately and synchronously with each other. Apply
individual current or power profiles in four-wheel drive mode.
Note: The second-source mode is an add-on, which must first be activated. Only available for systems
with 200 V and 300 V output voltage.
Safety
- Emergency stop switch/main switch (red/yellow) for all-pole disconnection
- Fast stop push button (black)
- Door hinge mounted on the right side
- Door handles: Comfort handles with safety lock
- Parametrizable limits for the protection of the DUT
- Insulation monitoring device1
(Bender ISOMETER® IR425-D4-1)
- Signal light with magnetic mounting
- Red: Error; yellow: Active, green: Ready
