DS5488 2-Channel High-Voltage Source Board

Compact board for simulating battery pack voltages in BMS testing

The DS5488 2-Channel High-Voltage Source Board is a compact SCALEXIO board for hardware-in-the-loop (HIL) testing of cutting-edge battery management systems (BMS). The dSPACE board enables cost-effective simulation of battery pack voltages, supporting system voltages of up to 1,500 V. During BMS testing, these voltages serve as input signals for the voltage sensor of the BMS. BMS developers and test engineers can use the board for a wide range of applications across different industries – from battery electric vehicles on land, at sea, and in the air to stationary storage systems.

The DS5488 consists of the DS5488H1 function board and the DS5488F1 auxiliary board.

While cell supervision circuits (CSCs) measure the voltages of the individual cells, the BMS itself also measures and monitors pack voltages. When it comes to HIL testing of a BMS, the HIL system must simulate these pack voltages and provide them to the voltage sensor of the BMS. Instead of using costly and bulky external power supply units for this, you can rely on the DS5488, offering seamless integration into any SCALEXIO Battery HIL system.

The DS5488 consists of the DS5488H1 2-Channel High-Voltage Source Function Board and the DS5488F1 2-Channel High-Voltage Source Auxiliary Board. Both boards can be effortlessly installed in the existing 19-inch subrack of the SCALEXIO Battery HIL system. It is also possible to operate the DS5488 together with other boards, e.g., the DS5482 4-Channel Cell Voltage Emulation Board, within a subrack. A dynamic, real-time-capable ASM battery model running on the HIL system ensures precise, time-synchronous signal generation across all boards and thus consistent simulation behavior for the entire BMS.

Each DS5488 provides two galvanically isolated high-voltage sources. The two high-voltage sources of a DS5488 can be connected in series, achieving a maximum system voltage of 1,500 V in a HIL system.

To sum up, the DS5488 is a cost-effective and compact high-voltage source for BMS testing, making optimum use of the installation space.

Technical Details

Parameter
Specification1)

Hardware structure
  • 2 high-voltage channels per board
  • Uses 2 slots of the slot unit

Output voltage range
  • Single channel: -14 ... +750 V
  • Channels connected in series: -28 ... +1500 V

Output voltage resolution2)
  • 16-bit

Output voltage accuracy2)3)
  • ±0.5% or ±200 mV (whichever is larger)

Output current
  • Up to ±25 mA4)
Isolation
  • 1,500 V between the channels and the environment
  • 1,500 V between the two board channels
Connection
  • IOCNET interface to the SCALEXIO real-time system

1) Preliminary data. For technical specifications, please contact dSPACE.

2) Applies to a single channel.

3) Laboratory conditions.

4) Specified load conditions must be observed.

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