Multi-Stack System Architecture - Nuvation Energy S801 Product Manual

3.1. Multi-Stack System Architecture

A typical multi-stack system, equipped with Nuvation Energy's suite of BMS products, is illustrated in
Figure 2. There is a hierarchy of battery management involved, each product fulfilling its role at a
different level:
▪
At the cell level, a Nuvation Energy Cell Interface module measures voltage/temperature and
balances cells as required.
▪
At the stack level, a Nuvation Energy Stack Switchgear unit measures current and
connects/disconnects its stack as required, as well as incorporates other stack safety features.
Battery safety is handled at the stack level.
▪
At the system level, a Nuvation Energy Multi-Stack Controller unit manages all stacks as described
above.
For a given stack, the daisy-chained Cell Interface modules report data to and receive direction from
the Stack Switchgear. In turn, the Stack Switchgear reports data to and receives direction from the
Multi-Stack Controller. Here, a unified view and central control of the multi-stack system is provided
to the user as well as any external devices.
Nuvation Energy Cell Interface modules and Nuvation Energy Stack Switchgear units

are sold separately. Datasheets, along with product manuals, are available online at
https://www.nuvationenergy.com/technical-resources.
Document ID: NE-PM-004
Figure 2. Multi-Stack Controller system diagram
Nuvation Energy Multi-Stack Controller - Product Manual
5 Rev 2.0, 2022-05-18
Curie Update 3