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Nuvation Energy High-Voltage Battery Management System Architecture

Nuvation Energy3:23

Transcription

[Music] Hi, my name is Alex Ramji, and I manage the development of our energy solutions here at Nuvation Energy. Nuvation offers low-voltage and high-voltage battery management systems, as well as energy controllers. But today, we're going to focus on the high-voltage battery management system, the architecture, and how that fits into stationary energy storage for commercial and industrial applications and grid-tied applications.

To start off, we're going to look at our cell-level BMS, which is our cell interface. So I've actually got an example of one here connected to this series of battery modules. The cell interface is responsible for getting the cell and temperature data out of the batteries. So we've got these cable harnesses here for the battery cells, as well as for the temperature sensors. The CI is then getting that information as well as responsible for balancing the cells during charging.

Then, for a battery stack, we would then have multiple of these cell interfaces daisy-chained together into a scalable architecture. So all that information then feeds into our stack switch gear. This has some additional battery management modules which are getting that information and controlling things like contactors and current measurement. It's also got fuses and other safety functions. We've got connections that go to the battery stack, as well as connections that go to the rest of the system, like a DC bus or power conversion system. We've then also got some additional fun features like e-stop input, manual switch, as well as fan control.

Then, when you've got your multiple battery stacks with your stack switch gear, that all then feeds into our next product, which is the battery control panel. This is where all the stacks' information—our information—is aggregated by our multi-stack controller. We'll get things like operator interface through the display here, which will allow you to see the status and details about your battery system. Um, and then a bunch of other auxiliary components like power supplies and switches to make it a lot more convenient for integration. We then can also offer additional functionality such as energy controllers and custom algorithms for customers who are looking for that. In that case, we have a similar form factor, but we call it the end controller EMS.

That summarizes our product line. All of our products can handle up to 1250 volts DC, as well as up to 36 battery stacks in parallel. We currently have UL 1973 recognition on our battery management system modules and are currently in process of getting the same for our stack switch gear. We also then offer engineering services to customers looking for support during their integration and installations.

Thanks for tuning in. We'll catch you next time.