Project
1. First step is to determine number of cells required for the battery pack
- Power requirement: 150 kW
- Voltage per cell: 3.6V
- Desired pack voltage: 120V
Number of cells required = (Desired pack voltage) / (Voltage per cell) = 120V / 3.6V = 33.33 cells -- 34 cells
I can consider all cells connected in Series here.
In BMS topology, I would include the following components :
- Cell monitoring unit
- Current and voltage sensing
- balancing method (active/passive)
- communication protocol - preferrably CAN
- Fail safe method - SCG (Short circuit to Ground), SCS (Short circuit to Source), open circuit, sensor faliure and fault detection
2. For question 2, please refer to the slx file and scope results attached