The design affords a whole answer for high-voltage battery administration, that includes monitoring, energy conversion, and security options for ESS. Learn extra!
The high-voltage reference design from Texas Devices (TI) affords a complete answer for engineers centered on exact monitoring and management inside Battery Power Storage Techniques (BESS). Designed to deal with present, insulation impedance, and battery well being in lithium-ion (Li-ion) or LiFePO4 battery racks, this design is good to be used throughout residential, business, industrial, and grid-based purposes. The system can handle as much as 4 high-voltage bus inputs, measure shunt present, monitor temperature, and monitor insulation impedance as much as 1500V—guaranteeing secure and dependable operation in complicated battery rack setups.
Key to the design’s versatility, it contains each onboard Serial Peripheral Interface (SPI) communication and an off-board daisy-chain interface, permitting engineers to implement stackable, cost-effective connections with strengthened isolation. The BQ79731-Q1 gadget performs a central position, enabling exact monitoring of important battery system parameters and boosting system well being and effectivity. The design additionally incorporates the TPSI2140-Q1 and a reed relay in a high-voltage, side-grounded, unbalanced bridge configuration to supply correct insulation impedance measurements.
For energy conversion, the design makes use of the SN6507 gadget and a transformer to effectively step down 24V from the low-voltage aspect to 12V on the high-voltage aspect, guaranteeing easy operation throughout totally different voltage ranges. The system adheres to rigorous 1500V strengthened insulation requirements, assembly UL1973 and IEC60664-1-2020 necessities by means of isolation elements just like the ISO7841DWWR digital isolator, transformers, and resistor ladders.
The design integrates correct monitoring, strong management, and dependable security options, that are essential for assembly the demanding necessities of recent grid and industrial vitality storage techniques. Engineers can use built-in present sensors to observe very important battery parameters akin to voltage, present, insulation ranges, and state of cost. Extra pins facilitate temperature measurements and relay management, enabling speedy administration of overcurrent situations and simple communication with the primary controller.
A solid-state relay acts as a high-tech change, effectively managing excessive voltages with no need an exterior energy supply, and is designed to deal with voltage surges and difficult situations. A quad-channel digital isolator gives important electrical isolation between system elements, enhancing security whereas permitting knowledge alerts to move by means of. The high-frequency push-pull transformer driver ensures a compact, secure energy provide, minimizing electrical interference and providing sturdiness throughout a large temperature vary. Moreover, a voltage regulator maintains secure voltage with minimal energy consumption, guaranteeing steady operation for important units akin to fireplace alarms or good meters whereas defending quick circuits.
The reference design gives engineers with an answer for growing high-voltage battery administration techniques for industrial and grid-based vitality storage purposes. TI has examined this reference design. It comes with a invoice of supplies (BOM), schematics, meeting drawing, printed circuit board (PCB) structure, and extra. The corporate’s web site has extra knowledge in regards to the reference design. To learn extra about this reference design, click on right here.
