Akuston matalajännitteisen akunhallintajärjestelmän integrointi invertterin korkeajännitteiseen järjestelmään CAN-väyläyhdyskäytävän avulla
Vasylenko, Igor (2026)
2026
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-202601281938
https://urn.fi/URN:NBN:fi:amk-202601281938
Tiivistelmä
This thesis was conducted as an independent development project aiming to solve a compatibility issue between a low-voltage battery management system and a high-voltage hybrid inverter using a CAN-based communication protocol. The study addresses a practical issue where devices from different manufacturers cannot communicate directly due to discrepancies in protocol implementations and data interpretation.
The objective of the thesis was to design and implement a CAN bus gateway that enables the integration of a JK-BMS with an inverter using a Pylontech-compatible CAN protocol. The solution was required to ensure safe and reliable system operation without modifying the inverter's original software or protection mechanisms.
The project progressed from protocol analysis and reverse engineering to software development and practical testing. During development, significant differences were identified in how manufacturers process measurement data, particularly regarding current scaling and the interpretation of limit values. These challenges were addressed by implementing intelligent protocol conversion logic within the gateway.
In conclusion, a functional prototype was developed and successfully evaluated in a real hardware environment. The results demonstrate that the proposed solution enables the use of a cost-effective third-party battery system in a demanding inverter application without compromising safety or usability.
The objective of the thesis was to design and implement a CAN bus gateway that enables the integration of a JK-BMS with an inverter using a Pylontech-compatible CAN protocol. The solution was required to ensure safe and reliable system operation without modifying the inverter's original software or protection mechanisms.
The project progressed from protocol analysis and reverse engineering to software development and practical testing. During development, significant differences were identified in how manufacturers process measurement data, particularly regarding current scaling and the interpretation of limit values. These challenges were addressed by implementing intelligent protocol conversion logic within the gateway.
In conclusion, a functional prototype was developed and successfully evaluated in a real hardware environment. The results demonstrate that the proposed solution enables the use of a cost-effective third-party battery system in a demanding inverter application without compromising safety or usability.