Using of the Digital Communication Interface CAN to Provide Parallel Operation of Converters

Authors: Klassen S. V., Klassen T. S., Luft S. V., Haritonov S. A., Volkov A. G.

Annotation: This paper presents a way of using the CAN digital communication interface as part of the master-slave method to ensure a uniform power distribution between the modules connected in parallel. The converter's own current is encrypted into the message ID that goes through the arbitration procedure of the device's access to the network. As a result, the message containing the data of the maximum current of the converters remains on the bus. The stability of the system has been proven, and experiments with a simulation model and a physical prototype have been carried out. The experiment results confirm the system stability and the operability of the method considered for selecting the master converter using the arbitration procedure, which is intrinsic to the CAN communication interface.

Keywords: digital communication interface, parallel operation, stability, modularity