CHIL Testbed of Consensus Control-Based Battery Energy Storage Systems

Consensus control has been proposed by our prior research to operate multiple battery energy storage systems (BESS). The objective of this paper is to validate the performance of consensus control using a controller-hardware-in-the-loop (CHIL) testbed. This paper describes the system topology and the setup process of this testbed. The testbed emulates a microgrid with three parallel BESS connected to the IEEE-9 bus system. The circuit part is simulated in real-time simulator while the control systems for BESS are implemented in three FPGA-based controllers. Using this testbed, the consensus control was tested under both of grid-connected mode and autonomous mode.