Passivity-Based Decentralized Control for Discrete-Time Large-Scale Systems

Passivity theory has recently contributed to developing decentralized control schemes for large-scale systems. Many passivity-based are designed in continuous-time. It is well-known, however, that the passivity properties of continuous-time systems may be lost under discretization. In this letter, we present a novel stabilizing scheme by ensuring discrete-time directly and thus avoiding issue preservation. The controller synthesized locally solving semidefinite program offline each subsystem fashion. This comprises local conditions corresponding passive. ensured with respect virtual output which different from actual output. also all subsystems implies asymptotic stability whole system. performance proposed evaluated on case study DC microgrids.