Energy-Circuit-Based Integrated Energy Management System: Theory, Implementation, and Application

Integrated energy systems (IESs), in which various flows are interconnected and coordinated to release potential flexibility for more efficient secure operation, have drawn increasing attention recent years. In this article, an integrated management system (IEMS) that performs online analysis optimization on coupling IES is comprehensively introduced. From the theory perspective, circuit method (ECM) models natural gas networks heating frequency domain discussed. This extends electric modeling of power IESs enables IEMS manage large-scale IESs. implementation architecture design function development presented. Tutorial examples with illustrative case studies provided demonstrate its functions dynamic state estimation, flow analysis, security assessment control, optimal flow. application real-world engineering demonstrations apply IEMSs managing building-, park-, city-scale reported. The economic environmental benefits obtained these demonstration projects indicate has broad prospects a low/zero-carbon future system.