Multi-time scale identification for multi-energy system.

Multi-energy systems (MES) are under development for a variety of benefits like energy conservation and emission reduction. Coupling components like CHP and CCHP transfer disturbance from one system to another system, thus, the multi-energy system has multi-time scale characteristic and broad bandwidth, which results in problem in dynamic modeling. A multi-time identification method is presented to solve the problem. Identification of a CHP unit with multi-time scale characteristics is presented as case study to verify the method, and simulation results show the effectiveness of the proposed method.