Title: Optimal Scheduling of Multi-Energy Systems with Flexible Electrical and Thermal Loads,
Abstract: This paper proposes a detailed optimal scheduling model of an exemplar
multi-energy system comprising combined cycle power plants (CCPPs), battery
energy storage systems, renewable energy sources, boilers, thermal energy
storage systems,electric loads and thermal loads. The proposed model considers
the detailed start-up and shutdown power trajectories of the gas turbines,
steam turbines and boilers. Furthermore, a practical,multi-energy load
management scheme is proposed within the framework of the optimal scheduling
problem. The proposed load management scheme utilizes the flexibility offered
by system components such as flexible electrical pump loads, electrical
interruptible loads and a flexible thermal load to reduce the overall energy
cost of the system. The efficacy of the proposed model in reducing the energy
cost of the system is demonstrated in the context of a day-ahead scheduling
problem using four illustrative scenarios.