A Dynamic Simulation Framework for Integrated Energy System

The emergence of the Integrated energy system (IES) reflects the trend of the energy supply systems, which is conductive to achieving sustainable development. Dynamic simulation can be regarded as a digital twin of the IES, and is applied to generate data and simulate the operations, etc. Thus, it is a significantly meaningful work to implement related studies. In this paper, considering the multi-time scale characteristics of energy categories in the IES, a cooperative dynamic simulation framework based on multiple platforms is proposed, where APROS is applied for the slow-time scale simulation while RT-Lab is for the fast-time one, and the multiple platforms communicate with each other via OPC UA protocol. Under this framework, a dynamic simulation application case of an industrial IES, involving gas, heat and power networks, is studied. Furthermore, an operation strategy optimization is conducted from the aspects of economy, efficiency and environment for a typical winter energy supply scenario for taking the time-of-use energy prices and integrating renewable energy. The experimental results demonstrate that the framework proposed in this study is effective, which can provide technical support for IES researches.