Abstract
The integrated energy system (IES) is an important energy supply method for mitigating the energy crisis. A station-and-network–coordinated planning method for the IES, which considers the integrated demand responses (IDRs) of flexible loads, electric vehicles, and energy storage is proposed in this work. First, based on load substitution at the user side, an energy-station model considering the IDR is established. Then, based on the characteristics of the energy network, a collaborative planning model is established for the energy station and energy network of the IES, considering the comprehensive system investment, operation and maintenance, and clean energy shortage penalty costs, to minimize the total cost. This can help optimize the locations of the power lines and natural gas pipelines and the capacities of the equipment in an energy station. Finally, simulations are performed to demonstrate that the proposed planning method can help delay or reduce the construction of new lines and energy-station equipment, thereby reducing the investment required and improving the planning economics of the IES.
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