Multi‐scene upgrade and renovation method of existing park‐level integrated energy system based on comprehensive analysis

Abstract

Some of the existing park‐level integrated energy systems (PIESs) experience problems such as mismatch between energy supply and demand, high operation costs, and low renewable energy consumption capacity. To improve the energy supply level of the existing PIES, the multi‐scene upgrade and renovation method of the existing PIES based on comprehensive analysis is proposed. First, the physical model of the existing PIES for renovation is constructed, including expansion of existing equipment and newly added candidate equipment. Second, to determine the deficiencies, the current situation of the existing PIES is analysed based on the planning and operation data as well as indexes including economy, photovoltaic consumption capacity, and so on. On this basis, multiple renovation scenes are set up, and the upgrade and renovation model is constructed, assuming minimal investment, operation, and maintenance costs to be the objective function. Thereafter, the equipment allocation scheme of each scene is solved, for which comprehensive evaluation is performed. Finally, considering an existing PIES as an example, the weak energy storage and heating links are upgraded and renovated, effectively improving the performance of the existing PIES in reducing costs and carbon emissions, and improving energy utilisation efficiency.

Operation Optimization of an Integrated Energy Service Provider with Ancillary Service Provision

“…Existing publications about the IESP mainly focus on operation optimization [7,8], planning and renovation [9,10], integrated demand response (IDR) [11,12], and electricity energy market participation [13,14]. For the optimal operation of the RIES, in [7], a bidirectional flow model is established to show how the RIES enhances resilience in extreme conditions with the coordination of energy conversion and storage facilities, and a trilevel two-stage robust model is established to accommodate random outages; in [8], an operation optimization model is proposed considering the renewable energy consumption responsibility and carbon emission trading mechanism, so as to address the concern of renewable energy generation accommodation and emission reduction in the RIES operation.…”

“…For the optimal operation of the RIES, in [7], a bidirectional flow model is established to show how the RIES enhances resilience in extreme conditions with the coordination of energy conversion and storage facilities, and a trilevel two-stage robust model is established to accommodate random outages; in [8], an operation optimization model is proposed considering the renewable energy consumption responsibility and carbon emission trading mechanism, so as to address the concern of renewable energy generation accommodation and emission reduction in the RIES operation. For the optimal planning and renovation of the RIES, in [9], a multi-scene optimal planning and renovation method of a park-level RIES is proposed, which models the working status of the RIES and considers the costs of investment, operation, and maintenance in the planning optimization model; in [10], with the objective of minimizing investment costs and network losses, the optimal locations of integrated energy stations are determined by the kernel density of the annual energy consumption of building groups, and the distribution of energy networks is optimized by finding the shortest path with the A-star search algorithm. Regarding the IDR during IESP operation, in [11], a pricing strategy of a multi-energy provider using a Stackelberg game-based bi-level programming model is proposed, in which the IDR-based energy optimization can help residential users manage their multi-energy loads and reduce the expected energy costs; in [12], a bi-level bidding and multi-energy retail price formulation method is presented based on the unified clearing of electricity and natural gas for an IESP considering multi-energy demand elasticity, which fully exploits the potential of IDR resources in improving economic benefits.…”