Sharing Mechanism of Distributed Energy Resources for a Community Micro-Grid

Abstract

Owing to the increase in electricity demand and awareness regarding the environment the development and promotion of distributed energy resources (DERs) have increasingly attracted attention However the high cost of DERs reduces the willingness of users wanting to use them To encourage microgrid operators to invest in and apply the resources our thesis proposes a sharing mechanism of DERs for a community microgrid The operators provide the resources to users by long-term planning and a sharing economy Through the proposal mentioned above the operators can profit by renting the resources By contrast considering the economy of scale users can save on electricity fees by scheduling and managing of energy demand and the resources at lower cost In this thesis a bidding process considering the finite supply between an operator and users is simulated by adjusting renting prices through adaptive moment estimation (ADAM) In terms of users linear programming (LP) is utilized to decide the optimal capacity of DERs and annual scheduling results To verify the effectiveness of our proposed service annual real data is utilized A sensitivity analysis is also conducted for different amounts of DERs to demonstrate the economic benefits The results demonstrate that our proposed method not only increases the operator’s profit but also reduces users’ energy cost Furthermore the operator can invest more capacity of photovoltaic (PV) and energy storage system (ESS) to become more profit owing to the economy of scale Finally owing to the decrease in investment cost in the future the operator can still be profitable with long-term planning and investment and users can rent PV and ESS capacity to meet their energy demand with sufficient supply

Date of Award	2020
Original language	English
Supervisor	Hong-Tzer Yang (Supervisor)