Hierarchical Game for Coupled Power System with Energy Sharing and Transportation System
CoRR(2023)
摘要
The wide deployment of distributed renewable energy sources and electric
vehicles can help mitigate climate crisis. This necessitates new business
models in the power sector to hedge against uncertainties while imposing a
strong coupling between the connected power and transportation networks. To
address these challenges, this paper first proposes an energy sharing mechanism
considering AC power network constraints to encourage local energy exchange in
the power system. Under the proposed mechanism, all prosumers play a
generalized Nash game. We prove that the energy sharing equilibrium exists and
is socially optimal. Furthermore, a hierarchical game is built to characterize
the interactions both inside and between the power and transportation systems.
Externally, the two systems are engaged in a generalized Nash game because
traffic flows serve as electric demands by charging behaviors, and each driver
pays the energy sharing price for charging. The hierarchical game is then
converted into a mixed-integer linear program (MILP) with the help of
optimality conditions and linearization techniques. Numerical experiments
validate the theoretical results and show the mutual impact between the two
systems.
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关键词
coupled power system,energy sharing,power system,game
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