Dispatch of vehicle-to-grid battery storage using an analytic hierarchy process

Dispatch of vehicle-to-grid battery storage using an analytic hierarchy process

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The number of electric vehicles (EVs) is expected to increase significantly in the future to combat air pollution and reduce reliance on fossil fuels. This will impact the power system. However, with appropriate charging and discharging through vehicle-to-grid (V2G) operation, EV batteries could replace some stationary energy storage to provide support for the power system and benefit EV owners. This raises the questions of when and how EV battery storage should be dispatched, taking into account both vehicle users' and power system requirements and priorities, as well as the constraints of the battery system. This chapter proposes a decentralized dispatch strategy based on the analytic hierarchy process (AHP) taking into account the relative importance of the different criteria such as cost, battery state of charge (SOC), power system contingency and load levelling. The proposed ARP -based dispatch strategy is tested on an IEEE Reliability Test System (RTS) with different EV numbers and capacities to investigate the efficacy of such an approach. The simulation results demonstrate the feasibility and benefits of the strategy.

Chapter Contents:

  • 8.1 Introduction
  • 8.2 Battery characteristics
  • 8.3 Dispatch strategy of electric vehicle battery storage
  • 8.3.1 AHP hierarchy process
  • 8.3.2 Determination of the dispatch action
  • 8.4 Simulation test
  • 8.5 Sensitivity analysis
  • 8.6 Conclusions
  • References

Inspec keywords: battery powered vehicles; energy storage; electric vehicle charging; vehicle-to-grid; power system reliability; air pollution control; analytic hierarchy process; power system economics; battery storage plants; load dispatching

Other keywords: analytic hierarchy process; RTS; charging operation; V2G operation; EV battery storage; air pollution reduction; stationary energy storage; electric vehicles; power system; vehicle-to-grid battery storage dispatch; discharging operation; AHP; decentralized dispatch strategy; SOC; IEEE reliability test system

Subjects: Power system management, operation and economics; General transportation (energy utilisation); Other energy storage; Reliability; Secondary cells; Transportation

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