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Chinese Journal of Management Science ›› 2016, Vol. 24 ›› Issue (10): 10-21.doi: 10.16381/j.cnki.issn1003-207x.2016.10.002

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Coordination Mechanism of V2G Reserve Contract Based on B-S Option Pricing Model

HUANG Shou-jun1, YANG Jun1,2, CHEN Qi-an1,2   

  1. 1. School of Economics and Business Administration, Chongqing University, Chongqing 400030, China;
    2. Academy of Energy Technologic Economics, Chongqing University, Chongqing 400030, China
  • Received:2015-06-17 Revised:2016-02-19 Online:2016-10-20 Published:2016-12-27

Abstract: Based on the risk-neutral transaction characteristics of V2G reserve market and common contract price mechanism of "buying price floor protected,price fluctuation in line with market conditions" in practice,the electric vehicle user's reserved electricity decision models before and after the grid corporation implementing option to hedge are constructed. The feedback equilibrium strategies and optimal benefits in Stackelberg game and cooperative game are comparatively analyzed. The results indicate that only simply adopting protective contract price mechanism makes the grid corporation undertake full transaction risk in V2G reserve market,thereby cannot prevent opportunistic behavior when the market quotation is not good. On this basis,the grid corporation chooses to purchase option for avoiding the risks brought by V2G market price fluctuations,but the equilibrium profit in decentralized decision is less than the optimal profit in integrated decision. For this,the perfect coordination of the cooperation system,and the Pareto improvement of both channel sides' expected profits are further achieved by introducing the contract mechanism of "B-S option pricing,reservation collaboration and margin". The analytical relationships among the equilibrium reservation collaboration coefficient of V2G reserve,transaction margin and contract electricity price are developed,and the results of numerical analysis verify the feasibility of the proposed models and the theoretical analysis.

Key words: V2G reserve, contract price mechanism, reserved electricity, B-S option pricing model, contract coordination

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