A Best Matching Protocol for Collaborative Energy Distribution Networks

 

Ehsan Jahanpour and Hoo Sang Ko

Industrial and Manufacturing Engineering, Southern Illinois University Edwardsville

 

 

In a sustainable wind energy distribution network, energy price is another parameter that influences the providers¡¯ and communities¡¯ collaboration in the network in addition to generation and distribution constraints. General frameworks have been developed to model the electricity price in an energy market [1-3]. For example, Botterud et al. [3] proposed a model for optimal trading of wind power in the market based on one-day-ahead forecasts and real-time demands. The Best Matching Protocol (BMP) intends to define the most efficient bidding price and matches the best energy providers in order to maximize the long-term profit of the energy providers (both roles A and B) in the network. Suppose that a demand set  to be received by community , where  is the demand that has been assigned to deliver to the community  from provider  on one day ahead of day . Other notations used in the model include:

 

       expected demand from community  on day

        electricity price sold to community  by its corresponding provider on day

       electricity generation cost of provider  on day

        electricity amount supplied by provider  on day

     excessive electricity of provider  on day  

   electricity price bid offered from provider  to provider  one day ahead of day

     damage cost for not being able to fulfill shared capacity paid by provider  on day

     real-rime electricity supplied by provider  to provider  on day

   real-time electricity price from provider  to provider  on day

        penalty cost for the lost demand paid by provider  day

       holding cost of the excessive electricity stored by provider  day

 

Based on the shared information between providers and their expected profit, BMP will match the shared demand with the shared capacity so that the demand can be fulfilled and also the provider¡¯s profit can be maximized. In other words, BMP will function such that the profit of role A and role B providers, shown in Equations (1) and (2), can be maximized. The provider roles are dynamic so a provider could be of role A on a day and of role B on another day.

 

(1)

                                                                       

(2)

 

The BMP will match the best pair (a Î A, b Î B) by solving the optimization problem to deal with the overall waste in the network of wind farms. This BMP must work in conjunction with the Demand and Capacity Sharing Protocol (DCSP) [4] for collaboration in the distribution network.

 

[1]         A. Botterud, Z. Zhou, J. Wang, R. J. Bessa, H. Keko, J. Sumaili, and V. Miranda, "Wind power trading under uncertainty in LMP markets," IEEE Transactions on Power Systems, vol. 27, no. 2, pp. 894-903, 2012.

[2]         E. Litvinov, "Design and operation of the locational marginal prices-based electricity markets," Generation, Transmission & Distribution, vol. 4, no. 2, pp. 315-323, 2010.

[3]         J. C. Smith, S. Beuning, H. Durrwachter, and E. Ela, "Impact of variable renewable energy on US electricity markets," in Proc. of IEEE Power and Energy Society General Meeting, Minneapolis, MN, 2010.

[4]         Yoon, S.W. and Nof, S.Y. (2010). Demand and capacity sharing decisions and protocols in a collaborative network of enterprises. Decision Support Systems, 49(4), 442-450.