| Title |
Calculating the Benefit of Distributed Combined Heat Power Generators from Avoiding a Transmission Expansion Cost by Solving a Mixed Integer Linear Programming |
| Authors |
권욱현(Wook Hyun Kwon) ; 박용기(Yong-Gi Park) ; 노재형(Jae Hyung Roh) ; 박종배(Jong-Bae Park) ; 이두희(Duehee Lee) |
| DOI |
http://doi.org/10.5370/KIEE.2019.68.4.513 |
| Keywords |
Mixed integer programming ; Transmission expansion planning ; Distributed generation ; Optimal power flow ; Linear programming ; Combined heat power generator |
| Abstract |
We calculate the benefit of distributed combined heat power generators from avoiding a transmission expansion cost by building distributed generators near electricity demand centers. We determine a transmission expansion plan by solving a mixed integer linear problem, where we modify capacities of existing transmission lines and build new transmission lines. We calculate the benefit by comparing the sum of generation and transmission expansion costs with or without distributed generators through two simulation frames. In the first frame, for the current demand, we substitute existing distributed generators for non-distributed generators and measure an additional cost to balance the generation and demand. In the second frame, for increased future demand, we compare the cost to invest only in distributed generators to the cost to invest only in non-distributed generators. As a result, we show that the distributed generators have at least 5.8 won/kWh of the benefit from avoiding the transmission expansion cost. |