| Title |
Generator Scheduling Methods for Improving Fuel Efficiency in Electric Shipboard Power System Using Load Forecasting |
| Authors |
정범희(Beom-Hee Jeong) ; 김지안(Jian Kim) ; 심재성(Jae-Sung Sim) ; 정일엽(Il-Yop Chung) |
| DOI |
https://doi.org/10.5370/KIEE.2024.73.4.671 |
| Keywords |
Electirc Propulsion Ship; Load Forecasting; Unit Commitment; Economic Dispatch; Generator Cost Function; Generator Scheduling |
| Abstract |
In this paper, we propose generator scheduling method using load forecasting to improve the economic efficiency in electric propulsion ship. For efficient generator scheduling, we derive generator cost function using the generator specific fuel consumption (SFC) curves. Next, we classify the ship load into three categories such as propulsion load, service load, and pulse load. According to the load categories, we define the forecasting methods that are suitable for the load characteristics. Then, using the load forecasting results, the proposed generator scheduling algorithms determine the generator unit commitment to prevent repeated turn-on-and-off operations of the specific generators and calculate the generator economic dispatch using the generator fuel cost function. Through simulation case studies, we perform generator scheduling based on various combinations of different sizes of generators and ship operation scenarios. Based on the generator scheduling results, we calculate the total fuel cost and start-up cost, and we analysis an economic efficiency by comparing traditional generator scheduling and proposed generator scheduling method.
We also analyze economic efficiency according to generator configuration in electric propulsion ship |