Abstract
According to the impacts of unit maintenance on the system operation costs, a novel unit maintenance scheduling (UMS) model is proposed in a competitive environment. Based on the system reliability assessment, the minimized total system costs over the entire horizon is taken as the objective, and the constraints of the system loss of load probability (LOLP), power flow and maintenance outage are considered completely. Compared with the existing models, the proposed scheme takes the influence of bilateral contracts and energy market as well as random failures of generating units and transmission lines into consideration. Additionally, the system reliability index is converted into the economic index as a part of the objective, and evaluated by Monte Carlo approach. The simulation results illustrate that the present model ensures the system LOLP to be kept under the pre-set tolerance value with a steady outage planning cost.
| Original language | English |
|---|---|
| Pages (from-to) | 80-84+106 |
| Journal | Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University |
| Volume | 43 |
| Issue number | 8 |
| State | Published - Aug 2009 |
Keywords
- Energy-selling loss
- Production cost
- Reliability
- System operating cost
- Unit maintenance scheduling