Optimal day-ahead generation scheduling with independent slack bus loss sensitivity in Vietnam's wholesale electricity market | |
| Author | Nguyen Huy Phuoc |
| Call Number | AIT Thesis no.ET-17-13 |
| Subject(s) | Electric power systems--Vietnam Scheduling (Management) Markets--Computer simulation |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Energy |
| Publisher | Asian Institute of Technology |
| Abstract | Vietnam electricity market has very high growth rate in demand and currently in the re-regulation process to promote its efficiency. Finding an optimal generation scheduling to adapt to a new circumstance and smooth transition from a single buyer to wholesale market model is necessary. This thesis proposes a complete process of optimal day-ahead generation scheduling with independent slack bus loss sensitivity and equally average contract price allocation of vesting contracts to distribution companies (PCs) in Vietnam wholesale electricity market (VWEM). In the first stage, mixed integer linear programming (MIP) is used to optimally schedule day-ahead generation subject to hydro and thermal generation and network operating constraints, natural gas supply constraints, and hydro availability constraints. In the second stage, independent slack bus loss sensitivity factors are incorporated into optimal day-ahead generation re-scheduling subject to the same constraints by using linear programming (LP). Finally, after fairly allocating the total power loss to each generation using independent slack bus loss sensitivity factors, vesting contracts from Electricity of Vietnam (EVN) are properly allocated to all PCs such that the average contract prices of each PC are equal and the deviation of PCs hourly contract prices are minimized. This is to guarantee that PCs in VWEM have the same average contract price as in the single buyer model so that they can sell at the regulated uniform retail tariff. The generation scheduling output indicates that the proposed problem formulation can handle real size Vietnamese power system with a large number of constraints. Generation rescheduling in the second stage can effectively minimize the total electricity cost because of the total transmission loss reduction. This proposal can be efficiently and effectively implemented in the future VWEM. |
| Year | 2017 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Energy Technology (ET) |
| Chairperson(s) | Weerakorn Ongsakul |
| Examination Committee(s) | Singh, Jai Govind;Dhakal, Shobhakar |
| Scholarship Donor(s) | Electricity of Vietnam (EVN) |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2017 |