แนวคิดหลัก
Integrating Flexible AC Transmission System (FACTS) devices, such as Thyristor Controlled Series Compensators (TCSCs), into transmission expansion planning can lead to lower investment and operational costs, and improve the long-term reliability of the grid.
บทคัดย่อ
The paper proposes a new mixed-integer linear programming (MILP) formulation for Transmission Network Expansion Planning (TNEP) with FACTS devices (TNEP+FACTS). The key contributions are:
- The formulation directly represents the change in power flow induced by individual FACTS devices, rather than using virtual angle shifts as in previous approaches.
- The proposed formulation uses an extended formulation and facet-defining constraints, which are stronger than big-M constraints typically used in the literature.
- Numerical experiments on a synthetic model of the Texas system with high renewable penetration demonstrate the computational superiority of the proposed approach, achieving a 4x speedup over state-of-the-art formulations.
- The results highlight the potential of FACTS devices to mitigate congestion, reduce load shedding, and decrease renewable generation curtailment.
สถิติ
The total costs (including penalties) for the baseline TNEP formulation are $296.20M, while the TNEP+FACTS formulation reduces this to $288.91M, a 2.5% decrease.
The TNEP+FACTS formulation leads to a 7.4% reduction in unserved energy (from 5,322 MWh to 4,929 MWh) and a 12.5% reduction in curtailed renewable energy (from 8,465 MWh to 7,408 MWh).
คำพูด
"Integrating FACTS to TNEP facilitates the transfer of renewable capacity to Texas's major urban centers."
"By collectively analyzing the figures, it becomes evident that integrating FACTS to TNEP facilitates the transfer of renewable capacity to Texas's major urban centers."