A linear programming method for the scheduling of pumped-storage units with oscillatory stability constraints

Journal Article · Fri Nov 01 04:00:00 EST 1996 · IEEE Transactions on Power Systems

DOI:https://doi.org/10.1109/59.544631· OSTI ID:435354

Jeng, L H; Hsu, Y Y ^[1]; Chang, B S; Chen, K K ^[2]

---

1. National Taiwan Univ., Taipei (Taiwan, Province of China). Dept. of Electrical Engineering
2. Taiwan Power Co., Taipei (Taiwan, Province of China). System Operation Dept.

Scheduling of pumped-storage units at Taiwan Power Company (TPC) is investigated in this work. In addition to economic considerations, oscillatory stability of the system as affected by the operation of pumped-storage units is of major concern. To achieve a secure as well as economical dispatching schedule for the pumped-storage units, differential dynamic programming is first employed to reach a preliminary schedule in which total fuel cost of the thermal units over the study period is minimized. Oscillatory stability analysis of the system under the preliminary schedule is then performed by computing the eigenvalues and eigenvectors for all electromechanical modes. Sensitivities of the eigenvalues for the poorly-damped inter-area mode with respect to individual generator outputs are evaluated. Then a systematic approach based on linear programming is presented to refine the preliminary schedule in order to improve the damping for the inter-area mode. The effectiveness of the proposed approach is demonstrated by short term operational planning of Taiwan power system.

• Sponsoring Organization: National Science Council, Taipei (Taiwan, Province of China)
• OSTI ID: 435354
• Report Number(s): CONF-960111--
• Journal Information: IEEE Transactions on Power Systems, Journal Name: IEEE Transactions on Power Systems Journal Issue: 4 Vol. 11; ISSN ITPSEG; ISSN 0885-8950
• Country of Publication: United States
• Language: English

Related Subjects

13 HYDRO ENERGY
20 FOSSIL-FUELED POWER PLANTS
LINEAR PROGRAMMING
OPERATION
POWER SYSTEMS
PUMPED STORAGE POWER PLANTS
SCHEDULES
STABILITY