Frequency-Regulating Reserve Constrained Unit Commitment for an Isolated Power System

被引：31

作者：

Chang, Gary W. ^{[1
]}

Chuang, Ching-Sheng ^{[1
]}

Lu, Tai-Ken ^{[2
]}

Wu, Ching-Chung ^{[3
]}

机构：

[1] Natl Chung Cheng Univ, Dept Elect Engn, Chiayi 621, Taiwan

[2] Natl Taiwan Ocean Univ, Dept Elect Engn, Keelung, Taiwan

[3] Taiwan Power Co, Syst Operat Dept, Taipei, Taiwan

来源：

IEEE TRANSACTIONS ON POWER SYSTEMS | 2013年 / 28卷 / 02期

关键词：

Frequency-regulating reserve; load-frequency sensitivity index; mixed integer linear programming; unit commitment; LAGRANGIAN-RELAXATION; THERMAL UNIT; METHODOLOGY;

D O I：

10.1109/TPWRS.2012.2208126

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The purpose of unit commitment (UC) for electric utilities is to determine the optimal thermal unit on/off statuses and their MW generations over the scheduled time horizon. The UC problem is formulated to minimize the total generation cost, while the load demand, reserve requirements, and unit constraints are satisfied. Among the UC constraints, an adequate provision of reserve is important to ensure the security of the power system and the frequency-regulating reserve is essential to bring the system frequency back to acceptable level following the loss of a sizable online unit within seconds. In this paper, the authors present and solve a mixed-integer linear programming (MILP)-based UC problem including the frequency-regulating reserve (FRR) constraints to determine the optimal FRR requirements and unit MW schedules for an isolated power system. Simulation results are then compared with those obtained by Lagrangian relaxation-based approach and by the current Taipower operation practice. It is observed that favorable reserve and unit MW schedules are obtained by the proposed method while the system security is maintained.

引用

页码：578 / 586

页数：9

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