Decentralized load frequency control in deregulated environments

详细信息	查看全文 | 推荐本文 |

• 作者：Wen Tan^a ; ^{wtan@ieee.org} ; Hongxia Zhang^b ; Mei Yu^a
• 关键词：Load frequency control (LFC) ; Decentralized control ; Deregulated power systems ; Internal model control (IMC) ; PID controller
• 刊名：International Journal of Electrical Power and Energy Systems
• 出版年：2012
• 期刊代码：77_01420615
• 类别：et
• 出版时间：October, 2012
• 卷：41
• 期：1
• 页码：16-26
• 文件大小：721 K

摘要

Decentralized load frequency control (LFC) problem for multi-area power systems in deregulated environments is studied in this paper. A decentralized PID tuning method is proposed by assuming that the tie-line power flows are disconnected. The general transfer function model of LFC for decentralized control design of deregulated power systems is derived first, and then an IMC-PID method is used to design the local load frequency controllers. A method to analyze the stability of the decentralized LFC for conventional environments is also extended to the deregulated case. The proposed method is tested on a four-area power system under various operating conditions. Simulation results show that the proposed design method is simple to follow, can achieve good performance, and results in implementable PID controllers.