Open AccessSliding mode load frequency control for multi‐area time‐delay power system with wind power integration
Author(s) -
Mi Yang,
Hao Xuezhi,
Liu Yongjuan,
Fu Yang,
Wang Chengshan,
Wang Peng,
Loh Poh Chiang
Publication year - 2017
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2017.0600
Subject(s) - control theory (sociology) , electric power system , wind power , automatic frequency control , controller (irrigation) , power control , frequency deviation , power (physics) , computer science , engineering , control (management) , electrical engineering , telecommunications , physics , quantum mechanics , artificial intelligence , agronomy , biology
The interconnected time‐delay power system has become an important issue for the open communication network. Meanwhile, due to the output power fluctuation of integrated wind energy, load frequency control (LFC) for power system with variable sources and loads has become more complicated. The novel decentralised sliding mode (SM) LFC strategy is proposed for multi‐area time‐delay power system with significant wind power penetration. The appropriate switching surface gain is selected to assure the stability of power system with mismatched uncertainties. The SM controller is constructed to satisfy the hitting condition. At last, the SM controller is proved by using the real‐time digital simulator device under different case of time delay, wind penetration, load disturbance and operating point. The test results show that the proposed SM LFC can reduce frequency deviation and tie‐line power fluctuation effectively.