Open AccessRobust coordinated control for damping low frequency oscillations in high wind penetration power system
Author(s) -
Gupta Abhilash Kumar,
Verma Kusum,
Niazi Khaleequr Rehman
Publication year - 2019
Publication title -
international transactions on electrical energy systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 42
ISSN - 2050-7038
DOI - 10.1002/2050-7038.12006
Subject(s) - control theory (sociology) , electric power system , phasor measurement unit , low frequency oscillation , observability , wind power , robustness (evolution) , engineering , induction generator , automatic frequency control , phasor , computer science , power (physics) , mathematics , control (management) , electrical engineering , physics , quantum mechanics , artificial intelligence , biochemistry , chemistry , gene
The preeminence of wind power as a source of clean power generation is growing very fast. The increasing wind penetration, however, escalates the problem of low‐frequency oscillations (LFOs) in the modern grid. In this paper, LFOs damping improvement is presented for a high wind penetration power system by a robust coordinated control strategy of the power system stabilizer (PSS) and power oscillation damper (POD) of doubly fed induction generator (DFIG). This control strategy is achieved using an improved eigenvalue‐based objective function, optimized using grey wolf optimizer (GWO). The impact of wind farm location on system oscillatory stability is accomplished using eigenvalue analysis and dynamic sensitivity analysis. The wide‐area‐based phasor measurement unit (PMU) signals are used as PODs input selected using modal observability criterion. The eigenvalue analysis, time‐domain simulations, and robustness analysis are performed to verify the efficacy of the proposed control strategy on a modified IEEE New England test system. The simulation results show the improvement in LFO damping with the proposed control strategy for a wide range of operating scenarios including faults and line outages at different loading conditions.