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Application of superconducting magnetic energy storage unit to improve the damping of synchronous generator

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2 Author(s)
Chi-Jui Wu ; Nat. Taiwan Inst. of Technol., Taipei, Taiwan ; Yuang-Shung Lee

A systematic approach to the design of a controller for superconducting magnetic energy storage (SMES) units to improve the dynamic stability of a power system is presented. The scheme employs a proportional-integral (PI) controller to enhance the damping of the electromechanical mode oscillation of synchronous generators. The parameters of the PI controller are determined by the pole assignment method based on modal control theory. Eigenvalue analysis and nonlinear computer simulations show that SMES with the PI controller can greatly improve the damping of the system under various operating conditions. Although the PI controller is designed for a special load condition, it can also provide good damping under other load conditions

Published in:

IEEE Transactions on Energy Conversion  (Volume:6 ,  Issue: 4 )