Application of simultaneous active and reactive power modulation of superconducting magnetic energy storage unit to damp turbine-generator subsynchronous oscillations
- National Taiwan Inst. of Tech., Taipie (Taiwan, Province of China)
An active and reactive power (P-Q) simultaneous control scheme which is based on a superconducting magnetic energy storage (SMES) unit is designed to damp out the subsynchronous resonant (SSR) oscillations of a turbine-generator unit. In order to suppress unstable torsional mode oscillations, a proportional-integral-derivative (PID) controller is employed to modulate the active and reactive power input/output of the SMES unit according to speed deviation of the generator shaft. The gains of the proposed PID controller are determined by pole assignment approach based on modal control theory. Eigenvalue analysis of the studied system shows that the PID controller is quite effective over a wide range of operating conditions. Dynamic simulations using the nonlinear system model are also performed to demonstrate the damping effect of the proposed control scheme under disturbance conditions.
- OSTI ID:
- 6798932
- Journal Information:
- IEEE Transactions on Energy Conversion (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Energy Conversion (Institute of Electrical and Electronics Engineers); (United States) Vol. 8:1; ISSN 0885-8969; ISSN ITCNE4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
250100* -- Energy Storage-- Magnetic
CONTROL
CONTROL EQUIPMENT
DAMPING
DESIGN
ELECTRIC GENERATORS
ENERGY STORAGE
ENERGY STORAGE SYSTEMS
EQUIPMENT
LOAD MANAGEMENT
MACHINERY
MAGNETIC ENERGY STORAGE
MANAGEMENT
OSCILLATIONS
PERFORMANCE
STORAGE
SUPERCONDUCTING MAGNETIC ENERGY STORAGE
TURBOGENERATORS
TURBOMACHINERY