Damping of a parallel ac-dc power system using PID power system stabilizers and rectifier current regulators
- Dept. of Electrical Engineering, National Taiwan Univ., Taipei (TW)
A novel approach is presented to improve the dynamic stability of a parallel AC-DC power system. The developed scheme employs a proportional-integral-derivative (PID) power system stabilizer (PSS) and a PID rectifier current regulator (RCR) to enhance the damping for the electromagnetical mode of the system. The parameters of the proposed PID controllers are determined using a unified approach based on modal control theory. Eigenvalue analyses are performed for the system under various operating conditions in order to compare the damping effects provided by the two different control schemes. To demonstrate the effectiveness of the proposed damping schemes under disturbance conditions simulated dynamic response tests based on a nonlinear system model are also performed.
- OSTI ID:
- 6768869
- Journal Information:
- IEEE Trans. Power Electronics; (United States), Journal Name: IEEE Trans. Power Electronics; (United States) Vol. 3:3; ISSN ITCNE
- Country of Publication:
- United States
- Language:
- English
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24 POWER TRANSMISSION AND DISTRIBUTION
AC SYSTEMS
COMPUTERIZED SIMULATION
CONTROL SYSTEMS
DAMPING
DC SYSTEMS
DISTURBANCES
DYNAMIC LOADS
EIGENVALUES
ELECTRICAL EQUIPMENT
ENERGY SYSTEMS
EQUIPMENT
PARAMETRIC ANALYSIS
POWER SYSTEMS
RECTIFIERS
SIMULATION
STABILITY
VAR CONTROL SYSTEMS