Abstract
Problem statement: The disturbance in the complicated network of power system may cause in nonlinear response. Static Synchronous Compensator (STATCOM) is a power electronic based device that has the capability of controlling the line current. This study applies the STATCOM to decrease the over line current in power system during dynamic state. Approach: This study proposes the control strategy of a STATCOM to enlarge the stability region of a simple power system. The control is determined very carefully to satisfy the Lyapunov’s stability criterion and is found to be a non-linear function of system states. The proposed nonlinear control of STATCOM for damping power system oscillation is investigated through the sample system. Results: The maximum generator rotor angle of the faulted system without a STATCOM is continuously oscillation and the maximum value is much more than the system with a STATCOM. Conclusion: STATCOM based the proposed nonlinear control can damp power system oscillation.
Highlights
The disturbance in the complicated network of Modern power system network is getting much more complicated and heavily loaded than ever before
This study presents the nonlinear control of STATCOM for damping power oscillation
The proposed nonlinear control of STATCOM for damping power system oscillation will be investigated through the sample system
Summary
The disturbance in the complicated network of Modern power system network is getting much more complicated and heavily loaded than ever before. The consequences of such are the difficulty of power power system may cause in nonlinear response. This study presents the nonlinear control of STATCOM for damping power oscillation. The effect of STATCOM on damping power system oscillation is investigated in various cases. Santos et al, 2010) They have proposed many methods to improve stability of power system such as load
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