Power systems are highly nonlinear systems that exhibit undesirable oscillations following disturbances. Power system stabilizers (PSS) are usually incorporated to provide auxiliary excitation signals to damp these oscillations. Our objective is to improve the PSS performance via the use of fuzzy logic and LMI techniques. A power system is viewed as a polytopic model that can be adequately repr...

the purpose of this article is to improve dynamic stability of power network by using a new method. In this method the entire stability of the network creates from one point and all the stabilizers of power network collect in a PSS bank. The connecting channel between network generators and PSS bank is internet. Expansion and vastness of internet make it easily accessible every where. In the ne...

Department of Electrical Engineering, AU college of Engineering, Andhra University, Visakhapatnam, India 2 Research Scholar, Department of Electrical Engineering, AU college of Engineering, Andhra University, Visakhapatnam, India Abstract Power System Stabilizer (PSS) must be capable of providing appropriate stabilization signals over a broad range of operating conditions and disturbances. Trad...

In large power systems, low frequency electro-mechanical oscillations often follow the electrical disturbances. Generally, power system stabilizers (PSS) are used in conjunction with Automatic Voltage Regulators (AVR) to damp out the oscillations. However, during some operating conditions this device may not produce adequate damping and other effective alterations are needed in addition to PSS....

This paper discusses and compares different control techniques for damping undesirable inter-area oscillation in power systems by means of Power System Stabilizers (PSS), Static Var Compensators (SVC) and Shunt Static Synchronous Compensators (STATCOM). The oscillation problem is analyzed from the point of view of Hopf bifurcations, an “extended” eigen analysis to study different controllers, t...

Power oscillations are a growing concern among power system operators worldwide. Traditionally, the main countermeasure against dangerous power oscillations has been the installation of power system stabilizers (PSS). Essentially, the potential for inter-area power oscillations depends on the strength of the tie lines between different areas and the load on the ties. From a European perspective...