When power systems are expanded and connected together with weak tie lines, the low-frequency oscillations are increased and the stability margin of the power system decreases. Therefore, when designing the transmission system to be used, it is necessary to maintain the dynamic stability of the power system, and to make sure to have the most possible stability margin. SSSC is a FACTS device con...

Encountering series-compensated transmission lines, sub-synchronous resonance (SSR) may strike the power system by jeopardizing its stability and mechanical facilities. This paper aims to verify the capability of static synchronous series compensator (SSSC) in mitigating the mechanical and electrical oscillations such as SSR in wind farm integrations. A wind turbine with a self–excited inductio...

*(EEE Department, Yogananda Institute of technology and Science, Tirupathi, India) ** (Research Scholar, S.V University, Tirupathi, India ** (Department of Electrical Engineering, S.V.University, Tirupathi ABSTRACT This paper presents the design of integral controller for Automatic Generation Control (AGC) of hydrothermal system under deregulated environment employing simulated annealing (SA). ...

Power systems are subjected to small–signal oscillations that can be caused by sudden change in the value of large loads. To avoid the dangers of these oscillations, the Power System Stabilizers (PSSs) are used. When the PSSs can not be effective enough, installation of the Thyristor–based compensators to increase the oscillations damping is a suitable method. In this paper, a Static Synchronou...

Approaching its tenth anniversary, the IEEE Storage System Standards effort is in the process of balloting Media Management System (MMS) standards. These represent the first standards for the IEEE Storage System Standards Working Group (SSSWG), and the first storage system standards for the world. In the early years, SSSWG produced the Mass Storage System Reference Model (MSSRM), directly influ...

This paper describe the reactive power flow solution based BBO to amend the performance of the power system. Biogeography-based optimization is incorporating flexible AC transmission systems (FACTS). Static Synchronous Series Compensator (SSSC) is type of FACTS device used in this paper. In this BBO Store best parent solution and apply mutation and migration process on remaining parents to prod...

Ideberg type III glenoid fractures with associated superior shoulder suspensory complex (SSSC) injuries are rare, and related treatments have not been reported in the literature. The purpose of this study was to evaluate the clinical outcomes of such injuries treated with open reduction and internal fixation (ORIF). Between July 2007 and April 2012, ten patients with Ideberg type III glenoid fr...

During morphological differentiation of Streptomyces coelicolor A3(2), the sporogenic aerial hyphae are transformed into a chain of more than fifty spores in a highly coordinated manner. Synthesis of the thickened spore envelope is directed by the Streptomyces spore wall synthesizing complex SSSC which resembles the elongasome of rod-shaped bacteria. The SSSC includes the eukaryotic type serine...

This paper presents a method for damping of low frequency oscillations (LFO) in a power system. The powersystem contains static synchronous series compensators (SSSC) which using a chaotic harmony searchalgorithm (CHSA), optimizes the lead-lag damping stabilizer. In fact, the main target of this paper isoptimization of selected gains with the time domain-based objective function, which is solve...

Coracoid fractures (CF) are relatively uncommon injuries and in most cases associated with other concomitant lesions to the superior shoulder suspensory complex (SSSC). As far authors’ knowledge, there no reports of an isolated acute fracture base coracoid process, years after Latarjet procedure. The authors present case a 51-year-old male non-professional cyclist, history left procedure 9-year...