OPTIMAL RC PROTECTION OF THYRISTORS

Optimalna Rc Za©tita Tiristora Optimal Rc Protection of Thyristors

Bi-directionally controlled thyristors

for a better worldTM The bi-directional controlled thyristor (BCT) is a concept for high power phase control thyristors (PCTs) developed by ABB Switzerland Ltd., Semiconductors where two anti-parallel high power thyristors are integrated onto one single silicon wafer and are assembled into one housing. This feature enables designers of static VAr compensators, static switches, soft starters and...

High-voltage Thyristors for HVDC and Other Applications: Light-triggering Combined with Self-protection Functions

High-power thyristors with direct light -triggering and integrated protection functions can be utilized advantageously for applications in which several thyristors are connected in series. This applies in particular to High-Voltage DC (HVDC) transmission, Static Var Compensation (SVC), converters for medium voltage drives, and also to certain pulse power applications. Recent progress in both de...

Impact of Thyristors Controlled Series Capacitor Devices and Optimal Power Flow on Power Systems

This paper presents an algorithm, for solving the Optimal Power Flow problem with flexible AC transmission systems (FACTS). The type of FACTS devices is used: thyristor-controlled series capacitor (TCSC). A method to determine the optimal location of thyristor controlled series compensators has been suggested. The proposed approaches have been implemented on an adapted IEEE 26 bus system. The s...

OPTIMAL PERFORMANCE-BASED SEISMIC DESIGN OF COMPOSITE BUILDING FRAMES WITH RC COLUMNS AND STEEL BEAMS

Composite RCS building frames integrate reinforced concrete columns with structural steel beams to provide an efficient solution for the design and construction of earthquake-resisting structures. In this paper, an optimization framework is developed for performance-based seismic design of planar RCS moment resisting frames. The objective functions are defined as minimizing the construction cos...