This paper describes the state-of-the-art on the small-signal stability analysis and design of FACTS assisted power systems. The benefits of integrating all these tools into a comprehensive package and properly employing graphical interface, including animation of algorithm results, are highly emphasized. ALGORITHMS FOR THE ANALYSIS AND CONTROL OF THE SMALL SIGNAL STABILITY OF LARGE SCALE POWER...

A systematic, automatable, unified methodology is presented for the modeling of non-linear large-signal dynamics and eigenvalue analysis of microgrid systems. Unlike nodal-based simulators and typical state-variable methods that require Kirchhoff’s current law analysis, a state-space model is systematically derived from the netlist of the equivalent qd microgrid circuit model. The model may be ...

Voltage source converters (VSCs) with self-commutation ability are suitable for interconnecting weak ac systems. This article conducts a comparative study of the small-signal stability characteristics three typical VSCs, namely, two-level VSCs (TL-VSCs), half-bridge modular multilevel (HB-MMCs), and hybrid MMCs (HY-MMCs), under system integration special consideration on both inverter rectifier...

The modern power grid features the high penetration of converters, which widely employ a phase-locked loop (PLL) for synchronization. However, it has been pointed out that PLL can give rise to small-signal instabilities under weak conditions. This problem be potentially resolved by operating converters in grid-forming mode, namely, without using PLL. Nonetheless, not theoretically revealed how ...

In this paper an attempt has been made to study the application of Thyristor Controlled Series Capacitor (TCSC) to mitigate small signal stability problem in addition to congestion management of a heavily loaded line in a multimachine power system. The Flexible AC Transmission System (FACTS) devices such as TCSC can be used to control the power flows in the network and can help in improvement o...