This paper presents a control strategy to mitigate subsynchronous oscillations (SSOs) in doubly-fed induction generator (DFIG)-based wind farms integrated into series-compensated transmission systems. The has two parts: the first one, compensation filter based on motion-induction amplification concept is proposed increase damping of DFIG machine frequency range; second proportional-integral (PI...

Series-compensated transmission lines can lead to a sub-synchronous resonance (SSR) phenomenon at high compensation levels, where the system lacks stability. Gate-controlled series capacitor (GCSC) is widely used damp SSR. Here, an effective and new methodology for damping SSR presented. The proposed method aims alleviate based on estimating both frequency maximum value of voltage magnitude sig...

With the increasing demand of electric power supply, the necessity to transmit more power has become the need of the hour. The excess power can be transferred by building new infrastructure (costly and time taking) or by using series compensation (relatively cheaper and faster alternative). Series compensation is a technique in which line inductance is compensated by placing a capacitor in seri...

This paper presents a new method, which can provide protection to both uncompensated and fixed series compensated overhead transmission line with different level of compensations. It doesn’t require any functional change while working with series compensated transmission line or uncompensated line. The proposed algorithm uses Discrete Wavelet Transform with sub-band energy extraction from lower...

At the time of power swing the measured impedance lies inside the relay operating region. There is undesired tripping of Distance relay during power swing without having any fault. So relay must be blocked & must trip after a fault occur during power swing. This paper presents new technique to detect fault during power swing. In the proposed technique process starts by simulating the double tra...

The extended describing function (EDF) is a well-known method for modelling resonant converters due to its high accuracy. However, it requires complex mathematical formulation effort. This paper presents a simplified non-linear mathematical model of series-series (SS) compensated inductive power transfer (IPT) system, considering zero-voltage switching in the inverter. This simplified mathemati...