Abstract This paper examines how the damping capability can be improved if inter-area oscillations occur by combining control strategies in hydropower plants. First, challenges of plants, such as water hammer effect, are discussed. In a single-machine infinite bus system (SMIBS), use Power System Stabilizer (PSS) generator excitation and governor path well combination both examined for their ef...

The growth in the demand of electrical energy is leading to load on the Power system which increases the occurrence of frequent oscillations in the system. The reason for the oscillations is due to the lack of damping torque which is required to dominate the disturbances of Power system. By using FACT devices, such as Unified Power Flow Controller (UPFC) can control power flow, reduce sub-synch...

-This paper presents an optimal feed-back switching concept for the Unified Power Flow Controller (UPFC) based damping controllers for damping low frequency oscillations in a power system. Detailed investigations have been carried out considering switching between two optimal damping controllers; one with respect to modulating index of shunt inverter and another with respect to modulating index...

There are numerous examples of energy policy failures (Heffron et al., 2018) which now being systematically studied to provide for much-needed policy-relevant perspectives into key definitions, contexts, and theoretical frameworks analysis (Sokołowski Heffron, 2022). This paper will focus on one the prominent an failure; case Turkey – Austria natural gas pipeline project,1 also known as Nabucco...

This paper contains a description of the Philips/RWTH 1998 HUB4 system which has been build in a joint e ort of Philips Research Laboratories Aachen and Aachen University of Technology. We will focus our discussion on recent improvements compared to the original 1997 HUB4 system and evaluate them on the HUB4'97 evaluation data. The paper will deal with 1. a rough system overview including featu...

The dynamic characteristics of hydropower unit governing systems considerably influence the stability units and connected power system. performances with regulation mode (PRM) opening (ORM) are different. This paper establishes a detailed linear model based on Phillips–Heffron model. damping characteristic two modes different water inertia time constants TW were analyzed. ORM tended to provide ...

The major concern in power systems has been the problem of low frequency oscillations (LFO) that results in the reduction of the power transfer capabilities. The applications of power system stabilizers (PSS) are commonly employed to dampen these low frequency oscillations. The parameters of the PSS are tuned by considering the Heffron-Phillips model of a single machine infinite bus system (SMI...