The surge in demand for electricity has driven the power system to operate at a lower efficiency level. With many actions taken improve electric grid, voltage unbalance and line overload have become challenging problems address. Voltage control can be determined generation, transfer, usage. When is under stress, reactive current significantly contributes instability. To maximize of system, flex...

This study deals with a new approach to tackle the challenges encountered in filters-based reactive power calculation techniques utilized control system of static VAr compensators. In this approach, step and time-varying responses are improved by combination differential filter-based methods. Then, optimum values main parameters low-pass band-stop filters determined considering three criteria: ...

To meet with the ever-enhancing load demands, new transmission lines should be bolted-on in the existing power system but the economic and environmental concerns are major constraints to this addition. Hence utilities have to rely on the existent power system infrastructure with some modifications. To enhance controllability and boost power transfer potential of the existing power system the us...

This study aimed to optimize the incorporation of static var compensators (SVCs) into Oman’s main interconnected system (MIS) using real 2023 MIS data. Leveraging particle swarm optimization (PSO) algorithm within MATLAB, substantial enhancements were achieved in voltage profiles, with associated losses reducing by roughly 2%. A multi-objective strategy effectively managed costs while preservin...

t In this paper the most general Hz control problem is considered. We derive necessary and sufficient conditions when the infimum is attained by state feedback. We do the same for the measurement feedback case where we derive necessary and sufficient conditions when the infimum is attained by proper dynamic compensators. We also investigate reduced-order compensators if some states are observab...

The concept of observer-based compensators (OBCs) and the deterministic separation principle have long been cornerstones of modern control theory. In our paper, we extend these ideas via singular system theory to encompass a wider variety of rational compensators. We show that the separation principle generalizes in a natural way to OBCs of all orders, including the static case. We pay particul...

In this paper, we develop linear fixed-order (i.e., fulland reduced order) pressure rise feedback dynamic compensators for axial flow compressors with throttle valve actuation. Unlike the nonlinear static controllers proposed in the literature possessing gain at all frequencies, the proposed dynamic compensators explicitly account for compressor performance versus sensor accuracy, compressor pe...

Thyristor controlled static compensators consist of two basic schemes, TCR and TSC. Owing to the discontinuous current in TCR, current harmonics are generated in the supply system. This paper introduces two methods for the reduction of these harmonics. On the basis of the coordination or uncoordination of turn ratios with harmonic reduction levels, each method is described in two alternative sc...