The increasing consumption of the electric energy aimed at develop transmission networks and demand for higher reliability from network; in this regard, wide-area measurement systems using phasor units (PMUs) have revolved trend power network management. In paper, optimal allocation PMUs order to reach perfect observability based on a differential evolution algorithm, is proposed it shown that,...

Large power system disturbances and their consequences, represent a challenging problem for the power industry and especially for the network system operators, the ones who are responsible for the network operation at large, its security and reliability. This fact has reinforced interest in the new generation of monitoring systems with the aim to gain if possible a precise and maximum knowledge...

This paper treats the problem of primary and secondary control design in low-inertia power grids with mixed lines and a large amount of inverter-interfaced generation. A dynamic phasor model is developed that represents the electromagnetic and electromechanic dynamics of lines, inverters, synchronous machines and constant power loads. The model offers a straightforward way to combine white-, gr...

Abstract – This paper proposes a PMU (Phasor Measurement Unit) based power oscillation detection system. The phasor angles at domestic 100V power outlets are collected to the server PC through internet, and the power oscillations and their various parameters are detected from the phasor angles. PMUs and servers are installed to Japanese 60Hz system, which is a large-scale longitudinal power sys...

To improve the primary frequency response in future low-inertia hybrid power system a fuzzylogic based frequency controller (FFC) for wind farms augmented with energy storage systems(wind-storage system) and intelligent PV farms for the frequency stabilization is proposed inthis paper. Using system frequency deviations the proposed controller provides bidirectionalreal p...

This paper presents a fault location technique for transmission lines with minimum current measurement. This algorithm investigates proper current ratios for fault location problem based on thevenin theory in faulty power networks and calculation of short circuit currents in each branch. These current ratios are extracted regarding lowest sensitivity on thevenin impedance variations of the netw...

Monitoring of a power system is essential for maintaining it in secure operating condition. Electric distribution management (DMS) should possess monitoring mechanism addressing the entire conditions system. Distribution System State Estimation (DSSE) an integral building block DMS. Because new technologies integrated into system, opportunities, problems and challenges related to control are be...

Recent advances on synchro phasor measurement along with its regulation by the Operador Nacional do Sistema – ONS brought access to high resolution data rates up one sample per cycle. Electrical power system current, voltage, phase and frequency are collected through Phasor Measurement Units-PMUs stored in Data Concentrators PDCs. Such high-resolution favours new algorithms applications towards...

Egypt is moving towards smart grid infrastructures to enable efficient bidirectional power supply with reduced carbon footprint. The target smart grid will feature distributed energy generation with renewable energy systems. With the improvement of wind power technology in Egypt, increase of wind power capacity, the impact of wind power on the grid has become an important research topic as well...

This paper describes a heuristic approach for optimal placement of phasor measurement units (PMUs) in power system for improving state estimation accuracy. PMUs are able to measure highly accurate bus voltage phasors as well as branch current phasors incident to the buses at which PMUs are installed. Due to cost consideration of PMU placement, power grid utilities are interested in the knowledg...