Aineistot 51-60 / 60
Co-optimization of transmission switching and variable reactance devices control under worst-case wind uncertainty
The work reported in this paper jointly addresses two major challenges in modern power systems: 1) systematically maximizing wind power generation (WPG) utilization under worst-case uncertainty and 2) employing mixed ...
Online condition monitoring of MV cable feeders using Rogowski coil sensors for PD measurements
Condition monitoring is a highly effective prognostic tool for incipient insulation degradation to avoid sudden failures of electrical components and to keep the power network in operation. Improved operational performance ...
A risk-based decision framework for the distribution company in mutual interaction with the wholesale day-ahead market and microgrids
One of the emergent prospects for active distribution networks ( DN ) is to establish new roles to the distribution company ( DISCO ). The DISCO can act as an aggregator of the resources existing in the DN , also when parts ...
Power system flexibility improvement with a focus on demand response and wind power variability
Unpredictable system component contingencies have imposed vulnerability on power systems, which are under high renewables penetration nowadays. Intermittent nature of renewable energy sources has made this unpredictability ...
Islanding detection during intended island operation of nested microgrid
In the future, functionalities like islanding detection must also operate during intended island operation of (MV+MV or MV+LV) nested microgrids. In this paper, healthy and faulty islanding detection of LV network connected ...
Prospects and costs for reactive power control in Sundom smart grid
New options to provide the technical ancillary services locally and system-wide by distributed energy resources (DER) are needed in the future. Sundom Smart Grid (SSG), local smart grid pilot in Vaasa, offers a novel ...
Operative factors affecting energy balancing and speed of equalization in battery storage system
Energy storage systems play a significant role in power management systems and control of the modern grid. One of the most challenging issues is controlling storage units in distributed form. This paper presents a possible ...
Impact of distributed generation on protection and voltage regulation of distribution systems : a review
During recent decades with the power system restructuring process, centralized energy sources are being replaced with decentralized ones. This phenomenon has resulted in a novel concept in electric power systems, particularly ...
Multi-objective active network management scheme studied in Sundom smart grid with MV and LV network connected DER units
Use of controllable, flexible, distributed energy resources (DER) in MV and LV networks will be in key role in order to improve local and system-wide grid resiliency and maximize utilization of renewable energy sources ...
Advanced utilization of big data for real-time monitoring and data analytics in Sundom smart grid
Modern technologies are increasingly used in many protection, control and monitoring solutions for power distribution grids. Voltage and current measurements are nowadays usually converted to digital signals, which are ...