Power System Reliability News Today

SAN ANTONIO - The Electrical Reliability Council of Texas (ERCOT) is requesting Texans to conserve electricity from 6 a.m. to 10 a.m. due to freezing temperatur

This paper considers energy delivery by a Hybrid Access Point (HAP) to one or more Radio Frequency (RF)-energy harvesting devices. Unlike prior works, it considers imperfect and causal Channel State Information (CSI), and probabilistic constraints that ensure devices receive their required amount of energy over a given planning horizon. To this end, it outlines two novel contributions. The first is a chance-constrained program, which is then solved using a Mixed Integer Linear Program (MILP) cou...

The recloser-fuse coordination of the distribution networks equipped with distributed generators (DGs) may be jeopardized by using the conventional overcurrent protection strategies thus degrading the network reliability. This research article focuses on the design of a protection coordination strategy based on the dual-setting directional recloser (DSDR) for the effective implementation of a fuse-saving scheme in distribution networks (DNs). The proposed DSDR-based protection strategy will assi...

Despite the substantial reliability and power quality improvements, the proliferation of distributed energy resources (DERs) can introduce many protection complexities in distribution networks. This research article presents a comprehensive investigative analysis of the distributed generation (DG) impacts on the protection performance of the distribution network. Various protection coordination case studies have been analyzed under different operating conditions by varying the DG penetration lev...

Although it is commonly assumed that power swing is symmetrical and will have identical effects on all three-phase voltages and currents, there is another type of power swing, which is asymmetrical and mainly occurs during single-pole tripping (SPT), the impact of which on power systems integrated with the inverter-based resources (IBRs) has not been investigated so far. Since the likelihood of the occurrence of asymmetrical power swing is increasing in todays heavily loaded transmission lines, ...

DWP Ratepayers Demand Transparency LA WATCHDOG--The Department of Water and Power is planning a series of outreach meetings with Ratepayers and other interested parties to discuss the Los Angeles 100% Renewable Energy Study (“LA100”) that outlines various plans that will provide City residents and businesses with reliable 100% clean renewable energy by 2045. However, this DWP sponsored study by the highly regarded National Renewable Energy Laboratory is very complex, offers many di...