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3141: Efforts within NERC and FERC on Transmission Resiliency Improvements

Motivated by the significant and fast paced changes on bulk power system (BPS) design, operation and planning landscapes, the Federal Energy Regulatory Commission (FERC) and the North American Electric Reliability Corporation (NERC) are presenting multiple individual and joint efforts toward the development and revision of standards, criteria, policies and regulations to improve the BPS resilience. An extensive review of these agencies resources led to the identification of four core areas of ac

Mar 1, 2021 - Sep 18, 2021

Research

3147: Best Practices on Operational Studies for Congestion Management

PROJECT OVERVIEW & OBJECTIVES:To summarize tools and techniques for studying and managing congestion in utilities that have already developed expertise in the studying scenarios of a large proportion of IBR under various resource mixes and produce a ‘Best Practices’ document that other utilities could use.

PSPO

Research

3118: Prediction of Power System Instability Based on PMUs: Utilizing the ROSE (Region of Stability Existence) Approach

With the increased number of phasor measurement units (PMUs) being installed, the problem of utilizing the data for accurate computation of power system stability margin becomes more important. A software tool is needed to compute the exact values of voltage stability margins under any system conditions in planning and real-time environments. The concept of the Region Of Stability Existence (ROSE), demonstrated under this project, provides the framework for utilizing PMU measurements in order to

PSPO

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3139: Energy Storage as a Transmission Asset

Energy storage is a rapidly growing field promising to revolutionize the way power is generated and delivered to end-users. Energy storage has the potential to support the evolution of the transmission grid. With increasing deployment of renewable power generation assets and the need for additional energy, an emerging opportunity for energy storage has been identified to provide frequency and voltage regulation, ancillary services, load shifting, and peak shaving at the transmission level. This

Jan 14, 2020 - Aug 25, 2020

PSPO

Research

3101: Fault Current Management

Faults expose power apparatus to large short-circuit currents, potentially causing damage due to the associated mechanical and thermal stresses, both of which increase with the square of the current. While fault duties can be held down by system design, such measures inevitably compromise operational reliability and system efficiency. Thus a device capable of limiting fault currents within the first half-cycle has been sought since the 1970’s, when fault levels had already reached 60-80 ti

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Research

3146: Implementation of Dynamic Line Ratings

OTD

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Research

3138: Planning and Operations with a Large Percentage of Renewable Generation

The global power industry is rapidly evolving due to the proliferation of new technologies and energy sources. Variable renewable energy (vRE) sources, such as wind and solar PV, now represent the leading form of new generation capacity installations globally. In many regions, vRE can be the largest source of generation on the grid during much of the year. While the industry’s knowledge and operational experience has advanced significantly over the past decade, there are still technical ch

Nov 19, 2019 - May 20, 2020

PSPO

Research

T512: Forecasting of Damaging Lightning Strokes By Radar Observations

The objective of the report was to determine the feasibility of forecasting in real-time the location of lightning from observations of thunderstorms with radar. The study was performed with historical lightning, outage and radar data. Correlations between several characteristics of the lightning flash revealed that strong flashes are generally rare and closest to the radar echo. The flash frequency and the outage frequency increase with the severity of the thunderstorm as expressed by the area

Research

3110: Transmission Planning Risk Indices

The concept of risk is widely acknowledged in transmission planning. However, there is nouniformity or industry consensus in the manner in which risk is dealt with. While some utilities(IOU, ISO or Government Agency) have highly developed models and tools to deal with risk,others acknowledge risk, but take no apparent action. Consequently, each utility uses a customset of risk measures in the transmission planning process. While the rationale for the creation ofthese risk indices is to enable th

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3115: Maximizing Transmission Capability on Existing Rights-of-Way

This report discusses the practical ways by means of which existing ac transmission lines can be upgraded for increased power transfer capability. Twenty different methods of maximizing transmission capability are presented and discussed. Where relevant, their applications to Canadian situations are highlighted along with suggestions for further development where pertinent technologies are still evolving. When an upgrade is contemplated, actual outage time for the transmission line must be minim

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