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PSERC Webinars 2012


Transmission Design at the National Level: Benefits, Risks and Possible Paths Forward
PSERC Future Grid Initiative Webinar Series Slides, January 24, 2012

We define a national transmission overlay as a high capacity, multi-regional transmission grid that spans all three interconnections, designed as a single integrated system to provide economic and environmental benefits to the nation. The objective of this webinar and associated white paper is to identify benefits to building a national transmission overlay, to lay out essential elements to facilitate continued dialogue on this topic, and to frame possible paths by which it could be realized. A preliminary study illustrated that a national transmission overlay, under high renewable penetration and low CO2 emissions, could result in cost-reduction of between a quarter trillion and a half trillion dollars over a 40-year period, while increasing infrastructure resilience and flexibility.  
Jim McCalley, Iowa State University 01/23/12 1.68 MB PDF 12-01
Cyber-Physical Systems Security for the Smart Grid
PSERC Future Grid Initiative Webinar Series Slides, February 7, 2012

One thing that virtually all of the information hierarchy components must deal with is cyber and physical security. This webinar (and the associated white paper) focuses on identifying a comprehensive set of cyber security challenges and the need for security at multiple levels of the cyber-physical power system, namely, information security, ICT infrastructure security, and application-level security. It identifies cyber security research issues beyond the traditional IT security issues. Example of these research issues are: (i) cyber attack risk modeling and risk mitigation, (ii) attack-resilient monitoring, protection and control algorithms, (iii) defense against coordinated cyber attacks, (iv) AMI infrastructure security, (v) trust management and attack attributions, and (vi) simulation models, data sets, test bed evaluations.

There is a need for going beyond (N-1) contingency criteria to deal with coordinated cyber attacks. Also, traditional models and algorithms (that are robust against random naturally occurring faults) are inadequate to deal with malicious cyber attacks, and hence the need for development of novel models and attack-resilient algorithms across generation, transmission, and distribution systems. Finally, attack deterrence, prevention, detection, mitigation, and attribution are linked.  
Manimaran Govindarasu, Iowa State University 02/06/12 1.61 MB PDF 12-02
Future Grid: The Environment
PSERC Future Grid Initiative Webinar Series Slides, February 21, 2012

The objective of this webinar is to present the significant near- and long-term unresolved environmental issues relevant to the future electric grid and to summarize the technologies that will help resolve them. These issues include greenhouse gas mitigation, climate change adaptation, and availability of water for electric generation. Technologies that may help resolve the critical issues include fuel switching (coal to natural gas), carbon capture and storage, nuclear fission generation, renewable technologies, energy storage, energy efficiency improvements for transmission/distribution systems and end users, and demand response.  
Ward Jewell, Wichita State University 02/15/12 4.59 MB PDF 12-03
Future Grid: The Environment
Black and white slides for the indicated webinar  
02/15/12 24.92 MB PDF 12-03a
AMI: Communications and Integration Options
PSERC Webinar Slides. March 6, 2012

One of the major components of the smart grid is the interface with the customer.  This interface is primarily through the meter connection. This presentation analyzes the current state of communication infrastructure for AMI and informs about the future actions needed to enable consumer participation in the smart grid. It describes the motivation for AMI, surveys the current state of the art and deployment status, and points out technical, policy, and other challenges in moving forward. The white paper focuses on the technical aspects and capabilities of communication technologies being considered for AMI and what future research needs to be done to hasten the realization of benefits attributed to the AMI application scenario.  
Vinod Namboodiri, Wichita State Univ. 03/05/12 2.85 MB PDF 12-04
Integration of Geomagnetic Disturbances (GMDs) Modeling into the Power Flow
Presentation slides for PSERC public webinar on March 13, 2012

Geomagnetic disturbances (GMDs) have the potential to severely disrupt operations of the electric grid by causing high geomagnetically induced dc currents (GICs) that can lead to transformer saturation resulting in large reactive power losses. Yet to-date power engineers have had few, if any, tools to help them assess the impact of GMDs on their systems. This presentation will explain how the impacts of GMDs can be integrated into power flow analysis software. Using such an integrated approach, power engineers can study the impact of GMDs on their systems, allowing for the study of mitigation strategies. Example strategies considered include the installation of GIC blocking devices and the impact of operational changes to reduce GICs. Example results are presented for a large-scale utility system.  
Tom Overbye, Univ. of Illinois at Urbana/Champaign 03/12/12 1.93 MB PDF 12-05
Integration of Geomagnetic Disturbances (GMDs) Modeling into the Power Flow
PowerPoint slides for PSERC public webinar on March 13, 2012  
Tom Overbye, University of Illinois/Urbana-Champaign 03/13/12 3.33 MB PPT 12-05a
Primary and Secondary Control for High Penetration Renewables
PSERC Future Grid Initiative Webinar Series Slides, March 20, 2012

The growing penetration of renewable generation technologies coupled to the grid through power electronic interfaces, and the potential for future growth of electrical storage similarly coupled through power electronics, raise new opportunities and challenges for primary and secondary control in the electric power system. In this context, we need to fundamentally re-examine the long-standing premises of primary and secondary control in the grid. We also need to consider both the capabilities of the new “control actuators” available to us (i.e., renewable generation, supplemented by power electronic coupled storage), as well as the wider system objectives to be achieved by the control. This approach will offer solutions far superior to simply trying to force new generation and storage technologies to behave like the old.    
Chris DeMarco, Univ. of Wisconsin - Madison 03/19/12 4.05 MB PDF 12-06
Networked Information Gathering and Fusion of PMU Measurements
PSERC Future Grid Initiative Webinar Series Slides, April 3, 2012

The synchrophasor technology is emerging as an enabling technology to facilitate both information interaction as well as energy interaction between providers and customers, and help revolutionize the power system. In particular, it is critical to ensure reliable and secure communication systems for synchrophasor data. In this presentation and the accompanying white paper, we identify a few important problems in this fundamental building block in the smart grid.  
Junshan Zhang, Arizona State University 04/02/12 875.47 KB PDF 12-07
Distributed and Centralized Generation
PSERC Future Grid Initiative Webinar Series Slides, April 17, 2012

The objective of the presentation and accompanying white paper is to identify the strengths and weak-nesses associated with centralized generation (CG) and distributed generation (DG) infrastructure for the future electric grid system, including environmental impact. This will involve the development of indices for an economical scale study of DG relative to CG, and consider which is the most cost-effective to ac-commodate new markets. In order to assess the robustness of DG and CG under different load conditions, different indices for measuring the combination of CG/DG with respect to its sustainability and resilience to handle unforeseen events. It also provides a national roadmap towards identifying the right path for-ward in terms of which combination of DG resources and CG would make sense.  
James Momoh, Howard University 04/13/12 549.41 KB PDF 12-08
Standards Associated with Power System Dynamics
PSERC Future Grid Initiative Webinar Series Slides, May 22, 2012

In this presentation and accompanying white paper, we will first review the standards currently used by the industry to ensure stable operations and acceptable quality of service. We will next pose the problem of designing specifications and protocols for enabling more flexible management of diverse energy resources without endangering system stability. The role of protection, control and communications in implementing stable operations in future electric energy systems operated in highly uncertain environment will be particularly assessed. Examples of open questions and possible future solutions will be provided in this document.  
Marija Ilic, Carnegie Mellon Univ. 05/22/12 2.02 MB PDF 12-09
Information and Computation Hierarchy
PSERC Future Grid Initiative Webinar Series Slides, June 5, 2012

The electric grid in the United States has evolved over the past century from a series of small independent community-based systems to one of the largest and most complex cyber-physical systems today. The established conditions that made the electric grid an engineering marvel are being challenged by major changes, the most important being the social economic incentive to reduce carbon emissions, a greater utilization of renewable energy, and the need to increase consumer participation.

This talk discusses aspects of the computation and information architectures of a future smart grid that is potentially highly dynamic, heterogeneous, and interactive. We discuss some of the fundamental issues on the information gathering, fusion, and decision architectures that exploit the available and timely information.  
Lang Tong, Cornell Univ. 06/05/12 4.32 MB PDF 12-10
Renewable Electricity Futures
PSERC Webinar Slides, September 4, 2012

RE Futures is an initial investigation of the extent to which renewable energy supply can meet the electricity demands of the contiguous United States over the next several decades. This study explores the implications and challenges of very high renewable electricity generation levels: from 30% up to 90% (focusing on 80%) of all U.S. electricity generation from renewable tech-nologies in 2050. At such high levels of renewable electricity penetration, the unique characteris-tics of some renewable resources, specifically geographical distribution and variability and un-certainty in output, pose challenges to the operability of the nation's electric system. The study focuses on key technical implications of this environment from a national perspective, exploring whether the U.S. power system can supply electricity to meet customer demand on an hourly basis with high levels of renewable electricity, including variable wind and solar generation. The study also identifies some of the potential economic, environmental, and social implications of deploying and integrating high levels of renewable electricity in the U.S. The full report and associated supporting information is available at:  
Trieu Mai, National Renewables Energy Lab 08/27/12 1.32 MB PDF 12-11
Epoxy Based Nanodielectrics for High Voltage Insulation
PSERC Webinar Slides, September 18, 2012

Polymeric materials containing nanometer (nm) size particles are being introduced to provide compact shapes for low and medium voltage insulation equipment. The nanocomposites may provide superior electrical performance when compared with those available currently, such as lower dielectric losses and increased dielectric strength, tracking and erosion resistance, and sur-face hydrophobicity. All of the above mentioned benefits can be achieved at a lower filler con-centration (< 10%) than conventional microfillers (40-60%). Also, the uniform shapes of nanofillers provide a better electrical stress distribution as compared to irregular shaped microcomposites which can have high internal electric stress, which could be a problem for de-vices with active electrical parts. Improvement in electrical performance due to addition of nanofillers in an epoxy matrix has been evaluated in this PSERC research project. The results will be presented.  
Ravi Gorur, Arizona State 09/14/12 2.08 MB PDF 12-12
Modeling, Analysis and Deployment of High PV Penetration in a Distribution System
PSERC Webinar Slides, October 2, 2012

This webinar will describe the modeling and analysis of a distribution feeder in Arizona with a high penetration of distributed photovoltaic systems along with preliminary validation with field measurements. The model corresponds to an actual PV and DAS installation by Arizona Public Service as part of the Flagstaff Community Power project in a 10 mile long feeder with about 3300 customers and about 125 rooftop residential PV systems and two large scale PV systems. The total installed PV capacity of 1.5 MW corresponds to more than 30% peak penetration. Modeling of the feeder conductors and equipment using GIS data, loads using AMI data and PV systems using measured PV output from extensive data acquisition systems will be presented in detail. Interesting case studies using time series power flow under different feeder conditions and protection coordination will be presented.  
Raja Ayyanar, Arizona State 10/01/12 2.46 MB PDF 12-13
Integration of Storage Devices into Power Systems with Renewable Energy Sources
PSERC Webinar Slides, October 16, 2012

The recent advances in the state of the art of storage technology have led to wider deployment of storage technologies. In this project we developed models and a simulation methodology for ana-lyzing the effects of storage integration on transmission constrained electricity markets over longer-term periods. Our goal was to assess the use of storage as a system resource that provides the flexibility to mitigate the effects of integrating variable renewable energy sources into a pow-er system while improving overall system reliability. Storage also has the ability to provide energy and capacity-based ancillary services. In this webinar, we describe how the storage assessment methodologies can be implemented into practical tools to quantify how storage addresses the uncertainty of variable generation resources.  
George Gross, Univ. of IL/Urbana 10/16/12 1.54 MB PDF 12-14
Future Grid Initiative White Papers on the Information Hierarchy for the Future Grid: Conclusions and Research Directions
PSERC Webinar Slides, November 6, 2012

The effective transformation of the grid requires decisions based on identification and solution of major operating, planning, workforce, economic and public policy challenges. PSERC is conducting the DOE-funded project entitled "The Future Grid to Enable Sustainable Energy Systems.” As a part of this Future Grid Initiative, in the Spring of 2012, a collection of white papers were written and webinars were presented on broad topics. Sauer will summarize the conclusions of those white papers on Information Hierarchy and identify significant future research directions.  
Peter Sauer, Univ. of Illinois at Urbana-Champaign 11/06/12 1.77 MB PDF 12-15
Interoperability Requirements as an Enabler of Smart Grid Integrative Research
PSERC Webinar Slides, November 13, 2012

This webinar explores interoperability of standards and technical solutions as an important engi-neering objective. Sustainable deployment of integrative smart grid solutions depends on whether interoperability requirements facilitating the solutions are achieved in practice. Published in-teroperability requirements enable integrative research aimed at practical and successful smart grid deployment. Two examples are used to illustrate the importance of interoperability-related research from recently completed PSERC projects: Verifying Interoperability and Application Performance of PMUs and PMU-Enabled IEDs at the Device and System Level and The Smart Grid Needs - Model and Data Interoperability, and Unified Generalized State Estimator. The National Institute of Standards and Technology’s plays an important role in coordinating the work of the Smart Grid Interoperability Panel (SGIP) in developing interoperability of standards and technical solutions with the assistance of thousands of professionals, many of whom are PSERC members. The transformation of SGIP into a global public-private partnership as of Jan-uary 1, 2013 is discussed. This seminar is provided to help R&D organizations and Academia understand value proposition of SGIP membership and is tuned with the timeline for other SGIP promotional activities including the series of SGIP webinars to promote membership in 2013.   
Mladen Kezunovic, TAMU 11/12/12 5.26 MB PDF 12-16
Grid Enablers of Sustainable Energy Systems: Conclusions and Research Directions
PSERC Future Grid Initiative Webinar Series Slides, November 27, 2012
The effective transformation of the grid requires decisions based on identification and solution of major operating, planning, workforce, economic and public policy challenges. PSERC is conducting the DOE-funded project entitled "The Future Grid to Enable Sustainable Energy Systems.” As a part of this Future Grid Initiative, in the Spring of 2012, a collection of white papers were written and webinars were presented. Jim McCalley will summarize the conclusions of those white papers and identify significant future research directions on the topic "Grid Enablers of Sustainable Energy Systems" (Primary and Secondary Control for High Renewable Penetrations; Toward Standards for Dynamics in Electric Energy Systems; Future Grid: The Environment; National Transmission Overlay: Characterization, Benefits & Paths Forward; Distributed and Centralized Generation - A Comparison Approach).  
Jim McCalley, Iowa State Univ. 11/26/12 388.52 KB PDF 12-17
Using Active Customer Participation in Managing Distribution Systems
This webinar will explore future distribution system operations with active consumer participation. Future distribution level actions (such as distributed generation, electric vehicle changing, and automated feeder reconfiguration) have the potential to affect the condition of distribution level components and distribution system reliability. The time-varying nature of these resources will alter the operating patterns of distribution-level equipment (such as voltage regulators and distribution transformers) and, thus, will affect their condition. Demand-side management (DSM) through active consumer participation with dynamic feedback from the customer side, together with energy storage, has the potential to improve distribution system reliability. An approach to manage the distribution system assets under distributed generation, storage, and active consumer participation will be explored in this webinar. Control strategies to achieve certain reliability benchmarks will be presented as examples.

PSERC Webinar Slides, December 11, 2012  
Visvakumar Aravinthan, Wichita State 12/10/12 5.64 MB PDF 12-18