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| 06-10 | Executive Forum on Solutions to Transmission Investment
PSERC Executive Forum, April 21, 2006, in Chicago, IL. This Forum provided an opportunity for senior managers and PSERC experts to identify critical challenges and possible solutions to (1) transmission investment and pricing issues, and (2) issues related to enhancing grid reliability. The report summarizes participant ideas on the challenges to be overcome and the solutions for doing so. | | 11/15/2006 | 168.9k | PDF |
| 06-44 | The Texas Energy-Only Resource Adequacy Mechanism
Special paper for PSERC member viewing. Uploaded: 10/23/06. | Shmuel Oren | 11/28/2006 | 165.3k | PDF |
| 08-04 | Risk of Cascading Outages
Cascading outages in power systems are costly events that power system operators and planners actively seek to avoid. Such events can quickly result in power outages for mil-lions of customers. Although it is unreasonable to claim that blackouts can be completely prevented, we can nonetheless reduce the frequency and impact of such high conse-quence events. Power operators can take actions if they have the right information pro-vided by tools for monitoring and managing the risk of cascading outages. Such tools were developed in this research project by identifying contingencies that could initiate cascading outages and by determining operator actions to avoid the start of a cascade. Power system planners can also take actions if they have knowledge of the effects of transmission investments on the risk of cascading blackouts. In this project, system risk assessment tools were developed to estimate the overall risk of cascading transmission line overloads. The goal of this line of research on the risk of cascading outages is the creation of new tools that power system operators and planners can use to enhance sys-tem reliability.
Parts A and B of the Final Report from PSERC Project S-26. Uploaded: February 27, 2008. | Ian Dobson and Jim McCalley | 4/10/2008 | 4.4M | PDF |
| 08-05 | Transient Testing of Protective Relays: Study of Benefits and Methodology
The operational security of the power system depends upon the successful performance of the thousands of relays that protect the system from cascading failures, that protect equipment, and that help balance load with generation when system frequency is too low or too high. The failure of a relay to operate as intended may jeopardize that stability of the entire system and equipment in it. In fact, major system failures after a disturbance are more likely to be caused by unintended protective relay operation rather than by the failure of a relay to take an action at all. Appropriate relay testing provides one line of defense against relay failures. Relay testing improvements need to continue because of the new demands placed on relays from power system conditions that are more variable in the past, because of high customer expectations for power delivery reliability, and because of changing relay technologies.
Final report for PSERC project T-30. Uploaded: April 10, 2008. | Mladen Kezunovic, Sakis Meliopoulos, Ward Jewell | 4/10/2008 | 4.2M | PDF |
| 08-06 | Optimal Allocation of Static and Dynamic VAR Resources
In recent years, new attention has been given to use of volt-amperes reactive (VAR) resources to support power system operation. The engineering questions are how much VAR resources are needed, where should they be located, and what should the allocation be between static VARs that provide constant VARs and dynamic VARs that can be controlled in real-time. The project’s objectives were (1) to develop realistic models that accurately model system dynamics and capture voltage recovery phenomena, (2) to develop criteria for selection of the optimal mix and placement of static and dynamic VAR resources in large power systems based on modeling results using the tools developed part, and (3) to create a unified optimization model for minimizing the deployment of static and dynamic VAR resources while meeting the criteria. The project was accomplished in five integrated steps described in the four volumes of this report. A fifth volume is still being prepared and will be distributed separately. A test system provided by Entergy was used as a common platform to test the tools.
Final report for PSERC project S-24. Uploaded: April 1, 2008. | Sakis Meliopoulos | 3/31/2008 | 6.8M | PDF |
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