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The following topics are dealt with: transmission and distribution system planning; wind generation; reliability; emergency response; disaster; FACTS; HVDC; power quality; protective relaying; transformer; circuit breakers; cables; insulators; switchgear; fuses; tower; poles; conductors; electric machines; drives; and substation.
Line reliability is highly influenced by weather, especially from thunderstorms. This presentation will provide an update on activities of the IEEE task force on weather normalization of reliability indices. Topics include sources of lightning and other weather data, most appropriate geographic and time scales, most influential weather parameters, ways to correlate with weather data, and how to normalize...
The locational marginal pricing (LMP) methodology has become the dominant approach in power markets. Moreover, the DC optimal power flow (DCOPF) model has been applied in the power industry to calculate locational marginal prices (LMPs), especially in market simulation and planning owing to its robustness and speed. In this paper, first, an iterative DCOPF-based algorithm is presented with the fictitious...
Summary form only given. Poor distribution reliability is often caused by failure to build the system to standards and/or failure to establish reliable standards. The reliability and asset management group is constantly chasing one or both of these failures. Many utility reliability programs make the system reliable later, and at a higher cost. In many respects, utility reliability programs, although...
Summary form only given. This paper employs the trajectory sensitivity analysis (TSA) technique for optimal placement of flexible AC transmission systems (FACTS) devices that can be used as online controllers to improve the transient stability of multi-machine power systems. The impact of non-optimal placement of a controller has also been considered and discussed. In this study, we have used the...
Summary form only given. The key of reactive power planning (RPP), or Var planning, is the optimal allocation of reactive power sources considering location and size. Traditionally, the locations for placing new Var sources were either simply estimated or directly assumed. Recent research works have presented some rigorous optimization-based methods in RPP. This paper will first review various objectives...
Summary form only given. This paper highlights case studies of power quality troubleshooting that was not capable of solving the power quality problem with measurements simply taken to comply with standards. It will further show that by providing engineers with data beyond the standards, an unprecedented number of power quality events can not only be captured, but are definitively solved.
IEC 61850 is a recently created international standard initially developed for communication networks and systems in substations. However IEC 61850 provides a very flexible solution framework for automation applications outside of the substation as well. This presentation describes how IEC 61850 concepts can be applied for outdoor feeder automation applications.
Summary form only given. An analytical description combined with finite element calculations of the current displacement caused by short-circuit current impulses in one- and two dimensional conductor models is presented. It is shown that in many cases the Joule-integral used in the technical practice gives a false representation of the thermal stress in the conductors and contacts. A simplified method...
Summary form only given. Mutual coupling poses difficult problems witnessed during single phase to earth fault, in transmission line protection. In parallel lines on the same right of way, mutually coupled zero-sequence circuits cause error in the apparent impedance seen by the relay. This causes the distance relay at one end of the faulty line to over-reach while the one at the other end to under-reach...
After implementing outage management and reporting systems, many companies now have substantial access to abroad set of reliability metrics and outage history. This provides companies much better information to identify metrics that may drive specific performance and focus greater on areas warranting improvement. It further supports optimizing the methods to achieve that improvement. One company uses...
Summary form only given. The purpose of this paper is to address new philosophies as well as overcurrent devices which can greatly affect reliability at virtually no additional cost. Areas of interest include: "fuse save vs. fuse blow", automation, electronic recloser automatic loop schemes, single phase tripping, lateral fusing philosophy, sequence coordination, fault impedance considerations,...
The Tehachapi Renewable Transmission Project (TRTP) is a 4,500 MW transmission project connecting the wind energy rich Tehachapi wind resource area north of the Los Angeles Basin, into the Southern California Load Center. The full project has been approved by the CAISO Board, a Certificate of Public Convenience and Necessity (CPCN) has been issued by the CPUC for the first phase of the Project, and...
IEEE 1159 is a recommended practice for monitoring electric power quality. Among the clauses within this standard is a section describing the application techniques for power quality monitoring. When applying a power quality monitor within a facility, many issues must be considered, such as the objectives to be achieved, understanding of the power system and loads, safety, the location of monitoring...
The panelist will discuss the recent developments responsible for the planning, design and implementation of plusmn 800 kV HVDC transmission systems. The focus of the presentation will be overhead HVDC transmission lines. Following a brief review of the research and testing that has been carried out so far for the electrical design of HVDC lines, the operating experience of existing transmission lines...
Storm response is a difficult task because of Mother Nature's unpredictability. However, there are steps utilities can take to ensure they have the right products on hand to restore power quickly, without being left with excess inventory after power is restored. In addition to building good supplier relationships and planning ahead, utilities should tap into new, innovative products that enable rapid...
The panel discussion on gas insulated technology is based on a tutorial created by the PES Substations Committee over the last years. In the tutorial leading experts from all interested industry contributes with their knowledge and experiences in the tutorial. Until today more than 10 times the tutorial has been presented.
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