Power System Engineering Inc.

Marietta, OH, United States

Power System Engineering Inc.

Marietta, OH, United States
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On Wednesday, May 10 at 9:15 am in room 212 A/B, Dennis Troxel, Principal Sales Engineer for Transition Networks, will speak as part of a track entitled "SCADA Communications and AMI Evolution." The track will cover five key Utility Communications areas including Serial Convergence in an "Open" Network, Security Surveillance with Advanced PoE and IP Thermal Technology, Preserving Legacy Infrastructure for new IP/Ethernet Broadband Connectivity, 4G LTE used as a Backup or Primary Connection and AMI Evolution. Troxel will be joined by Mark Bowman of Georgia System Operations Corp., Billy Wise of Gresco and Rick Schmidt of Power System Engineering, Inc. Transition Networks' utility and industrial product offering include media conversion, serial device servers, Layer 2 aggregation, and edge switches. Products that will be featured at their booth (#920) during the UTC Telecom & Technology 2017 show include: "Integrating SCADA with IP networks for better management and cyber security visibility is a critical issue facing utilities today. It's a complicated challenge, and we appreciate the UTC team for inviting us to help shed some light on the topic," said Scott Otis, President of Transition Networks. "Dennis brings nearly 40 years of experience in the telecommunications space, providing a unique perspective for conference attendees." About Transition Networks, Inc. Transition Networks, Inc. is an industry leader with 30 years of experience designing data network integration products that deliver the bandwidth, distance and security demanded by today's networks while future proofing for tomorrow. Offering support for multiple protocols, any interface, and a multitude of hardware platforms, including Hardened Ethernet, Carrier Ethernet, CWDM, 1G/10G Ethernet, SFPs, PoE and PoE+, Transition Networks gives you the power to deliver and manage traffic reliably over fiber in any data network – in any application – in any environment. Based in Minneapolis, Transition Networks distributes hardware-based connectivity solutions exclusively through a network of resellers in 50 countries. Transition Networks is a Communications Systems Inc. company (NASDAQ: JCS). For more information, visit us at www.transition.com. Statements regarding the Company's anticipated performance in 2017 are forward-looking and involve risks and uncertainties, including but not limited to: competitive products and other factors discussed from time to time in the Company's filings with the Securities and Exchange Commission. To view the original version on PR Newswire, visit:http://www.prnewswire.com/news-releases/transition-networks-discusses-next-generation-scada-networks-at-utc-telecom--technology-2017-300453956.html

Triplett J.M.,Power System Engineering Inc.
Proceedings - 2017 IEEE Rural Electric Power Conference, REPC 2017 | Year: 2017

Distributed Energy Resources (DER)-costs continue to decrease, technology continues to advance and standards continue to evolve, and of course, new DER interconnections continue to occur. The future of DER has never looked better, but the uncertainty that it brings to the utility industry is a challenge that needs to be continually addressed in a collaborative fashion. The future may likely include much more integration of DER into utility systems and interaction between the consumer and the utility. How the utility industry can better prepare now for this future is an important topic for discussion. A full revision of the cornerstone DER interconnection standard (IEEE Standard 1547) is presently underway and is expected to be completed sometime in 2017. Several proposed changes to this standard have the potential to significantly change how DER and the utility system interact. Additional information and requirements related to voltage and frequency ride-Through are expected to be included, possibly going so far as making certain voltage and frequency ride-Through provisions mandatory within certain parameters. Additionally, DER may be allowed to specifically provide active voltage and dynamic reactive power support to the utility system, and how that is achieved and monitored may be defined within the standard. DER interest groups have long touted these potential grid support benefits that DER may be able to provide. Obtaining these capabilities and realizing these benefits, though, will require greater interoperability and interfaces between the utility and DER. IEEE Standard 2030 is another closely related and evolving standard that builds on the concepts of interoperability and DER/utility interfaces. Together, the evolution of these two standards will have a profound effect on the future of DER, its integration, and the operation and planning of utility systems. As the proliferation of DER continues, there is the potential for radical changes to utility infrastructure and the business models in general. This paper will explore what the future of DER might look like for consumers and utilities and how the industry can better prepare for it now. High penetrations of DER, hosting capacity calculations and interfaces between utilities and DER will be discussed. © 2017 IEEE.

Chen S.,University of Maine, United States | Onwuachumba A.,University of Maine, United States | Musavi M.,University of Maine, United States | Lerley P.,Power System Engineering Inc.
Clemson University Power Systems Conference, PSC 2016 | Year: 2016

In order to assess the reliability of power systems, System Planners must conduct both steady-state and stability simulations. The transient stability simulation of the reliability studies usually involve extensive variations and thus generate large amounts of data. Conventional analysis methods include visual examination of the simulation data plots to classify the severity of disturbances, objectively decide to apply the logical relationships between criteria. This paper, presents a quantification method for power system performance to achieve a more efficient stability analysis assessment. By using a criteria function matrix and a logic matrix, the proposed method evaluates the performance of each contingency and dispatch numerically and gives the overall stability assessment result. Damping and voltage sag criteria functions are applied for identification of the worst fault. This method will free engineers from tedious, time consuming and error-susceptible offline visual analysis and yield significantly more objective and quantified results. © 2016 IEEE.

Triplett J.,Power System Engineering Inc. | Rinell S.,Otsego Electrical Cooperative Inc. | Foote J.,Otsego Electrical Cooperative Inc.
Papers Presented at the Annual Conference - Rural Electric Power Conference | Year: 2010

Distribution system losses are a reality due to the physics associated with various system components that make up any power system. Techniques for analyzing losses are not new but have primarily focused on evaluating system losses during certain peak demand periods due to limitations on available data. Such "traditional" analyses estimate energy losses using industry accepted approaches that rely heavily on assumptions and that focus only on peak and average demands on major system components. Another potential shortcoming of a traditional loss analysis is the level of system detail evaluated. A gross analysis in terms of system components such as substation power transformers, distribution lines, distribution transformers, secondary conductors, etc. is typical. The disadvantage is that the relative contribution of various system components to the overall system losses may not be defined to the level required to truly evaluate mitigation techniques, especially when time periods other than peak demand times are being evaluated. Given the limitations of traditional loss evaluations, this paper will explore enhanced loss evaluation techniques utilizing interval load data collected from a deployed Advanced Metering Infrastructure (AMI) system and detailed system data from an available Geographic Information System (GIS). The test case system used to present this approach was a distribution cooperative with these systems presently in place. © 2010 IEEE.

Ivanov C.,Power System Engineering Inc. | Getachew L.,Power System Engineering Inc. | Fenrick S.A.,Power System Engineering Inc. | Vittetoe B.,ICF Consulting
Utilities Policy | Year: 2013

We examine the demand impact of a smart meter pilot conducted by Connexus Energy from 2008 until 2010. We focus on the amount of peak time energy use reduction, either through forgone usage or load shifting to off-peak times, as a result of enabling technologies in the form of in-home displays and smart thermostats. The in-home display allows the treatment group members to voluntarily alter their power use during "red alert" (critical peak) days. The smart thermostats also installed for the treatment group enable the utility to reduce AC usage of that group during red alert days by remotely turning up the temperature setting by 3 degrees Fahrenheit (°F) (i.e., a form of direct load control). We use hourly fixed effects models to examine peak time energy use changes in the summer of 2010. We find that treatment group members reduced their peak time energy use relative to the control group, which had no in-home displays or smart thermostats. Treatment group members who had the enabling technologies used, on average, 0.47 less kW, or 15% less energy, during peak hours on an average red alert day. © 2012 Elsevier Ltd.

Triplett J.M.,Power System Engineering Inc. | Kufel S.A.,Power System Engineering Inc.
Papers Presented at the Annual Conference - Rural Electric Power Conference | Year: 2012

Conservation Voltage Reduction (CVR) has been a hot topic in the industry for some time, particularly during the last few years. A number of methods and strategies have been employed on utility distribution systems to effectively lower the voltage with the objectives of decreasing coincident peak demand and/or energy over time. © 2012 IEEE.

Fenrick S.A.,Power System Engineering Inc. | Getachew L.,Power System Engineering Inc. | Ivanov C.,Power System Engineering Inc. | Smith J.,Power System Engineering Inc.
Energy Journal | Year: 2014

In this paper, we provide demand impact estimates of a critical peak pricing (CPP) program tested in the summer of 2011. We develop econometric models that examine demand responses of participants in "opt-in," "opt-out," and "tech only" CPP programs. Opt-out customers received bill protection while tech only customers received in-home displays alerting them of critical peak times, but they were not placed on the CPP rate. Our results indicate that opt-in customers reduced critical peak period demand the most while opt-out customers' appear to attenuate their reduction because of bill protection. Additionally, we refine our findings using participant survey responses. In general, we find participants in test groups whose environmental or "green" attitude is high had the strongest demand response. © 2014 by the IAEE. All rights reserved.

Chambers T.,Power System Engineering Inc.
Papers Presented at the Annual Conference - Rural Electric Power Conference | Year: 2016

An approach for arc flash hazard analysis in the presence of distributed resources based on the use of TCC curve equations is proposed in this paper. Determining the available arc flash incident energy and appropriate protective clothing to wear while working on an energized distribution feeder can be a time consuming task. Utilities typically refer to a single, worst-case incident energy per feeder over its entire length to simplify clothing requirements, it is therefore necessary to determine the maximum incident energy present on all feeders that may be worked on energized. The interplay between arcing current and over current protection characteristics makes determining the maximum incident energy and the location of its occurrence a lengthy problem to solve. This is further complicated to a significant degree in the presence of distributed resources. This paper introduces a proposed method that removes the need for an iterative approach in calculating incident energy at several locations on a feeder in a systematic attempt to determine the maximum energy, and introduces the concept of plotting incident energy as a function of system impedance (and so feeder length). This is achieved via an interface to the IEEE 1584 Arc Flash Hazard Calculator correlating discreet impedance increments and available fault current to the time component of TCC curve equations, and plotting the associated arc flash incident energy. © 2016 IEEE.

Kufel S.A.,Power System Engineering Inc.
Papers Presented at the Annual Conference - Rural Electric Power Conference | Year: 2015

The number of applications for Distributed Generation (DG) interconnections received by utility system operators is increasing every year. As the various DG technologies mature and the cost per kilowatt of generation goes down, utilities may receive more applications for generation interconnections large enough to require detailed system impact analysis before approval. Many utilities are already performing their own system impact studies, or are planning to begin doing so in the near future. A number of computer-based analysis programs are available that can model generation resources, with varying degrees of complexity. Utilities that are already performing their own studies need to be completely familiar with all of the capabilities of the particular tool or tools they use, and should have a reliable procedure in place for performing their analyses. This paper will examine the process of performing a DG system impact study with a computer-based system modeling tool. Topics of discussion will include information and data needed for accurate modeling, using various types of generator models, correctly adding generation to existing models, types of analysis that should be performed, common errors in modeling and analysis, and general best practices for completing system impact studies. Practical experience gained from performing many DG studies for utilities using several widely-available modeling tools will be shared. © 2015 IEEE.

Jeffrey M. Triplett P.E.,Power System Engineering Inc.
Papers Presented at the Annual Conference - Rural Electric Power Conference | Year: 2014

Distributed Generation (DG) interconnections with utility systems are becoming increasingly common. After a DG application has been processed, all needed studies completed and any required interconnection facilities constructed to accommodate the safe and reliable parallel operation of the DG facility, testing and commissioning is required. This paper will describe typical inspection, testing and commissioning procedures for a range of DG installation sizes and types. Practical experience gained from real-world installations and best practices for utilities will be shared in the form of a sample check list and procedure for smaller inverter-based systems. © 2014 IEEE.

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