A5031604218- Optimal Power Flow Distribution
- Power Systems and Technologies
- Smart Grid Energy Management
- Islanding Detection in Power Systems
- Microgrid Control and Optimization
- Lightning and Electromagnetic Phenomena
- Power Systems Fault Detection
- Power System Reliability and Maintenance
- Thermal Analysis in Power Transmission
- Smart Grid Security and Resilience
- Smart Grid and Power Systems
- Power System Optimization and Stability
- HVDC Systems and Fault Protection
- Urinary Bladder and Prostate Research
- Real-time simulation and control systems
- High-Voltage Power Transmission Systems
- Urological Disorders and Treatments
- Urinary Tract Infections Management
- High voltage insulation and dielectric phenomena
- Electrical Fault Detection and Protection
- Renal cell carcinoma treatment
- Pelvic floor disorders treatments
- Bladder and Urothelial Cancer Treatments
- Genital Health and Disease
- Advanced Battery Technologies Research
Pacific Northwest National Laboratory
2017-2024
Washington State University
2023
Tallaght University Hospital
1998-2017
University of Pittsburgh
2013-2016
Boston Children's Hospital
2003-2014
Robotics Research (United States)
2011
Yonsei University
2011
National Rehabilitation Hospital
2010
IDEX Corporation (United States)
2006-2009
Kenrick–Glennon Seminary
2007
For nearly 20 years, the Test Feeder Working Group of Distribution System Analysis Subcommittee has been developing openly available distribution test feeders for use by researchers. The purpose these is to provide models systems that reflect wide diversity in design and their various analytic challenges. Because utility accessibility, have used a range research, some which outside original scope intended uses. This paper provides an overview existing feeder clarifies specific challenges...
An open-source distribution system simulator has been developed for distributed resource planning, harmonic studies, neutral-earth voltage volt-var control and other special applications. The software includes several means of interfacing user code, including compiled dynamic link library, COM automation, text scripting. Co-simulation interfaces are under development with proprietary vendor-supplied models, communication overlays. simulator, called OpenDSS, used to conduct smart grid...
The emphasis of this article is on distributed generators that are interconnected to with utility distribution systems. These will generally be units smaller than 10 MW. Larger connected directly transmission facilities and most likely commercial power producers. installed systems typically no larger 1 or 2 would mostly by the itself end users. This method generation commonly referred as "distributed generation" (DG).
Distributed generation (DG) can be incorporated into distribution planning as an option along with traditional feeder and substation options. In place of rigid capacity rules, the process needs to incorporate more detailed simulations constraints customer damage costs because utilities now assume risk. Planning tools need simulate load variations, contingencies, dispatch control action accurately determine limits related costs. This is especially important when considering DG siting have...
Distribution systems have been designed to optimize the delivery of power in one direction. The installation distributed generation (DG) significant capacity will result some conflicts with operation system. A selected set is described. One conflict might changes overcurrent device timing and reach that degrade reliability quality for other customers on feeder. Interconnection requirements can increase risk equipment damage due ferroresonant overvoltages. Transformer connections DG involve a...
Transactive energy (TE) has been recognized as a promising technique for integrating responsive loads and distributed resources well advancing grid modernization. To help the industry better understand value of TE compare different schemes in systematic transparent manner, comprehensive simulation-based valuation method is developed. The following salient features: first, it formally defines scenarios, use cases, baseline, metrics; second, an open-source simulation platform transactive...
Photovoltaic (PV) generation is increasingly prevalent throughout power distribution systems. The increased presence of this variable resource can cause adverse impacts to the system due cloud-induced output fluctuations. These be mitigated by allowing PV inverters absorb and provide reactive in response voltage swings. Additionally, properly chosen settings improve feeder metrics such as losses, number regulator tap changes, customer consumption, variability. This paper will assess impact...
Heating, Ventilation, and Air Conditioning (HVAC) systems contribute significantly to a building's energy consumption. In the recent years, there is an increased interest in developing transactive approaches which could enable automated flexible scheduling of HVAC based on customer demand electricity prices decided by suppliers. Flexible make it prime source for participation residential response or systems. Therefore, significant identify optimal strategy control this article, reducing cost...
To compare treatment outcomes in symptomatic and incidental renal cell carcinoma (RCC) with specific interest the role of radical nephrectomy.The records 189 patients a clinical diagnosis RCC were reviewed. The mode presentation, tumour size, grade stage at presentation correlated final outcome, as measured by disease-free overall survival patients.The rate detection was 15%; tumours lower incidentally detected had significantly longer than those (P < 0.05).The increased should further...
Properly sited distributed generation (DG) can increase the feeder capacity limit, but this does not necessarily produce an improvement in system reliability or power quality, as quantified by standard indices. The DG may have a positive impact on through faster restoration following fault. also improve for owner, and reduce severity of voltage sags near DG. Indices normalized to number customers dilute these benefits. often has negative indices sympathetic tripping, required changes utility...
This paper considers the incorporation of voltage measurements in a branch-current-based state estimation (BCSE) program. Original BCSE is designed to include only power and current measurements. The motivation for enhancing that with adoption large scale automated meter infrastructure (AMI) technologies, will be available at distribution level. Hence, including these has potential improve accuracy estimation. elaborates technical approach taken accomplish this task, test results assessment.
Modern electric power distribution systems are data rich and include growing numbers of distributed energy resources automation. To take advantage automation manage penetrations resources, utilities need applications for planning operations that use all available may incorporate approaches to operate control. The industry would benefit from management based on a common platform makes each type interchangeable. This paper describes an approach enabling cost-effective development deployment...
The distributed generation (DG) owner's reliability, measured by the sustained interruption indices, should improve markedly if DG has been installed and operated properly. However, because this is just one customer out of hundreds or thousands on feeder, improvement does not show up utility's traditional reliability indices. There can be a positive negative impact utility-level indices in these cases: reduce number duration interruptions automated switches are available to restore power...
This paper reports a study of distribution line lightning performance, using computer simulations overvoltages. The results previous investigations are extended with detailed model induced voltages from nearby strokes, coupled into realistic power system model. also considers the energy duty distribution-class surge arresters exposed to direct strokes. principal result is that widely separated pole-top can effectively protect induced-voltage flashovers. means strokes need not be significant...
No AccessJournal of UrologyClinical Urology: Original Articles1 Mar 1998THE ROLE OF ORCHIECTOMY IN TH MANAGEMENT POSTPUBERTAL CRYPTORCHIDISM EAMONN ROGERS, SEAMUS TEAHAN, HUGH GALLACHER, MICHAEL R. BUTLER, RONALD GRAINGER, T.E.D. MCDERMOTT, and JOHN A. THORNHILL ROGERSEAMONN ROGERS , TEAHANSEAMUS TEAHAN GALLACHERHUGH GALLACHER BUTLERMICHAEL BUTLER GRAINGERRONALD GRAINGER MCDERMOTTT.E.D. MCDERMOTT THORNHILLJOHN View All Author Informationhttps://doi.org/10.1016/S0022-5347(01)63752-2AboutFull...
Distributed generation (DG) is attracting much interest as a means to more economically achieve additional capacity. Traditional distribution planning methods are often inadequate for determining if and when it economical consider DG options instead of the familiar substation feeder upgrades. New computer tools needed help planner better understand true economic impact each alternative. This paper describes methodology performing that also permits incorporation such diverse improving...
The branch-current-based state estimation (BCSE) method is a novel approach to solve distribution (SE). However, without suitable topology error processing for BCSE, the value of BCSE will be degraded in real world applications. Therefore, this paper introduces identification based on use normalized residuals resulting from employment method. effectiveness proposed demonstrated and addition, results obtained by using are presented paper.
This paper presents symmetrical component calculations for expected single line-to-ground fault (SLGF) currents and associated over voltages on a typical distribution circuit with solar photovoltaic (PV) inverter-based generation. The analysis is based representing the PV inverter as current source. proposes an ideal Norton's equivalent model inverter. Results show that ground source in interconnection transformer will reduce temporary overvoltage (TOV) seen feeder, when backfeeds SLGF....