Microsoft word - exelonexperienceportfolioforkathleenewilliams.doc

Senior Analyst IT – IT Real-Time • Power Systems Modeling: Updated the network model of transmission
lines, substations, generators, transformers, switches, reactors, and other equipment. The network model is used by the power system security analysis functions of the energy management systems (EMS) for real-time analysis and general studies. Modeling of power system network is used to identify contingencies, alarms, flow violations, voltage violations, and monitor for reliability and protection the power system. My experience has been specific with CIM (Common Information Model) and ABB’s CIM DE Toolkit for Network Manager (Ranger). • State Estimator: I have studied the mathematical and technical
documentation for state estimation and used this knowledge to creatively apply new modeling techniques to improve the state estimation in parts of the network model. I have been a point of contact for state estimation issues for my company and have responded to off-hours support for this important part of the Energy Management Systems. My role has been to provide speedy response to debug the cause of the state estimator failure in the real-time systems operations. State Estimation is integral to power systems security analysis and operating the power system in a reliable and equipment-safe mode. My duties in the IT Real-Time role have allowed me to quickly resolve state estimator (SE) problems and perform corrective actions such as improved network modeling to improve the service reliability of the SE. Also, I have self-studied books and documentation on the mathematics and applicability of the state estimation algorithm to the real-time analysis and energy management system. • Equipment Ratings Comparison Tool: I have developed, analyzed, and
used a MS ACCESS database application in a multi-user environment to allow the comparison of equipment ratings between engineering, operations, and an RTO. I have self-learned and then applied programming such as XML, XSLT, VBA, SQL, Oracle, and other database applications to produce an application in Microsoft Access. I have created user-friendly forms with background processes to download, process, and save data according to command buttons. This project was a rewarding challenge because I had to rebuild the application from scratch, learn new software-coding techniques, and independently build, test, and then analyze the tool. • SCADA One-lines: I am experienced with using one-line diagrams and
have made edits to the pictures using a picture editor program. I have been able to apply SCADA telemetry, network-calculated, and run-time database values to one-line diagrams and picture displays in the network manager applications. I have been also creative to investigate display errors by looking into the activex and “background” properties of vendor base-line displays that are used by the power systems analysis functions. I have determined and reported multiple bugs caused by the vendor displays by investigating the background display source. Displays or one-line diagrams show important information regarding the operations and security of power systems. One-line diagrams are drawings of field equipment, transmission lines, substations, etc and show real-time or “calculated” telemetry of the current operating state of the system. • Bus Angles: I have applied the network analysis “calculated” state
variable phase angles to the bus bars and network calculated “voltage” magnitudes. These were placed on one-line diagrams or displays on a hidden layer to be displayed upon request. I used the picture editor application to apply changes to hundreds of displays and thousands of bus bars modeled. Bus angles are network analysis calculated values done by state estimation of the power system. • Transformer Impedance Modeling Discrepancies: I have determined
errors in the modeling process of transformers in the network model by observing input parameters in the design software and output parameters in the energy management system. I used my engineering knowledge and researched vendor documentation to learn of conversion problems of how the transformer model parameters were originally converted to a new system. I have worked with Engineering to obtain a template or process for computing the correct values of transformer impedances. • Study-State Estimator and Study Mode: I have studied vendor
documentation to better my understanding of study state estimator and interfaces to debug and analyze solvency issues. Work requests have been assigned to me to analyze and talk with the vendor regarding problems the subsystem of the energy management system failing. I have problem solved by analyzing real-time data versus saved “historian” data to find opportunities to fix duplicate points, incorrect points, and missing points of data values. Also I have identified and worked on improvements to the network model to help the solvency of study state estimator. • PI-Historian: I have analyzed data points such as MW, voltages, etc using
PI-Historian software by OSI. I have also downloaded data using the Excel Add-In to retrieve historical data for study and analysis. Analysis done was used to investigate outages, interfaces into Network Manager, data discrepancies, etc. PI-Historian is an application for recording and storing real-time telemetry from equipment in the power systems such as MW, voltages, breaker statuses, etc. The records are used to study the system for outage investigations, future outage studies, power systems analysis, audits, etc. • Bus Injection Load Schedules: Bus injections load schedules (BIL) is a
way of modeling the power flow through a load flow bus definition including bus bars, transformers, and other equipment. By better understanding and then estimating the equipment modeling parameters for equipment in the power systems network model, I was able to correct load flow estimation problems that was impacting power systems outage studies. I also identified network-modeling improvements to better the estimation of load flow. • Ratings 3 and 4 Project: I was responsible for the identification,
reporting, and update of over 1300 circuit limit updates in the network model and verification of them on the energy management system. Circuit limits are thermal ratings on transmission lines so that the transmission system is operated in a safe, reliable, and economical state. • Generation Database Support: Learned and provided backup support
for a Sybase application for generation unit data for reporting purposes and website interface. • Load Transfer Definitions: Provided data maintenance and edits to load
transfer definitions for the network manager. Load transfer definitions are important for the energy management system to allocate load when there is a loss of a transformer or outage. • SE Save Cases: Worked with and saved State Estimator (SE) and custom
DLF (Dispatcher’s Load Flow) cases in the energy management system. Used these cases as general support and to study performances of SE. • Pager Duty Support: Provided 24/7 support for technical issues with the
energy management system, network applications in the EMS, state estimator failures and issues, power systems security issues all in real-time operations. • Ranger SPR Proposal Writing: Documented, submitted, and tracked
service requests to vendor regarding vendor related issues and bugs with the energy management system applications. • Improve State Estimator Initiative: Proactively sought ways to improve
the performance and quality of energy management systems state estimator and power systems security applications. Determined gaps and areas of improvements and then worked on them. Created work requests to document the improvements and added them to the network manager. Creatively determined new modeling techniques with the help of EMS self- study and applied them. Received results in the form of better estimation and more accurate power system security results. • Summer Critical Projects: Worked on adding new transmission and
substation equipment projects into the network model and energy management system. Construction and Maintenance of the transmission system requires data maintenance and coordination with operations and energy management systems to insure safe and reliable operations when the system topology changes. • ABB Network Manager: My experience with energy management
systems has been specific to ABB’s network manager or Ranger application. I have had some vendor training but most of my knowledge has been built on work experience and self-study of the vendor documentation. • Contingency Analysis: I have had work experience with contingency
analysis (CA) in debugging issues in real-time operations. I’ve also had formal education in my master’s classes and projects in the algorithms and use of contingency analysis. I’ve used this education in my work place to offer support to real-time issues, sometimes in the early morning. I’ve creatively used my knowledge of parameter variation to solve many issues. I have programmed many school projects that use secure and optimal power flows with Contingency Analysis to insure a secure power system. • Dispatcher’s Load Flow: Provided support for the dispatcher’s load flow
(DLF) function of the energy management system. I’ve used this subsystem to run studies and debug issues with network topology and test custom displays, network model additions, etc on the EMS. • Voltage Stability: Have had some experience with this subsystem of the
EMS. Reviewed vendor documentation and materials to understand P-V curves and have studied this topic in my formal education to understand the technical and adverse affects of voltage collapse. Wrote a report for a master’s project discussing the voltage instability and cascade of the 2003 blackout. • Alarms: I am familiar with the alarms subsystem used by the energy
management system. Reported on the usage and generation of alarms by the EMS application. When debugging issues in real-time for operations, I have reviewed the alarms system to find root-causes of power systems security issues. I have been able to retrieve historical alarms for study and verification. • Event Notification: Retrieved and studied energy management system
application events and alarms for study, debugging issues in real-time, and audits. • Audits: Participated in audits when requested. Implemented action items
• Unix: Worked with UNIX servers for EMS functions, custom cronjobs and
applications, and log debugging. Debugged scripts and cronjobs and had to manually run them for problems in real-time. Took a company course on UNIX and a community college introductory course on UNIX/Linux to improve my skills. Able to navigate through shells and perform basic functions and to improve upon them if needed by references documentation. I plan on taking an advanced course and scripting course in the future. • Linux: Able to successfully navigate and rudimentary knowledge of the
OS to work on applications. Took introductory course at community college on Unix/Linux to better prepare myself for work applications. • CIM Toolkit: I have had experience with the CIM Toolkit application by
ABB. The software has ESRI Arcmap technology and I am familiar in the spatial and attribute aspects of computer data modeling. My experience has been in understanding the data objects relationships, tables, spatial relationships, and hierarchy as they relate to the transmission and substation system. I have used this program to model the system to be used in energy management systems and real-time operations. • Data Maintenance: My experience in data maintenance has been very
broad ranging from updating attribute data of field equipment modeled in the energy management systems to updating the one-line diagrams of SCADA controlled equipment. • Databases: I am very familiar with databases and connections. I have
developed many applications and reports that link to a diverse collection of databases ranging from oracle, simba, sybase, mysql, etc. I have used different database programs to view data, perform SQL, download, and linkages. My applications have been used to compare data stored on different data sources and servers and report on the analysis. My database applications were very useful for verifying the correctness and functionality of data being used by the energy management systems from a source and a run-time database analysis. • Drills: I have been a participant of quarterly drills to test the backups and
functionality of the energy management systems. • Energy Services Accounting: I have had some experience with this area
of energy management systems and had to debug real-time operations issues and questions resulting from questionable data for MWH. • Hardware: I have a basic understanding of the hardware features involved
on SCADA, firewalls, data acquisition, modems, field interface devices, RTUs, servers, etc involved on the data feed into the energy management systems. • Work Management: My work management processes and updates have
usually tracked or logged. I have done this in a tool that adheres to work control process where approvals and assignments are made and have such experience with work management tools. I have done an excellent job in documentation my work, analysis, interaction with customers, results, and diagrams. I think work management tools are good for auditing work and providing accomplishments. • PED Picture Editor: This is another ABB application used to create one-
line diagrams with transmission, substation, and distribution equipment. I have had experience in updating energy management systems displays with this program and creating custom displays. These one-line displays were used for switching and monitoring the system. • PSSE: I have used PSSE textual case files to build relational diagrams of
external area substations and modeling and to verify RTO mapping to control area mapping. I have been able to manually decode these cases in order to verify the power systems configuration for the purposes of network modeling for the energy management systems. • SCADA: My experience has been with the data maintenance and addition
of telemetry to the network model for the use in energy management systems. • Security Analysis: My experience with security analysis is with both real-
time applications in the energy management system and with simulated projects done for completions of my master’s courses. I have also ready technical documentation on this subject, which consists of multiple topics such as state estimator, contingency analysis, voltage stability, etc and am continually learning new things. • Procedures: I have had work experience in creating new and modifying
existing procedures that involve technical writing skills. • Weather Data: My experience with weather data for the energy
management systems has been to verify the daily weather data feeds to the servers if there has been a reported problem and to contact the vendor for immediate corrections. I have had to debug scripts that use weather data feeds. • External Modeling: Analyzed PSSE cases, neighboring utilities diagrams,
reliability organization maps, and created VISIO diagrams of neighboring substations, transmission lines, voltages, and relationships with my current utility to better understand and model neighboring areas that may have an impact on reliability. • Impedances: Entered transmission line, transformer, and reactor
impedances into the network model to be used by the energy management system for power systems security analysis and used a Equipment Ratings Tool to track the impedance work. See Equipment Ratings Comparison Tool. Engineer – Business Performance Measurements o Vegetation Management – Created over 150 thematic maps that
uniquely display distribution circuits trimmed in individual municipalities or wards of a major metropolitan city. Maps were presented in either PowerPoint presentations or on poster boards to internal management, external municipal representatives, or the public. o Municipal Circuit Maps – Created over 150 thematic maps that
uniquely display distribution circuits serving customers in individual municipalities or wards of a major metropolitan city. Maps were presented in either PowerPoint presentations or on poster boards to internal management, external municipal representatives, or the public. o Station and Aerial Maps – Created special request maps that present
locations of interest such as utility substation locations and future installation of a substation with aerial background. o Regional and Local Maps - Created poster-size maps of a utility
service territory displaying streets, townships, utility boundaries, quarter sections, and points of interest. o Performance Status - The performance status map was created to
monitor municipalities with reliability, new business, streetlights, and public improvement concerns. The background map from the department of transportation was clipped and edited for the utility’s service territory. Adobe Photoshop and Paint Shop Pro graphic suite applications were used to highlight the utility’s service territory and shade out the bordering regions. The service regions layer overlapped on the top of the map as a transparency. I used a creative GIS technique to make the town legend by querying each town boundary in each reference square. o City and Suburb Fiber Optic Maps – Created maps of corporate fiber
optic assets in its service territory, city, downtown area, and surrounding suburbs. The fiber optic lines were color coded by type and the map displayed streets, buildings, stations, and generating plants. o Miscellaneous Maps – Other maps created but not limited to include
o Planning Maps – Capacity Planning proposed work o Substation Utilization by MVA – Themed by the MVA utilization o Planning Region Area Maps – Territory maps of planning o Cycle Plan Maps - Top Circuits and regions color coded by o Townships with Pole Inspections – Townships color coded by year o Distribution Lightning Lockouts by Municipality – Municipalities color coded by number of lockouts due to lightning o Distribution Lightning Lockouts by Circuit – Circuits color coded by o Year End Municipal SAIFI - Utility service territory with municipalities that have xxxx customers served or more and a
SAIFI of xxxx or more
o Regional Transmission Expansion Maps - Proposed Transmission o Construction and Maintenance Regional Maps o Transmission and Substation Regional Maps o City transformers with x or more outages o Nuclear Radiation Samples - map of radiation samples using o Summer Lightning Within Utility Service Territory – Edited graphics of the lightning analysis to show utility Service Territory on the map and the chart of the number of lightning strokes. o Construction and Maintenance Zones Map – Created a map template with the new utility construction and maintenance regions. Different versions of this map have been customized by request and distributed. o Operating Area Map – Created a map template with the new utility operating area regions. Different versions of this map have been customized by request and distributed. o Township and Quarter Section Maps – created customized poster- size maps of regions with township, major streets, and quarter section boundaries. o Created over 3,000 ELCP (Emergency Load Conservation Plan), otherwise known as controlled service interruptions, maps. o Ward Presentations – Created individual city ward maps featuring circuits served, circuits with reliability concerns, tree trimming schedules, streets, boundaries, and other requested information. Used FME (feature manipulation engine) to verify and translate circuits, MapInfo to create thematic maps, and Adobe Photoshop to edit graphics. The presentations were distributed either in PowerPoint, PDF or hard copy. o Municipal Presentations – Custom designed municipal maps were created in MapInfo. Maps included tree-trimming schedules, circuits with reliability concerns, or informational display of circuits serving the area of interest. The presentations were distributed either in PowerPoint, PDF or hard copy. Some were printed out in poster format and mailed to individual offices. Some presentation maps were used in meetings with municipal officials and external affairs. o Ward Franchise Report Maps – Completed over 100 maps displaying tree trimming schedules and circuits with reliability concerns to complete the required city franchise report. o Circuit Maps – Maps and data requests have been completed that show specific circuits, their usage, boundaries, region, towns that they cross, wards that they cross, voltages, phases, and distances spanned. o Reliability Analysis
Determined municipalities with reliability concerns based on Created buffer zones or “areas affected” around circuits with reliability concerns and color themed by number of outages Determined outage intensities by municipality and ward o Geospatial Queries
Determined circuits, transformers, and operating devices within a municipal, city ward, or other boundary Determined circuit length, miles of overhead, miles of Created buffers around towns and circuits to present area Created a reference grid for municipalities by querying Used GIS to verify circuits within towns and assist with data Used thematic mapping to highlight intensities of areas with o Drafted and edited a business planning document outlining the objectives, strategies, and fundamentals for the department during the reorganization. o Prepared benchmarking summary sheets for management meetings o Drafted and prepared a gap analysis summary report for interfaces between the department and other departments in the company o Prepare the business plan charter guideline for the department in the o Management Score Card – Referenced documents such as the business plan, RACI tables, group interfaces, etc to design and prepare a business unit specific scorecard that grouped business units and classified their functions. o Prepared weekly reliability poster displays with performances year to date on company wide SAIFI and CAIDI for senior management. o Completed Utility System Health Display – an informational display with frequency, duration, circuits out of configuration, and system performance updated weekly. o Participated in political campaigns to support company. Visited with senator and representatives to persuade them to sign house bills in support of the issues. o Created web pages in ASP format outlining the organizational team leaders and structure of the new organization. o Wrote articles to highlight reliability innovations in the engineer's Engineer – Reliability and Power Quality o X% Repeat Circuit Analysis – Helped research causes, times, and corrective actions of the repeat X% circuits o Fusing Coordination – Completed training in fusing coordination, then was involved on a team project to verify and correct fusing coordination problems found on city maps. o Bus lockouts – Used PI-Historian to analyze bus lockouts and compare them to outage times for restoration reporting o Bus Voltage Study – Analyzed approximately 70 station voltage o Voltmeter Violation Online Report – Lead the design and update of the online voltmeter report that tracts high and low voltage violations. The report included improved table display of voltmeter violations, improved summary analysis display, and a graph summarizing the violations. The report also monitored customer voltage violations with performance indicators to monitor progress and improvements. o Bus Voltage Study - Created both a technical report (draft) and a business report. The objective of this bus voltage study was to review current voltage regulation setting practices, its relationship to voltage violations and what cost effective steps could be taken to reduce voltage violations. Analysis on multiple substations was done; historical data was analyzed with voltages and violations, estimated load drops, and increases in reliability. o URD and Mainline Cable Inspection Reports – Helped combine and create finalized summary sheets with local office records on cables that faulted, had work orders issued, designs completed, or were field completed. o Tree Trimming Inspection – Worked with partner to visually inspect lines that had tree-trimming concerns; took photos of problem areas and created computer-drafted maps with location to trouble sites o Participated in storm duty - Patrolled circuits, inspected and assessed o Preventive, Construction and Maintenance Item Inspections – Worked on a team project to visually inspect distribution lines for devices that did not meet standards, had severe deterioration, or was installed improperly. Items were documented and handed over to project engineers for prioritization. o Observed senior engineer install meters and detect customer outages due to customer transformer fuses blowing Engineer – Professional Engineering Intern • Line Loss Analysis – Analyzed line losses for a large operating region for improvements in reliability and cost-savings potentials with 3:1 transformer conversions from 4kv to 12kv. • Line Clearance Corrections – Independently investigated DOT (department of transportation) issued citations on line clearance violations. Measured the line sags across the highways and roads, measured the pole heights, and created drawings with maps for either a new pole placement or pole replacement. • Meter Investigations – Worked with partner to field investigate • Technical Investigations – Worked with another intern to record capacitor bank clock settings and tour a few technical investigations.

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