[Neutron] ORNL: Power Electronics Engineer

[Levesque, Cerissa J.]

Job Posting Title
Power Electronics Engineer-NB50398639


Posted Date
11/05/2013

End Posting Date
12/06/2013

Purpose
The Neutron Sciences Directorate (NScD) at Oak Ridge National Laboratory (ORNL) operates the High Flux Isotope Reactor
(HFIR), the United States' highest flux reactor based neutron source, and the Spallation Neutron Source (SNS), the world's
most intense pulsed accelerator based neutron source. Together these facilities operate 24 instruments for neutron scattering
research, each year carrying out in excess of 1,000 experiments in the physical, chemical, materials, biological and medical
sciences for more than 3,000 visiting scientists. HFIR also provides unique facilities for isotope production and neutron
irradiation. To learn more about Neutron Sciences at ORNL go to: http://neutrons.ornl.gov.
The Power Electronics Engineer will support operation, maintenance, repairs, and upgrades of the DC and pulsed power
supplies and modulators throughout the SNS accelerator complex. This equipment operates at power levels from 500 W to
2.5 MW with voltages up to 135 kV and currents up to 6 kA.

Major Duties/Responsibilities
- Evaluate and improve the design of power electronics to support the Research Accelerator Division's mission to provide
high availability (>90%) neutrons for Neutron Science investigations
- Provide integrated accelerator operations support whereby power electronics performance is evaluated within the context
of the entire accelerator complex
- Perform troubleshooting and repair of power electronics as necessary to support 24/7 operations. Occasional evening and
weekend call-in work will be required in case of equipment failures
- Perform failure analyses and study MTTR / MTBF data on power electronics to propose reliability upgrades
- Design and analyze power electronics circuits and subsystems
- Specify and procure power electronics components and subsystems
- Perform maintenance planning and maintenance coordination for assigned power electronics systems
- Develop upgrades and replacements to address obsolescence issues in power electronics systems
- Develop documentation and procedures for power electronics equipment and ancillary systems
- Ensure compliance with environmental, safety, health and quality program requirements
- Maintain a strong commitment to the implementation and perpetuation of values, ethics, and diversity

Qualifications Required
- MS in Electrical Engineering with >7 years relevant experience or BS in Electrical Engineering with >8 years relevant
experience
- Demonstrated success in working in a team environment in both leader and follower roles
- Expertise in the specification, operation and maintenance of power electronics components and subsystems
- Expertise in the design and analysis of power electronics components and subsystems
- Expertise in the application of electrical safety principles in environments containing significant electrical hazards (high
voltage, high current, capacitive energy storage, radio-frequency fields)
- Excellent written and verbal communications skills
QUALIFICATIONS DESIRED:
- Education concentration in electromagnetics and power electronics theory and techniques
- Knowledge of AC power distribution concepts for voltages up to 15 kV
- Demonstrated success as a technical project manager
- Expertise in the programming and utilization of programmable logic controllers and/or FPGA modules
- Expertise in computer programming using languages such as C++ and Labview for data acquisition and/or test automation

Work Directions and Interfaces
- Reports to the High Voltage, Pulsed Power, and Magnet Systems Manager.
- Takes direction from the Lead Engineer for Power Supplies, Kickers, and Choppers.
- Interfaces with Electrical and RF Systems Group members, NScD staff, professional peers from non-ORNL institutions,
ORNL business services, vendors and visitors.
- Represents group activities and interests within ORNL and at professional conferences, workshops, and collaboration
meetings.
AUTHORITY/APPROVAL LEVELS:
Provides work direction to engineers, technicians, research mechanics, subcontractors, and vendors within guidelines
established by the Electrical and RF Systems Group Leader. Initiates procurement of materials and services.

Measures of Effectiveness
- Success in the fulfillment of all major duties and responsibilities
- Success as measured by the ORNL Employee Performance Management process
- Safe execution of all responsibilities in accordance with ORNL ES&H requirements

Employment Status
Full-Time
This position will remain open for a minimum of 5 days after which it will close when a qualified candidate is identified and/or
hired.

We accept Word(.doc, .docx), Excel(.xls, .xlsx), PowerPoint(.ppt, .pptx), Adobe(.pdf), Rich Text Format(.rtf), HTML(.htm,
.hmtl) and text files(.txt) up to 2MB in size. Resumes from third party vendors will not be accepted; these resumes will be
deleted and the candidates submitted will not be considered for employment.
If you have trouble applying for a position, please email ORNLRecruiting at ornl.gov.
ORNL is an E-Verify Employer.
UT--Battelle is recognized by our employees and the community as an inclusive environment where diversity is valued and
individuals and teams are inspired to contribute fully to the organization's success. ORNL is an equal opportunity employer.
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