Controls Engineer

As an Electrical Engineer Motor Controls and Power Conversion Specialist serve as a vital member of the *** Aerospace and Defense Technologies (ADTECH) engineering team an engineering center of excellence and an exciting part of our dynamic global enterprise. Within our *** Technologies (OTECH) group your primary responsibility will be supporting development and application of high-power high-efficiency motor controls drives active front end rectifiers and other power conversion systems. Additionally you may be responsible for performing diverse activities associated with the development and implementation of complex power and control systems for unique underwater robotic and electromechanical systems helping solve our customers toughest challenges typically for US Navy and other US Government Department of Defense customers.

Most of our projects are one-of-a-kind which means you will never be stagnant and will always work on something new and compelling. And by work we dont just mean analyze and design most of our engineers do not simply sit behind a desk but when the design is done choose to get their hands dirty assisting with building and testing their creations. At *** we are committed to making it work!.

• Apply specific expertise to development of low to high power motor controls drives active front end rectifiers other power conversion and supporting components.


• As a system or subsystem lead responsible for producing significant portions of individual project electrical and control system designs; may also be expected to lead supervise and mentor small teams of senior and junior electrical engineers in pursuit of associated project objectives.


• Given incomplete high-level requirements for a system or subsystem of moderate complexity generate proper designs and work to complete tasking with latitude to make decisions under minimal supervision individually and in a teamwork environment.


• Exercise excellent technical judgement creativity and initiative with attention to detail consistently throughout your work product with attention to the system perspective.


• Prepare and participate in regular design reviews.


• Work closely in concert with mechanical software and systems engineers as well as other cooperative disciplines to solve problems and constructively architect a working system.


• Supervise/mentor junior engineers or technicians when necessary.


• Responsible and accountable for your results working with considerable autonomy but also knowing when to ask for assistance.


• Desire to stretch and expand your talents expertise competency and responsibilities.

ESSENTIAL:

• Bachelor of Science or advanced degree from an accredited university in Electrical/Electronic Engineering (or related field/curriculum having an Electrical concentration such as Computer Engineering or Robotics Engineering). Significant commensurate experience may be considered.


• Minimum 10 plus years practical technical experience with focus and demonstrated expertise in custom-made (high-power) motor controls and other power conversion subsystems development analysis simulation design control programming layout construction troubleshooting and testing.


• Ability to obtain and maintain a United States Government Department of Defense Security Clearance (active clearances preferred but not prerequisite).


• Must be a US citizen.

PREFERRED:

• Expert understanding and application of three-phase brushless motors and controls models electrical magnetic and mechanical including dynamic flux estimation and transformations between stationary and rotating reference frames.


• High-frequency space-vector pulse-width modulation (SVPWM) and other advanced techniques for efficient sinusoidal commutation minimizing torque-ripple and excess harmonics.


• Precise sensorless and sensored commutation/rotor angle sensing techniques.


• Detailed analysis modeling and simulation of motors and motor controls in time domain frequency domain continuous and discrete.


• Precise torque speed and position feedback control under varying loads.


• Efficient implementation of motor controllers with embedded software/firmware in microcontrollers/DSP using low-level assembly language and C language including implementation of digital filters and phase-locked-loops (PLL).


• Inverter topologies state-of-the-art power device selection.


• Power electronics design and component selection including high-power IGBTs and MOSFETs SiC and associated drive level-shifting filtering isolation switching sensing common-mode effects etc.


• Application of similar principles to high-power active front end rectifiers for efficient near-unity-power-factor low-harmonics AC-DC power converters and complex interactions between front end and inverter(s).


• Compact optimal layout of motor control and drive circuitry (low- and high-power sections) on printed circuit boards for minimal noise EMI/EMC as well as heatsinking.


• Good electrical drawing/drafting skills accurately create and read detailed schematics wiring diagrams cable drawings system cabling and block diagrams etc.


• Proficiency in proper use and application of various standard motor and electronic test equipment e.g. dynamometers VOM/multimeters oscilloscopes power analyzers spectrum analyzers hipot insulation testers communications analyzers etc.


• Proficiency with advanced Computer Aided Design (CAD) Simulation and Analysis software packages such as Altium Designer SPICE AutoCAD SolidWorks MathCAD MATLAB etc.


• Proficiency with common office productivity software such as Microsoft Word Excel and PowerPoint etc.


• Good written and oral communications skills including ability to effectively document convey and present engineering concepts and products to team members and customers.

ADDITIONAL:

• Experience in the marine (surface or preferably underwater) industry and associated technologies including ROVs AUVs and related robotic and electromechanical systems.


• Experience with ground-fault (and other fault) monitoring and interruption for safety especially in the marine shipboard and underwater environment.


• Applications with electronics (entire motor controller) immersed in oil potentially under high-pressure.


• Motor design and construction (housing bearings seals stator rotor windings).


• Experience with low-medium voltage single- and 3-phase power systems (120 *** VAC).


• Experience applying machine safety systems and standards.


• Good practical technician skills (assembly wiring soldering cabling etc.).


• Ability and flexibility to travel on occasion typically pre-planned for up to one to two weeks at a time; may be within the US outside the US or offshore onboard a boat.