Astro Mechanica
Senior Electrical Engineer, Aircraft Power Systems
San Francisco. Posted 29 days ago
The role
You will model the electrical power system of an aircraft including HV and LV buses. You will build time-domain models to ensure bus stability and set requirements for sources and loads.
What you will do
- Build and maintain time-domain models of the HV and LV power system
- Analyze bus stability including source and load impedance interactions
- Simulate transients from large load steps, load dumps and faults
- Derive requirements for converters, generators and batteries from models
- Perform system trades on bus architecture, energy storage sizing, power management and load shedding
- Correlate models with component characterization, HIL, ground test and flight test data
- Work with other engineering disciplines to design and optimize high-power propulsion and generation systems
Required qualifications
- BS, MS, or PhD in electrical engineering with a focus on power systems or power electronics
- 5+ years of experience modeling and analyzing power systems with power electronic sources and loads
- Proficiency in time-domain simulation of power electronic systems (Simulink/Simscape Electrical, PLECS, or equivalent)
- Proficiency in scripting (Python, MATLAB)
- Strong understanding of DC bus stability
- Experience with both switching and averaged converter models
- Working understanding of batteries, electric machines, motor drives and converter control loops
- Experience correlating models with hardware test data
- Ability to develop component and system trade studies through high degrees of ambiguity
- Experience with high voltage (up to 1000 V) and/or high power (>100 kW) systems
Nice to have
- Experience with real-time simulation for HIL testing (e.g. Typhoon HIL, OPAL-RT, Speedgoat)
- Familiarity with aircraft power quality standards (e.g. MIL-STD-704, RTCA DO-160)
Benefits
- Comprehensive medical, dental, and vision insurance
- Flexible Spending Accounts (FSA)
- 401(k) program
- Transparent stock option plan
- Self-managed and flexible time-off policy
- PTO
- Paid holidays
- Sick time
About the company
Astro Mechanica is a vertically integrated aerospace company developing a scalable technology platform to power critical infrastructure, mission operations, and the future of flight. The team is a group of engineers with a flat structure and a shared obsession with building things that work well.