Project brief
Comprehensive MATLAB/Simulink model of a 270V HVDC electrical power system for a next-generation More Electric Aircraft (MEA). The study models generators, APU, Ram Air Turbine, battery backup, and 24 load buses with solid-state power controllers (SSPC), analyzing transient response, fault scenarios, protection coordination, and power quality compliance with MIL-STD-704F.
The record describes aircraft electrical-system modeling and scenario analysis. The added narrative does not imply independent compliance verification.
The engineering challenge
Understand bus transients and load continuity under generator changes and electrical faults.
Engineering approach
- Build source, bus, load, and protection models in a common simulation.
- Exercise the stated fault and source-loss scenarios.
- Compare protection coordination, load shedding, and power-quality outputs.
Features & capabilities
- Complete 270V HVDC system: 2×120kVA IDGs, APU generator, RAT, battery
- 24 independent load buses with SSPC trip coordination
- Fault analysis: three-phase short, single-phase earth, open-circuit generation
- Protection coordination study: SSPC current–time characteristic matching
- Voltage/frequency transient analysis per MIL-STD-704F specifications
- Power quality: harmonic analysis, THD <5% at all buses
- Load shedding algorithm simulation for generator redundancy scenarios
- Monte Carlo reliability analysis for MTBF estimation of EPS
Software & engineering tools
MATLAB R2024a, Simscape Electrical Specialized Power Systems, Simulink, SimEvents for discrete-event modeling