Research on Optimized Technology for Aeronautic DC Starter Generator Control Unit with High Performance

In this paper, a modular and digital architecture for integrated starting and power generation controller system has been proposed in terms of the performance improvement and lightweight design need for traditional analog generator control unit. The general CPM module based on DSP and FGPA has been planned; then, the hardware design for PSM, E3M and RVM modules has been completed; finally, a layered decoupling architecture has been designed for software portability. Tests have proved that the GCU product herein has greatly improved the testability and the maintainability of the product, lowered the impact from environmental changes on the quality of generator voltage control, and reduced the volume and weight of the product. It has provided an effective solution to improve the function and performance of aircraft power system.