Research On Hardware-in-the-loop Real-time Simulation Platform Of Wide-body Stater/Generator System

The integration of starter and generator is an important direction for the development of future aviation power-supply system,while most of the existing researches on aviation power-supply system are limited to the off-line simulations earlier in the development process,which will have low simulation speed when the model is complicated and be limited by the computer memory.For the later process,one of the main challenges is prototyping and testing of the system's control,starter generator and its control system can be quite expensive,both in time and money,when all components need to be thoroughly built in order to be tested.In order to reduce time-to-market despite the increasing complexity of aviation power-supply system,the widely-used Model-Based Design method,used for decade to design conventional aviation power-supply system,must consequently be optimized for starter generator and its control system.To deal with this situation,reling on the science and technology projects of Tsinghua University and Commercial Aircraft of China Ltd.,this research mainly focuses on the design of hardware-in-the-loop real-time simulation platform and the real-time simulation of starter/generator system.In terms of the construction of the test platform,along with the systematically describe of the overall architecture,the hardware structure and software composition of the platform are expounded and,based on the hardware-in-the-loop real-time simulation test platform of wide-body airliner(HRSTPWA),the process starter/generator(SG)system design is proposed.A real-time simulation of a three-stage brushless synchronous motor(TBSM)and its control system is executed on dSPACE MicroLabBox as an example and the results are compared against the off-line simulation of the same load torque and the identical TBSM model.And through the comprehensive experiment and debugging software ControlDesk completed the real-time debugging experimental interface design,which then successfully achieves the real-time waveform observation and parameters online adjustment.Fanily,based on the comparison between the experimental results and the off-line simulation results,the feasibility of the three-stage starter/generator system starting and generating control algorithms are verified as well as the efficiency and practicability of the experimental platform.The result shows that HPSTPWA can effectively shorten the development cycle,improve research and development efficiency,and also avoid unnecessary human and material resources in the development process.