基于DSP与FPGA的双余度飞机交流一次配电控制器设计

为提高飞机配电系统的可靠性,设计了一种双余度飞机交流一次配电控制器。对以DSP为核心的处理器模块进行冗余设计,每个处理器设置相应的故障检测机制,由FPGA构成的仲裁切换模块根据故障检测结果进行余度切换与管理;采用外触发中断方式控制双机运行周期,实现双机同步。从而实现了双处理器容错控制,有效地提高了控制器的可靠性。

Design of a Dual-Redundancy AC Power Distribution Control Unit for Aircraft Based on DSP and FPGA

In order to improve the reliability of aircraft electrical power distribution system,a kind of dual-redundancy AC power distribution control unit is designed.The design idea is discussed about dual-redundancy processor module based on DSP,the fault detection mechanism for each processor is set.The switching module based on FPGA achieves redundancy switch and management function according to the result of fault detection.The external interrupt is used for controlling the operation cycle of each processor to realize the synchronization.The dual processor fault-tolerance control is realized,and the reliability of control unit is effectively improved.