摘要
为了准确描述独立电源系统保护离散事件与连续控制相互作用的混杂行为,提出一种对象混杂Petri网(OHPN)建模方法,构建了基于OHPN航空独立电源保护控制行为的混杂模型。该模型将混杂Petri网的混杂特性描述内置于对象之中,解决了传统混杂Petri网不能同时描述静态结构和动态过程的问题,增强了模型描述能力,使模型具有良好的封装性、可重用性和可维护性。最后,对某型航空交流电源系统的保护控制过程进行了仿真和验证。结果表明,所定义的模型能够有效描述和分析电源系统保护控制的混杂行为,为系统稳定性和故障预测的研究奠定基础。
To describe IPSS hybrid interactive behavior of discrete-protection event and continuous-con- trol dynamic accurately, a model method of object-orient hybrid Petri net （OHPN） is proposed, combined embedding objects in hybrid Petri net. The method solves the difficult depiction about static structure and dynamic process by the classic hybrid Petri net. The hybrid model protection-control for IPSS based OHPN is developed and has better encapsulation, reuse and maintainability. Finally, taking an aircraft electric AC power system as an example, the protection-control process is simulated and validated. Results show that the model can describe and analyze the hybrid interactive behavior of protection action, and establishs its basis for studying system stability and fault prognosis.
出处
《南京航空航天大学学报》
EI
CAS
CSCD
北大核心
2011年第B07期169-173,共5页
Journal of Nanjing University of Aeronautics & Astronautics
基金
航空科学基金(2008ZD51060)资助项目
关键词
独立电源
保护与控制
混杂PETRI网
面向对象
independent power-supply
protection and control
hybrid Petri net
objeet-oriention
