基于量化状态的混合系统仿真方法

doi:10.16182/j.issn1004731x.joss.20-0309

系统仿真学报 ›› 2021, Vol. 33 ›› Issue (8): 1775-1783.doi: 10.16182/j.issn1004731x.joss.20-0309

基于量化状态的混合系统仿真方法

李志华, 江德, 沈汉武, 樊志华

杭州电子科技大学机械工程学院,杭州 310018

收稿日期:2020-06-05 修回日期:2020-08-12 发布日期:2021-08-19
作者简介:李志华(1966-),男,博士,教授,研究方向为多领域建模与仿真优化、CAD/CAE。E-mail: D98LZH@263.net
基金资助:
国家重点研发计划(2017YFB1301300); 浙江省自然科学基金(LY18E050008,LY19E050013)

Hybrid System Simulation Method Based on Quantized State

Li Zhihua, Jiang De, Shen Hanwu, Fan Zhihua

School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China

Received:2020-06-05 Revised:2020-08-12 Published:2021-08-19

摘要/Abstract

摘要： 混合系统仿真和不连续性处理一直是基于时间离散的积分方法所面临的难题,而量化状态系统(Quantized State System,QSS)方法是一种新的基于状态变量离散的数值积分方法。针对混合系统仿真问题,提出一种QSS+DEVS(Discrete Event System Specification)求解方法。混合系统的离散部分以DEVS模型来表示,采用QSS实现混合系统的连续部分离散化,同样用DEVS模型表示,以两个DEVS模型的耦合作为整个混合系统的仿真模型。通过对两个实例系统的仿真求解,验证了QSS+DEVS方法的精确性、高效性和简便性,为混合系统仿真提供了一条新的途径。

关键词: 量化状态系统, 离散事件系统规范, 混合系统, 仿真, 事件检测

Abstract: Hybrid system simulation and discontinuity processing have always been the difficulties of the time-discretized integration methods, while Quantized State System (QSS) is a new numerical integration method based on state variable discretization. Aiming at the hybrid systems simulation, a method of QSS+DEVS is proposed. The discrete part of hybrid system is represented as DEVS model, and the continuous part of hybrid system is discretized by QSS, which can also be represented as DEVS model. The simulation model of the whole hybrid system is obtained by coupling the two DEVS models. The accuracy, efficiency and simplicity of the QSS+DEVS method are verified by the simulation resucts of two example systems, which provides a new approach for hybrid system simulation.

Key words: quantized state system, DEVS, hybrid system, simulation, event detection

中图分类号:

TP391

李志华, 江德, 沈汉武, 樊志华. 基于量化状态的混合系统仿真方法[J]. 系统仿真学报, 2021, 33(8): 1775-1783.

Li Zhihua, Jiang De, Shen Hanwu, Fan Zhihua. Hybrid System Simulation Method Based on Quantized State[J]. Journal of System Simulation, 2021, 33(8): 1775-1783.

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基于量化状态的混合系统仿真方法

Hybrid System Simulation Method Based on Quantized State

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