基于时序分析的数字物理混合仿真技术:（一）时序分析与离散动态模型

电力一次系统数字物理混合仿真是传统混合仿真技术的新发展,可以对功率设备进行仿真测试,是一种先进的仿真技术。这种新技术能充分发挥混合仿真的优点,不仅可以适应新能源革命下对各种新电力设备进行测试和研究的需求,还可以扩展混合仿真在电力系统研究中的传统应用,具有重要的研究价值和广泛的应用前景。从混合仿真的结构出发,研究了数字、物理两侧交互工作的特点和规律,提出了"帧—步长时序"的原理和框架。基于该时序,研究了混合仿真接口建模中的时间协调关系,并建立了适用于一般混合仿真系统的离散动态模型。

Hardware-in-the-loop Simulation Technology Based on Timing Analysis Part One Timing Analysis and Discrete Dynamic Model

Power hardware-in-the-loop simulation(PHILS) is an advanced simulation technology as a new development of traditional hardware-in-the-loop simulation(HILS).PHILS can be used to test power devices,which can also make full use of the advantages of HILS.PHILS can not only meet the test and research demand of a variety of new electrical devices during the new energy revolution,but also extend the traditional application range of HILS in a power system,giving PHILS important research value and broad application prospects.Proceeding from the basic concepts and the structure of PHILS and by addressing the interaction between numerical and physical subsystems,an analytic framework,named "frame-step" timing,is proposed.Based on this timing,the coordination of virtual and natural time is analyzed in modeling the interface.Then a discrete dynamic model applicable to a general PHILS system is developed.