MoHydroLib: An HMU Library for Gas Turbine Control System with Modelica

Symmetry

Meiyin Zhu¹  Yifu Long²  Zhen Jiang²  Huairong Chen²  Jiashuai Liu²  Shubo Yang²  Xi Wang²  Keqiang Miao²  Wenshuai Zhao²  Yi Zhang³ 

[1] Beihang Hangzhou Innovation Institute Yuhang, Hangzhou 310023, China;School of Energy and Power Engineering, Beihang University, Beijing 100191, China;Systems Engineering Research Institute, Beijing 100094, China;

关键词: Modelica;    hydraulic mechanical unit;    modeling and simulation;    HMU modeling library;   

DOI  :  10.3390/sym14050851

来源: DOAJ

【 摘 要 】

Modelica is an open-source, object-oriented equation-based modeling language. It is suitable for describing sophisticated dynamic systems (symmetry/asymmetry) as it uses mathematical acausal equations to express physical characteristics. The hydraulic mechanical units (HMU) of gas turbine engine control systems couple the contents of mechanical, hydraulic, symmetry, and other multidisciplinary fields. This paper focuses on the Modelica description method of those HMU models. The content of this work is threefold: firstly, the division form of basic elements in HMU is defined, and the method for describing these element models with Modelica is proposed; secondly, the organization of the element models is defined by using the inheritance characteristics of Modelica, and a lightweight (small code scale) component model is designed; and finally, the causal/acausal connections are designed according to bond graph theory, and the elements and components are integrated into a prototype modeling library. In this paper, the modeling library is verified by comparing simulation results of five typical HMU subsystem models with commercial modeling and simulation software.

【 授权许可】

Unknown