Simulation Study on Scroll Expander Digital Electro-Hydraulic Governing System

摘要：

Organic Rankine Cycles are particularly suitable for recovering energy from low-grade heat sources. Scroll expander has all the advantages of a scroll machine and is suitable to be used in ORC system. As the key element of the ORC, its safe operation has a direct relationship with all the system. Based on deep research on scroll expander’s working process, first the paper establishes dynamic mathematical model of scroll expander and designs scroll expander governing system depending on system requirements. The digital electro-hydraulic governing system is a nonlinear system, the control strategy choose only PID control can not achieve satisfactory control performance. Then the paper uses NCD module to optimize PID parameters. The simulation results indicate that this control method not only can improve the dynamic and static performances of the system, but also has better robustness.

关键词： Scroll Expander Digital Electro-hydraulic Governing System NCD Module PID Control Optimize

作者: Guolian HOU Rui SUN Shanshan BI Guoqiang HU Jianhua ZHANG

作者单位: North China Electric Power University, School of Control and Computer Engineering, Beijing 102206, China

会议类型: 国际会议

会议名称: The 24th Chinese Control and Decision Conference (第24届中国控制与决策学术年会 2012 CCDC)

会议地点: 太原

会议语种:英文

页码: 1002-1006

在线出版日期: 2012-05-23（万方平台首次上网日期，不代表论文的发表时间）