化工学报2016，Vol.67Issue(10)：4309-4316,8.DOI:10.11949/j.issn.0438-1157.20160605
燃气机热泵燃气机转速与蒸发器过热度联合控制试验
Simultaneous control of engine speed and evaporator superheat for gas engine-driven heat pump system
摘要
Abstract
The complex gas engine-driven heat pump (GEHP) is composed of a gas engine, a heat pump as well as a data acquisition and control sub-system. Effective control of the gas engine speed and evaporator superheat is necessary for safe and highly efficient operation of a GEHP. Based on the characteristics of the gas engine and the heat pump, a simultaneous control strategy was developed with an expert PI controller for engine speed and gain-regulating controller for evaporator superheat. Simultaneous control studies were performed on a GEHP system over a wide range of engine speed and evaporator superheat. When the set point of evaporator superheat was changed, superheat overshoot was less than 1℃ and the engine speed control showed strong anti-interference. When the set point of engine speed was changed, the engine speed control showed a good performance with no overshoot and the superheat fluctuated within a range of less than 0.5℃. The experimental results also show that the simultaneous controller run well in terms of settling time and overshoot when the set points of engine speed and superheat were changed continuously. The research findings will provide technical support for design of automated GEHP control system.关键词
天然气/热力学/压缩机/燃气机热泵/燃气机转速控制/过热度控制/联合控制Key words
natural gas/thermodynamics/compressor/gas engine-driven heat pump/gas engine speed control/superheat control/simultaneous control分类
能源科技引用本文复制引用
王明涛,刘焕卫,张百浩..燃气机热泵燃气机转速与蒸发器过热度联合控制试验[J].化工学报,2016,67(10):4309-4316,8.基金项目
山东省自然科学基金项目（ZR2014EEP026）；鲁东大学科研基金项目（27860301）。@@@@Foundation item：supported by the Natural Science Foundation of Shandong Province (ZR2014EEP026) and the Scientific Research Foundation of Ludong University (27860301) （ZR2014EEP026）
