为提高微燃机–溴化锂双效吸收式制冷机三联供机组(micro gas turbine-LiBr double effect absorption refrigerating machine combined cooling,heating and power system,MGT-LiBr CCHP)在多扰动条件下的大范围冷热电负荷跟踪能力,提...为提高微燃机–溴化锂双效吸收式制冷机三联供机组(micro gas turbine-LiBr double effect absorption refrigerating machine combined cooling,heating and power system,MGT-LiBr CCHP)在多扰动条件下的大范围冷热电负荷跟踪能力,提出一种基于Hammerstein模型改进设计的L_1鲁棒自适应控制方法。首先采用Hammerstein块结构建立受控系统的非线性动态仿真模型,然后利用Hammerstein模型的特殊结构求解多变量非仿射L_1鲁棒自适应控制器的假设条件,进而得到可靠的控制器参数。该文利用该方法设计了MGT-LiBr CCHP的冷热电负荷跟踪控制器,仿真实验验证了其具有较强的大范围多负荷跟踪、鲁棒稳定和扰动抑制性能,可作为维护终端一体化集成供能系统可靠运行的先进备选控制方案。展开更多
Many researchers have studied single and double effect absorption cycles based on first and second lows of thermodynamics But so far the relation of different parameters inside these cycles to the second law of thermo...Many researchers have studied single and double effect absorption cycles based on first and second lows of thermodynamics But so far the relation of different parameters inside these cycles to the second law of thermodynamics in boiler and cooling tower has not been investigated. In this paper, a system comprised of a series flow double effect water-Lithium bromide absorption chiller, a boiler and a cooling tower is studied based on the first and second laws of thermodynamics, and also exergy analysis is investigated. For this purpose, mass and energy conservation laws governing the system are written, and coefficient of performance of the system, exergy destruction （loss） of each component and exergy efficiency have been calculated.展开更多
文摘为提高微燃机–溴化锂双效吸收式制冷机三联供机组(micro gas turbine-LiBr double effect absorption refrigerating machine combined cooling,heating and power system,MGT-LiBr CCHP)在多扰动条件下的大范围冷热电负荷跟踪能力,提出一种基于Hammerstein模型改进设计的L_1鲁棒自适应控制方法。首先采用Hammerstein块结构建立受控系统的非线性动态仿真模型,然后利用Hammerstein模型的特殊结构求解多变量非仿射L_1鲁棒自适应控制器的假设条件,进而得到可靠的控制器参数。该文利用该方法设计了MGT-LiBr CCHP的冷热电负荷跟踪控制器,仿真实验验证了其具有较强的大范围多负荷跟踪、鲁棒稳定和扰动抑制性能,可作为维护终端一体化集成供能系统可靠运行的先进备选控制方案。
文摘Many researchers have studied single and double effect absorption cycles based on first and second lows of thermodynamics But so far the relation of different parameters inside these cycles to the second law of thermodynamics in boiler and cooling tower has not been investigated. In this paper, a system comprised of a series flow double effect water-Lithium bromide absorption chiller, a boiler and a cooling tower is studied based on the first and second laws of thermodynamics, and also exergy analysis is investigated. For this purpose, mass and energy conservation laws governing the system are written, and coefficient of performance of the system, exergy destruction （loss） of each component and exergy efficiency have been calculated.
