东南大学学报（自然科学版）2017，Vol.47Issue(3)：500-505,6.DOI:10.3969/j.issn.1001-0505.2017.03.015
微燃机-冷热电联供机组的Hammerstein模型及非线性广义预测控制
Hammerstein model and nonlinear generalized predictive control of MGT-CCHP
摘要
Abstract
To study on dynamic characteristics and control strategy,the nonlinear dynamic characteristic of a micro gas turbine-combined cooling,heating and power unit (MGT-CCHP) was identified with the Hammerstein model and expressed as a nonlinear static model and a linear dynamic model in series.After the order of the dynamic model was determined with the stepwise regression and the model parameters were identified with the particle swarm algorithm,an easily-reproduced block-oriented model is obtained.Then based on the Hammerstein predictive model,a nonlinear generalized predictive controller is designed for the cooling load following of MGT-CCHP.By taking advantage of the separate structure on the static and dynamic characteristics of a plant in a Hammerstein model,the nonlinear generalized predictive control could be transferred into the linear generalized predictive control for finding the root of a nonlinear static function,and thus making the control variable-solving more easily.The simulation results show that the nonlinear generalized predictive controller can improve control performance and is energy-saving than a PID controller with optimal parameters for the cooling load following.关键词
微燃机-冷热电联供机组/Hammerstein模型/非线性/广义预测控制Key words
micro gas turbine-combined cooling, heating and power unit (MGT-CCHP)/Hammerstein model/nonlinearity/generalized predictive control分类
能源科技引用本文复制引用
潘蕾,赵德材,张俊礼,沈炯,彭春华..微燃机-冷热电联供机组的Hammerstein模型及非线性广义预测控制[J].东南大学学报（自然科学版）,2017,47(3):500-505,6.基金项目
国家自然科学基金资助项目(51576040,51567007)、国家科技支撑计划资助项目(2015BAA03B02). （51576040,51567007）
