基于无模型自适应与滑模控制相结合的水电机组优化控制  

Optimal Control of Hydropower Units Based on Combination of Model-free Adaptive and Sliding Mode Control

作　　者：谢云敏 王昕 熊祺 陈上 肖志怀[4] XIE Yun-min;WANG Xin;XIONG Qi;CHEN Shang;XIAO Zhi-huai(School of Mechanical and Electrical Engineering,Nanchang Institute of Technology,Nanchang 330099,China;Fujian Shuikou Power Generation Group Co.,Ltd.,Fuzhou 350004,China;ZTE Corporation,Shenzhen 518000,Guangdong Province, China;School of Power and Mechanical Engineering,Wuhan University,Wuhan 430072,China)

机构地区：[1]南昌工程学院机械与电气工程学院,南昌330099 [2]福建水口发电集团有限公司,福州350004 [3]中兴通讯股份有限公司,广东深圳518000 [4]武汉大学动力与机械学院,武汉430072

出　　处：《中国农村水利水电》2021年第1期169-174,共6页China Rural Water and Hydropower

基　　金：国家自然科学基金资助项目(51979204)。

摘　　要：水电站作为优质的调峰调频电源,对保证电网安全稳定运行发挥着重要的作用,这对水电机组调节性能提出了更高要求。为提高水轮机调节系统的控制品质,在非线性水轮机模型的基础上,根据动态线性化理论以及Lipschitz条件,提出无模型自适应控制(MFAC)与离散滑模趋近律控制相结合的水电机组调节系统优化控制策略,并利用天牛须算法(BAS)结合误差积分准则函数,实现控制参数优化。仿真结果表明在不同工况下,相比于最优PID控制器,MFAC滑模控制器系统具有超调量小,上升时间短的优点,而BAS算法参数寻优效果优秀,计算耗费时间短,具有较好的应用前景。As a high-quality power source undertaking peak load and frequency regulation,hydropower stations play an important role in ensuring the safe and stable operation of the power grid,which expects a lot from the regulation performance of hydropower units.In order to improve the control quality of the hydro-turbine regulating system,based on the nonlinear model of hydro-turbine,a model-free adaptive control(MFAC)combined with discrete sliding mode approaching law control for hydropower unit regulation is proposed according to the dynamic linearization theory and Lipschitz condition.The parameter optimization of the controller of the hydropower unit is realized by using the beetle antennae search(BAS)combined with the error integral criterion function.The simulation results show that the MFAC sliding mode controller has advantages like small overshoot and short rise time compared with the optimal PID controller under different operating conditions.Meanwhile,the BAS algorithm has excellent parameter optimization effect,short calculation time and a good application prospect.

关 键 词：水力机组 无模型控制 滑模控制 天牛须算法 优化控制 

分 类 号：TV34.21[水利工程—水工结构工程] TK73[交通运输工程—轮机工程]