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针对极值搜索系统在稳定状态存在可行域约束情况下的预设性能控制问题,首先利用罚函数构造新型目标函数并设计极值参考轨迹;然后,通过性能函数和误差转换函数构建系统等效模型,利用反演控制方法进行预设性能控制器设计;最后,设计不确定参数自适应估计律.系统在实现极值搜索的同时能够满足预先设定的性能指标.数值仿真验证了所提出方法的有效性.
Aiming at the problem of the default performance control of the extremum search system under the condition of the feasible domain constraint in the steady state, a new objective function is constructed by using the penalty function and the extreme reference trajectory is designed. Then, the system equivalent model is constructed by the performance function and the error transfer function , The controller of preset performance is established by using the inversion control method.Finally, the adaptive estimation law of uncertain parameters is designed.The system can satisfy the pre-set performance index while realizing the extreme value search.The numerical simulation verifies the proposed method Effectiveness.