中文摘要：

针对串联式混合动力汽车辅助功率单元对车辆目标转速和目标功率跟踪的控制问题，提出一种具有干扰抑制的自适应控制策略。根据系统固有的非线性和实际运行过程中系统参数变化、负载干扰带来的不确定性的特点，建立了整个系统的动态描述，结合自适应反步设计方法和L2增益干扰抑制技术，综合设计系统的非线性自适应控制器。理论分析和仿真研究结果均表明：所设计的控制器能保证系统动态过程中转速和功率跟踪的稳定性及较好的动态性能，同时有效抑制了参数变化和负载扰动对目标跟踪的影响。

英文摘要：

The control problem of the target speed and power tracking was investigated for the auxiliary power unit of series hybrid electrical vehicles and an adaptive control strategy with disturbance attenuation was proposed. In the light of the inherent nonlinearity and the uncertainty caused by the parameter perturbation as well as the load disturbance, the dynamics mathematical description was established for the considered system. A nonlinear adaptive controller was designed based on adaptive backstepping design method and L2-gain disturbance attenuation technique. Both theoretical analysis and simulation results show that the designed controller can not only guarantee the stability and good dynamical performance in the dynamic process of the system, but also effectively attenuate the errors resuhing from the parameter variations and load disturbance.