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针对一般的参数反馈型非线性系统提出了一种扩展自适应逆推方法。该方法不仅保留系统的非线性特性和对未知参数的实时在线估计,而且突破了经典的确定性等价性原理。将该方法应用到含有未知参数带有静态无功补偿器 (SVC)的单机无穷大系统。将这种新自适应机制引入电力系统,得到了带有SVC单机无穷大系统的自适应控制律。仿真结果表明,该方法在提高系统稳定性和参数估计方面优于传统的逆推方法,为工程应用提供了一种有效的选择。另外, 该文中的算法可以应用到其他控制系统。
A generalized adaptive feedback method for parametric feedback nonlinear systems is proposed. This method not only preserves the nonlinear characteristics of the system and real-time on-line estimation of unknown parameters, but also breaks through the classical deterministic equivalence principle. The method is applied to a single machine infinite system with unknown parameters and static var compensator (SVC). Introducing this new adaptive mechanism into the power system, an adaptive control law with SVC single machine infinite system is obtained. The simulation results show that this method is superior to the traditional inverse method in improving system stability and parameter estimation, which provides an effective choice for engineering application. In addition, the algorithm in this paper can be applied to other control systems.