本文提出了带有不对称饱和非线性环节的线性离散系统的自适应控制算法，该算法简单易行。
This paper presents an adaptive control algorithm for discrete time linear systems with asymmetric saturation nonlinearity. This algorithm can easily be realized.
采用双环结构，用三个非线性PI环节实现了对整流器直流电压与功率因数的高性能控制。
The DC bus voltage and the power factor of the PWM rectifier are regulated by three nonlinear PI controllers with high performance.
仿真结果表明：这种控制方法不仅对被控对象含有的非线性环节，以及被控对象参数在较大范围内的变化具有较好的适应能力。
According to its simulation results, this method has good adaptability when the controlled member contains non-linear elements or the controller member varies in a large range.
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