根据节点电压值识别非线性电路参数

本文利用非线性电路的非线性性质和替代原理,提出一种新的非线性电阻电路参数识别法。对于无源非线性电阻电路,当非线性电阻不存在故障或存在单故障时,各元件参数、特性可唯一地确定,当非线性电阻存在多故障时,在一定条件下,各元件参数、特性可唯一地确定。对于有源非线性电阻电路,当非线性电阻不存在故障时,各元件参数、特性同样可唯一地确定。

Parameter Identification of Nonlinear Circuit from Node Voltage Measurement

A new method is proposed to identify the parameters of a nonlinear resistive circuit by making use of the nonlinearity of circuits and by the substitution theorem. For the nonlinear passive resistive circuit, when no fault or a single fault occurs in the nonlinear resistances, the parameters of the circuit elements and the characteristic of the faulty nonlinear resistance can be uniquely determined; when multiple faults occur in nonlinear resistances, they can be uniquely determined under certain condition. Similarly, for the nonlinear active resistive circuit, when no fault occurs in nonlinear resistances, they can also be uniquely determined.