Fault diagnosis method of nonlinear electromechanical system
An electromechanical system and fault diagnosis technology, which is applied in the direction of measuring electricity, measuring electrical variables, motor generator testing, etc., can solve problems such as weakened motor performance, untimely fault diagnosis, and strict requirements
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[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0049] like figure 1 As shown, a fault diagnosis method for nonlinear electromechanical systems includes the following steps:
[0050] S1. Model the nonlinear electromechanical system, and obtain the bond graph model of the nonlinear electromechanical system;
[0051] S2. According to the bond graph model of the nonlinear electromechanical system, the analytical redundancy relationship is obtained, the residual error is generated according to the analytical r...
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