The Diagnostic Method for Open-Circuit Faults in Inverters Based on Extended State Observer

Table 6

Comparison of the proposed fault diagnosis method and other fault methods.

Fault diagnosis method	Objector	Diagnosis time	Robustness	Cost	Fault type
The neural network method	Both	More than one cycle	Low	Low	Single
The fuzzy logic method	Both	More than one cycle	Medium	High	Multiple
Park’s vector approach	Open-loop	More than one cycle	Low	Low	Single
Spectrum analysis method	Both	More than one cycle	Medium	High	Single
The proposed method	Both	About 1/3 cycle	High	Low	Multiple