A novel robust fault detection method for induction motor rotor by using unknown input observer

Figures & data

Figure 1. Schematic of the proposed method for detecting the rotor fault in the induction motor.

Table 1. Nominal Parameters of the induction motor.

Rs(ohm)	0.531	Ls(mH)	0.0875	Lm(mH)	0.085	J	0.01
Rr(ohm)	0.408	Lr(mH)	0.0875	np(poles pair)	2	frated	50

Figure 2. Residual signal in the first scenario.

Figure 3. The residual signal in the second scenario.

Figure 4. The residual signal in the third scenario.