A Novel Gas Turbine Engine Health Status Estimation Method Using Quantum-Behaved Particle Swarm Optimization

Table 4

Comparisons of the four methods on test case .

Engine; degradation	Implanted degradation (%)	lGPA			nGPA			GA			QPSO
		Con1	Con2	Con3	Con1	Con2	Con3	Con1	Con2	Con3	Con1	Con2	Con3
-1	−1.0	−1.033	−0.955	−1.088	−1.036	−1.047	−1.063	−1.022	−0.968	−0.967	−1.032	−0.959	−1.025
-1	−3.0	−3.078	−3.157	−3.212	−3.086	−3.174	−2.83	−3.067	−2.873	−3.092	−2.896	−2.926	−3.112
-1	0	0.041	−0.038	0.072	−0.041	0.054	0.047	0.032	0.039	0.048	0.027	0.035	0.038
-1	0	−0.037	−0.062	0.076	−0.037	0.054	−0.049	0.034	0.042	−0.034	−0.037	0.025	0.045
-1	0	−0.025	−0.051	0.056	0.028	−0.035	0.051	−0.041	0.023	0.043	0.030	0.032	−0.035
-1	0	0.041	−0.063	0.054	0.040	0.030	0.045	0.033	−0.035	0.040	0.036	0.022	0.035
-1	0	0.044	0.052	−0.086	0.036	0.037	−0.05	0.029	0.043	−0.04	−0.039	0.035	0.027
-1	0	−0.032	−0.05	−0.076	0.030	0.052	−0.073	−0.035	0.046	−0.045	0.026	0.022	0.044