Model-Based Detection and Estimation of DC Offset of Phase Current Sensors for Field Oriented PMSM Drives

Attaianese, C.; D’Arpino, Matilde; Monaco, Mauro Di; Noia, Luigi Pio Di

doi:10.1109/tie.2022.3192683

Cited by 19 publications

(9 citation statements)

References 24 publications

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“…In this paper, both types of faults are considered to be present simultaneously. Because of the non-linearity of the considered system, the principle of superposition of effects is not applicable, and therefore the structure of the model and the solutions obtained in this paper are significantly different from the ones presented in [22], [23].…”

Section: Introductionmentioning

confidence: 80%

“…Thus, the steadystate solution has the form From ( 13), ( 14) and (17), it is possible to deduce that, when a fault of one or more current sensors occurs, the steadystate i d and i q are given by the sum of a series of harmonics having angular frequency hpω r , with h integer. In particular, if only a gain fault occurs, only the harmonics corresponding to even values of h are present [23], while if only an offset fault occurs there are only the harmonics corresponding to odd values of h [22]. The coefficients a d,h , b d,h , a q,h , b q,h , c d , c q are functions of motor parameters, motor speed, gains of the control loops, gains and offsets of the phase current sensors.…”

Section: Steady-state Solutionmentioning

confidence: 99%

“…Because in (22) the number of equations, (4n + 10), is greater than the number of unknowns, (4n + 2), it is an overdetermined system of linear equations. In the following section, a short overview of how to solve such a system is given.…”

Section: Steady-state Solutionmentioning

confidence: 99%

“…According to the method of solution proposed in Section IV, to solve the system of linear equations ( 23), a new system matrix A has to be considered, which must be a square submatrix of the matrix A, having order (4n + 2) × (4n + 2), chosen in such a way that its rank is (4n+2). It is immediate to verify that the sub-system of equations of system (22) obtained for k = n+1 is homogeneous and contains only the unknowns…”

Section: Closed-form Analytical Solutionmentioning

confidence: 99%

“…Third, a sensitivity analysis of the proposed solution to the variations of the motor parameters is conducted in detail. The authors had already addressed the problem of modeling the current signature due to current sensor failures in PMSM drives by considering separately offset [22] and gain failures [23], respectively. In this paper, both types of faults are considered to be present simultaneously.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Current Signature Modeling of Surface-Mounted PMSM Drives With Current Sensors Faults

Attaianese

D’Arpino

Monaco

et al. 2023

IEEE Trans. Energy Convers.

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This paper presents the closed-form analytical determination of the current signature of a surface-mounted permanent magnet synchronous motor drive controlled by means of field oriented control strategy, when a fault occurs in one or more current sensors. Both DC offset and gain fault for all phase current sensors are considered. The proposed model includes the response of the control loop and related gains, eliminating the need for phase voltage sensors and complicated state estimation. However, the proposed approach requires the solution of an overdetermined system of equations. Then a new methodology of solution is proposed to save computing time, as an alternative to the classical one based on the Moore-Penrose pseudoinverse matrix. Experimental results and sensitivity analysis to parameter variations confirm the validity of the proposed model.

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Section: Introductionmentioning

confidence: 80%