Predictive Torque Control of Three-Phase Induction Motor Drive With Inverter Switch Fault-Tolerance Capabilities

Yelamarthi, Bhaskar S S Gupta; Sandepudi, Srinivasa Rao

doi:10.1109/jestpe.2020.3020328

Cited by 12 publications

(7 citation statements)

References 34 publications

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“…In recent years, to keep machine drive systems working under fault conditions, FTC technologies have been considered. For a 3φ IM driving system, much improvement of FTC techniques under sensor faults [8,9], IM faults [10] and converter faults [11] have been achieved. For example in [8], a simple FTC technique for a 3φ IM drive under the current sensor fault was studied.…”

Section: Introductionmentioning

confidence: 99%

A novel vector control strategy for sensorless 3φ induction machines under single‐phase fault

Taghinezhad Vaskeh Mahaleh,

Ghanbari,

Ebrahimi

2024

IET Power Electronics

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Safety and reliability are very important in machine driving systems for many industries. A novel rotor flux‐based Vector Control (VC) strategy for Y‐connected 3φ Induction Machines (IMs) without speed sensor under the Single‐Phase Fault (SPF) is proposed. The sensorless VC technique is based on using Asymmetrical Transformation Matrices (ATMs) for stator voltage and current components as well as an Extended Kalman Filter (EKF) for estimation of the speed and d‐q fluxes. Furthermore, a simple model‐based SPF detection mechanism based on the EKF is suggested. The performance of the proposed control scheme for a 1 HP sensorless Y‐connected 3φ IM prototype is validated by several experiments. According to the experimental results, the designed scheme during the SPF has several advantages of improved phase currents and low speed, flux, and torque ripples.

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Section: Introductionmentioning

confidence: 99%

A novel vector control strategy for sensorless 3φ induction machines under single‐phase fault

Taghinezhad Vaskeh Mahaleh,

Ghanbari,

Ebrahimi

2024

IET Power Electronics

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“…This solution has been widely used in both 2-level [37,38,[40][41][42][43][44][45][46][63][64][65][66] and NPC [29][30][31][47][48][49][50][51][52][53][54][55] converters. A similar approach has been proposed for 2-level converters in [61,62], connecting the faulty phase to an auxiliary capacitor instead of the DC bus midpoint. In [67], 2 additional switches are used to bypass the inner IGBTs when faulty.…”

Section: Introductionmentioning

confidence: 99%

“…One solution proposed to avoid a post-fault derating of the converter is to increase the DC bus voltage after the fault [31,[48][49][50]61,65]. This ensures that the initial modulation area is kept in post-fault scenarios, enabling the system to retain full-rated capacity.…”

Section: Introductionmentioning

confidence: 99%

“…The studies in [41][42][43][44][45] correct OC faults in 2-level grid-connected converters by connecting the faulty phase to the midpoint of the DC bus using additional switches. A similar approach is taken in [61], where the faulty phase is connected to an auxiliary capacitor charged at half the DC bus voltage. In these cases, the prediction model is altered in order to consider the correct post-fault output voltage in the faulty phase.…”

Section: Introductionmentioning

confidence: 99%

“…The previously described fault-tolerant FCS-MPC techniques study fault-tolerance in a single converter and imply a derating of the system in post-fault operation. Only the solution in [61] avoids system derating, by doubling the DC bus voltage after a fault is detected (using an auxiliary boost converter which drives the DC bus of the inverter).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Fault Analysis and Non-Redundant Fault Tolerance in 3-Level Double Conversion UPS Systems Using Finite-Control-Set Model Predictive Control

Caseiro

Mendes

2021

Energies

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Fault-tolerance is critical in power electronics, especially in Uninterruptible Power Supplies, given their role in protecting critical loads. Hence, it is crucial to develop fault-tolerant techniques to improve the resilience of these systems. This paper proposes a non-redundant fault-tolerant double conversion uninterruptible power supply based on 3-level converters. The proposed solution can correct open-circuit faults in all semiconductors (IGBTs and diodes) of all converters of the system (including the DC-DC converter), ensuring full-rated post-fault operation. This technique leverages the versatility of Finite-Control-Set Model Predictive Control to implement highly specific fault correction. This type of control enables a conditional exclusion of the switching states affected by each fault, allowing the converter to avoid these states when the fault compromises their output but still use them in all other conditions. Three main types of corrective actions are used: predictive controller adaptations, hardware reconfiguration, and DC bus voltage adjustment. However, highly differentiated corrective actions are taken depending on the fault type and location, maximizing post-fault performance in each case. Faults can be corrected simultaneously in all converters, as well as some combinations of multiple faults in the same converter. Experimental results are presented demonstrating the performance of the proposed solution.

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Single open‐phase fault detection and tolerant control for wye‐connected three‐phase induction machine drives

Saffar,

Ghanbari,

Ebrahimi

2024

Circuit Theory & Apps

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SummaryThis paper proposes open‐phase fault detection (FD) and tolerant control strategies for wye‐connected three‐phase induction machines (WCTPIMs). The FD mechanism is based on the comparison between predicted and actual values of stator currents, and the control approach is derived from the field‐oriented control (FOC). In the proposed fault‐tolerant control (FTC) method, an asymmetrical current transformation is used for stator current components, and the conventional symmetrical voltage transformation is employed for stator voltage components. It is shown that using these transformations, a modified FOC can be employed for the faulty WCTPIM. The suggested scheme is able to control WCTPIM drives under normal and single open‐phase fault (SOPF) modes with minor adjustments. Experimental results achieved from a laboratory prototype confirm the possibility and good performance of the proposed open‐phase FD and tolerant control for the WCTPIM under different operating conditions.

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Predictive Torque Control of Three-Phase Induction Motor Drive With Inverter Switch Fault-Tolerance Capabilities

Cited by 12 publications

References 34 publications

A novel vector control strategy for sensorless 3φ induction machines under single‐phase fault

A novel vector control strategy for sensorless 3φ induction machines under single‐phase fault

Fault Analysis and Non-Redundant Fault Tolerance in 3-Level Double Conversion UPS Systems Using Finite-Control-Set Model Predictive Control

Single open‐phase fault detection and tolerant control for wye‐connected three‐phase induction machine drives

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