An Open-End Winding BLDC Motor Drive With Fault Diagnosis and Autoreconfiguration

Kumar, Patnana Hema; Lakhimsetty, Suresh; Somasekhar, V. T.

doi:10.1109/jestpe.2019.2948968

Cited by 26 publications

(29 citation statements)

References 24 publications

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“…First, it is intended to demonstrate that the diagnostic algorithm proposed in Kumar et al 30 displays a tendency to misjudge the occurrence of the OCF. As the present focus is only on the assessment of the merit of the fault diagnosis, the steps of post‐fault circuit reconfiguration and reconnection are not carried out (for experimental results presented in Figures 12 and 13), even after the (spurious) false affirmation.…”

Section: Resultsmentioning

confidence: 99%

“…The work by authors 30 proposes an algorithm that is suitable to diagnose the OCF for an OEWBLDC drive. However, this algorithm shows a tendency for false positive detection during dynamic operations of the drive.…”

Section: Fault Diagnosis and Controlmentioning

confidence: 99%

“…The OCF proposed in Kumar et al 30 is briefly outlined as follows: In order to detect the OCF, two Hall CTs are required to sense the respective DC link currents of the two VSIs. The algorithm is based on the observation that if any single device develops an OCF, it would miss conduction during those modes of operation, which need the conduction of the faulty device.…”

Section: Fault Diagnosis and Controlmentioning

confidence: 99%

“…This technique is based on the observation that, for any given phase‐leg of a BLDC motor, there exists an interval of 60° (electrical) between turning off the top switch of a given phase leg and turning on the bottom one. This technique, which is essentially anticipatory in nature, manages to prevent the over‐currents associated with the shoot‐through of the two devices (one of which develops the SCF) belonging to a given phase leg, before its occurrence 30 . With the proposed topology and the reconfiguration procedure (inverter reconfiguration and battery reconnection) mentioned in Section 2, the drive is capable of delivering full rated power (speed) and torque for the SCF occurrence in either of the dual‐inverter configuration.…”

Section: Fault Diagnosis and Controlmentioning

confidence: 99%

“…In the work by Kumar et al, 30 a dynamically reconfigurable dual‐inverter fed OEWBLDC motor drive is proposed. The proposed drive configuration is capable of handling OCF/SC faults in any of the switching devices.…”

Section: Introductionmentioning

confidence: 99%

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A cost‐effective and fault‐tolerant brushless direct current drive with open‐stator windings for low power electric vehicles

Patnana

Tirumala

2021

Circuit Theory & Apps

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Summary Dual‐inverter‐driven open‐end winding brushless direct current motor (OEWBLDCM) drives are amenable for the implementation of some interesting fault‐tolerant features, which could find useful applications in low power electric vehicles (EVs). The power semiconductor switching devices in the dual‐inverter system are vulnerable to the development of open‐circuit faults (OCFs) and the short‐circuit faults (SCFs). This paper investigates the possibility of imparting complete fault‐tolerant capability to EVs, which employ OEWBLDC motors for propulsion. With the proposed dynamic post‐fault reconfiguration of the power circuit and the reconnection of the battery banks, it is possible to deliver the rated (i.e., 100%) post‐fault output power to the BLDC motor, despite the failure of a power semiconductor switching device (because of either an OCF or an SCF) in the dual‐inverter system. The feasibility evaluation of the proposed fault‐tolerant drive reveals that the aforementioned objectives are realizable at an affordable hike in the raw material cost of the propulsion system. Simulation studies and Experimental verification on a laboratory prototype validate the proposed fault‐tolerant OEWBLDCM drive.

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Section: Resultsmentioning

confidence: 99%

Section: Fault Diagnosis and Controlmentioning

confidence: 99%

Section: Fault Diagnosis and Controlmentioning

confidence: 99%

Section: Fault Diagnosis and Controlmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A cost‐effective and fault‐tolerant brushless direct current drive with open‐stator windings for low power electric vehicles

Patnana

Tirumala

2021

Circuit Theory & Apps

Self Cite

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A low‐cost fault‐tolerant permanent magnet brush‐less direct current motor drive for low‐power electric vehicle applications

Kumar

Lakhimsetty

Somasekhar

2023

Circuit Theory & Apps

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SummaryThis paper proposes a fault‐tolerant power converter for a voltage source inverter (VSI)‐driven permanent magnet brush‐less direct current (PM‐BLDC) motor drive, which is suitable for low‐power electric vehicle (EV) applications. With the proposed topology, it is possible to deliver rated power to the PM‐BLDC motor even after the incidence of either an open‐circuit fault (OCF) or a short‐circuit fault (SCF) in any one of the switches, which constitute the VSI. The proposed fault‐tolerant PM‐BLDC motor drive requires fewer additional sensors and components compared to the fault‐tolerant power converters, which are reported in the previous literature. Cost analysis, carried out for a 3‐kW motor drive, reveals that an additional cost of only 5% is added to the raw material cost of the traditional PM‐BLDC motor configuration to facilitate fault tolerance. The fault‐tolerant operation of the proposed power converter is experimentally verified with a low‐power laboratory prototype.

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Fault Tolerant Control for Open Winding Brushless DC Motor with Power Device Failure

Huang,

Luo,

Zhang

et al. 2024

J. Electr. Eng. Technol.

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An Open-End Winding BLDC Motor Drive With Fault Diagnosis and Autoreconfiguration

Cited by 26 publications

References 24 publications

A cost‐effective and fault‐tolerant brushless direct current drive with open‐stator windings for low power electric vehicles

A cost‐effective and fault‐tolerant brushless direct current drive with open‐stator windings for low power electric vehicles

A low‐cost fault‐tolerant permanent magnet brush‐less direct current motor drive for low‐power electric vehicle applications

Fault Tolerant Control for Open Winding Brushless DC Motor with Power Device Failure

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