The Performance of a Three-Phase Induction Motor under and over Unbalance Voltage

Jassim, Abdulsatar H.; Hussein, Arkan Ahmed; Abbas, Laith F.

doi:10.25130/tjes.28.2.02

Cited by 5 publications

(2 citation statements)

References 24 publications

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“…According to some research on the effect of voltage imbalance on the motor, a simple change of 3% in voltage imbalance causes the temperature to rise by 25% [11], [13]. When a motor is fully loaded, the value of unbalanced phase current is (6)(7)(8)(9)(10) times the percentage value of unbalanced voltage at the terminals [6], [14]. A phase loss distorts the voltage imbalance significantly [5].…”

Section: Introductionmentioning

confidence: 99%

An Efficient Protection Scheme Against Single-Phasing Fault for Three-Phase Induction Motor

Dawood,

Ismeil,

Hussein

et al. 2024

IEEE Access

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The loss of one phase of a three-phase Induction Motor (IM) is one of the main causes of motor failure due to overheating. Several protection devices protect IM against this fault, but the majority of conventional devices lack a thorough classification of this type of fault. So, this paper introduces a highefficiency protection scheme to detect and classify in detail 15 types of faults that can occur due to a phase loss of a three-phase IM. These faults are classified according to the defective phase, fault location either from the power source or beyond the relay point, and motor action modes (standstill mode, transient mode, and steady state mode). One of the advantages of the presented protection method is that it is suitable for many motors because the inputs to the proposed scheme are the per-unit values of both RMS line-line voltages and line currents. The proposed scheme has been validated and tested using MATLAB Simulink under normal conditions and different faults for phase loss, during and after disconnecting the motor, and after pushing the restart button. The simulation results show that the proposed scheme behaves with high efficiency and it is able to detect and classify correctly the phase loss faults for three-phase IM within 1.5 cycles (30 ms) of the fault inception. Thus, the proposed scheme can be used as a simple and reliable scheme in the protection system of a 3-phase IM to detect and classify the different types of phase loss faults.

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Section: Introductionmentioning

confidence: 99%

An Efficient Protection Scheme Against Single-Phasing Fault for Three-Phase Induction Motor

Dawood,

Ismeil,

Hussein

et al. 2024

IEEE Access

View full text Add to dashboard Cite

show abstract

“…MATLAB/Simulink was used to develop and simulate the driving system. A pulse controller that used two pulse width modulation (PWM) levels controlled the inverter switches [23]. The contribution of this work, i.e., Single phasing effects on the behavior of a 3φIM", is to analyze the effects of single-phasing on the performance of an IM in its steady state condition at different supply voltage unbalance.…”

Section: Introductionmentioning

confidence: 99%

Single Phasing Effects on the Behavior of Three-Phase Induction Motor

Layth Fadhil Abbas,

Ahmed,

Mahmmoud

et al. 2023

Tikrit j. eng. sci.

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The output of three-phase induction motors (3IM) is adversely affected by voltage imbalance. This work analyzes and estimates the output of a 3PIM operating on a balanced supply while contrasting it with a "single phasing" case. Simulation additionally makes use of MATLAB /SIMULINK. The effects of single phasing on a 3PIM's performance for system rerating are suggested. An example was given using a 4 kW 3PIM. It is not a big problem; however, it should be considered if a three-phase motor is purposely connected to a single-phase source or whenever a three-phase source loses one of its phases due to a fault. When a three-phase motor operates in a single-phase, the motor will continue to try to run the load until it is destroyed or the protective components remove the motor from the line. The outcome of single phasing is an increase in phase currents, which causes overheating and damage to the motor. A downline on the distribution grid or a blown pole upper fuse might cause a phase loss on a three-phase line. A single-phase overload condition that causes one fuse to blow or a device breakdown inside the end-user facility may also result in a single-phase loss.

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Derating factor determination of the three‐phase induction motor under unbalanced voltage using pumping system

Majeed,

Seifossadat,

Saniei

et al. 2024

IET Electric Power Appl

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A novel method is presented for determining the derating factors of a three‐phase induction motor under the condition of the unbalanced supply voltages. In this method, a mechanical system is used which consist of the a centrifugal pump, two valves, a DC motor, which are connected to the shaft of the three‐phase induction motor. A sliding mode control system is used for position control of the DC motor for adjusting the valve angle for derating the induction motor. The authors present the results of an experiment in which a three‐phase induction motor was subjected to various unbalanced voltage conditions. The results of simulations were used to look into what happened when there were different levels of imbalanced voltage. This was done to determine how these situations changed an induction motor's speed, torque, and efficiency. For this system, the stator current would be greater than the rated current if there was an imbalance in the supply voltage. Therefore, to reduce the amount of power that the three‐phase induction motor can produce, the control system uses a DC motor to reduce the angle of one of the two valves. This decreasing angle continues until the root mean square value of the stator current returns to the rated current. At this point, the derating factor may be calculated by dividing the output power of the three‐phase induction motor in the unbalanced condition by the output power when there are ideal sinusoidal. The MATLAB SIMULINK environment is utilised to perform simulations of the proposed system.

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The Performance of a Three-Phase Induction Motor under and over Unbalance Voltage

Cited by 5 publications

References 24 publications

An Efficient Protection Scheme Against Single-Phasing Fault for Three-Phase Induction Motor

An Efficient Protection Scheme Against Single-Phasing Fault for Three-Phase Induction Motor

Single Phasing Effects on the Behavior of Three-Phase Induction Motor

Derating factor determination of the three‐phase induction motor under unbalanced voltage using pumping system

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