Analysis of Current Unbalance and Torque Ripple Generated by Simulations of Voltage Unbalance in Induction Motors

Guasch-Pesquer, Luis; Jaramillo-Matta, Adolfo-Andres; González-Molina, F.; Garcia-Rios, Sara

doi:10.1007/978-3-319-66963-2_42

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…However, among the most outstanding studies are the effects produced by voltage unbalances in different types of loads, particularly in three-phase induction motors. In this field, the effects have been analyzed on: performance [11][12][13][14][15], torque [14,16,17], vibrations [16,18], current [17,18], temperature [15,19], power [16], power factor [15], noise [18] or performance types [20], as well as studies that analyze the influence of the power of the loads that generate unbalances in the VUF [21].…”

Section: Introductionmentioning

confidence: 99%

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Improved Method for Determining Voltage Unbalance Factor Using Induction Motors

Guasch-Pesquer

Garcia-Rios²,

Jaramillo-Matta

et al. 2022

Energies

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This work shows an alternative method to determine the Voltage Unbalance Factor in a power grid by using both the mean value of the line voltages and Current Unbalance Factor in induction motors. Twenty unbalanced voltage points on three induction motors were used in order to compare the two methods. The influence of the measurement error of both the voltmeters and the ammeters on the resulting Voltage Unbalance Factor was studied, and the validation was made with laboratory data for one of the three motors analyzed, in addition to the simulations carried out. The proposed Voltage Unbalance Factor was compared with the most typical method in the standards to obtain this factor, showing that the proposed factor has a better approach than the standard factor to determine the value of the Voltage Unbalance Factor in an unbalanced power system.

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Section: Introductionmentioning

confidence: 99%

“…In [13], the VUF (or other equivalents) and the typology are characterized by two parameters, defining eight different types of VUF. In [17], they are characterized by the VUF, the typology, and the direct component of the triphasic voltage, V 1 . In [22], they are characterized by the VUF and the Equivalent Voltage Magnitude Factor.…”

Section: Introductionmentioning

confidence: 99%

Improved Method for Determining Voltage Unbalance Factor Using Induction Motors

Guasch-Pesquer

Garcia-Rios²,

Jaramillo-Matta

et al. 2022

Energies

Self Cite

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Development of simulation models of traction for evaluating the possibility of reducing intermittent current unbalance

Bordadyn

Marinov

Shish

et al. 2022

2022 4th International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)

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Power Balance and Power Factors of Distorted Electrical Systems and Variable Speed Asynchronous Electric Drives

et al. 2021

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In this study, power quality coefficients that determine the distortion of electrical systems are established. The power factor is chosen as a universal criterion for electromagnetic and electro-energetic compatibility of distorted sources and distorting loads. Mathematical expressions are obtained for its calculation in various cases of electrical systems distortion. As an application example, power balances and power factors of a variable frequency asynchronous drive system are considered. The criterion: the power factor not only determines the energy and electromagnetic compatibility of the drive with power supply, but it also evaluates drive efficiency. Experimental studies were carried out under usage of inexpensive, commonly used measuring devices both on the grid side of the frequency converter and on the asynchronous motor side. The studied coefficients were determined in two ways: measuring instruments and analysis of oscillograms. The second method for determining the above coefficients from oscillograms of currents and voltages also requires finding the total harmonic distortion (THD) of currents and voltages for the corresponding load adjusting points. The similarity of the obtained results shows that both of these methods can be applied. According to the operating mode of the load, the criterion is calculated as an average range in a certain range of speed control, or it is determined by considering a given tachogram of speed changes. The results of experimental studies confirm the correctness of the theoretical provisions.

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Analysis of Current Unbalance and Torque Ripple Generated by Simulations of Voltage Unbalance in Induction Motors

Cited by 3 publications

References 11 publications

Improved Method for Determining Voltage Unbalance Factor Using Induction Motors

Improved Method for Determining Voltage Unbalance Factor Using Induction Motors

Development of simulation models of traction for evaluating the possibility of reducing intermittent current unbalance

Power Balance and Power Factors of Distorted Electrical Systems and Variable Speed Asynchronous Electric Drives

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