Localization of the Phase Voltage Measurement Location for Active Power Filter Controlling

Tugay, Dmitry; Korneliuk, Serhii; Akymov, Valentyn; Zhemerov, George G.

doi:10.1109/ieps51250.2020.9263137

Cited by 2 publications

(2 citation statements)

References 23 publications

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“…Despite the fact that the mathematical apparatus for calculating the loss power components, based on the use of the provisions of modern power theory, is the same for both the measuring device and PAF, the place of installation of voltage and current sensors (or measuring current transformers) for these two cases must also coincide. In [19] it is proved, that the voltage sensors for measuring the instantaneous values of phase voltages of the threephase system is advisable to install on the load terminals, rather than on the power supply terminals, to enhance the efficiency of compensation and operation of the PAF in general. Fig.…”

Section: New Four-component Model Of the Total Loss Power Components Of The Three-phase Pssmentioning

confidence: 99%

A Decomposition Four-Component Model for Calculating Power Losses in Low-Voltage Power Supply Systems

Tugay

Shkurpela

Akymov

et al. 2021

LEPE

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A new model for decomposition of the total power losses, which includes four components is proposed. Each of the components of the proposed model has a certain physical meaning due to the nature of electromagnetic processes in a three-phase four-wire system. Definitions to describe each of the proposed components are formulated. It is shown that each of supplementary components of the total loss power is proportional to the minimum possible loss power and to the square of the RMS value of the power, which is caused by its occurrence in three-phase four-wire power supply system, and it is inversely proportional to the mean square of the net power loss. The synthesized Matlab-model for verification of the four-component structure of power losses showed a high degree of its adequacy. The proposed model allows us to rethink the description of power losses in three-phase AC circuits and can be used in specialized measuring instruments for electrical networks monitoring. Using the information obtained in the monitoring process, it is possible to plan technical measures to reduce losses of electrical energy in the power supply system, as well as to estimate the capital costs of these measures.

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Section: New Four-component Model Of the Total Loss Power Components Of The Three-phase Pssmentioning

confidence: 99%

A Decomposition Four-Component Model for Calculating Power Losses in Low-Voltage Power Supply Systems

Tugay

Shkurpela

Akymov

et al. 2021

LEPE

Self Cite

View full text Add to dashboard Cite

show abstract

“…In [30,31], the study of improving the output voltage waveform of two-level voltage inverters using output sine filters is presented. However, the works do not provide a study of sinusoidality of the output voltage of the inverter with the sine filter, do not define the method of calculating the components taking into account the requirements for ensuring the total harmonic distortion of 5 %.…”

Section: Introductionmentioning

confidence: 99%

A method for calculating the parameters of the sine filter of the frequency converter, taking into account the criterion of starting current limitation and pulse-width modulation frequency

Nerubatskyi

Plakhtii

Hordiienko

et al. 2021

EEJET

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An analysis of the method for ensuring the sinusoidality of the output voltage in power generation systems with self-commutated voltage inverters under the requirements of the international standard IEEE-519 is presented. In a number of programs, especially low-power generation systems, a low-cost solution is needed to provide the sinusoidal waveform of the output voltage with the total harmonic distortion of 5 %. This solution is to use two-level voltage inverters with an output sine LC filter. However, the feature of the sine filter with the frequency converter is that the PWM frequency affects the spectrum of higher harmonics of the output voltage. In addition, there is the starting current of the filter capacitor, which can disable the power switches of the voltage inverter. The developed method for calculating the values of the LC filter with the two-level voltage inverter in the PWM mode is presented meeting the requirements of the international standard IEEE-519, taking into account the modulation frequency and limitation of the starting current of the filter capacitor. To confirm the required quality of the output voltage of the two-level voltage inverter with the sine filter, an appropriate simulation model was created in the Matlab/Simulink computer simulation environment. The oscillograms and harmonic analysis of the input and output voltages of the sine filter, which showed the total harmonic distortion of 1.88 %, are presented. A physical prototype of the investigated system was created on the basis of a 5.5 kW OVEN PChV203-5K5-V frequency converter (Ukraine). Using the SIGLENT SDS1104X-E oscilloscope (China), the real waveform and the results of the harmonic analysis of the sine filter output voltage, confirming the implementation of the necessary sinusoidality criteria, were obtained

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Localization of the Phase Voltage Measurement Location for Active Power Filter Controlling

Cited by 2 publications

References 23 publications

A Decomposition Four-Component Model for Calculating Power Losses in Low-Voltage Power Supply Systems

A Decomposition Four-Component Model for Calculating Power Losses in Low-Voltage Power Supply Systems

A method for calculating the parameters of the sine filter of the frequency converter, taking into account the criterion of starting current limitation and pulse-width modulation frequency

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