Application of High Voltage Dividers for Power Quality Indices Measurement

Anokhin, Yurii; Brzhezytskyi, Volodymyr Oleksandrovych; Haran, Yaroslav; Маслюченко, Ігор Миколайович; Protsenko, O. P.; Trotsenko, Ye. O.

doi:10.20998/2074-272x.2017.6.08

Cited by 8 publications

(15 citation statements)

References 4 publications

(9 reference statements)

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“…This is especially true, since modern voltage dividers are quite dimensional devices with a vertical arrangement of components. However, it is pos sible to reduce the negative effect of the nonidentity of the highvoltage arm components by making some adjust ments to the lowvoltage arm components of the voltage divider [6]. According to the theory of voltage dividers [9], the amplitudefrequency characteristic of the voltage divider is determined by the expression:…”

Section: Methods Of Researchmentioning

confidence: 99%

“…It is shown in [6] that the nonidentity of the resis tive components of the highvoltage arm of the voltage divider is negligible compared to the nonidentity of the capacitive components.…”

Section: Methods Of Researchmentioning

confidence: 99%

“…and its amplitudefrequency characteristic is determined by the expressions ( 1)-( 4) when substituting Θ Θ = opt . As a model of capacitive components' nonidentity of the highvoltage arm of the voltage divider, a symmetric «triangular» distribution is used [6]. For this distribution the maximum deviations of the capacitances C i from C 0 are characterized by the ratio:…”

Section: Methods Of Researchmentioning

confidence: 99%

“…The authors also believe that voltage dividers have much greater potential for improvement than instrument trans formers. In this connection, studies on the possibility of using voltage dividers to measure electric power quality parameters [6][7][8] were started at the Department of Theo retical Electrical Engineering of the National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute» (Ukraine). The work being performed contains both experimental and theoretical studies on the possibility of using voltage dividers instead of voltage transformers for measuring the electric power quality parameters.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of amplitude-frequency characteristic of broadband voltage divider intended for measurement of power quality parameters

Brzhezitsky

Trotsenko

Haran

2020

TAPR

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Section: Methods Of Researchmentioning

confidence: 99%

“…It is shown in [6] that the nonidentity of the resis tive components of the highvoltage arm of the voltage divider is negligible compared to the nonidentity of the capacitive components.…”

Section: Methods Of Researchmentioning

confidence: 99%

Section: Methods Of Researchmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Optimization of amplitude-frequency characteristic of broadband voltage divider intended for measurement of power quality parameters

Brzhezitsky

Trotsenko

Haran

2020

TAPR

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“…In this case, the voltage source in the circuit diagram in Fig. 1 is of interest for both technological applications and measuring equipment [9,10]. The peculiarity of this voltage source is that by changing the parameters of the elements it is possible to adjust the amplitude and shape Fig.…”

mentioning

confidence: 99%

Characteristics of Specialized Single-Phase High Voltage Doubler Rectifier

Brzhezitsky

Vendychanskyi²,

Trotsenko

et al. 2018

Elektroteh. elektromeh.

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Introduction. To obtain a high voltage direct current, voltage multipliers with a number of cascades of three or more are widely used. At the same time, for voltage levels of 100…200 kV there are several advantages of using a specialized single-phase high voltage doubler rectifier. Problem. The main difficulty is that at the moment mathematical modeling has not been worked out for describing modes that use the built-in R, C-filter, as well as a nonlinear load in the form of Zener diodes. Goal. with the account of nonlinear pulsations is formulated for the first time. Practical value. The obtained theoretical results can be used for calculations, design, optimization of the modes for a wide range of high-voltage direct current installations of technical, technological, and measuring purposes in the range up to 100...200 kV. References 16, tables 2, figures 3. Key words: voltage doubler rectifier, high-voltage Zener diode, current-voltage characteristic. результаты могут быть использованы для расчётов, проектирования, оптимизации режимов широкого спектра установок высокого напряжения постоянного тока технического, технологического, а также измерительного предназначения в диапазоне до 100…200 кВ. Библ. 16, табл. 2, рис. 3. Ключевые слова: выпрямитель с удвоением напряжения, высоковольтный стабилитрон, вольт-амперная характеристика. Generalization of the results of the authors' previous publications on the development of an analytical method for calculating the modes of a typical high-voltage direct current installation based on a specialized single-phase voltage doubler rectifier. Methodology. Compilation of a system of algebraic linear and nonlinear equations that describe the current and voltage modes in the elements of a typical high-voltage direct current installation with a nonlinear load. Results. It is shown that with the use of linearization of the currentvoltage characteristics of Zener diodes used in the load circuits of a typical high-voltage direct current installation, an analytical solution for the voltages and currents in its elements can be obtained. Originality. The theoretical basis of the complex solution of the system of equations for the currents, voltages and power of the elements of a typical high-voltage direct current installation Цель. Обобщение результатов предыдущих публикаций авторского коллектива по разработке аналитического метода расчёта режимов типовой установки высокого напряжения постоянного тока на основе специализированного однофазного выпрямителя с удвоением напряжения. Методика. Составление системы алгебраических линейных и нелинейных уравнений, описывающих режимы тока и напряжения в элементах типовой схемы установки высокого напряжения постоянного тока с нелинейной нагрузкой. Результаты. Показано, что с применением линеаризации вольт-амперных характеристик стабилитронов, используемых в цепях нагрузки типовой установки высокого напряжения постоянного тока, может быть получено аналитическое решение для напряжений и токов в её элементах. Научная новизна. Впервые сформулирован ...

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