Study on the Harmonic Amplification Influence of DC Inverter Substation With Cable Outgoing Line on the Receiving-end Power Grid

Geng, Xin; Su, Guang; Lu, Wei; Zhou, Xiong; Gao, Yu; Bu, Xiaohong; Yan, Han; Du, Sidan

doi:10.1109/aeees51875.2021.9402975

Cited by 4 publications

(2 citation statements)

References 1 publication

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“…𝑙 is the line length. It can be seen from [9] that 𝑍 and 𝛾 can be obtained from the following equation:…”

Section: Analysis Of Harmonic Transmission Characteristics Of Urban P...mentioning

confidence: 99%

Research on Urban High Voltage Power Network Harmonic Transfer and Emission Level

Liu

et al. 2022

J. Phys.: Conf. Ser.

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With the rapid growth of urban power transmission cable scale, the harmonic pollution in the high-voltage power grid is more transmitted to other power grids of different voltage levels, which makes the harmonic transmission more complicated, increases the harmonic emission level, and makes it difficult to quantitatively analyze and study the allowable value of users’ electrical pollution emission. Therefore, in this paper, by establishing the harmonic conduction model of the urban high-voltage power grid and considering the equivalent circuit of transformer and transmission cable in the urban power grid, the parameters of transmission cable harmonic transfer coefficient and the allowable emission value of power quality pollution of the urban power grid are deduced and quantitatively analyzed. Then the harmonic transmission and mutual influence of urban power network harmonics in power transmission cable are analyzed through examples, which is helpful to determine the allowable value of harmonic pollution emission scientifically and reasonably.

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“…𝑙 is the line length. It can be seen from [9] that 𝑍 and 𝛾 can be obtained from the following equation:…”

Section: Analysis Of Harmonic Transmission Characteristics Of Urban P...mentioning

confidence: 99%

Research on Urban High Voltage Power Network Harmonic Transfer and Emission Level

Liu

et al. 2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…However, some manufacturers do not understand the background harmonics and impedance of the system, so they determine the parameters of the SVG with inductors in series based on experience in actual production. In this way, the SVG may resonate with the distribution network in the process of reactive power compensation, causing harmonic amplification in the system and making the harmonic pollution problem more serious instead [5].…”

Section: Introductionmentioning

confidence: 99%

Research on High Harmonic Amplification of 10kV Series Static Var Generator

Ding

et al. 2023

J. Phys.: Conf. Ser.

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With the continuous development of power electronic devices and science and technology, cables and rectifiers, inverters, DC transmission equipment, and other nonlinear loads have been widely used in power systems. However, this causes harmonic pollution and large capacitive reactive power, which can affect the safe and stable operation of the power system. Based on the analysis of the reasons for the use of static var generator in the power grid and the existing conditions of even harmonic, the impedance analysis method was used to analyze the abnormal noise event of a transformer in a substation. Firstly, the equivalent impedance model diagram is drawn by the equivalent circuit method, and the equivalent impedance value of the system is calculated. A number of harmonic amplifications and the positions of the resonance point are calculated by MATLAB software. Secondly, the correctness of the above theoretical analysis is verified by field test and simulation model built in ETAP software. Finally, because of the abnormal noise of the transformer in a substation caused by harmonic amplification, three harmonic suppression measures are given.

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Research and software development on auxiliary checking method of harmonic tolerance for substation main equipment

Wang

Yakun

et al. 2022

2022 4th International Academic Exchange Conference on Science and Technology Innovation (IAECST)

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Study on the Harmonic Amplification Influence of DC Inverter Substation With Cable Outgoing Line on the Receiving-end Power Grid

Cited by 4 publications

References 1 publication

Research on Urban High Voltage Power Network Harmonic Transfer and Emission Level

Research on Urban High Voltage Power Network Harmonic Transfer and Emission Level

Research on High Harmonic Amplification of 10kV Series Static Var Generator

Research and software development on auxiliary checking method of harmonic tolerance for substation main equipment

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