Analysis of supraharmonic emission in a microgrid in islanded and interconnected operation

Romero-L, Miguel; Quintero-Molina, Vanessa; Garzon, Camilo; Pavas, Andres; Blanco, Ana María; Kannan, Shrinath; Meyer, Jan

doi:10.1109/ichqp53011.2022.9808839

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…As the harmonics produced by IBS grow to unacceptable levels, they lead to power outages, tripped circuit breakers, lost communications, and overloading. Supraharmonics (potential difference and current pattern disruption in the spectrum of 1-140 kilo-Hertz) are created when distributed sustainable energy supplies are present in an intermediate voltage system 72 . Harmonics output has been subjected to the rules and regulations established by the grid system to guarantee that the grid's current and voltage patterns are compatible.…”

Section: Quality Of Power and Oscillationsmentioning

confidence: 99%

Review on microgrids design and monitoring approaches for sustainable green energy networks

Ahmed,

Rehan,

Basit

et al. 2023

Sci Rep

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Microgrids are power distribution systems that can operate either in a grid-connected configuration or in an islanded manner, depending on the availability of decentralized power resources, such as sustainable or non-sustainable power sources, battery backup systems, and power demands. The extensive adoption of inverter-based systems poses numerous technological challenges, necessitating a centralized management system to assure the system reliability and monitoring of the energy delivery networks. Thus, this research begins by highlighting these significant obstacles and then analyzes the present-day advances in multilevel control architecture for delivering on promised functionality. This article also discusses the development of innovative control technologies, such as introducing collaborative distributed approaches and reducing conventional three-stage patriarchal administration to fewer stages of system integration and functioning.

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Section: Quality Of Power and Oscillationsmentioning

confidence: 99%

Review on microgrids design and monitoring approaches for sustainable green energy networks

Ahmed,

Rehan,

Basit

et al. 2023

Sci Rep

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“…Electric vehicles (EV), smart household and office appliances, air conditioners, and heating and cooking appliances are also reshaping how the electricity is consumed in modern homes [2,3]. In addition, emerging grid infrastructure technologies, such as microgrids, smart grids, high-voltage direct current transmission (HVDC) systems, flexible alternating current transmission systems (FACTS), and a variety of power electronic controlled equipment are steadily expanding both in capacity and their range of applications [4][5][6][7][8][9][10].…”

Section: Introduction 1recent Trends In Electricity Supply Networkmentioning

confidence: 99%

Measurement of High-Frequency Voltage Harmonics above 2 kHz in High-Voltage Networks

Dewayalage,

Robinson,

Elphick

et al. 2024

Energies

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Large-scale renewable energy plants, flexible AC (alternating current) and high voltage DC (direct current) transmission systems, and modern consumer devices utilize power electronics that tend to increase harmonic emissions. Furthermore, such emissions are nowadays known to exceed the traditional 2 kHz range typically considered for harmonic analysis. However, the accuracy of such harmonic measurements in medium and high voltage networks is questionable due to the lack of accuracy specifications for the respective instrument transformers that are being used in the measurement chain. Therefore, the motivation of this study is to review the existing techniques for measuring high-frequency voltage harmonics, i.e., those in the range 2–9 kHz, in medium-, high-, and extra high-voltage electricity networks, where most large-scale power electronic converters are being connected. Different transducer types are compared in terms of measurement accuracy. The reviewed literature indicates that some transducers can introduce errors due to their nonlinearities. The study also identifies the limitations of calibrating these transducers at frequencies above 2 kHz due to the unavailability of suitable sources capable of generating the required test waveforms. Furthermore, the study emphasizes the necessity for establishing accuracy limits for harmonic measurements above 2 kHz.

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An Improved Wavelet Neural Network Harmonic Detection Method

Jing,

Shi,

Zheng

et al. 2023

2023 10th International Forum on Electrical Engineering and Automation (IFEEA)

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Analysis of supraharmonic emission in a microgrid in islanded and interconnected operation

Cited by 3 publications

References 10 publications

Review on microgrids design and monitoring approaches for sustainable green energy networks

Review on microgrids design and monitoring approaches for sustainable green energy networks

Measurement of High-Frequency Voltage Harmonics above 2 kHz in High-Voltage Networks

An Improved Wavelet Neural Network Harmonic Detection Method

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