Voltage harmonic injection angle optimisation for grid current harmonics using a PV converter

Bouloumpasis, Ioannis; Vovos, Panagis N.; Georgakas, Konstantinos G.

doi:10.1049/iet-pel.2018.5608

Cited by 6 publications

(4 citation statements)

References 28 publications

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“…The grid impedance greatly affects the voltage drop/rise with the loading variations, as well as the effect of the SB's counteraction to these fluctuations with the injection/absorption of reactive power and active power consumption. Moreover, it affects the control scheme of the harmonics mitigation and, more specifically, the proper phase angle of the injected mirror harmonics [26]. Without ignoring the fact that its value is frequency dependent, it may be considered approximately constant for low-order harmonics.…”

Section: Feedermentioning

confidence: 99%

Grid Quality Services from Smart Boilers: Experimental Verification on Realistic Scenarios for Micro-Grids with Demand-Side Management Oriented to Self-Consumption

Dimitrakakis,

Georgakas,

Topalis

et al. 2024

Energies

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The deeper penetration of renewables in the energy mix is an intense requirement in order to reduce global carbon dioxide emissions. In addition, new technologies are being developed, such as electric mobility and Distributed Generation (DG) in urban areas. However, the unpredictable fluctuations in energy generation from roof-installed PVs and the switching operation of their inverters greatly aggravate the already-present grid quality problems. In this paper, the Smart Boiler (SB) concept for grid quality improvement is presented. Furthermore, its experimental verification is implemented on a flexible testbed that accurately emulates several realistic scenarios for the low voltage distribution grid, under complex operating conditions. The proposed low-cost electronic kit, which contains a converter of fairly simple topology and requires connection to the internet, is used to upgrade conventional domestic boilers to smart devices. The SB automatically regulate the local reactive power flow, helping to stabilize the voltage level and suppress the grid current harmonic content, with both services provided in a matter of seconds. The higher the active power consumed and the denser the SB cluster, the wider the beneficial impact on the affected network area. While this service is provided, excess energy generated by PVs is temporarily stored as heat in the boiler tanks, given the users’ hot water consumption habits. The whole application, as a powerful demand-side management tool, proves beneficial for both the network operator and the end-user, especially when self-consumption is desirable in order to achieve a Nearly Zero Energy Building.

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Section: Feedermentioning

confidence: 99%

Grid Quality Services from Smart Boilers: Experimental Verification on Realistic Scenarios for Micro-Grids with Demand-Side Management Oriented to Self-Consumption

Dimitrakakis,

Georgakas,

Topalis

et al. 2024

Energies

Self Cite

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“…Esmaeil Zangeneh Bighash et al [13] gave a cutting edge reference is one after not entirely settled for remunerating every symphonious issue. Then, at that point, a chose measure of additional current potential is most likely dedicated for each issue to remunerate by means of method of method of method of the utilization of versatile benefit.…”

Section: Related Workmentioning

confidence: 99%

An Efficient Optimized Mppt for Pv System Under Extremely Fast Changing Irradiance –Hybrid Flower Pollination Optimizer

T¹,

Punitha²

2022

ESP-JETA

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In final an extended time, renewable energy belongings have gain extra hobby due to the fact the call for of strength is growing. solar energy is truly the maximum operational useful resource withinside the magnificence of renewable energies as it's miles to be had global. sun electricity may be transformed into energy in ways; with the aid of using the use of CSP energy vegetation or Photovoltaic structures. The solar electricity is converted to warmness after which this power is transformed to power in CSP power flora. However, this modification of electricity can be executed in a unmarried-step technique with the aid of using the use of sun panels and PV era. This generation is quite relied on sun irradiance and temperature. For every specific second, there's a maximum power factor (MPP) and its price is relied on irradiance and temperature. the identical antique strategies can't carry out sufficiently. Metaheuristic optimization algorithms can be used to tune MPP in each ordinary situation and partial shading situation. the precept benefit of using them is that they are speedy in operation and they do now not trap in community optimums. This paintings uses FPO and GWO in maximum strength tracking (MPPT) in PV systems.

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“…The course of power electronics is a specialised course for students of electrical engineering. It mainly studies electric energy conversion technology [25][26][27], such as ac-dc converter technology, dc-ac converter technology, dc-dc converter technology and ac-ac converter technology.…”

Section: Course Overview and Proposed Teaching Approachmentioning

confidence: 99%

Effect analysis of the teaching method of mutual result correction between students in an experiment of power electronics course

Zhao

2021

IET Circuits, Devices & Syst

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In order to deepen students' understanding of experimental content and improve the accuracy of experimental results based on improving students' learning initiative, in this study, a teaching method is proposed that lets students check and correct experimental results among themselves after doing experiments. Teachers guide students in experiments but do not check and correct experimental results. At the end of the experiments, students check each other and correct the results of the experiments from the perspective of the teachers. When the experimental results are correct, the experiment ends. If problems are found, the correct experimental results can be obtained by modifying or redoing the experiment. In this study, the sinusoidal pulse width modulation inverter circuit experiment in power electronics course is taken as an example for practical teaching research. There are two classes in this study: one that applies the method and the other that does not. According to the statistics and analysis of the correct rate of experimental results and the answers to thinking questions, students who checked or corrected each other deepened their understanding of the experimental content when both groups did the experiments correctly. When the experimental results of the two groups are different, students can learn from each other, discuss with each other, redo the experiment, and correct wrong results so as to improve the accuracy of the experimental results and the correct answer rate of thinking questions. Through the questionnaire survey, the method proposed in this study enables students to correct the experimental results from the perspective of teachers, thus improving students' awareness of mutual learning and active learning. It can improve the experimental effect. K E Y W O R D S educational courses, power electronics, power engineering educationThis is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Voltage harmonic injection angle optimisation for grid current harmonics using a PV converter

Cited by 6 publications

References 28 publications

Grid Quality Services from Smart Boilers: Experimental Verification on Realistic Scenarios for Micro-Grids with Demand-Side Management Oriented to Self-Consumption

Grid Quality Services from Smart Boilers: Experimental Verification on Realistic Scenarios for Micro-Grids with Demand-Side Management Oriented to Self-Consumption

An Efficient Optimized Mppt for Pv System Under Extremely Fast Changing Irradiance –Hybrid Flower Pollination Optimizer

Effect analysis of the teaching method of mutual result correction between students in an experiment of power electronics course

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