Validation of PV Inverters Frequency Response Using Laboratory Test Platform

Mastny, Petr; Vojtek, Martin; Morávek, Jan; Vrana, Michal; Klusáček, Jan

doi:10.1109/epe51172.2020.9269247

Cited by 2 publications

(3 citation statements)

References 4 publications

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“…However, the analysis of individual articles together with partial details would significantly exceed the permissible scope of this work. The reason for compliance with these articles is described, for example, in [8], which deals with the verification of the LFSM-O function. Here it is possible to see that some of the inverters meet the required settings for CZE, some of them react badly and in one case even to completely the inverter from the grid, Figure 1.…”

Section: Power Generating Modulementioning

confidence: 99%

Implementation of procedures and evaluation of data from compliance tests of Power Generating Modules of categories A1 and A2

Bláha¹

2022

Proceedings II of the 28st Conference STUDENT EEICT 2022: Selected Papers.

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The ever-increasing number of untested small Power Generating Modules (PGM) poses certain challenges and risks for Distribution System Operator (DSO) in the future, as these PGM have not been verified and therefore DSO cannot reliably predict their behavior, especially in extreme situations. However, to ensure reliable operation and power quality, it is necessary to require certain behavior of PGMs. This behavior is already almost defined, but there is lack of an accurate verification procedure and functional test workplace to enable PGM testing. This paper deals with both the principle of testing and the processing of measured data and their evaluation, together with the creation of an output measurement report. The correct data processing and representation is crucial task for a certified workplace, which would enable PGM testing.

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Section: Power Generating Modulementioning

confidence: 99%

Implementation of procedures and evaluation of data from compliance tests of Power Generating Modules of categories A1 and A2

Bláha¹

2022

Proceedings II of the 28st Conference STUDENT EEICT 2022: Selected Papers.

View full text Add to dashboard Cite

show abstract

“…Furthermore, in references [24][25][26][27][28][29], different desired requirements of PV inverters are discussed. Reference [24] reviews and analyses existing voltage control methods to improve voltage regulation and to increase hosting capacity in low-voltage networks.…”

mentioning

confidence: 99%

“…Performed simulations showed that the proposed method can regulate voltages better than the regulation based on non-centralised reactive power control using standard Q = f(U) characteristics. In reference [26], the authors give an overview on the necessary features of grid-connected inverters, which according to the German grid codes, should contribute to: Performed simulations showed that the implemented abovementioned additional abilities of the grid-connected inverters improved power quality at the point of connection and contributed to their safety and smooth operation. In reference [27], the authors, in terms of the Horizon 2020 InterFlex project, conducted research on increasing micro-installation hosting capacity in low-voltage networks by activating reactive and active power control characteristics in PV inverters.…”

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confidence: 99%

Photovoltaic Inverter Profiles in Relation to the European Network Code NC RfG and the Requirements of Polish Distribution System Operators

et al. 2021

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The presently observed rapid increase in photovoltaic (PV) micro-installation connections to low-voltage networks, resulting from numerous financial support programmes, European Union (EU) energy policy and growing social awareness of environmental and economic issues, raise the question if PV inverters widely available in EU market fulfil the numerous technical requirements specified in European and Polish regulations. The paper presents the results of an experimental study carried out on three PV Inverters widely available in the EU in accordance with the EU network code NC RfG, standard EN 50549-1:2019 and internal Polish distribution system operators’ (DSOs’) regulations, governing PV inverter cooperation with the low-voltage distribution network. The laboratory test stand scheme and its description are presented. In each test, at least one of the inverters encountered issues, either with the operation in required frequency ranges (one PV inverter), activating reactive power control modes (all three PV inverters), maintaining required power generation gradient after tripping (one PV inverter) or under-voltage ride through immunity (one PV inverter). The obtained results have shown that all tested PV inverters did not meet requirements that are the key to maintaining reliable and safe operation of transmission and distribution electrical networks.

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Validation of PV Inverters Frequency Response Using Laboratory Test Platform

Cited by 2 publications

References 4 publications

Implementation of procedures and evaluation of data from compliance tests of Power Generating Modules of categories A1 and A2

Implementation of procedures and evaluation of data from compliance tests of Power Generating Modules of categories A1 and A2

Photovoltaic Inverter Profiles in Relation to the European Network Code NC RfG and the Requirements of Polish Distribution System Operators

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