Virtual inertia with PV inverters using DC-link capacitors

Eberhard Waffenschmidt; Ron S.Y. Hui

doi:10.1109/EPE.2016.7695607

Virtual inertia with PV inverters using DC-link capacitors

Eberhard Waffenschmidt, Ron S.Y. Hui

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

54 Citations (Scopus)

Abstract

Soon, virtual inertia for grid control must be covered by photovoltaic inverters. It is suggested to use DC link capacitors for this task. This requires 5 W, 50 J and a capacitor size of about 200 cm³ per installed kW, corresponding to the size of single phase DC link capacitors. It is shown that the additional power ripple (and thus current ripple) is in the order of 0.1% and the voltage ripple of the intermediate voltage will typically remain between +/-3.6%. The related control can be easily extended by adding a voltage signal to the control voltage, which is proportional to the frequency deviation. Then, the existing controller inherently sets the required additional power fluctuation required for the virtual inertia function. © 2016 IEEE and EPE Association.

Original language	English
Title of host publication	2016 18th European Conference on Power Electronics and Applications, EPE 2016 ECCE Europe
Publisher	IEEE
ISBN (Print)	9789075815245
DOIs	https://doi.org/10.1109/EPE.2016.7695607
Publication status	Published - 25 Oct 2016
Externally published	Yes
Event	18th European Conference on Power Electronics and Applications, EPE 2016 ECCE Europe - Karlsruhe, Germany Duration: 5 Sept 2016 → 9 Sept 2016

Publication series

Name	2016 18th European Conference on Power Electronics and Applications, EPE 2016 ECCE Europe

Conference

Conference	18th European Conference on Power Electronics and Applications, EPE 2016 ECCE Europe
Place	Germany
City	Karlsruhe
Period	5/09/16 → 9/09/16

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Research Keywords

Control methods for electrical systems
Distribution of electrical energy
Photovoltaic
Renewable energy systems
Smart grids
Smart microgrids
Transmission of electrical energy

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10.1109/EPE.2016.7695607

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Cite this

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title = "Virtual inertia with PV inverters using DC-link capacitors",

abstract = "Soon, virtual inertia for grid control must be covered by photovoltaic inverters. It is suggested to use DC link capacitors for this task. This requires 5 W, 50 J and a capacitor size of about 200 cm3 per installed kW, corresponding to the size of single phase DC link capacitors. It is shown that the additional power ripple (and thus current ripple) is in the order of 0.1% and the voltage ripple of the intermediate voltage will typically remain between +/-3.6%. The related control can be easily extended by adding a voltage signal to the control voltage, which is proportional to the frequency deviation. Then, the existing controller inherently sets the required additional power fluctuation required for the virtual inertia function. {\textcopyright} 2016 IEEE and EPE Association.",

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Waffenschmidt, E & Hui, RSY 2016, Virtual inertia with PV inverters using DC-link capacitors. in 2016 18th European Conference on Power Electronics and Applications, EPE 2016 ECCE Europe., 7695607, 2016 18th European Conference on Power Electronics and Applications, EPE 2016 ECCE Europe, IEEE, 18th European Conference on Power Electronics and Applications, EPE 2016 ECCE Europe, Karlsruhe, Germany, 5/09/16. https://doi.org/10.1109/EPE.2016.7695607

Virtual inertia with PV inverters using DC-link capacitors. / Waffenschmidt, Eberhard; Hui, Ron S.Y.
2016 18th European Conference on Power Electronics and Applications, EPE 2016 ECCE Europe. IEEE, 2016. 7695607 (2016 18th European Conference on Power Electronics and Applications, EPE 2016 ECCE Europe).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

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AU - Waffenschmidt, Eberhard

AU - Hui, Ron S.Y.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2016/10/25

Y1 - 2016/10/25

N2 - Soon, virtual inertia for grid control must be covered by photovoltaic inverters. It is suggested to use DC link capacitors for this task. This requires 5 W, 50 J and a capacitor size of about 200 cm3 per installed kW, corresponding to the size of single phase DC link capacitors. It is shown that the additional power ripple (and thus current ripple) is in the order of 0.1% and the voltage ripple of the intermediate voltage will typically remain between +/-3.6%. The related control can be easily extended by adding a voltage signal to the control voltage, which is proportional to the frequency deviation. Then, the existing controller inherently sets the required additional power fluctuation required for the virtual inertia function. © 2016 IEEE and EPE Association.

AB - Soon, virtual inertia for grid control must be covered by photovoltaic inverters. It is suggested to use DC link capacitors for this task. This requires 5 W, 50 J and a capacitor size of about 200 cm3 per installed kW, corresponding to the size of single phase DC link capacitors. It is shown that the additional power ripple (and thus current ripple) is in the order of 0.1% and the voltage ripple of the intermediate voltage will typically remain between +/-3.6%. The related control can be easily extended by adding a voltage signal to the control voltage, which is proportional to the frequency deviation. Then, the existing controller inherently sets the required additional power fluctuation required for the virtual inertia function. © 2016 IEEE and EPE Association.

KW - Control methods for electrical systems

KW - Distribution of electrical energy

KW - Photovoltaic

KW - Renewable energy systems

KW - Smart grids

KW - Smart microgrids

KW - Transmission of electrical energy

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Y2 - 5 September 2016 through 9 September 2016

ER -

Virtual inertia with PV inverters using DC-link capacitors

Abstract

Publication series

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Bibliographical note

UN SDGs

Research Keywords

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