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Distributed generation with voltage control capability in the low voltage network

Sulla, Francesco LU ; Björnstedt, Johan LU and Samuelsson, Olof LU (2010) International Conference on Renewable Energies and Power Quality (ICREPQ'10)
Abstract
Abstract in Undetermined
Small-scale distributed generators connected to
the low voltage network are generally operated with unity
power factor. However, controlling their reactive power
injection would have an impact on the voltage at their
connection point, if the network is sufficiently weak and
inductive. The purpose of this paper is to investigate how a
small-scale distributed generator connected to a low voltage
network through a power electronic converter can be controlled
to improve the voltage quality at its connection point.
The possibility to control the voltage at a point in the low
voltage network by reactive power injection is limited by two
factors, the small rating of the... (More)
Abstract in Undetermined
Small-scale distributed generators connected to
the low voltage network are generally operated with unity
power factor. However, controlling their reactive power
injection would have an impact on the voltage at their
connection point, if the network is sufficiently weak and
inductive. The purpose of this paper is to investigate how a
small-scale distributed generator connected to a low voltage
network through a power electronic converter can be controlled
to improve the voltage quality at its connection point.
The possibility to control the voltage at a point in the low
voltage network by reactive power injection is limited by two
factors, the small rating of the distributed generator compared
to the short-circuit power at its connection point and the
resistive nature of the low voltage cables. Here, a scheme for
inductively decoupling the distributed generator connection
point from the network is proposed and evaluated. For this
purpose, an inductance is placed between the network and the
generator, allowing voltage regulation by reactive power
injection.
Simulation results and lab measurements show that the
proposed scheme improves the voltage quality at the
microturbine connection point. (Less)
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Contribution to conference
publication status
published
subject
conference name
International Conference on Renewable Energies and Power Quality (ICREPQ'10)
conference location
Granada, Spain
conference dates
2010-03-23 - 2010-03-25
external identifiers
  • scopus:84897707462
language
English
LU publication?
yes
id
43df13b4-65e3-4831-ba0c-9d81e907ade3 (old id 2535664)
alternative location
http://www.icrepq.com/icrepq'10/288-Sulla.pdf
date added to LUP
2016-04-04 14:36:49
date last changed
2025-04-04 14:00:08
@misc{43df13b4-65e3-4831-ba0c-9d81e907ade3,
  abstract     = {{Abstract in Undetermined<br/>Small-scale distributed generators connected to<br/>the low voltage network are generally operated with unity<br/>power factor. However, controlling their reactive power<br/>injection would have an impact on the voltage at their<br/>connection point, if the network is sufficiently weak and<br/>inductive. The purpose of this paper is to investigate how a<br/>small-scale distributed generator connected to a low voltage<br/>network through a power electronic converter can be controlled<br/>to improve the voltage quality at its connection point.<br/>The possibility to control the voltage at a point in the low<br/>voltage network by reactive power injection is limited by two<br/>factors, the small rating of the distributed generator compared<br/>to the short-circuit power at its connection point and the<br/>resistive nature of the low voltage cables. Here, a scheme for<br/>inductively decoupling the distributed generator connection<br/>point from the network is proposed and evaluated. For this<br/>purpose, an inductance is placed between the network and the<br/>generator, allowing voltage regulation by reactive power<br/>injection.<br/>Simulation results and lab measurements show that the<br/>proposed scheme improves the voltage quality at the<br/>microturbine connection point.}},
  author       = {{Sulla, Francesco and Björnstedt, Johan and Samuelsson, Olof}},
  language     = {{eng}},
  title        = {{Distributed generation with voltage control capability in the low voltage network}},
  url          = {{http://www.icrepq.com/icrepq'10/288-Sulla.pdf}},
  year         = {{2010}},
}