Details
| Original language | English |
|---|---|
| Title of host publication | 41st North American Power Symposium, NAPS 2009 |
| Publication status | Published - 2009 |
| Event | 41st North American Power Symposium, NAPS 2009 - Starkville, United States Duration: 4 Oct 2009 → 6 Oct 2009 |
Publication series
| Name | 41st North American Power Symposium, NAPS 2009 |
|---|
Abstract
Nowadays, local utilizes face new challenges by operating their grids. This is mainly due to the increasing amount of distributed generation in the low and medium voltage level. If the injected power is not consummated locally but has to be transmitted over a long distance, voltages at busbars close to the source will rise which on the one hand is a potential threat to the equipment and on the other hand may lead to illegal system states and outages. Furthermore, measurement is sparsely spread in distribution grids. Thus, the grid state is not entirely observable and violations may not be detected. So local utilities trying to achieve a highly automated energy supply do not aim at a global governor but the grid has to be controlled locally using small adaptive systems which are able to make decisions autonomously. In this paper a new approach on the exploitation of reactive power reserves of inverter dominated distributed sources is introduced. Although X/R ratio differs from the transmission system reactive power offers a constricted but cost-effective possibility to control nodal voltages. So, first, a method to control single nodal voltages by using reactive power reserves of inverters is presented. After that, voltage stability is improved by intelligent agents which are able to work together.
ASJC Scopus subject areas
- Energy(all)
- Energy Engineering and Power Technology
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41st North American Power Symposium, NAPS 2009. 2009. 5484076 (41st North American Power Symposium, NAPS 2009).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Application of adaptive agents in decentralized energymanagement systems for the purpose of voltage stability in distribution grids
AU - Wolter, Martin
AU - Brenner, Stefan
AU - Isermann, Timo
AU - Hofmann, Lutz
PY - 2009
Y1 - 2009
N2 - Nowadays, local utilizes face new challenges by operating their grids. This is mainly due to the increasing amount of distributed generation in the low and medium voltage level. If the injected power is not consummated locally but has to be transmitted over a long distance, voltages at busbars close to the source will rise which on the one hand is a potential threat to the equipment and on the other hand may lead to illegal system states and outages. Furthermore, measurement is sparsely spread in distribution grids. Thus, the grid state is not entirely observable and violations may not be detected. So local utilities trying to achieve a highly automated energy supply do not aim at a global governor but the grid has to be controlled locally using small adaptive systems which are able to make decisions autonomously. In this paper a new approach on the exploitation of reactive power reserves of inverter dominated distributed sources is introduced. Although X/R ratio differs from the transmission system reactive power offers a constricted but cost-effective possibility to control nodal voltages. So, first, a method to control single nodal voltages by using reactive power reserves of inverters is presented. After that, voltage stability is improved by intelligent agents which are able to work together.
AB - Nowadays, local utilizes face new challenges by operating their grids. This is mainly due to the increasing amount of distributed generation in the low and medium voltage level. If the injected power is not consummated locally but has to be transmitted over a long distance, voltages at busbars close to the source will rise which on the one hand is a potential threat to the equipment and on the other hand may lead to illegal system states and outages. Furthermore, measurement is sparsely spread in distribution grids. Thus, the grid state is not entirely observable and violations may not be detected. So local utilities trying to achieve a highly automated energy supply do not aim at a global governor but the grid has to be controlled locally using small adaptive systems which are able to make decisions autonomously. In this paper a new approach on the exploitation of reactive power reserves of inverter dominated distributed sources is introduced. Although X/R ratio differs from the transmission system reactive power offers a constricted but cost-effective possibility to control nodal voltages. So, first, a method to control single nodal voltages by using reactive power reserves of inverters is presented. After that, voltage stability is improved by intelligent agents which are able to work together.
UR - http://www.scopus.com/inward/record.url?scp=77954779208&partnerID=8YFLogxK
U2 - 10.1109/NAPS.2009.5484076
DO - 10.1109/NAPS.2009.5484076
M3 - Conference contribution
AN - SCOPUS:77954779208
SN - 9781424444281
T3 - 41st North American Power Symposium, NAPS 2009
BT - 41st North American Power Symposium, NAPS 2009
T2 - 41st North American Power Symposium, NAPS 2009
Y2 - 4 October 2009 through 6 October 2009
ER -