Publication detail

SURVEY OF NETWORK IMPEDANCE IN THE FREQUENCY RANGE 2-9 KHZ IN PUBLIC LOW VOLTAGE NETWORKS IN AT/CH/CZ/GE

STIEGLER, R. MEYER, J. SCHORI, S. DRÁPELA, J. HÖCKEL, M. SCHEIDA, K. HANŽLÍK, T.

Original Title

SURVEY OF NETWORK IMPEDANCE IN THE FREQUENCY RANGE 2-9 KHZ IN PUBLIC LOW VOLTAGE NETWORKS IN AT/CH/CZ/GE

Type

article in a collection out of WoS and Scopus

Language

English

Original Abstract

Setting realistic emission limits for distorting customer installations is a crucial requirement for a reliable and disturbance-free operation of public distribution networks. Therefore only an adequate share of the total allowable voltage distortion (compatibility level) has to be allocated to each customer installation. This allowable contribution of a single customer installation is usually small and difficult to assess. Hence, nowadays most standards and guidelines translate the allocated voltage distortion in a respective current distortion by using the network impedance at the considered frequency. As frequency-dependent network impedance is usually not known during the planning process, assumptions are required, which have to be realistic and not too conservative. This applies in particular to frequencies above 2 kHz, where the usually used extrapolation based on short circuit impedance can be very conservative due to the increasing impact of connected customer equipment on the network impedance. Based on a comprehensive measurement campaign in four different countries this paper identifies typical ranges of the frequency-dependent network impedance in the frequency range 2-9 kHz. It analyses the impact of short circuit power and proposes a simplified impedance estimation, which can be used to calculate realistic current emission limits in the planning stage.

Keywords

Network impedance, Low-voltage distribution system, Frequency range 2-9 kHz,

Authors

STIEGLER, R.; MEYER, J.; SCHORI, S.; DRÁPELA, J.; HÖCKEL, M.; SCHEIDA, K.; HANŽLÍK, T.

Released

3. 6. 2019

Publisher

IET

Location

Madrid

ISBN

978-2-9602415-0-1

Book

CIRED - Open Access Proceedings Journal

Edition

2019

Edition number

1.

ISBN

2032-9644

Periodical

CIRED, International Conference and Exhibition on Electricity Distribution

Year of study

2019

Number

1

State

French Republic

Pages from

1

Pages to

5

Pages count

5

BibTex

@inproceedings{BUT156639,
  author="Robert {STIEGLER} and Jan {MEYER} and Stefan {SCHORI} and Jiří {Drápela} and Michael {HÖCKEL} and Karl {SCHEIDA} and Tomáš {Hanžlík}",
  title="SURVEY OF NETWORK IMPEDANCE IN THE FREQUENCY RANGE 2-9 KHZ IN PUBLIC LOW VOLTAGE NETWORKS IN AT/CH/CZ/GE",
  booktitle="CIRED - Open Access Proceedings Journal",
  year="2019",
  series="2019",
  journal="CIRED, International Conference and Exhibition on Electricity Distribution",
  volume="2019",
  number="1",
  pages="1--5",
  publisher="IET",
  address="Madrid",
  doi="10.34890/628",
  isbn="978-2-9602415-0-1",
  issn="2032-9644"
}