Reactive Power Control in Cogeneration Units

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F15%3A86096469" target="_blank" >RIV/61989100:27240/15:86096469 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Reactive Power Control in Cogeneration Units

Original language description

This paper will be dealing with the issues encountered during connection of small power plants to the distribution grid and control of their reactive power. The small power plants considered will comprise cogeneration units fitted with combustion engines. The data obtained for assessment purposes was generated by the biogas station with the installed power per cogeneration unit equals 549 kW and 637 kW respectively. The power plant is linked to the outside MV power line rated for 22 kV. This paper shows the values measured with reference to problems associated with reactive power control. The problems with reactive power occur with multiple sources of reactive power in immediate vicinity (separated by low impedance only). This issue is most often seen when connecting a cogeneration unit to the distribution grid with the compensation system already integrated. Cogeneration units are provided with their own reactive power control, a larger source would have a synchronous generator: That is the source of reactive power, when its performance is increased by excitation. Great problems occurs once this source is connected to the grid with the initial compensation system installed. Each of these sources has its own reactive power control with various sensitivity settings. Their operations reveals conflicts between individual compensating sources. This problem is encountered at majority of small power plants installed in this way.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20201 - Electrical and electronic engineering

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings Of The 8th International Scientific Symposium On Electrical Power Engineering (Elektroenergetika 2015)

ISBN

978-80-553-2187-5

ISSN

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e-ISSN

neuvedeno

Number of pages

4

Pages from-to

508-511

Publisher name

TECHNICAL UNIV KOSICE, FAC ELECTRICAL ENGRG &amp;amp; INFORMATICS

Place of publication

Košice

Event location

Stara Lesna

Event date

Sep 16, 2015

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

000361561700125