Protection requirements for a large scale wind park

Protection requirements for a large scale wind park

Abstract

In the past wind power plants typically had a small power rating when compared to the strength of the connected electrical network and the behavior of the wind mills during faults in the network was considered non critical and wind power plants were simply pulled out of the system.

Hence protection requirement of a wind mill was just restricted to simple current and voltage based measurement.

This paper identifies the areas of concern where proper protection has to be introduced apart from the basic wind park requirements.

Owing to the increase in demand for renewable energy large wind parks are constructed in deep seas. Such wind parks are connected to the electrical grid on the land by comprehensive underground cables.

The underground cables are a potential for a fault occurrence. The next area of concern would be in the multiple mechanically switched capacitor banks or FACTS used for dynamic reactive compensation. The voltage flicker produced by large wind parks owing to the varying speed of the wind mills on the interconnected grid has a deteriorating effect on the other connected equipment and also on the grid as well.

To maintain voltage stability as per NERC guidelines and to mitigate voltage flickers, dynamic reactive compensation can be provided with multiple mechanically switched capacitor banks or FACTS.

Therefore the paper will discuss in detail the protection possibilities for the underground cables and the reactors for large wind parks located offshore.

This paper will focus on the following:

  1. Introduction and analysis of the various electrical fault possibilities in an offshore wind park.
  2. Detection and prevention against Ferro resonance due to inductive reactance introduced by wind generators, reactors and capacitive reactance introduced by the long running cables and capacitor banks.
  3. Automatic fault collection and analysis, and its benefits.
Title:Protection requirements for a large scale wind park - Shyam Musunuri, Siemens Energy
Format:PDF
Size:365KB
Pages:14
Download:Right here | Get Download Updates | Get Technical articles

Protection requirements for a large scale wind park

Recommended EE articles



Monthly Download Updates

Get EEP's updates without having to keep checking up on the portal to see if there is anything new. New FREE technical articles, electrical books, guides, software and other exclusive content you will receive via email. Pretty simple!

Subscribe here:



Page edited by E.C. (Google).



Leave a Comment

Tell us what you're thinking... we care about your opinion!
and oh, not to forget - if you want a picture to show with your comment, go get a free Gravatar!


1 + = six

FOLLOW EEP!

Subscribe to Weekly Download Updates: (free electrical software, spreadsheets and EE guides)

EEP's Android Application
Electrical Engineering Daily Dose
Daily dose of knowledge and news from
Electrical Engineering World

Advertisement