Английская Википедия:Al-Fadhili back-to-back HVDC converter station

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Шаблон:Infobox power transmission line The Al-Fadhili back-to-back HVDC station is a back-to-back HVDC connection between Saudi Arabia, whose grid operates at 60 Hz, and its neighbouring Gulf states which have 50 Hz grids.[1] The station is located in Saudi Arabia, approximately 100 km north-west of Dammam, but was built for and owned by Gulf Cooperation Council Interconnection Authority (GCCIA). The converter station was built by Areva T&D, now Alstom Grid, between 2006 and 2009.

GCCIA is constructing a 400 kV, 50 Hz AC transmission line to interconnect Kuwait, Bahrain and Qatar through Saudi Arabia. Later phases will also connect Oman and United Arab Emirates. The Al-Fadhili HVDC system allows power to be exchanged between the 50 Hz GCCIA system and Saudi Electricity Company system.

The converter station consists three identical poles, each with a nominal power transmission rating of 600 MW and an overload rating of 660 MW. Each pole has nominal DC voltage and current ratings of 222 kV, 2776 A.[1]

Unlike most HVDC systems, which are designed to be used more or less continuously for transmission of power, the Al-Fadhili system is normally intended to remain in standby mode, only transmitting power between the two systems after a major loss of generation in one system. The converter poles are normally kept blocked but the control systems continuously monitor the frequencies of the two grids and, upon detection of a sudden change of frequency, deblock one or two poles as needed to restore the shortage of power. This allows Spinning reserve to be shared between the two system and as a result the concept is known as Dynamic Reserve Power Sharing (DRPS). With a total power rating of 1800 MW, the Al-Fadhili system was, on completion, the largest HVDC back-to-back system in the world [2] and the first HVDC system in the Middle East.

See also

References

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External links

  1. 1,0 1,1 Barrett, B.T., MacLeod, N.M, Sud, S., Al-Mohiasen, A.I., Al-Nasser, R.S., Planning and design of the Al Fadhili 1800 MW HVDC inter-connector in Saudi Arabia Шаблон:Webarchive, CIGRÉ session, Paris, 2008, paper reference B4-113.
  2. Sadullah, S., Ebrahim, A., Application of a HVDC Link to Promote Stability by Sharing Dynamic Reserve Power after Generation Deficiencies, IEEE Power Systems Conference and Exposition, 2009.