Driving Ahead for Secure Gas Compressor Operation

February 2017, Vol. 244, No. 2

By Thomas Besselmann, Senior Scientist, ABB Corporate Research

Electrically driven gas compressors have several advantages over compressors driven by gas turbines: The drive torque can be varied much quicker; the variable speed drive (VSD) system can be operated with high efficiency in a much broader operation range; there are no local greenhouse gas emissions. In situations such as subsea installations, a VSD system may be the only option to power gas compressors. For these reasons, a number of large gas-processing plants employ electrically driven gas compressors. Gas compression is energy-intensive, which means that high-power solutions for the VSD are required. A typical solution…

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