FIELD: pipeline engineering.
SUBSTANCE: method comprises changing flow rate through the main pipeline by frequency control of the load on the electric motors of the gas pumping units. The gas pumping units are powered by electric generators of the additional power gas-turbine plants. When the gas pumping units are set in operation and when the gas flow rate through the main gas pipeline changes, the electric motors of the gas pumping units are controlled by changing the speed of rotation of the electric generators of the additional power gas-turbine plants. The combustion chambers receive fuel gas from the main gas pipeline. When the gas flow rate through the main gas pipeline decreases pronouncedly, the electric motors of several gas pumping units stop, and excess power produced by the electric generators of operating additional power gas-turbine plants is supplied to the external high-voltage circuit.
EFFECT: reduced cost and enhanced reliability.
2 dwg
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|
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