Innovative Turbine Expanders with Asynchronous Generators for the Use of Throttled Gas Energy

The spending energy for gas transportation reaches 10% of the produced gas. After the reaching of the consumer, this pressure must be reduced to a certain. The created energy of the gas in gas pipelines in compressor shop can be extracted in the mechanical energy form and delivered to the turbo-expander shaft. Using of new turbo expanders with asynchronous generators for the use of throttle gas energy will save energy costs for gas transportation in main gas pipelines. For reliable operation of the asynchronous generator systems and devices are needed to stabilize the voltage. The principle of the new device for adjusting and stabilizing the voltage of an autonomous asynchronous generator is based on the selective inclusion of capacitors with three-phase electronic keys as a function of the feedback signal from the output voltage.