A Study on Interconnecting to the Power Grid of New Energy Using the Natural Gas Pressure

  • HyoungTae Kim
  • Hyunseok You
  • Kyoung-Shik Choi
  • Sangwook HanEmail author
Original Article


When supplying natural gas, KOGAS intends to utilize the new energy by installing a system that runs the generator using the energy generated when the high-pressure natural gas is reduced to low pressure, that is, TEG. In the past, the energy generated by decompressing natural gas in the supply management station was thrown into the air, but by using this to generate electricity, high-quality new energy that does not emit greenhouse gases and consumes fuel is obtained. This paper examines the characteristics of TEG power generation, examines the TEG pilot project and demonstration project conducted by Korea Gas Corporation, and discusses the voltage control scheme and grid interconnection.


Turbo expander generator High-pressure natural gas Power grid New energy Voltage control 



This study was funded by Korea Institute of Energy Technology Evaluation and Planning (Grant number 20193510100040).


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Copyright information

© The Korean Institute of Electrical Engineers 2019

Authors and Affiliations

  1. 1.Department of Electrical Information ControlDong Seoul UniversitySeongnamKorea
  2. 2.Department of Innovation LaboratoryKOGAS Research InstituteAnsanKorea

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