Pressure fluctuations in natural gas networks caused by gas-electric coupling

Michael Chertkov, Michael Fisher, Scott Backhaus, Russell Bent, Sidhant Misra

Результат исследований: Глава в книге, отчете, сборнике статейМатериалы для конференциирецензирование

22 Цитирования (Scopus)

Аннотация

The development of hydraulic fracturing technology has dramatically increased the supply and lowered the cost of natural gas in the United States, driving an expansion of natural gas-fired generation capacity in several electrical interconnections. Gas-fired generators have the capability to ramp quickly and are often utilized by grid operators to balance intermittency caused by wind generation. The time-varying output of these generators results in time-varying natural gas consumption rates that impact the pressure and line-pack of the gas network. As gas system operators assume nearly constant gas consumption when estimating pipeline transfer capacity and for planning operations, such fluctuations are a source of risk to their system. Here, we develop a new method to assess this risk. We consider a model of gas networks with consumption modeled through two components: forecasted consumption and small spatio-temporarily varying consumption due to the gas-fired generators being used to balance wind. While the forecasted consumption is globally balanced over longer time scales, the fluctuating consumption causes pressure fluctuations in the gas system to grow diffusively in time with a diffusion rate sensitive to the steady but spatially-inhomogeneous forecasted distribution of mass flow. To motivate our approach, we analyze the effect of fluctuating gas consumption on a model of the Transco gas pipeline that extends from the Gulf of Mexico to the Northeast of the United States.

Язык оригиналаАнглийский
Название основной публикацииProceedings of the 48th Annual Hawaii International Conference on System Sciences, HICSS 2015
РедакторыRalph H. Sprague, Tung X. Bui
ИздательIEEE Computer Society
Страницы2738-2747
Число страниц10
ISBN (электронное издание)9781479973675
DOI
СостояниеОпубликовано - 26 мар. 2015
Опубликовано для внешнего пользованияДа
Событие48th Annual Hawaii International Conference on System Sciences, HICSS 2015 - Kauai, Соединенные Штаты Америки
Продолжительность: 5 янв. 20158 янв. 2015

Серия публикаций

НазваниеProceedings of the Annual Hawaii International Conference on System Sciences
Том2015-March
ISSN (печатное издание)1530-1605

Конференция

Конференция48th Annual Hawaii International Conference on System Sciences, HICSS 2015
Страна/TерриторияСоединенные Штаты Америки
ГородKauai
Период5/01/158/01/15

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