ارایه یک مدل ریاضی جهت بهینه‏ سازی عملیات شبکه انتقال گاز

نویسندگان

دانشگاه شمال

چکیده

طراحی وساختن سیستمها و تجهیزات فنی موجود در پالایشگاه‏ها،خطوط لوله گاز و نفت و ایستگاه‏های عملیاتی تقویت فشار، از منظر اقتصادی همواره با صرف هزینه‏ های هنگفتی همراه می‏باشد. از این جهت مدیران در سطوح مختلف خواهان ارایه روشهایی برای کنترل هزینه‏ ها، چه در مرحله ساخت و چه در مرحله بهره‏ برداری از مراکز تولید و توزیع هستند. انتخاب دستگاه‏های عملیاتی در ایستگاه‏های عملیاتی تقویت فشار، عموما توسط بهره برداران بدون لحاظ کردن انواع هزینه‏ ها انجام می‏شود. در این پژوهش یک مدل برنامه ‏ریزی غیر خطی صحیح آمیخته در حالت قطعی، برای کمینه ‏سازی هزینه‏ های عملیاتی ایستگاه‏های تقویت فشار در شبکه توزیع اصلی گاز رسانی ارایه می‏گردد. هدف عبارتست از انتخاب بهینه دستگاه‏های عملیاتی که همان توربو کمپرسورها می‏باشند، بگونه‏ ای که هزینه ‏های عملیاتی به کمترین مقدار خود برسند و در عین حال تقاضای مشتری برآورده گردد. هزینه ‏های عملیاتی شامل هزینه ‏های سوخت مصرفی، تعمیرات، جانبی (هزینه تجهیزات فرعی برای در سرویس ماندن دستگاه‏ها) و هزینه جریمه ‏ای می‏باشد. با در نظر گرفتن منطقه 9 عملیات انتقال گاز کشور به عنوان محل انجام مطالعه موردی نتیجه کلی حاکی از آن است که مدل در مقایسه با انتخاب موردی دو تن از بهره برداران خبره توانسته در مجموع هزینه کلی را به میزان تقریبی 14 درصد کاهش دهد.

کلیدواژه‌ها


عنوان مقاله [English]

A Mathematical Model to Optimize the Operation of a Gas Distribution Network

نویسندگان [English]

  • Seyed Hossein Ebrahimi
  • Ahmad J. Afshari
چکیده [English]

Designing and manufacturing of technical systems and devices in refineries, oil and gas pipelines and gas booster stations is associated with huge costs from an economic point of view. Hence, managers at industry section, especially oil and gas industry, seek ways to control the production and distribution costs. Generally speaking, at distribution section, selection of operational appliances by operators in gas booster stations to be run, would be done without considering various kinds of cost. In this research, a deterministic mixed integer program is presented to minimize the operational costs in gas booster stations of a gas distribution network. The objective is to select operational appliances, turbo-compressors here, such that minimize the operational costs while customer demands are met. Operational costs are include consumed fuel costs (fuel exploded in gas turbine combustion chambers to yield the torque power to run the gas compressor), maintenance and repair costs, startup costs (generally the electrical costs used for running the electro air compressors which provide the compressed air), and penalty costs. Considering the gas transmission operating region no.9 as a case study, the result is that the model could minimize the total costs about 14% in comparison with the selection of two chief operators.

کلیدواژه‌ها [English]

  • Operational appliances
  • gas booster station
  • dispatching center
  • mixed integer nonlinear programming

 

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