عنوان مقاله
برنامه ریزی انتقال با توجه به قابلیت اعتماد و عملکرد اقتصادی در محیط مقررات زدایی شده
فهرست مطالب
مقدمه
تحلیل های هزینه و منفعت
مدل ریاضی برای برنامه ریزی شبکه انتقال
کلیات الگوریتم های ژنتیکی (GA)
مطالعه موردی
نتیجه گیری
بخشی از مقاله
تحلیل های هزینه و منفعت
امروزه، برنامه ریزی انتقال نباید از محیط بازار برق جدا شود. کاربرانی که برق را خریداری می کنند، یک مشخصه مهم به نام قابلیت اعتماد برق رسانی را نیز خریداری می کنند. آنها حق خواستن کمپنزاسیون (جبران خسارت) را دارند زمانی که از زیان اقتصادی ناشی از قابلیت اعتماد برقرسانی آسیب می بینند. هزینه های قطع برق در بخش تقاضا، یک انعکاس اقتصادی است که قابلیت اعتماد برق رسانی را نشان می دهد.
کلمات کلیدی:
Transmission Planning Considering Reliability and Economic Performances in A Deregulated Environment Zhixin Gao1 , Qingke Tan1 , Hongkun Chen1 , Yaoqi Qian2 1 School of Electrical Engineering, Wuhan University, China 2 School of Electrical Engineering, Wuhan University of Technology, China Abstract- The optimal design of transmission system expansion planning is an important part of the overall planning task of electric power system under competitive electricity market environments. Taking the cost-benefit analysis theory in economics as a basis, this paper analyzes the economy and reliability of the power transmission network at the beginning. Then, a mathematical model Cost/Benefit is proposed, and it is calculated by genetic algorithms which is introduced in section Ⅳ. Finally, it is tested and analyzed by Gaver-6-node system. Furthermore, the results indicate the feasibility and effectiveness of the method proposed in the paper. Index terms- Transmission expansion planning; cost-benefit analysis; reliability; genetic algorithms (GAs) I. INTRODUCTION There has been a world-wide trend towards restructuring and deregulation of the power industry over the last decade. The competition in the wholesale generation market and the retail market together with the open access to the transmission network can bring many benefits to the consumers, such as lower electricity prices and better services. However, this competition also brings many new technical issues and challenges to the planning of restructured power systems. Power market environment access has moved the industry from conventional monopolistic electricity markets to competitive markets. In a competitive market, the price of the delivered energy and the quality of electrical energy including voltage quality and reliability of service are the main factors for business success. A key factor in today’s competitive environment is an orientation toward customer’s needs and willingness to pay for quality. Traditionally, the most widely practiced method for expansion planning is the least-cost planning (also known as integrated resource planning or integrated demand-supply planning). It minimizes the present worth of investment cost while meeting the design criteria. As a result of the deregulation, new challenges have emerged in power system planning with regard to market constraints and increased uncertainties. There have been some new planning methods trying to meet such challenges. Most of these new methods try to minimize the total cost while meeting the system reliability requirement. This study knocks a new door carefully with a methodology for deciding cost-benefit ratio for an optimal transmission system expansion planning. II. COST-BENEFIT ANALYSES Nowadays, the transmission planning should not be divorced from the environment of the power market [1]. Users who purchase the electricity also purchase an important attribute –reliability of the power supply. They have the right to seek compensation when they suffered economic loss due to the power supply reliability. Therefore, in the power market it is not difficult to understand that the total cost of electricity supply should not be only consisted by the cost of the investment and operating costs in the expansion of the power grid constructions, but also the losses of customers due to insufficient supply or the interruption caused by power shortage, that is, the power outage cost on the demand side. The outage cost on demand side is an economic reflection directly illuminates the electricity supply reliability. Obviously, high reliability and low cost is a contradiction, in this paper, we will use reliability cost-benefit analysis method to coordinate them. This method can balance the reliability and economic performances of the power grids in order to determine which kind of investment option can obtain the best total benefit.
