عنوان مقاله
پژوهش راجع به تاثیرات تولید توزیع شده بر هزینه توسعه انتقال برق : یک مطالعه موردی استرالیایی
فهرست مطالب
چکیده
مقدمه
مرور تحقیق وابسته
مدل شبیه سازی توسعه شبکه انتقال
نتایج مطالعه موردی
نتیجه گیری
بخشی از مقاله
ارزیابی ایمنی
ایمنی شبکه نیرو به توانایی تحمل سطح خاصی از نویز و اغتشاش ها بدون از دست دادن ثبات و پایداری اشاره می کند. از دست دادن ثبات و پایداری موجب خاموشی و در نتیجه تحمیل خسارات و آسیب های اقتصادی و اجتماعی شدید می شود. در این مطالعه از دو شاخص به نام های شاخص پایداری و ثبات ولتاژ و ضریب ثبات و پایداری گذرا برای اندازه گیری ایمنی سیستم استفاده شده است.
کلمات کلیدی:
Investigating the Impacts of Distributed Generation on Transmission Expansion Cost: An Australian Case Study Junhua Zhao and John Foster Energy Economics and Management Group School of Economics University of Queensland Abstract Distributed generation (DG) is rapidly increasing its penetration level in Australia, and is expected to play a more important role in the power industry. An important benefit of DG is its ability to defer transmission investments. In this paper, a simulation model is implemented to conduct quantitative analysis on the effect of DG on transmission investment deferral. The transmission expansion model is formulated as a multi-objective optimization problem with comprehensive technical constraints, such as AC power flow and system security. The model is then applied to study the Queensland electricity market in Australia. Simulation results show that, DG does show the ability to reduce transmission investments. This ability however is greatly influenced by a number of factors, such as the locations of DG, the network topology, and the power system technical constraints. I. INTRODUCTION In its beginning period, the electricity industry consisted of generation units that are deployed dispersed and have no interconnection. The situation soon evolved, and by 1930s centralized operation became the dominant feature of the industry, because of the significant economies of scale and technical advantages. Nowadays, the power industry is still characterized by large-scale centralized generation and an extensive transmission and distribution infrastructure. However, this centralized power generation model has been challenged in recent years. The large-scale base load generators are frequently criticized by their environmental damages. Moreover, along with the continuously increasing sizes and complexities, the security of power transmission/distribution networks is also questioned by critics. Taking into account the concerns above, distributed generation (DG) technologies are expected to play a more important role in the electricity industry. Distributed generation can be defined as the generation units that are connected at the distribution network level and close to end-users [Ackermann, 2001]. Based on this definition, DG is not necessarily green power generation. However, the renewable DG technologies (wind turbine, solar photovoltaic, biomass, etc) are more preferred options due to their environmental benefits. Another important benefit claimed by the proponents of DG is that it potentially can defer investments in the transmission/distribution infrastructure. However, only a few studies [Borenstein, 2008; Kahn, 2008; Beach, 2008] have been conducted to investigate how significant the effect of T&D investment deferral can be. Moreover, existing studies usually ignore system technical constraints, which essentially have great impacts on their study results.
