نتایج جستجو برای: power transmission reliability
تعداد نتایج: 835852 فیلتر نتایج به سال:
Large tropical cyclones cause severe damage to major cities along the United States Gulf Coast annually. A diverse collection of engineering and statistical models are currently used to estimate the geographical distribution of power outage probabilities stemming from these hurricanes to aid in storm preparedness and recovery efforts. Graph theoretic studies of power networks have separately at...
Restructuring of electric industry has seriously affected the operation and planning process of electric power systems. Due to the unbundling process and new market requirements, a set of new challenges and goals have been introduced in the field of transmission planning. Moreover, the uncertainty level of input data to planning process has been increased significantly. In this paper first, the...
Solid state power electronic devices or Flexible AC Transmission Systems technologies has brought an scope for electric utilities to operate their bulk power flow network close to their thermal limits while maintaining and/or improving network security or reliability. High-power electronic devices can provide unprecedented control over electricity flow in transmission networks. These devices re...
Designing wireless sensor networks should meet appropriate parameters such as quality of service (QoS) defined by different users. The variable physical conditions of the environment, processing and transmission power limitations and limited communication capabilities are the most important obstacles that influence QoS parameters such as throughput, delay, reliability and network lifetime. The ...
در زندگی امروزی مصرف انرژی الکتریکی به دلیل سهولت انتقال، تولید در میزان گسترده و سهولت تبدیل آن به سایر اشکال انرژی پر رونق تر گردیده است و هم چنین در سالهای اخیر مقدار توانی که بایستی از مکانهای تولید به نواحی اصلی بار انتقال داده شود رشد کاملاً محسوسی را نشان می دهد. به دلیل هزینه های سنگین تجهیزات تولید، انتقال و توزیع و همچنین نیاز به سیستم های برق رسانی مطمین، طرح های بهینه برای قسمتهای مخ...
This paper proposes a method for choosing the best coordinated expansion planning of generation and transmission systems considering an annual outage cost and a probabilistic power system reliability criterion (RLOLEGTS). The objective method minimizes a total cost which are not only an investment budget for constructing new generators and transmission lines but also an annual outage cost. Main...
In bulk electric power transfer capability computations, the transmission reliability margin accounts for uncertainties related to the transmission system conditions, contingencies, and parameter values. We propose a formula which quantifies transmission reliability margin based on transfer capability sensitivities and a probabilistic characterization of the various uncertainties. The formula i...
This paper proposes an algorithm for transmission cost allocation (TCA) in a large power system based on nodal pricing approach using the multi-area scheme. The nodal pricing approach is introduced to allocate the transmission costs by the control of nodal prices in a single area network. As the number of equations is dependent on the number of buses and generators, this method will be very ti...
This paper proposes reliability improvements to the Cluster Based Routing Protocol (CBRP). Estimation of link reliability to facilitate alternate route redundancy together with the use of adaptive power control is introduced. Network performance is improved in terms of packet delivery ratio, average delay and overheads while at the same time operating at lower transmission power.
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