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Line flow calculation plays a critically important role to guarantee the stable operation of power system in economic dispatch (ED) problems with line constraints. This paper presents a line flow granular computing approach for power flow calculation to assist the investigation on ED with line constraints, where the hierarchy method is adopted to divide the power network into multiple layers to reduce...
This paper studies the problem of evaluation index system and weight of index system. Firstly, we define energy efficiency of distribution transformer and discuss the influence of energy efficiency of distribution transformers on distribution network to make the index more general. Secondly, we establish an index system of distribution network for economic evaluation. Thirdly, an improved AHP (Analytic...
This paper analyzes the situation and likely problems of the current risk management through affirming the current risk, combined with analysis of final financing accounts, and then puts forward a systematic and normative differentiating model for the efficiency of risk management to points out the amount which is the most effective to invest in risk management of information security. Then the paper...
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