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配电变压器状态评价权重系数改进方法的研究
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Abstract:
随着经济社会的不断发展，社会各方面对于电力的需求逐渐扩大，这就要求电力系统需要更加的安全可靠。本文对配电变压器状态评价所涉及到的相关理论知识进行了深一步的研究，引入了模糊综合评判方法，分析了确定权重系数的一般算法和改进算法。通过实例计算了两种算法下的权重系数，得出在配电变压器状态评价中计算状态量权重系数应采用改进的基于粗糙集理论的权重系数确定方法。
With the continuous development of the economy and society, the demand for electricity in all as-pects of society is gradually expanding, which requires the power system to be more secure and re-liable. In this paper, the related theoretical knowledge related to the state evaluation of distribution transformers is deeply studied. The fuzzy comprehensive evaluation method is introduced, and the general algorithm and improved algorithm for determining the weight coefficients are analyzed. The weight coefficients of the two algorithms are calculated by an example. It is concluded that the calculation of the state quantity weight coefficient in the distribution transformer state evaluation should be improved based on the rough set theory based weight coefficient determination method.
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