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Fuzzy systems application to electric short-term load forecasting. I. Problem formulation

机译:模糊系统在电力短期负荷预测中的应用。一,问题表述

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Economic secure operation of electric power systems requires good prediction for the electric load twenty four hours ahead. This paper presents the application of fuzzy system to electric short-term load forecasting. Two models are used for modeling the electric load. While in the first model, the load power depends only on the hour on question, the second model is a function of the temperature as well as the hour in question. The problem is formulated as a linear fuzzy regression problem. where the linear programming is used to estimate the middle and spread of each load parameter. A triangular membership function is used, which is symmetrical around the middle. Having identified the fuzzy parameters of the load model, the load can easily be predicted for the next 24 hours. Results for a practical system in operation are offered in the text, for different days of the week, working days and weekend day, where the load power is assumed to be crisp in one test and fuzzy in another test.
机译:电力系统的经济安全运行需要对二十四小时的电力负荷进行良好的预测。本文介绍了模糊系统在电力短期负荷预测中的应用。使用两个模型对电负载进行建模。在第一个模型中,负载功率仅取决于所讨论的小时,而第二个模型是温度以及所讨论的小时的函数。该问题被表述为线性模糊回归问题。其中使用线性规划来估计每个负载参数的中间值和扩展值。使用三角隶属度函数,该函数在中间对称。确定了负荷模型的模糊参数后,可以轻松预测接下来的24小时内的负荷。文中提供了针对一周中不同日期,工作日和周末的运行中实用系统的结果,其中假设负载功率在一项测试中是清晰的,而在另一项测试中是模糊的。

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