Short term load forecasting-based on-load capacity regulating method for distribution transformer

Abstract

The invention provides a short term load forecasting-based on-load capacity regulating method for a distribution transformer; the distribution transformer is a self-adaption load-type distribution transformer or an on-load capacity regulating distribution transformer. The method comprises the following steps: performing real-time monitoring on a load condition and performing record keeping; performing short term load forecasting, and further generating a state level; determining the on-load capacity regulating strategy of the distribution transformer and performing related operations. According to the short term load forecasting-based on-load capacity regulating method for the distribution transformer, provided by the invention, on the basis of the self-adaption short term load forecasting, the short term load forecasting of a distribution room is considered during the on-load capacity regulating process of the distribution transformer, so that the on-load capacity regulating control of the distribution transformer is optimized, frequent capacity regulating caused by load fluctuation of the distribution room is reduced, the cost performance of a capacity regulating switch is improved, the service life of the capacity regulating switch is prolonged, and the shock to a distribution network is reduced.

Description

technical field [0001] The invention belongs to the technical field of power systems, and in particular relates to a method for on-load capacity regulation of distribution transformers based on short-term load forecasting. Background technique [0002] Distribution transformers (adaptive load distribution transformers or on-load capacity regulation distribution transformers) have the function of on-load capacity regulation, and can work in two operating modes of large rated capacity and small rated capacity, which are more suitable for the annual average load rate. Less than 25%, and regional applications with seasonal or cyclical changes in load, the energy-saving effect is remarkable; these areas are mainly rural or urban commercial areas. At present, load forecasting results are not considered in the on-load capacity regulation control method of distribution transformers, and capacity regulation is only performed based on real-time monitoring loads. Due to large fluctuati...

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Problems solved by technology

[0004] At present, the existing distribution transformer on-load capacity regulation control method does not consider the load prediction results, and only performs capacity regulation based on real-time monitoring load. Due to the large fluctuations in the distribution station area, the on-load capacity regulation switch operates frequently, which increases the load. The impact on the distribution network reduces the service life of the on-load capacity regulating switch, which is not conducive to the safe and economical operation of the distribution transformer

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