Method and device for determining transformer capacity

Abstract

The invention discloses a transformer capacity determination method and device. One specific embodiment of the method comprises the steps of: obtaining electricity load data of each commercial user; determining the transformer power distribution capacity index of each commercial user; determining a typical electricity load curve in a preset time interval of each commercial user, according to the proportion of the maximum value of the typical electricity load curve to the transformer power distribution capacity index, carrying out hour-by-hour load conversion on the typical electricity load curve, and generating a first characteristic value curve set; carrying out peak load shifting merging on the first characteristic value curve set, and generating a second characteristic value curve; and according to the maximum value of the second characteristic value curve, determining a total commercial transformer power distribution capacity. According to the embodiment, the capacity optimization of the power distribution transformer is realized, the capacity of the transformer is reduced, and resources are saved.

Description

technical field [0001] The present application relates to the technical field of building power supply and distribution, in particular to the technical field of distribution transformers, especially to the technical field of transformer capacity configuration. Background technique [0002] With the progress and development of society, the demand for electricity of users in various industries is increasing, and it has become an important issue to reasonably select the capacity of distribution transformers according to the needs of users. If the capacity of the distribution transformer is too large, the initial cost of transformer implementation will be increased, and the actual load rate will be low, resulting in waste of resources; if the capacity of the distribution transformer is too small, the actual load will be too large, or even overloaded, which is difficult Meet the user's electricity demand and affect the load stability. [0003] The user's power consumption is at ...

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Problems solved by technology

[0004] However, the existing transformer distribution capacity indicators rely on empirical values, and in order to meet the needs of users, the designed capacity of the transformer is usually much larger than the actual power consumption in operation; at the same time, the value of the distribution capacity indicator is single, which cannot If users select different index values, it is difficult to increase the operating load rate, and the operation is uneconomical

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