Low-voltage large-load customized power adjustment and control method and intelligent electricity utilization device

Abstract

The invention discloses a low-voltage, large-load and customized power adjustment and control method. The method includes the following steps that: a rated capacity value is preset in an intelligent electricity utilization device according to electricity utilization load capacity applied by a user; the intelligent electricity utilization device monitors actual electricity utilization load of the user in real time and judges whether the actual electricity utilization load satisfies conditions of alarm protection action startup, if the actual electricity utilization load satisfies the conditions of alarm protection action startup, an alarm protection action is started; the intelligent electricity utilization device judges whether the cumulative number of times of overload alarm protection in a single period achieves a preset numerical value of number of times of locking, if the cumulative number of times of overload alarm protection in a single period achieves the preset numerical value of number of times of locking, the intelligent electricity utilization device locks a switch-off cut-off circuit; and the rated capacity value preset in the intelligent electricity utilization device is increased according to the application of the user for increasing electricity utilization load capacity, and the switch-off cut-off circuit is unlocked, and power transmission work is recovered. The invention also discloses an intelligent electricity utilization device. With the low-voltage large-load customized power adjustment and control method and the intelligent electricity utilization device of the invention adopted, the user can be urged to quickly adjust the electricity utilization load to a safe operation state, timely handle capacity increasing application and report actual electricity utilization load capacity.

Description

Technical field [0001] The invention relates to the field of electric power, and in particular to a low-voltage and large-load customized power control method and an intelligent electric device. Background technique [0002] With the acceleration of my country's economic development, the power industry has become an important infrastructure supporting the development of various fields such as industry and commerce, agriculture, and service industries. my country's modernization process puts forward higher requirements for power development. [0003] In 2011, the smart grid was officially included in the national "Twelfth Five-Year" development plan. The outline of the "Twelfth Five-Year" plan clearly stated: Relying on advanced technologies such as information, control and energy storage, promote the construction of smart grids, and effectively strengthen the construction and transformation of urban and rural power grids. Enhance the power grid optimized configuration power capaci...

AI Technical Summary

Problems solved by technology

The distribution network covers a wide area and the power supply users are complex. Especially in urban low-voltage users, the distribution network lines are overloaded, which causes problems such as high line failure rate and excessive line loss. Therefore, it is necessary to promptly remind the low-voltage users of the load overload situation. Take corresponding protective measures for the distribution network lines, and set corresponding rated capacity for the user terminal according to the actual power load of the user

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