Incoming line power peak suppression method based on multi-power adjusting technology

Abstract

The invention provides an incoming line power peak suppression method based on a multi-power adjusting technology; a load side participates in incoming line power spike suppression, and the real-timepower of any one or more of an adjustable load, a transferable load and a bidirectional power flow load of a power distribution power grid can be controlled, so that the peak suppression of the incoming line power can be realized; the power grid side participates in incoming line power peak suppression, and any one or more of distributed power generation, energy storage, flexible interconnection and direct-current micro-grid modes can be applied, so that the peak suppression of the incoming line power is realized; and meanwhile, the invention provides an incoming line power peak suppression system based on the multi-power adjusting technology. According to the method, the required amount is adjusted, the maximum needed amount is reduced, the basic electric charge is reduced for a large industrial user, and the electricity consumption is saved; the load rate of the transformer is reduced, the transformer overload is prevented, and the utilization rate of the capacity of the transformeris improved; and the virtually high power distribution transformer capacity demand caused by power spikes is reduced, and the capacity expanding cost is lowered.

Description

technical field [0001] The invention relates to the field of power distribution technology and power electronics technology in a power system, in particular to a method and system for suppressing incoming power spikes based on multi-power regulation technology. Background technique [0002] Unlike residential electricity, which only charges electricity charges based on electricity consumption, the electricity bills of large industrial users in my country mostly adopt a two-part system: the electricity bill is calculated according to the actual electricity consumption, and each day is divided into peak, flat, and valley periods. The unit electricity price (per kWh) is different; the basic electricity fee is calculated according to the demand, where the demand refers to the maximum value of the average load power measured at the incoming line per unit time (currently 15 minutes in my country) within the current month. Electricity price and basic electricity price are different ...

AI Technical Summary

Problems solved by technology

[0004] The existing load power peak regulation technology mainly considers the effect of flexible loads and energy storage on the suppression of incoming power peaks, and does not classify and discuss flexible loads according to their different characteristics, nor does it involve distributed power generation, flexible interconnection, DC The effect of the microgrid on the peak suppression of incoming power is not comprehensive enough

[0005] At present, there is no description or report of the similar technology of the present invention, and no similar data at home and abroad have been collected yet.

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