Calculation method and calculation device based on three-phase imbalance considering zero line loss

Abstract

The invention provides a calculation method and a calculation device based on three-phase imbalance considering zero line loss. The method comprises the steps of obtaining basic data; constructing a transformer area calculation model according to the basic data; calculating the current of the A phase of each section of wire and the voltage of the A phase of the tail end node by the transformer area calculation model; calculating the current of the B phase of each section of wire and the voltage of the B phase of the tail end node by the transformer area calculation model; calculating the current of the C phase of each section of wire and the voltage of the C phase of the tail end node by the transformer area calculation model; and calculating the loss of each section of wire, the zero linecurrent and the three-phase imbalance degree of a transformer area at least according to part or all of the A-phase current of each section of wire, the A-phase voltage of the tail end node, the B-phase current of the wire, the B-phase voltage of the tail end node, the C-phase current of the wire and the C-phase voltage of the tail end node. According to the scheme, accurate calculation of three-phase imbalance based on consideration of zero line loss is realized.

Description

technical field [0001] The present application relates to the field of three-phase unbalance calculation in a station area, and specifically relates to a calculation method, a calculation device, a computer-readable storage medium and a processor based on a three-phase unbalance calculation based on zero line loss. Background technique [0002] The electricity loss in the low-voltage station area accounts for a large proportion in the power system. Taking corresponding measures to reduce the loss in the station area can save a lot of electric energy for my country's power grid, and has great potential for loss reduction and power saving. The three-phase imbalance in the station area is an important factor for the high power loss in the station area. The three-phase imbalance in the station area will cause excessive current in a certain phase, which will increase line loss, increase the risk of line burnout, and affect safe power supply. [0003] The relatively accurate all-p...

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Problems solved by technology

[0005] The main purpose of this application is to provide a calculation method, a calculation device, a computer-readable storage medium and a processor based on considering the loss of the zero line, so as to solve the lack of a high-precision calculation based on the consideration of the zero line loss in the prior art. Problems of Three-phase Unbalance Calculation Method of Line Loss

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