Demand calculation method for different meters of same household in electric power charging system

Abstract

The invention discloses a demand calculation method for different meters in the same household of an electric power charging system. The demand calculation method comprises the following steps: S1, an intelligent demand electricity meter with a built-in Internet of Things communication function, a DTU communication module, an edge calculation server and a touch screen form a complete metering and early warning regulation and control system; s2, firstly, the edge computing server in the S1 issues a clock synchronization instruction to all successfully connected intelligent demand electricity meters; and S3, realizing clock synchronization between the intelligent demand electricity meter in the S2 and the edge computing server. During use, relevant parameters can be conveniently applied to actual regulation and control, so that more important application requirements are met, voltage and current of each loop can be collected and calculated in real time, good clock synchronization characteristics are achieved, automatic synchronization of a multi-meter clock at the initial zero point of each month can be achieved, and the accuracy of the multi-meter clock synchronization is improved. And the risk of time difference during use and the problem of precision reduction caused by time accumulation errors are reduced, and the product reliability is improved.

Description

technical field [0001] The invention relates to the technical field of power billing systems, in particular to a demand calculation method for different meters of the same household in the power billing system. Background technique [0002] According to the relevant documents of the Development and Reform Commission, at present, large industrial electricity users above 315kVA (100kVA in some areas) in my country adopt a two-part electricity price system, which consists of basic electricity fee, electricity electricity fee and power adjustment electricity fee. There are two charging methods for the basic electricity fee: 1. Charge according to the transformer capacity (transformer capacity (kVA)*capacity unit price (yuan / (kVA*month); 2. Charge according to the maximum demand (maximum demand Value (kW)*unit price of demand (yuan / (kW*month). The unit price of demand is generally 1.5 times the unit price of capacity. Therefore, reasonable calculation of the maximum demand has gr...

AI Technical Summary

Problems solved by technology

[0006] More importantly, demand monitoring and measurement in the market are mostly used for background billing, and relevant parameters are not used for actual regulation, which fails to meet more important application requirements

Moreover, there is no negative value in the current demand meter algorithm on the market, which cannot be applied to the same account number, multiple power grid electricity meters and scenarios with reverse loads. Based on this, we propose a power billing system for the same household Demand Calculation Methods for Different Tables

Images