Electricity pricing method for electric automobile space-time charging-discharging of power distribution network

Abstract

The invention discloses an electricity pricing method for electric automobile space-time charging-discharging of a power distribution network, comprising the following steps of determining a time-of-use electricity price strategy by optimizing a load curve based on the space-time transfer characteristic of an electric automobile and response characteristics of a user to the electricity price withthe purpose of reducing the load fluctuation of the power distribution network; establishing a power distribution network reconstitution model with the purpose of reducing the transmission losses of the power distribution network, solving to obtain an optimal space electricity price for charging-discharging load; and determining the electric automobile space-time charging-discharging electricity price of the power distribution network. The electricity pricing method for the electric automobile space-time charging-discharging of the power distribution network is capable of guiding electric automobile users to orderly charge and discharge in two scales of time of space, the transmission losses of the power distribution network are reduced, the difference between peak and valley of the powerdistribution network is reduced, the voltage quality of the power distribution network is improved, and the charging expense of the electric automobile user is reduced.

Description

technical field [0001] The invention relates to the technical field of electric power system analysis, in particular to a method for formulating space-time charging and discharging electricity prices of electric vehicles in a distribution network. Background technique [0002] With the rapid development of the economy, the shortage of fossil fuels and serious environmental pollution problems have become more and more serious. As a clean means of transportation, the development and popularization of electric vehicles will become an inevitable trend. Governments of all countries are vigorously encouraging electric vehicles. development of. However, with the increase in the number of electric vehicles, a large number of electric vehicles need to be connected to the grid for charging. When electric vehicles are connected to the grid disorderly, their charging load will have a great impact on the grid, which may cause local overload of the grid and affect the safe and stable ope...

AI Technical Summary

Problems solved by technology

At present, the research on the pricing method of electric vehicle charging and discharging mainly focuses on the time-of-use electricity price strategy, and does not take into account the influence of the spatial location differences of different charging stations on the power flow of the distribution network.

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