Monte Carlo-based simulation method for the dynamic change of the number of electric vehicles controlled by frequency modulation in power system

Abstract

The invention relates to a Monte Carlo-based method for simulating dynamic changes in the number of electric vehicles controlled by frequency modulation in a power system, and belongs to the technical field of electric vehicles and their access to power grids. The method includes the following steps: Step 1: Initialize the relevant parameters of the electric vehicle; Step 2: Determine the category of the electric vehicle, and determine the controllable state timetable for entering / exiting all electric vehicles according to different categories; Step 3: Statistically analyze the timetable , get the number of electric vehicles in the controllable state N' at each moment in the region in (t i ) and the number of electric vehicles in controllable state N' out (t i ); Step 4: Calculate the cumulative number of vehicles entering / exiting the controllable state; Step 5: Calculate the number of controllable electric vehicles. This method can well calculate the number of controllable electric vehicles in the area, and calculate the dynamic changes of the number of various controllable electric vehicles participating in system frequency modulation. System frequency modulation has laid a solid theoretical foundation.

Description

technical field [0001] The invention belongs to the technical field of electric vehicles and their access to power grids, and relates to a Monte Carlo-based method for simulating dynamic changes in the number of electric vehicles controlled by frequency modulation in a power system. Background technique [0002] Electric vehicle and grid interaction (Vehicle-to-Grid, V2G) technology refers to a new type of technology for electric vehicles to realize two-way exchange of information and energy with the grid under a controlled state. This technology emphasizes that in addition to absorbing energy from the grid, electric vehicle batteries can feed back battery energy to the grid when necessary. V2G system is a high-end comprehensive application system integrating power electronics, communication, dispatching, metering and load demand side management and many other technologies. It embodies the energy storage function of electric vehicle batteries. Using V2G technology, electric...

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Problems solved by technology

In China, electric vehicles are still in the early stage of market promotion, the number of electric vehicles is very limited, and there is a lack of actual data as research support, and domestic research on electric vehicles participating in system frequency modulation is rare, and there is a lack of controllable electric vehicles participating in system frequency modulation Research on Algorithm of Quantity Variation

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