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Frequency modulation control method and device

A control method and controller technology, applied in the direction of reducing/preventing power oscillation, etc., can solve the problems that cannot meet the application requirements, cannot realize personalized frequency modulation control, etc., and achieve the effect of improving system frequency stability

Pending Publication Date: 2021-11-19
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the controller in the electric vehicle or the controller in the charging pile is based on the frequency response coefficient K issued by the dispatching center of the power grid EV , to determine the corresponding change in grid capacity ΔP, and then control the two-way charger to complete the grid to charge the battery or the battery to discharge the grid, which cannot realize personalized frequency modulation control and cannot meet the actual application requirements

Method used

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  • Frequency modulation control method and device
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  • Frequency modulation control method and device

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Embodiment Construction

[0049] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. implementation. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0050] It should be noted that, the above method implementations are described in a progressive manner, and each implementation implementation focuses on the differences from other implementations, and the same and similar parts of the various implementations can be referred to each other.

[0051] During the operation of the power grid, the load will change, res...

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Abstract

The invention provides a frequency modulation control method and device, and is applied to a controller. The controller is used for controlling a battery and a power grid to carry out electric energy interaction so as to carry out frequency modulation. The method comprises the steps: obtaining an electric quantity parameter of the battery when the battery and the power grid carry out electric energy interaction operation; calculating a first frequency modulation factor of the battery according to the electric quantity parameter; determining a primary frequency modulation power reference value of the battery according to the first frequency modulation factor; and controlling the electric energy interaction operation between the battery and the power grid according to the primary frequency modulation power reference value. According to the frequency modulation control method and device provided by the invention, personalized electric energy interaction with the power grid can be carried out according to the electric quantity parameter condition of the battery so as to carry out frequency modulation, and the frequency modulation potential of the electric vehicle with different working conditions is fully excavated.

Description

technical field [0001] The present application relates to the technical field of Vehicle-to-grid (V2G), in particular to a frequency modulation control method and device. Background technique [0002] V2G is the abbreviation of Vehicle-to-grid, which means that when the hybrid electric vehicle or pure electric vehicle is not running, the energy of the battery can be transmitted to the grid. Conversely, when the battery of the electric vehicle needs to be fully charged, the battery can Obtain electrical energy from the grid. The frequency of the power grid will fluctuate due to factors such as load changes, and electric vehicles can charge or discharge the power grid to adjust the frequency of the power grid. The batteries of electric vehicles have fast response characteristics, making them especially suitable for improving the dynamic frequency response of power systems. The large-scale development of electric vehicles makes the system have huge power reserve resources. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/24
CPCH02J3/24
Inventor 刘其辉唐光钰
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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