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New energy secondary frequency modulation method, device and equipment

A secondary frequency modulation and new energy technology, applied in the field of electric power, can solve problems such as overshoot

Active Publication Date: 2021-09-07
GUANGDONG POWER GRID CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage of this method is: there is overshoot, which delays the recovery of the system frequency

Method used

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  • New energy secondary frequency modulation method, device and equipment
  • New energy secondary frequency modulation method, device and equipment
  • New energy secondary frequency modulation method, device and equipment

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no. 1 example

[0057] The above is the first embodiment of a new energy secondary frequency regulation method provided by the embodiment of the present application, and the following is the second embodiment of the new energy secondary frequency regulation method provided by the embodiment of the present application.

[0058] see figure 2 , a schematic flow chart of the second embodiment of a new energy secondary frequency modulation method in the embodiment of the present application, including:

[0059] Step 201: Based on the first conversion rule, convert the prefecture-level new energy power station set composed of prefecture-level new energy power stations into a provincial virtual new energy power station, and combine the original provincial new energy station and the provincial virtual new energy station As a provincial new energy power station.

[0060] It can be understood that, in an implementation manner, the above-mentioned first conversion rule includes:

[0061] The power of...

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Abstract

The invention discloses a new energy secondary frequency modulation method, device and equipment. The method comprises the steps of: by starting from the lowest level of new energy power stations, converting a new energy power station set composed of new energy power stations of the level into a superior virtual new energy power station to obtain corresponding new energy power stations of each level; obtaining the total power needing to be adjusted of the whole new energy power station system; and based on the total power and the total capacity of each level of new energy power stations, performing power distribution from top to bottom from the highest level of new energy power stations. The technical problems that overshoot exists in an existing new energy secondary frequency modulation method, and system frequency recovery is delayed are solved.

Description

technical field [0001] The present application relates to the field of electric power technology, and in particular to a new energy secondary frequency regulation method, device and equipment. Background technique [0002] With the development of science and technology, the proportion of wind and new energy (hereinafter referred to as new energy) connected to the power grid is increasing rapidly. Unlike traditional hydrothermal power, new energy is greatly affected by meteorological conditions, and power fluctuations are relatively random. Due to the relatively slow development of the network structure and reserve capacity construction of the regional power grid, the traditional configuration method of using hydro-thermal power plants as the main frequency regulation resources has been difficult to meet the high-quality dynamic frequency regulation requirements of the system. In this situation, mining new high-quality frequency regulation resources has also become one of the...

Claims

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Application Information

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IPC IPC(8): H02J3/24H02J3/46
CPCH02J3/241H02J3/466H02J2300/24H02J2300/28Y02E10/56
Inventor 余浩宫大千林勇刘新苗左郑敏许亮伍文聪朱益华郭琦罗超曾冠铭李成翔胡云
Owner GUANGDONG POWER GRID CO LTD