Multi-power dispatching mechanism AGC unified frequency modulation control method, device and system supporting frequency modulation auxiliary service market

Abstract

The application relates to a multi-power dispatching mechanism AGC unified frequency modulation control method, device and system supporting a frequency modulation auxiliary service market, a computerdevice and a storage medium. The method comprises the steps of: obtaining the real-time frequency of a power grid, and determining the frequency adjustment requirement of the power grid according tothe real-time frequency of the power grid; obtaining a clearing result of the unified frequency modulation auxiliary service market and the operation information of each power dispatching mechanism AGC, and obtaining the regional control deviation of each power dispatching mechanism AGC participating in the unified frequency modulation control according to a frequency adjustment demand, the clearing result, and the frequency modulation data of each power dispatching mechanism AGC participating in the unified frequency modulation control; and sending the regional control deviation to the corresponding power dispatching mechanism AGC participating in the unified frequency modulation control in order that the corresponding power dispatching mechanism AGC participating in the unified frequencymodulation control obtains the newly added regional frequency modulation demand according to the regional control deviation, and allocates the newly added regional frequency modulation demand to a subordinate power generating unit according to the clearing result. The method can quickly dispatch the frequency modulation resources of the entire power grid.

Description

technical field [0001] The present application relates to the technical field of electric power system control, in particular to a unified frequency regulation control method, device, system, computer equipment and storage medium for AGC of multiple power dispatching agencies supporting the frequency regulation auxiliary service market. Background technique [0002] In modern power systems, multiple regional power grids are interconnected through tie lines to form a large power system. Although DC transmission is gradually being used, AC interconnected power systems are still very common. In a large-scale AC interconnected power system, due to the large coverage of the power grid, the large number of substations and power plants, and the wide distribution, it is generally divided into multiple regional power grids. or according to the different levels and regions of general dispatch, provincial dispatch, and local dispatch, set up multiple power dispatching agencies to carr...

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Problems solved by technology

In this control mode, the functions of each AGC are relatively opposite, and it is relatively easy to implement, but it has the following defects: it is difficult to accurately adjust the parameters between AGCs using different modes, resulting in multiple adjustments in each area when the system frequency is disturbed, making the system The frequency fluctuates for a long time; due to the uneven distribution of frequency modulation resources in various regions, when the frequency disturbance source is in an area with few frequency modulation resources, the frequency modulation demand needs to be transmitted to other areas through the power change of the tie line, and the frequency modulation resources in other areas cannot be quickly called High-quality frequency regulation resources; when multiple AGCs need to perform frequency regulation according to the requirements of the unified frequency regulation auxiliary service market, it is difficult to coordinate the frequency regulation of subordinate power generation units in each region

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