In-network quick standby coordination and optimization scheduling method used after high-power vacancy accidents

Abstract

The invention discloses an in-network quick standby coordination and optimization scheduling method used after high-power vacancy accidents. The method includes the steps that firstly, with the maximum of usable power transmitting capacity among all regions and residual standby capacity of all sub regions as the optimization target, meanwhile, the constraint conditions such as province discontinuity surface quota and region standby limit are considered, and an allocation scheme among all provinces and cities of the standby assembling amount is solved; furthermore, an allocation principle among units of the standby assembling amount of all the provinces and cities is obtained. According to the method, through network and province two-level scheduling and coordination control, the coordinated optimization scheduling of province-to-province emergency power support after the high-power vacancy accidents is achieved, and quick processing of power lack disturbance is guaranteed.

Description

technical field [0001] The invention relates to a power grid backup optimization dispatching method, in particular to an intra-network rapid backup coordination optimization dispatching method considering the safety margin of a dangerous section after a large power shortage accident in the power grid. Background technique [0002] my country is rich in energy resources, but the geographical distribution is extremely uneven, showing the distribution characteristics of "more in the north and less in the south" and "more in the west and less in the east". However, the level of regional economic development and consumption in my country is the opposite. The situation of the reverse distribution of load centers has established the basic pattern and development strategy of my country's power energy "transmission from west to east, mutual supply between north and south, and national networking". Therefore, long-distance large-capacity power transmission is imperative in our country....

AI Technical Summary

Problems solved by technology

The method of manually adjusting unit output has the following disadvantages: The reserve mobilization ratio of the control areas of each province and city and the secondary allocation to the power plant are determined by the dispatcher based on experience, which lacks evidence; during the time period when the AGC function is withdrawn, the system cannot The fluctuation of load and plan deviation accurately adjusts the unit output, and the real-time and accuracy of frequency adjustment are poor; the frequency recovery of the power grid is slow, and the role of backup and sharing of the entire network has not been played

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