A scuc-based optimization method for cross-region contact line transactions

Abstract

The invention provides a trans-regional connecting line transaction optimization method based on SCUC (Security Constrained Unit Commitment). The method comprises steps of setting parameters of power grids, units and trans-regional connecting lines of input and output areas; selecting a trans-regional power transaction planning method; and establishing an input-output unite security constrained unit commitment model and optimizing model calculation. The technical scheme provided by the invention improves the pertinence of power transaction planning of different regions and different power types, can estimate whether the capacity of the trans-regional connecting line meets expansion requirements or not, and provides the technical support for connecting line capacity expansion.

Description

technical field [0001] The invention relates to an optimization method in the field of electric power market and electric power automation, in particular to an SCUC-based cross-region tie line transaction optimization method. Background technique [0002] The Chinese government attaches great importance to the development and utilization of clean energy, and has even raised clean energy power generation and the optimal allocation of large-scale clean energy to the national strategic level. With the promulgation of a series of new energy development policies in my country, the development and utilization of large-scale clean energy has become a major measure to improve the energy structure, build a low-carbon society, and maintain sustainable economic and social development. [0003] Accompanying the large-scale grid-connection of clean energy comes a series of clean energy consumption problems: on the one hand, because large-scale clean energy is mostly far away from the loa...

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Problems solved by technology

[0003] Accompanying the large-scale grid-connection of clean energy comes a series of clean energy consumption problems: on the one hand, because large-scale clean energy is mostly far away from the load center, limited by the load level of the regional power grid and the power structure, the dispatching and operation of clean energy The situation of abandonment of wind and water is serious; on the other hand, the construction of main power plants in the end system does not match the growth rate of electricity demand, resulting in large-scale power cuts in many provinces and cities. Transmission of large amounts of electrical energy, for which the input-side system is increasingly dependent on external power

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