An optimization method for wind power consumption in multi-regional interconnected power systems considering tie-line power trading plans

Abstract

The invention provides a multi-area interconnected power system wind power consumption optimization method considering connection line electricity transaction scheme. The method comprises the following steps: determining time period and step length of problem research, and collecting calculation data of each province; summarizing data of system thermal power units, grouping the units having same operation parameters into same class and summarizing the number of units in each class; establishing a multi-province interconnected power system wind power consumption optimization module; solving the optimization module by utilizing a solver CPLEX to obtain an optimal solution; and calculating wind power consumption quantity and wind power abandon quantity of each province. The method greatly reduces the number of variables and improves problem solving speed; by introducing wind power abandon section penalty factors and setting value of each section of penalty factor, wind power abandon sequence can be controlled; and with the connection line electricity transaction scheme being taken into consideration, by optimizing connection line power, resource optimized allocation is realized in multiple provinces, and whole-grid wind power priority consumption is realized.

Description

technical field [0001] The invention belongs to the field of new energy consumption in electric power systems, and in particular relates to a wind power consumption optimization method for a multi-regional (for example, provincial) interconnected power system considering tie-line power trading plans. Background technique [0002] In recent years, wind power technology has developed rapidly, and the installed capacity has increased year by year. However, due to my country's large-scale centralized development model, the problem of wind power consumption is prominent, and serious wind curtailment has even occurred in many regions. In order to promote the grid-connected consumption of new energy such as wind power and realize sustainable energy development, my country has successively introduced relevant policies to ensure the priority dispatch of new energy such as wind power. The National Energy Administration clearly pointed out in the "Implementation Opinions on the Orderl...

AI Technical Summary

Problems solved by technology

At this time, the model cannot distinguish where the abandoned wind occurs, which may cause the same place to bear the abandoned wind repeatedly, which is not in line with the principle of fairness

In addition, the traditional contact line plan is generally a simple superposition of power transaction contracts, which is relatively independent from the provincial power generation plan, and does not fully play the role of global allocation of resources

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