Optimization method and system for spot transaction market electric quantity calculation

Abstract

The invention discloses an optimization method and system for spot transaction market electric quantity calculation, and the method comprises the steps of substituting the bidding electric quantitiesand electricity prices of all bidding power plants in each province into a pre-built in-province bidding model, carrying out the calculation of the in-province bidding model through an improved simplex method, and obtaining the full power shortage in each province; substituting the full and insufficient electric quantity of each province and the quotation curve of each province into a pre-constructed inter-province bidding model, and calculating the inter-province bidding model by utilizing an improved simplex method to obtain transaction electric quantity of each province; according to the improved simplex method, when a basic credible solution is calculated through a rotating shaft, making a column where a base variable is located to be a main element column, making a row where an off-base variable is located to be a main element row, and using a Gaussian elimination method for elimination principal element operation. According to the invention, the calculation process is simplified,the calculation accuracy is ensured, and the problem of economic loss caused by accuracy errors is avoided.

Description

technical field [0001] The invention relates to the technical field of power grid dispatching automation, in particular to an optimization method and system for electricity calculation in a spot trading market. Background technique [0002] At present, the power trading market has basically realized the construction of a power sales side market with separation of factories and grids and online bidding. In the past two years, the transaction volume of the power market has increased rapidly. In 2016, 20% of the electricity consumption of the whole society passed through market transactions. However, there are still some problems in the current electricity market, such as electricity transactions are mainly concentrated in the provincial market and the management model is over-centralized. On the one hand, these problems make it difficult for the existing electricity market to meet market demand. On the other hand, it is necessary to increase the cross-regional consumption of s...

AI Technical Summary

Problems solved by technology

However, there are still some problems in the current electricity market, such as electricity trading is mainly concentrated in the provincial market and the management model is over-centralized

On the one hand, these problems make it difficult for the existing electricity market to meet market demand. On the other hand, it is necessary to increase the cross-regional consumption of surplus renewable energy and promote energy cleanliness. Therefore, the calculation of electricity in the spot market at this stage not only includes The calculation of the surplus and shortage of electricity in the province also includes the calculation of the transaction electricity between provinces. In order to promote the rational development of electricity resources, the bidding of the spot market for transaction electricity is introduced.

However, the traditional method must calculate all the columns of the coefficient matrix, the calculation process is cumbersome and the accuracy will decrease with the increase of the calculation depth of the rotation axis, and in the electricity market, a small accuracy error will cause huge economic losses, which needs to be improved Existing Calculation Methods Improve Calculation Accuracy

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