A rolling calculation method for new energy power plant performance indicators adapted to short time scales

Abstract

The invention discloses a rolling calculation method for the performance index of a new energy power station adapted to a short time scale, and belongs to the technical field of power systems and automation thereof. According to the present invention, the grid-connected power prediction curve, the grid-connected power actual curve and the prediction accuracy results of the previous round of calculations for the unrestricted part of the new energy power station in the current calculation period are considered, and the weighted calculation is performed considering the transmission period of the forecast data and power data. Grid-connected power prediction accuracy; according to the control instruction curve of the limited time part of the grid-connected power in the current calculation cycle, the actual grid-connected power curve and the adjustment performance results of the previous round of calculations, considering the transmission cycle of command data and power data, Weighted calculation of current round grid-connected power regulation performance. The invention greatly improves the calculation efficiency and enhances the reliability of the control system on the premise of ensuring the correct calculation result.

Description

technical field [0001] The invention belongs to the technical field of electric power systems and automation thereof, and in particular relates to a rolling calculation method for new energy power station performance indicators adapting to a short time scale. Background technique [0002] The volatility, intermittency and randomness of wind power, photovoltaic and other new energy generation characteristics have brought many new problems to the centralized grid connection of large-scale new energy. How to accurately, effectively and quickly centralize the control of new energy power stations has always been a It is a hotspot of research by scholars at home and abroad. GB / T 19963-2011 "Technical Regulations for Wind Farm Connected to Power System" promulgated by the National Standardization Management Committee clearly requires that "the wind farm should be equipped with an active power control system with the ability to adjust active power, receive and automatically execute ...

AI Technical Summary

Problems solved by technology

[0004] Although the existing technical achievements can calculate the new energy indicators of new energy stations, they rely too much on historical sampling data, and when the statistical period is long, the calculation time and system resources consumed by the algorithm are very large, and calculation failures and abnormal calculation results are prone to occur Happening

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