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

A calculation method and index calculation technology, applied in the direction of single-network parallel feeding arrangement, etc., can solve the problems such as the time consumption of algorithm calculation and the huge system resources, dependence on historical sampling data, abnormal calculation results, etc., to avoid ineffective calculation, The effect of avoiding analytical calculations and reducing system resources

Active Publication Date: 2021-03-12
YUNNAN POWER GRID +2
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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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  • A rolling calculation method for new energy power plant performance indicators adapted to short time scales
  • A rolling calculation method for new energy power plant performance indicators adapted to short time scales
  • A rolling calculation method for new energy power plant performance indicators adapted to short time scales

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Embodiment 1

[0038] An embodiment of the present invention discloses a rolling calculation method for new energy power plant performance indicators that adapts to a short time scale, and its implementation steps are as follows figure 1 shown.

[0039] Firstly, if the control algorithm of the grid-connected active power of the new energy power station needs to obtain the performance index data of each new energy power station according to the requirements of the safe and stable control operation of the power grid at this time, then enter the next step; otherwise, end the method. The performance index data of each new energy power station includes the grid-connected active power prediction performance index of the new energy power station and the grid-connected active power regulation performance index of the new energy power station.

[0040] Next, obtain the performance index results calculated in the last round of each new energy power station as the initial value of this round of calcula...

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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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/48
CPCH02J3/48
Inventor 李吉晨赵川王珍意徐泰山王昊昊汪马翔扈卫卫陈堂龙段慧赵明张昊天段荣华
Owner YUNNAN POWER GRID
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