New-energy-power-station-performance-index rolling calculation method adapting to short time scale
A calculation method and new energy technology, applied in the direction of single-network parallel feeding arrangement, etc., can solve the problems of algorithm calculation time consumption and huge system resources, dependence on historical sampling data, abnormal calculation results, etc., to avoid ineffective calculation, Avoid analysis calculations, reduce the effect of system resources
Active Publication Date: 2018-05-25
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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Embodiment 1
[0038] An embodiment of the present invention discloses a rolling calculation method for new energy power station 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] Then, obtain the performance index results calculated in the last round of each new energy power station as the initial value of this round of calcu...
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The invention discloses a new-energy-power-station-performance-index rolling calculation method adapting to the short time scale, and belongs to the technical field of power systems and automation thereof. According to a grid-connection-power prediction curve, a grid-connection-power actual curve and a previous calculated prediction accuracy result of new energy power stations of unlimited time parts in a current calculation period, transmission periods of predicted data and power data are considered, and the grid-connection-power prediction accuracy is calculated in a weighted mode; accordingto a grid-connection-power control instruction curve, a grid-connection-power actual curve and a previous calculated adjusting performance result of limited time parts in the current calculation period, transmission periods of instruction data and power data are considered, and the grid-connection-power adjusting performance is calculated in a weighted mode. According to the new-energy-power-station-performance-index rolling calculation method adapting to the short time scale, on the premise that the correct calculation result is guaranteed, calculation efficiency is greatly improved, and thereliability of a control system is enhanced.
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 ...
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Login to View More 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