Method and device for improving wind and light resource utilization rate and power prediction accuracy

• Main Authors: HE HUAWEI, XIE JINGHUANG, ZHOU YUE, WU LINCHENG, WEN FUGUANG
• Format: Patent
• Language: Chinese; English
• Published: 05.12.2023
• Subjects: CALCULATING; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; COMPUTING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; GENERATION; PHYSICS; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention discloses a method and device for improving the utilization rate of wind and light resources and the power prediction accuracy rate, and is suitable for a new energy power station containing energy storage. According to the method, after the safe reserved electric quantity is subtracted from the current accumulated energy storage electric quantity, the remaining part is smoothly distributed according to the trend of short-term power prediction, and the short-term power prediction is optimized and improved. According to the invention, a double-loop cascade control method is adopted, the coupling of energy storage and new energy power generation control loops is reduced, the design complexity of the system is reduced, and the operation reliability is improved. 本发明公开了一种提高风光资源利用率和功率预测准确率的方法和装置，适用于含储能的新能源发电站。所述方法根据当前累计储能电量，减去安全保留电量后，将剩余部分按照短期预测功率的趋势进行平滑分布，优化并提高短期预测功率。本发明采用一种双回路串级控制方法，减少储能与新能源发电控制回路耦合性，降低系统设计复杂度，提高运行可靠性。