大規模高集中度風電場出力多時空尺度爬坡特征分析、預測與控制

孫元章 崔明建 柯德平 甘迪

摘 要：風電功率爬坡事件越來越影響風力機在電網中的運行，隨之而來的爬坡事件預測問題成為國內外新的研究熱點。綜述了風電功率爬坡事件的研究背景、定義和特征，建立了考慮頻率偏差量的含風力機的準穩態潮流計算模型，將頻率偏差量和滑差修正量引入雅可比矩陣中進行含風力機的潮流計算，采用兩種頻率偏差指標PRESF指標和APRESF指標對爬坡事件進行預測。將所述預測模型應用于5節點和10機39節點系統進行算例仿真，對結果的對比分析驗證了該方法的有效性。

關鍵詞：頻率偏差 風電功率 爬坡事件 預測模型 準穩態潮流

"The Analysis， Forecasting and Control of Wind Power Ramp Characters with Large-scale， High Concentration and Multiple Spatial and Temporal Scales "General Technology Report

Sun Yuanzhang Cui Mingjian Ke Deping Gan Di

（School of Electrical Engineering， Wuhan University）

Abstract：Wind power ramp events influenced the wind machine operation in power system more and more. Ramp events prediction problem becomes a new research hotspot at home and abroad. Research background， definitions and characteristics are summarized with respect to ramp events in this paper. Quasi steady state power flow calculation model is established with wind machine considering the constraint of frequency deviation value. Frequency deviation value and slip correction value is introduced into the Jacobi matrix to calculate the power flow. Two kinds of PRESF and APRESF index are adopted to forecast the ramp events considering the frequency constraint. The proposed forecasting model was applied to 5 nodes and 10 generators 39 nodes system for the validation simulation. The results verified the validity of the method with comparison and analysis.

Key Words：Frequency constraint； Wind power generation； Prediction model； Quasi steady power flow

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