孫元章 崔明建 柯德平 甘迪

摘 要：風(fēng)電功率爬坡事件越來(lái)越影響風(fēng)力機(jī)在電網(wǎng)中的運(yùn)行，隨之而來(lái)的爬坡事件預(yù)測(cè)問(wèn)題成為國(guó)內(nèi)外新的研究熱點(diǎn)。綜述了風(fēng)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(fēng)力機(jī)的準(zhǔn)穩(wěn)態(tài)潮流計(jì)算模型，將頻率偏差量和滑差修正量引入雅可比矩陣中進(jìn)行含風(fēng)力機(jī)的潮流計(jì)算，采用兩種頻率偏差指標(biāo)PRESF指標(biāo)和APRESF指標(biāo)對(duì)爬坡事件進(jìn)行預(yù)測(cè)。將所述預(yù)測(cè)模型應(yīng)用于5節(jié)點(diǎn)和10機(jī)39節(jié)點(diǎn)系統(tǒng)進(jìn)行算例仿真，對(duì)結(jié)果的對(duì)比分析驗(yàn)證了該方法的有效性。

關(guān)鍵詞：頻率偏差 風(fēng)電功率 爬坡事件 預(yù)測(cè)模型 準(zhǔn)穩(wěn)態(tài)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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