本文選題：風(fēng)電　切入點(diǎn)：風(fēng)電隨機(jī)激勵(lì)　出處：《電力自動(dòng)化設(shè)備》2016年03期 　論文類型：期刊論文

【摘要】：為了探討風(fēng)電隨機(jī)激勵(lì)對(duì)電力系統(tǒng)暫態(tài)穩(wěn)定的影響,提出一種基于隨機(jī)微分理論對(duì)含風(fēng)電電力系統(tǒng)進(jìn)行建模和穩(wěn)定分析的方法。首先將異步風(fēng)機(jī)機(jī)械功率作為隨機(jī)激勵(lì),在暫態(tài)過程中利用伊藤型隨機(jī)微分方程對(duì)異步風(fēng)機(jī)的轉(zhuǎn)子運(yùn)動(dòng)方程進(jìn)行建模,將傳統(tǒng)的微分代數(shù)方程模型擴(kuò)展成隨機(jī)微分代數(shù)方程模型;然后針對(duì)新的模型,通過時(shí)域仿真進(jìn)行求解,分析風(fēng)電功率隨機(jī)波動(dòng)對(duì)電力系統(tǒng)暫態(tài)過程的影響。算例結(jié)果表明:相比于確定性和概率性暫態(tài)穩(wěn)定分析方法,所提方法能夠更好地揭示風(fēng)電不確定性對(duì)電力系統(tǒng)暫態(tài)穩(wěn)定性的影響。
[Abstract]:In order to investigate the influence of wind power random excitation on transient stability of power system, a method of modeling and stability analysis of wind power system with wind power system based on stochastic differential theory is proposed. Firstly, the mechanical power of asynchronous fan is taken as random excitation. In the transient process, Ito stochastic differential equation is used to model the rotor motion equation of the asynchronous fan, and the traditional differential algebraic equation model is extended to the stochastic differential algebraic equation model. The influence of random fluctuation of wind power on the transient process of power system is analyzed by time-domain simulation. The numerical results show that compared with deterministic and probabilistic transient stability analysis methods, The proposed method can better reveal the influence of wind power uncertainty on the transient stability of power system.
【作者單位】： 四川大學(xué)電氣信息學(xué)院;國(guó)網(wǎng)四川省電力公司電力經(jīng)濟(jì)研究院;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51261130472) 英國(guó)阿爾斯通公司國(guó)際合作項(xiàng)目(11H0207)~~
【分類號(hào)】：TM712;TM614

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1 劉詠飛;鞠平;薛禹勝;吳峰;張建勇;;隨機(jī)激勵(lì)下電力系統(tǒng)特性的計(jì)算分析[J];電力系統(tǒng)自動(dòng)化;2014年09期

2 ;[J];;年期

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本文編號(hào)：1646216