PI控制器參數(shù)對并網(wǎng)永磁直驅(qū)型風(fēng)力發(fā)電系統(tǒng)機(jī)網(wǎng)相互作用的影響
發(fā)布時(shí)間:2018-12-05 19:30
【摘要】:為了研究并網(wǎng)永磁直驅(qū)型風(fēng)力發(fā)電(PMSG)系統(tǒng)的振蕩問題,建立了基于PQ解耦控制的PMSG系統(tǒng)的小信號(hào)模型。用特征值分析法和相關(guān)因子分析方法,找出了系統(tǒng)所有的振蕩模態(tài)、特征頻率和主導(dǎo)每種振蕩模態(tài)的狀態(tài)變量,并用基于Copula理論的分布估計(jì)算法尋找最優(yōu)的PI控制器參數(shù)組合。通過MATLAB/Simulink平臺(tái)進(jìn)行時(shí)域仿真,驗(yàn)證了各種振蕩模態(tài)的存在。在不改變系統(tǒng)穩(wěn)定性的前提下,依次改變變流器的控制參數(shù),研究了系統(tǒng)的次同步控制相互作用、次同步振蕩和低頻振蕩模態(tài)的變化情況。利用最佳PI控制器參數(shù)對所建PMSG系統(tǒng)模型進(jìn)行模態(tài)分析,仿真結(jié)果驗(yàn)證了所提模型的正確性。
[Abstract]:In order to study the oscillation of (PMSG) system in grid-connected permanent magnet direct-drive wind power generation, a small-signal model of PMSG system based on PQ decoupling control is established. By means of eigenvalue analysis and correlation factor analysis, all oscillation modes, characteristic frequencies and state variables dominating each oscillation mode of the system are found, and the optimal combination of PI controller parameters is found by the distribution estimation algorithm based on Copula theory. The existence of various oscillatory modes is verified by time domain simulation on MATLAB/Simulink platform. Without changing the stability of the system, the control parameters of the converter are changed in turn, and the variation of the subsynchronous control interaction, the sub-synchronous oscillation and the low-frequency oscillation mode of the system are studied. The modal analysis of the PMSG system model is carried out by using the optimal parameters of the PI controller. The simulation results verify the correctness of the proposed model.
【作者單位】: 上海交通大學(xué)電氣工程系電子信息與電氣工程學(xué)院;上海電機(jī)學(xué)院電氣學(xué)院;
【基金】:國家自然科學(xué)基金資助項(xiàng)目(51277119,51477098) 國家電網(wǎng)公司科技項(xiàng)目(電壓源型換流器群及其與電網(wǎng)間振蕩的機(jī)理與抑制方法研究)(5442NY160025)~~
【分類號(hào)】:TM614
[Abstract]:In order to study the oscillation of (PMSG) system in grid-connected permanent magnet direct-drive wind power generation, a small-signal model of PMSG system based on PQ decoupling control is established. By means of eigenvalue analysis and correlation factor analysis, all oscillation modes, characteristic frequencies and state variables dominating each oscillation mode of the system are found, and the optimal combination of PI controller parameters is found by the distribution estimation algorithm based on Copula theory. The existence of various oscillatory modes is verified by time domain simulation on MATLAB/Simulink platform. Without changing the stability of the system, the control parameters of the converter are changed in turn, and the variation of the subsynchronous control interaction, the sub-synchronous oscillation and the low-frequency oscillation mode of the system are studied. The modal analysis of the PMSG system model is carried out by using the optimal parameters of the PI controller. The simulation results verify the correctness of the proposed model.
【作者單位】: 上海交通大學(xué)電氣工程系電子信息與電氣工程學(xué)院;上海電機(jī)學(xué)院電氣學(xué)院;
【基金】:國家自然科學(xué)基金資助項(xiàng)目(51277119,51477098) 國家電網(wǎng)公司科技項(xiàng)目(電壓源型換流器群及其與電網(wǎng)間振蕩的機(jī)理與抑制方法研究)(5442NY160025)~~
【分類號(hào)】:TM614
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 孫麗平,陳允平,劉會(huì)金;電力系統(tǒng)次同步振蕩[J];湖北電力;2002年06期
2 胡云花,趙書強(qiáng),馬燕峰,黃常抒;電力系統(tǒng)低頻振蕩和次同步振蕩統(tǒng)一模型阻尼分析[J];電力自動(dòng)化設(shè)備;2005年07期
3 宋述波;袁鵬;;貴廣直流次同步振蕩抑制原理[J];繼電器;2007年05期
4 伍凌云;李興源;孫衢;楊煜;洪潮;晁劍;康鵬;;時(shí)域和頻域相結(jié)合的次同步振蕩分析方法[J];中國電力;2007年05期
5 劉海洋;李興源;徐大鵬;;基于小波分析的次同步振蕩檢測研究[J];四川電力技術(shù);2008年01期
6 張曉光;;電力系統(tǒng)次同步振蕩理論分析及仿真軟件應(yīng)用[J];東北電力技術(shù);2008年05期
7 王瑞闖;;電力系統(tǒng)次同步振蕩抑制方法概述[J];電網(wǎng)與清潔能源;2011年02期
8 劉林;林濤;徐遐齡;;采用復(fù)原子解耦調(diào)制濾波的次同步振蕩模態(tài)分析方法及其仿真[J];高電壓技術(shù);2011年08期
9 劉,
本文編號(hào):2365351
本文鏈接:http://www.sikaile.net/kejilunwen/dianlidianqilunwen/2365351.html
最近更新
教材專著