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  本文選題：等效可控系統(tǒng) + 線性擴張狀態(tài)觀測器　； 參考：《中國電機工程學(xué)報》2017年11期

【摘要】：基于線性擴張狀態(tài)觀測器和李雅普諾夫(Lyapunov)直接法設(shè)計了風(fēng)電場同步穩(wěn)定控制策略,驅(qū)動系統(tǒng)達到故障后平衡點。首先將含有風(fēng)電場接入的電力系統(tǒng)建模為串級系統(tǒng),利用串級控制理論設(shè)計風(fēng)電場穩(wěn)定控制策略。其中,同步機為第一級,風(fēng)電場為第二級子系統(tǒng)。針對同步機子系統(tǒng),通過等效可控變換將多機系統(tǒng)轉(zhuǎn)化為風(fēng)電場等效可控系統(tǒng),利用線性擴張狀態(tài)觀測器和Lyapunov直接法設(shè)計了改善系統(tǒng)同步穩(wěn)定性的虛擬控制律。針對風(fēng)電場子系統(tǒng),基于線性擴張狀態(tài)觀測器設(shè)計了風(fēng)電場的穩(wěn)定控制律,使風(fēng)電場功率調(diào)制能夠快速跟蹤虛擬控制律。控制策略無需系統(tǒng)的詳細模型信息,具有良好的魯棒性。在改進的IEEE39節(jié)點系統(tǒng)中,驗證了控制策略的有效性和魯棒性。
[Abstract]:Based on the linear extended state observer and Lyapunov Lyapunov-direct method, the synchronous stability control strategy of wind farm is designed, and the driving system reaches the equilibrium point after failure.Firstly, the power system with wind farm connection is modeled as cascade system, and the stable control strategy of wind farm is designed by using cascade control theory.Among them, synchronous machine is the first stage, wind farm is the second sub-system.For the synchronous machine subsystem, the multi-machine system is transformed into the wind farm equivalent controllable system by equivalent controllable transformation. The virtual control law to improve the synchronization stability of the system is designed by using the linear extended state observer and Lyapunov direct method.For the wind farm subsystem, the stability control law of wind farm is designed based on linear extended state observer, which makes the power modulation of wind farm track the virtual control law quickly.The control strategy does not need the detailed model information of the system and has good robustness.The effectiveness and robustness of the control strategy are verified in the improved IEEE39 node system.
【作者單位】： 華南理工大學(xué)電力學(xué)院;
【基金】：國家重點基礎(chǔ)研究發(fā)展計劃項目(973項目)(2012CB215104)~~
【分類號】：TM614

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1 馬幼捷;趙健;周雪松;田程文;;并聯(lián)混合型有源電力濾波器的線性自抗擾控制及穩(wěn)定性分析[J];電網(wǎng)技術(shù);2012年11期

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