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    Please use this identifier to cite or link to this item: http://ir.lib.ksu.edu.tw/handle/987654321/12884


    Title: 灰色預測可變結構控制之並聯單相換流器
    Authors: 張恩誌;張富爵;梁從主;陳建富;殷李彭
    Contributor: 電機工程系
    Keywords: 並聯單相換流器;可變結構控制;灰色預測;顫動 現象
    Parallel-connected single-phase converters;variable structure control;Grey prediction;chattering phenomenon
    Date: 2010-12-03
    Issue Date: 2010-12-16 15:27:41 (UTC+8)
    Publisher: 台南縣:崑山科技大學
    Abstract: 本論文提出灰色預測可變結構控制之並聯單相換流器的
    設計。在並聯模組中,穩定的交流輸出電壓與均衡的電流分
    配,可藉由可變結構控制予以建立。然而,當系統不確定性
    值被過度估測時,顫動現象存在於可變結構控制之滑動面。
    這可能激發系統未模式化的高頻動態以及危及系統。為了改
    善顫動,灰色預測被用來估測系統不確定性值的邊界。因
    此,低失真的弦波輸出電壓可被得到,甚至在非線性負載的
    狀況下,因為灰色預測可變結構控制提供了優越的性能, 諸
    如快速的動態響應、系統不確定性狀況下具強健性以及顫動
    的減少。模擬結果驗證了本文提出的控制方法。
    This paper proposes the design of parallel-connected single-phase converters using variable structure control (VSC) with grey prediction (GP). AC output voltage regulation and balanced current-sharing among the parallel modules is achieved by means of VSC. But, the chattering phenomenon around the sliding surface exists when the system uncertainties values are overestimated. This may excite the unmodelled high-frequency dynamics of the system and imperil system. In order to overcome the chattering, grey prediction is used to estimate the system uncertainties boundaries. A low distorted sinusoidal output voltage can be obtained even though at the nonlinear load conditions because VSC with GP provides the excellent performances, such as fast dynamics response, robustness to system uncertainties, and reduced chattering. Simulation results are performed to verify the proposed method.
    Relation: 第31屆電力工程研討會
    Appears in Collections:[電機工程系所 ] 2010第卅一屆電力工程研討會

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