一种基于<em>H</em><sub>∞</sub>闭环控制器的混合式配电变压器

doi:10.19595/j.cnki.1000-6753.tces.L90182

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Abstract Aiming at improving the ability of hybrid distribution transformer (HDT), and solving voltage sags/swells and frequency variations that exist in power distribution system, this paper built the mathematical model of HDT in dq0 coordinates and a controller mathematical model based on Kalman filter and multi-variable regulation H_∞ closed loop theory, then formulated its transfer function. Then a new HDT topology based on H_∞ FF/FB controller was established and its mechanism was analyzed. Proposed type of HDT enables not only compensate voltage when sags/swell happens in power system, but also helps realize zero steady-error, better robustness and frequency variations of load side, which makes HDT could give better performance on the improvement of power quality. Finally the effectiveness of the proposed controller was verified on Matlab/Simulink platform.

Key words： Hybrid distribution transformer voltage sags/swells frequency variations H_∞ closed loop controller power quality

Received: 30 June 2020

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	Articles by authors
	Gao Yachen
	Liang Deliang
	Li Dawei
	Zhou Kun
	Liu Yibin

Cite this article:

Gao Yachen,Liang Deliang,Li Dawei等. A Hybrid Distribution Transformer with H_∞ Closed Loop Controller[J]. Transactions of China Electrotechnical Society, 2021, 36(zk2): 688-695.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.L90182 OR https://dgjsxb.ces-transaction.com/EN/Y2021/V36/Izk2/688

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