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- 저자 : Guo Donghui (검색결과 3 건)
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Event-Triggered Robust Optimized Scheme with Impulse Control for DFIG Based Wind Turbine
Qiao Yanping,Guo Donghui 대한전기학회 2023 Journal of Electrical Engineering & Technology Vol.18 No.5
This paper proposes an event-triggered impulse optimized control strategy for a model-free doubly-fed induction generator (DFIG) based wind turbine. Ignite from the Hamilton–Jacobi–Bellman (HJB) optimal control conditions, the stable and robust controls of DFIG under various uncertain conditions, covering generator parameters altering or grid perturbations, are realized. Bypassing the knotty model, a model-free local rotor current loop control model is proposed. Time-varying perturbations in the current (state) and voltage (control signal) of both single-cage and double-cage generators (SCIG and DCIG) are employed in simulating unstructured uncertainties to improve control performance. Unlike the traditional event-triggered optimization control, besides the general robust control conditions of the model-free DFIG, the accurate impulse compensation is synchronously derived with the adaptive neural network of the HJB optimization. Therefore, computation and transmission costs are minimized without affecting the system's stability, and adaptive impulse control is implemented for real-time tuning. Finally, the performance of the proposed controller is verified with a 1.5-MW DFIG model. Superior to proportional-integral resonant control and sliding mode control, better dynamic performance and anti-interference ability, and improved robustness under divergent uncertain conditions such as generator parameter changes or grid disturbances are comprehensively demonstrated.
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王浩颖(Haoying Wang),郭冬辉(Donghui Guo) YIXIN 출판사 2023 Journal of Humanities and Social Sciences Vol.1 No.2
《木兰诗》源自中国南北朝,是一首传统的民间诗歌,至今已有数十个不同的翻译版本。本文旨在从译者主体性视角出发,深入探讨许渊冲和查尔斯·巴德《木兰诗》在“互文”修辞手法上的处理方式。许渊冲的翻译大多采取了聚焦一部分的同时忽略一部分的处理手法,从而让译文尽可能地便于目的语读者地理解。查尔斯·巴德则通过改写的方式,使原诗中的人物形象更加饱满,场景表现更加立体,更满足目的语读者的需求。本研究旨在补充对中国典籍翻译的研究,通过对比两位译者在翻译时对修辞手法的处理,为后续其他中国文化典籍的英译本研究提供一定的借鉴。 Originating in the Southern and Northern Dynasties of China, Mulan Poem is a traditional folk poem that has been translated into dozens of different versions. From the perspective of the translator’s subjectivity, this paper aims to explore the ways in which Xu Yuanchong and Charles Budd’s Mulan Poem deal with rhetorical devices of intertextuality. Most of Xu Yuanchong’s translations focus on one part while ignoring the other, so as to make the translation as easy as possible for the target language readers to understand. By rewriting, Charles Budd makes the characters in the original poem fuller, the scene performance more three-dimensional, which can better meet the needs of the target language readers. This study aims to supplement the research on the translation of Chinese classics, and by comparing the two translators’ treatment of rhetorical devices in translation, it can provide some reference for the subsequent research on the English translation of other Chinese cultural classics.
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A Hybrid Fault-Tolerant Routing based on Gaussian Network for Wireless Sensor Network
Dung Nguyen Quoc,Niansheng Liu,Donghui Guo 한국통신학회 2022 Journal of communications and networks Vol.24 No.1
In this paper, we have proposed a hybrid faulttolerantrouting to solve fault-tolerant issue in wireless sensornetworks (WSNs) based on hierarchical topology. The hierarchicaltopology is a combination of clustering and the labeling ofsensor nodes as Gaussian integers. Accordingly, the network areais divided into small square grids, the cluster head of each gridis represented by a Gaussian integer. These cluster heads areconnected together to create a Gaussian network. Through nodesymmetry, and the shortest distance in the Gaussian network,as well as the advantages of multi-path routing, this paperproposes a hybrid fault-tolerant clustering routing protocol basedon Gaussian network for wireless sensor network (FCGW). Thepurpose of FCGW is to improve fault tolerance, increase datareliability and reduce energy consumption for wireless sensornetworks. The experimental results of the proposed scheme showthat FCGW protocol has high data reliability. In addition, theFCGW protocol consumes about 48% of the energy in thenetwork, while other protocols consume 70% more energy.
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