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Adrián Criollo, Luis I. Minchala-Avila, Dario Benavides, Paul Arévalo, Marcos Tostado-Véliz, Daniel Sánchez-Lozano and Francisco Jurado
The integration of renewable resources in isolated systems can produce instability in the electrical grid due to its intermintency. In today?s microgrids, which lack synchronous generation, physical inertia is substituted for inertia emulation. To date, ...
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Thiago Tricarico, João Adolpho Costa, Danilo Herrera, Eduardo Galván-Díez, Juan M. Carrasco and Mauricio Aredes
This work proposes a metric to assess the spread of the switching frequency profile of power converters, focusing on Finite Control Set-Model-Predictive-Control (FCS-MPC)-based converters, and analyses the effect of the filter sizing, sampling period, an...
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Nabeel Ali Khan, Sadiq Ali and Kwonhue Choi
An efficient direction of arrival estimation method is proposed. The proposed algorithm accurately estimates the instantaneous frequency of signals received by multiple sensors (array of sensors/antennas). The estimated instantaneous frequency is then us...
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Jiayi Peng, Hao Xu, Hailei Jia, Dragoslav Sumarac, Tongfa Deng, Xin Zhang and Maosen Cao
Eigen-frequency, compared with mode shape and damping, is a more practical and reliable dynamic feature to portray structural damage. The frequency contour-line method relying on this feature is a representative method to identify damage in beam-type str...
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Yong-An Jung and Young-Hwan You
Digital radio mondiale (DRM) is a terrestrial radio broadcasting standard to replace existing analogue AM and FM broadcasting, which is based on an orthogonal frequency division multiplexing (OFDM) technique. This paper focuses on the issue of estimating...
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Nur Fatin Fatina Mohd Ramli, Mohd Azuwan Mat Dzahir and Shin-Ichiroh Yamamoto
Depending on task requirements, a human is able to select distinct strategies such as the use of an ankle strategy and hip strategy to maintain their balance. Postural control actions often co-occur with other movements, and such movements may bring abou...
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Yunxiang Wang, Chen Wang, Yangping Tao, Yang Liu, Qiang Zhou, Jun Su, Zhiyong Wang, Shuangjin Shi and Qi Qiu
Optical phase locking is a critical technique in space coherent optical communication and active coherent laser beam combining. In a typical optical phase locking loop based on nonplanar ring oscillators, the pull-in range is normally less than 1 MHz, li...
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Qiujiang Liu, Binghan Sun, Qinyao Yang, Mingli Wu and Tingting He
Harmonic overvoltage in electric railway traction networks can pose a serious threat to the safe and stable operation of the traction power supply system (TPSS). Existing studies aim at improving the control damping of grid-connected converters, neglecti...
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Irem Zeynep Yildirim, Berk Turkel and Erol Guler
Mechanically stabilized earth (MSE) walls perform well under earthquake loads, and hence they are preferred in earthquake-prone regions. The multifaceted load transfer between the components of the MSE wall under seismic loads can be captured using numer...
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Hongyu Shao, Sizhe Pan, Yufei Song and Quanfu Li
In the context of rapid product iteration, design conflicts arise from discrepancies in designers? understanding of user needs, influenced by subjective preferences, behavioural stances, and other factors. This paper proposes a product conceptual design ...
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Kritchanan Charoensuk and Thunyaseth Sethaput
Vibration is challenging and significant in solving engineering problems. The issue of vibration in loaded objects by utilizing a three-dimensional model and experiments. Typically, an object is subjected to a random frequency, which changes the notch sh...
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Olga Poliak and Doron Shmilovitz
Appropriate frequency response is an issue of great importance in power system management, especially in an islanded one. An energy-based method for assessing a system?s response, which is needed to prevent under frequency load shedding (UFLS), is introd...
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Daniel van Niekerk, Brydon Schoombie and Pitshou Bokoro
High-frequency transformer core materials are used in power converter applications due to high efficiency performance. Their volume and weight can be reduced when higher operating frequencies are used but at the expense of an increase in core material lo...
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Chengxu Feng, Yasong Luo, Jianqiang Zhang and Houpu Li
The underwater acoustic communication technique for high-speed and highly reliable information transmission in the ocean has been one of the popular research focuses facing the fast-growing information technology sector and the accelerating development o...
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Bin Li, Feng Tong, Xiujing Gao, Junhui Yao, Yuehai Zhou and Hongwu Huang
With its superiorities of low cost, high flexibility and deployment convenience, small-size autonomous underwater vehicles (AUVs) have been extensively applied to perform a variety of undersea missions. While underwater acoustic (UWA) communication provi...
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Seokjae Heo, Seunguk Na and Wonjun Choi
This study evaluates the vibration data of high-rise buildings during a typhoon by measuring the vibration data and using international serviceability standards. In order to do this, the horizontal vibration serviceability evaluation standards of each co...
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Mi Tian, Shengfa Yang and Peng Zhang
The acoustic method, which enables continuous monitoring with great temporal resolution, is an alternative technique for detecting bedload movement. In order to record the sound signals produced by the impacts between gravel particles and detect the bedl...
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Volodymyr Nadykto, Volodymyr Kyurchev, Pavol Findura, Taras Hutsol, Slawomir Kurpaska, Anna Krakowiak-Bal and Vyacheslav Vasyuk
The modern world industry involves the use of innovative approaches and optimisations of the existing agricultural management methods, which contribute to the implementation of the sustainable development of related industries and economies of different ...
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Weichong Yao, Junwei Lu, Foad Taghizadeh, Feifei Bai and Andrew Seagar
This paper presents a novel structure of Integrated SiC MOSFETs with a high-frequency transformer (I-SiC-HFT) for various high-power isolated DC?DC converters. Several resonant converters are considered for integration in this paper, including the phase-...
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Jian Wang, Yafei Shi and Cheng Yang
As one of the key technologies of HF communication, the maximum usable frequency (MUF) prediction method has been widely discussed. To experimentally confirm the reliability of commonly used MUFs prediction models for high-frequency communication, we hav...
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