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2024 OES China Ocean Acoustics, COA 2024

作者： Liu, Jiahui Wang, Zuoshuai Yang, Wentie Liu, Lanyi Xu, Yidong Harbin Engineering University College of Information and Communication Engineering Harbin China Wuhan Second Ship Design and Research Institute Hubei Key Laboratory of Marine Electromagnetic Detection and Control Wuhan China Hygon Information Technology Co. Ltd. Wuhan China Yantai Research Institute of Harbin Engineering University Yantai China

ISBN: (纸本)9798350340297

Autonomous underwater vehicles (AUV) have been increasingly employed in marine resource exploration and development tasks;however, maintaining of long-term operations requires energy supplementation, which mandates docking with platforms. To address the challenges of AUV docking in intricate oceanic environments, this study proposes a novel docking guidance solution, grounded in the rotating current field mechanism. This approach employs multiple pairs of dipoles to transmit fixed phase difference signals, thereby creating a stable and uniform low-frequency current field region. Furthermore, based on the signal amplitude and phase characteristics relative to position, this paper introduces three AUV docking guidance methods able to achieve precise positioning and expedite the docking process. Experimental findings demonstrate that the proposed docking guidance method offers notable advantages in terms of positioning accuracy and feasibility of implementation, thus presenting a novel technical avenue for AUV underwater docking guidance. © 2024 IEEE.

关键词： marine navigation

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Underwater Electric Dipole Source Localization Based on Hybrid Particle Swarm Optimization-Gravitational Search Algorithm

Underwater Electric Dipole Source Localization Based on Hybr...

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2024 OES China Ocean Acoustics, COA 2024

作者： Liu, Jiahui Yang, Wentie Wang, Zuoshuai Chen, Jiong Xu, Yidong College of Information and Communication Engineering Harbin Engineering University Harbin China Wuhan Second Ship Design and Research Institute Hubei Key Laboratory of Marine Electromagnetic Detection and Control Wuhan China SiEngine Technology Co. Ltd. Wuhan China Yantai Research Institute of Harbin Engineering University Yantai China

ISBN: (纸本)9798350340297

The localization process of the underwater electric dipole source involves solving the global optimal solution of a nonlinear function, which necessitates a multidimensional search and remarkable computational resources. Challenges including slow solution speed and the risk of missing the global optimal solution also exist. To address these challenges, in this study, a global search and localization method based on normalized electric field amplitude, which simultaneously matches and solves the target source position and dipole moment, is proposed. Moreover, the particle swarm optimization (PSO) algorithm is integrated with the gravitational search (GSA) algorithm to propose the improved time-varying inertia-weighted PSO and GSA hybrid optimization algorithm (TVIW-PSO-GSA), enabling rapid optimization and solution of underwater electric dipole source localization. The proposed algorithm exhibits strong convergence capabilities while ensuring local search accuracy. The simulation results reveal that the proposed algorithm achieves faster convergence speed and more accurate estimation performance when compared with traditional optimization algorithms. © 2024 IEEE.

关键词： Particle swarm optimization (PSO)

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Simulation for the Underwater Power Supply System Based on Underwater Inverter Scheme

Simulation for the Underwater Power Supply System Based on U...

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China International Electrical and Energy Conference (CIEEC)

作者： Chujun Li Junzhao Zhang Dong Jiang Jiangyan Guo Hui Ouyang Huazhong University of Science and Technology Wuhan China CNOOC Research Institute Ltd Beijing China Hubei Key Laboratory of Marine Electromagnetic Detection and Control Wuhan China

ISBN: (数字)9798350359558

ISBN: (纸本)9798350359565

With the increasing global exploration of offshore oil and gas, underwater power supply systems have longer power supply distances and require more electrical equipment. So underwater power supply systems based on underwater transformers are challenging to meet extraction demands due to its high cost. In this case, the systems implementing the underwater inverter scheme have lower costs. This paper simulates the underwater power supply system based on an underwater inverter scheme. The load type is compressors. The motor control method is Constant Voltage-to-Frequency Ratio control. The rectification section of the variable frequency drive uses non-controlled rectifier. The inverter section of the variable frequency drive uses an NPC/H-Bridge five-level inverter. Simulation for the motors' start-up process and harmonic analysis during the steady state. Compared with the scheme of the underwater transformer, the underwater inverter scheme has lower costs and lower *** is suitable for power supply systems with longer submarine cables.

关键词： Underwater cables Costs Power supplies Oil insulation Variable speed drives Power system harmonics Transformers

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Effects of Active and Reactive Power control on Inertia in DFIG-Based Wind Turbines

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IEEE Transactions on Power Electronics 2025年第9期40卷 13673-13685页

作者： Guo, Xiang Tang, Qingbo Zhu, Donghai Zhou, Yini Zou, Xudong Hu, Jiabing Kang, Yong China University of Mining and Technology School of Electrical Engineering Xuzhou221116 China Hubei Key Laboratory of Marine Electromagnetic Detection and Control Wuhan430064 China Huazhong University of Science and Technology State Key Laboratory of Advanced Electromagnetic Technology School of Electrical and Electronic Engineering Wuhan430074 China

The inertia analysis for wind turbines (WTs) typically focuses on the electromechanical timescale. Active power control (APC) and phase-locked loop (PLL) are essential considerations while reactive power control (RPC) is often deemed negligible, particularly in stiff grid. However, such assumptions may be inappropriate. Therefore, this article aims to comprehensively examine the effects of APC and RPC on the inertia for doubly fed induction generator (DFIG)-based WTs. Firstly, phase motion models are developed by incorporating various combinations of control loops, including APC, RPC, and different PLL configurations. Subsequently, the impacts of the APC and RPC on the inertia are examined in detail. The analysis reveals that the APC diminishes inertia, whereas the RPC significantly enhances the inertia. Additionally, special attention should be given to phase characteristics of the inertia transfer function, as they can substantially influence inertial performance. Furthermore, an improved frequency support method is proposed, which achieves superior frequency response without necessitating the PLL bandwidth to be adjusted to extremely low values, such as 1 Hz or lower. Finally, the analysis and the proposed method are validated through experiments. © 1986-2012 IEEE.

关键词： Wind turbines

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Research on Effectiveness Evaluation Method of Acoustic detection Equipment Based on Grey Clustering

Research on Effectiveness Evaluation Method of Acoustic Dete...

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Advanced Algorithms and control Engineering (ICAACE), International Conference on

作者： Zikang Liu Wentie Yang Zuoshuai Wang Yidong Xu Yantai Research Institute Harbin Engineering University Yantai Shandong China Hubei Key Laboratory of Marine Electromagnetic Detection and Control Wuhan Second Ship Design and Research Institute Wuhan Hubei China

ISBN: (数字)9798350361445

ISBN: (纸本)9798350361452

Nowadays, marine equipment develops rapidly, especially underwater acoustic detection equipment plays an important role in resource exploration, military defense and other fields. How to evaluate the detection efficiency of acoustic detection equipment is a key issue, which can not only provide reference direction for the improvement of equipment design, but also evaluate different types of acoustic detection products under the same ocean hydrological conditions. In view of the characteristics such as small evaluation data, incomplete information and uncertainty in the evaluation process, taking sonar products as an example, this paper will introduce a gray clustering evaluation method of acoustic detection equipment effectiveness based on the combined weight method of FAHP-CRITIC and carry out a numerical example analysis.

关键词： Uncertainty control engineering Echo sounders Oceans Process control marine equipment Indexes

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Adaptive Intelligent Reconfiguration of Ship Power Network based on Improved Particle Swarm Optimization Algorithm 22

Adaptive Intelligent Reconfiguration of Ship Power Network b...

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Proceedings of the 2022 4th International Conference on Robotics, Intelligent control and Artificial Intelligence

作者： Shuai Yu Cong Peng Zhengqing Zhang Chengyang Li Hubei Key Laboratory of Marine Electromagnetic Detection and Control Wuhan Second Ship Design and Research Institute China Wuhan Institute of Marine Electric Propulsion China

ISBN: (纸本)9781450398343

Aiming at the problems of low efficiency and low intellectualization of traditional ship power network fault reconfiguration and recovery, this paper analyzed the characteristics of ship power network and the requirements of fault reconfiguration, established a mathematical model for power and importance evaluation, and presented an improved particle swarm optimization algorithm based on adaptive weights to realize intelligent power network reconfiguration. The numerical results showed that this method is superior to the traditional algorithm in the speed and fitness of fault reconfiguration, can better meet the requirements of adaptive intelligent reconfiguration of ship power network, and can effectively ensure the continuity of power supply in power system.

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Research on infrared video stabilization based on SLIC and path optimization

Research on infrared video stabilization based on SLIC and p...

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Neural Networks, Information and Communication Engineering (NNICE), International Conference on

作者： Yuyuan Peng Wentie Yang Zuoshuai Wang Yidong Xu Yantai Research Institute Harbin Engineering University Yantai China Hubei Key Laboratory of Marine Electromagnetic Detection and Control Wuhan Second Ship Design and Research Institute Wuhan China

Aiming at the technical difficulties of infrared video stabilization due to parallax changes, an infrared video stabilization algorithm based on SLIC and path optimization is proposed in the paper, which mainly includes: preprocessing, improving the accuracy of motion estimation to get the camera paths, multi-path optimization, and motion compensation. In this paper, we perform SLIC processing on infrared video, using RANSAC algorithm as well as improved k-means algorithm to process the feature points to get accurate global motion estimation, and after that, we optimize multiple camera paths to get stable infrared video after compensation. After experimental analysis, our method achieves better results compared to some other traditional methods.

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Deep Echo Cancellation Algorithm based on Time-Frequency Domain Combination

Deep Echo Cancellation Algorithm based on Time-Frequency Dom...

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Neural Networks, Information and Communication Engineering (NNICE), International Conference on

作者： Aosheng Fan Wentie Yang Zuoshuai Wang Yidong Xu Yantai Research Institute Harbin Engineering University Yantai China Hubei Key Laboratory of Marine Electromagnetic Detection and Control Wuhan Second Ship Design and Research Institute Wuhan China

Aiming at the problem that traditional acoustic echo cancellation (AEC) methods are difficult to deal with nonlinear echoes and complex echoes, this paper proposes a combined time-frequency domain AEC method, which captures the differences between inputs and outputs as well as the modelled time-series information through residual networks and gated recurrent unit (GRU) in the frequency domain and introduces a channel attention mechanism to adjust the feature weights of different channels, and then combines the outputs of the frequency-domain network in the time domain model is further optimized to improve the quality of the speech signal. The experimental results show that the evaluation scores of the proposed method are higher than those of the reference algorithm in the cases of far-end single-talk and double-talk, and it can effectively eliminate echoes.

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Weak Signal detection Algorithm Based on Multi-coupled Chaotic Oscillator

Weak Signal Detection Algorithm Based on Multi-coupled Chaot...

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IEEE/OES China Ocean Acoustics (COA)

作者： Sikai Xie Wentie Yang Zuoshuai Wang Yidong Xu Yantai Research Institute of Harbin Engineering University Yantai China Hubei Key Laboratory of Marine Electromagnetic Detection and Control Wuhan Second Ship Design and Research Institute Wuhan China

ISBN: (数字)9798350340297

ISBN: (纸本)9798350340303

Weak signal detection technology is essential for underwater target detection systems that rely on underwater acoustics. This paper focuses on enhancing the performance of such detection systems. We propose a multi-coupled chaotic oscillator based on the concept of coupling oscillators and analyze its nonlinear dynamic characteristics using phase trajectory diagrams and bifurcation diagram. Subsequently, we develop a comprehensive detection algorithm utilizing this model and refine the system with a variable scale approach. Finally, we created a simulation model to compare the performance of detection algorithms, which includes both single Duffing model and dual-coupled Duffing model, with the existing MCVPD detection algorithm.

关键词： Couplings Oceans Object detection Bifurcation Trajectory detection algorithms Underwater acoustics Oscillators Signal detection Signal to noise ratio

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Easy-Hardware-Implementation Algorithm of Carrier and Sampling Frequency Offset Estimation in OFDM Systems

Easy-Hardware-Implementation Algorithm of Carrier and Sampli...

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IEEE/OES China Ocean Acoustics (COA)

作者： Yuanhang Liu Wentie Yang Zuoshuai Wang Yidong Xu Yantai Research Institute of Harbin Engineering University Yantai China Hubei Key Laboratory of Marine Electromagnetic Detection and Control Wuhan Second Ship Design and Research Institute Wuhan China

ISBN: (数字)9798350340297

ISBN: (纸本)9798350340303

This paper analyzes the impact of residual carrier frequency offset and sampling frequency offset on the performance of orthogonal frequency division multiplexing systems. Additionally, it proposes a joint carrier and sampling frequency offset estimation algorithm in the frequency domain. The algorithm is designed for easy implementation in hardware, aiming to reduce both the utilization of hardware resources and calculation delays compared to estimation algorithms using the least squares method. Simulations were conducted based on the IEEE 802.11a standard, along with hardware implementations on the field programmable gate array to validate the algorithm. The results of actual system tests demonstrate that the algorithm effectively compensates phase offset, ensuring compliance with standard requirements.

关键词： Wireless communication OFDM Frequency-domain analysis Estimation Frequency conversion Hardware Frequency estimation Delays Frequency division multiplexing Standards

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