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8th International Conference on Traffic Engineering and Transportation System, ICTETS 2024

作者： Gu, Haoran Yin, Yong Jing, Qianfeng Key Lab. of Marine Simulation and Control Dalian Maritime University Liaoning Dalian116026 China

ISBN: (数字)9781510686298

ISBN: (纸本)9781510686281

To address the challenges of conducting experiments with unmanned boats under high sea conditions, a digital twin simulation experiment platform has been designed for performance testing of unmanned boat sensory equipment based on Unity and the Robot Operating System (ROS) architecture. This platform is intended to facilitate the rapid verification of performance simulation algorithms for unmanned boat LiDAR and other sensory equipment. The platform features a parametrically controlled simulation environment that can easily generate diverse sea conditions, meeting the requirements for sensory equipment under complex experimental scenarios. It enables comparative validation of the performance of commonly used unmanned boat sensors, including cameras and LiDAR, through simulation algorithms. The results demonstrate that the same sensing algorithms produce consistent results in both real and simulated environments. Consequently, data from the simulation environment can effectively validate the effectiveness and robustness of the unmanned boat sensing module in high sea states, providing an efficient experimental framework for addressing the challenges of high-sea-state experiments with unmanned boats. © 2024 SPIE.

关键词： Robot Operating System

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Energy Consumption Evaluation of an Electric Vehicle Under Different Driving Conditions 7

Energy Consumption Evaluation of an Electric Vehicle Under D...

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7th International Conference on Power and Energy Engineering, ICPEE 2023

作者： Sun, Long An, Xiaopan Geng, Peilin Geng, Yu Co. Ltd. Tianjin China Jilin University State Key Lab. of Automotive Simulation and Control Changchun China

ISBN: (纸本)9798350381146

The range of electric vehicles is a key concern of users, and there is still a certain gap between the current actual mileage and the prediction results, so it is of great significance to study whether the prediction method obtained under one standard working condition can be applied to other working conditions. This paper takes the data tested under different working conditions as the basic sample, divides the EV driving data into a number of kinematic segments, and proposes a method to evaluate the energy consumption of EVs by taking into account the relevant factors affecting the energy consumption of electric vehicles during the driving process. The results show that the independent energy consumption features obtained by the method proposed in this paper can characterize the energy consumption of electric vehicles under different driving conditions. Therefore, the method proposed in this paper provides a basis for a possible alternative mechanism for expanding the scope of EV energy consumption assessment. © 2023 IEEE.

关键词： Energy utilization

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Global Fast Terminal Sliding Mode control for Path Following of Ultra Large Underactuated Ship Based on Predictive Los Guidance

SSRN

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SSRN 2023年

作者： Zhang, Hugan Zhang, Xianku Gao, Shihang Han, Xu Ma, DaoCheng Key Lab. of Marine Simulation and Control Navigation College Dalian Maritime University Dalian116026 China

This article proposes a new LOS guidance method based on position prediction, which constructs the total path deviation by predicting the future time position of ships. It can solve the problem of overshoot that is prone to occur in the path following process of ultra large underactuated ships. Use global fast terminal sliding mode to design controllers that allow path deviations to converge in finite time. In order to solve the problems of unknown speed, disturbance, and sideslip angle during navigation, a high-order nonlinear observer is designed to estimate the system states, obtaining the velocity values and external disturbances. By estimating the velocity, the ship's sideslip angle during navigation is obtained. So the problem of unknown sideslip angle is solved, and finally, the effectiveness of the proposed algorithm was verified through simulation experiments. © 2023, The Authors. All rights reserved.

关键词： Ships

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Economic Comparison of Photovoltaic Energy Storage Systems for Different Load Profiles: A Case Study 3

Economic Comparison of Photovoltaic Energy Storage Systems f...

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3rd Power System and Green Energy Conference, PSGEC 2023

作者： Huang, Jianling Meng, Fanzhuo Jiao, Mingyue Institute Tsinghua University Sichuan Energy Internet Research Chengdu China Simulation and Control Jilin University State Key Lab. of Automotive Changchun China

ISBN: (纸本)9798350340099

Photovoltaic energy storage systems(PV ESS), which use energy storage to address the intermittent nature of PV, have been developed to utilize PV more efficiently to lower grid carbon emissions and to mitigate the peak load pressure of distribution network. Due to the significant temporal impact of photovoltaic, the operation of photovoltaic energy storage systems might highly related to the temporal characteristics of the given load profile;however, there is lack of research on the economic impact of the load profiles on the photovoltaic energy storage systems. To fill this gap, an economic comparison is conducted to evaluate the cost-benefit of photovoltaic energy storage systems for different load profiles from a perspective of large industrial consumers in this paper. A method for sizing the capacity of photovoltaic and energy storage based on a given load profile is proposed, and an economic evaluation model considering the cost-benefit of the investment and operation of photovoltaic and energy storage system, as well as the reduction of distribution transformer capacity is proposed. The proposed model is implemented to two typical load profiles in a case study, and the results show the importance of load shapes for matching PV energy storage systems. © 2023 IEEE.

关键词： Energy storage

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Trajectory Tracking control of Uuvs Based on the Ppg Method with Disturbance Observer

SSRN

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SSRN 2023年

作者： Zhang, Hugan Zhang, Xianku Key Lab. of Marine Simulation and Control Navigation College Dalian Maritime University Dalian116026 China

In order to solve the problems of environment disturbances and model parameter perturbation in under actuated Underwater Vehicles (UUVs) trajectory tracking control, a Sliding mode control algorithm based on projected perpendicular guidance (PPG) is proposed in this paper. Firstly, by simplifying the six degrees of freedom UUVs model, a model suitable for trajectory tracking controller design is obtained. Secondly, a novel type of PPG method is proposed, and a virtual control law is designed to convert the trajectory tracking control into speed control and heading control, and the sliding mode controller is used to control the speed, heading and depth. Due to the susceptibility of UUVS to external environmental disturbances and model parameter perturbations during trajectory tracking, a disturbance observer is used to estimate the disturbance and feedback it into the controller design. Finally, the effectiveness of the proposed algorithm is verified through simulation of linear and curve trajectories respectively. © 2023, The Authors. All rights reserved.

关键词： Trajectories

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A Stochastic Resource Management Scheme for Multi-Energy Group control System 3

A Stochastic Resource Management Scheme for Multi-Energy Gro...

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3rd IEEE International Conference on Power, Electronics and Computer Applications, ICPECA 2023

作者： Ding, Ran Sun, Rongfu Geng, Yan Yao, Yiming Zhao, Ergang Xu, Lina State Grid Jibei Electric Power Company Limited Beijing China Tsinghua University State Key Lab. of Control and Simulation of Power System and Generation Equipment Dept. of Electrical Engineering Beijing China

ISBN: (纸本)9781665472784

The interaction between various energy supply systems (cold, heat, electricity, gas, etc.) is becoming more tightly coupled as social economy and technology advance. Multi-energy systems are ineffective because different types of energy systems run independently. In order to protect the data privacy of each sub-system, this research suggests an ideal resource management framework for a multi-energy group control system. The energy hub (EH) paradigm is first suggested. When deploying EHs, the physical constraints of various energy systems are taken into account. Through scenario-based stochastic programming, the uncertainties of renewable energy are considered. According to the leader-follower relationship between multi-energy group control system operators and energy hub operators (EHOs), Benders decomposition is applied to decentralize the decision-making process. Finally, an example is given to illustrate the effectiveness of the proposed model and algorithm. © 2023 IEEE.

关键词： Data privacy

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Identification Modeling of Ship Nonlinear Motion Based on Nonlinear Innovation

SSRN

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SSRN 2022年

作者： Meng, Yao Zhang, Xianku Zhang, Xiufeng Key Lab. of Marine Simulation and Control Navigation College Dalian Maritime University Dalian116026 China

In order to further improve the accuracy of parameter identification of ship nonlinear motion mathematical model, grey wolf optimizer-support vector regression (GWO-SVR) is embedded into the nonlinear innovation processed by hyperbolic tangent function. A novel identification scheme called nonlinear innovation GWO-SVR(NGWO-SVR) is proposed for identification of ship nonlinear motion model. Based on the full-scale trial data of vessel YUKUN, the NGWO-SVR is used to identify the parameters of the nonlinear motion mathematical model. Using full-scale trial data different from the identified samples, the generalization of the parameters obtained from SVR, GWO-SVR and NGWO-SVR are verified. From the evaluation criteria of the prediction results, the parameters identified by the proposed algorithm are more generalized under the condition of effectiveness of certain accuracy. The research results can provide a priori characteristics for intelligent ship motion control and path planning and a reference scheme for the optimization of ship motion mathematical model in marine simulator. © 2022, The Authors. All rights reserved.

关键词： Parameter estimation

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Energy storage system participates in frequency modulation control and capacity balance strategy of power system 5

Energy storage system participates in frequency modulation c...

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5th IEEE International Electrical and Energy Conference, CIEEC 2022

作者： Wang, Zhenyang Zhai, Wenchao Yan, Gangui Zhao, Yue Cui, Youshi Jia, Xihao Northeast Electric Power University Dept. Min. of Educ. Key Lab. of Modern Power System Simulation Control and Green Power Technology Jilin China

ISBN: (数字)9781665411042

ISBN: (纸本)9781665411042

The grid-connected wind power generation leads to frequent frequency safety problems in the system, and new primary frequency modulation measures are urgently needed. In order to ensure the economy and safety of power grid operation, it is necessary to conFigure energy storage system for wind farm. In this paper, the control strategy is designed to use energy storage for primary frequency modulation. At present, the SOC imbalance of internal battery components is common in energy storage batteries. Therefore, this paper proposes an adjustable capacity proportional equalization control algorithm based on the current capacity of energy storage batteries. According to the different SOC of each battery component of energy storage batteries and its operating state (charge and discharge), it determines how to reasonably distribute the power deviation signal generated by frequency modulation to each energy storage battery component, so that the energy storage battery can not only support the frequency adjustment of power grid, but also improve its own SOC imbalance. Finally, based on EMTDC/PSCAD simulation model, the effectiveness of this method is verified. simulation results show that this method can effectively balance the system SOC. © 2022 IEEE.

关键词： Frequency modulation

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3D Visualization of Chart Scenery Based on OSG 20

3D Visualization of Chart Scenery Based on OSG

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4th International Conference on Computer Science and Application Engineering, CSAE 2020

作者： Song, Jinming Liu, Xiuwen Gao, Peng Key Lab. of Marine Simulation and Control Dalian Maritime University Dalian China

ISBN: (纸本)9781450377720

The study aims to explore the safety of ship navigation, in view of 3D (three-dimensional) visualization of navigation mark and of seabed topography. The main contribution lies in two aspects. One is for 3D visualization of aids to navigation, the other is for 3D visualization of seabed topography. From the electronic chart and S-57 data, the shape, color, top mark and luminous characteristics of the navigation mark are extracted. Compared with the previous methods, the simulation on Visual Studio shows that the 3D scene can provide more visual and clear information to the ships. The depth data of electronic chart is extracted and processed, and then the irregular triangular grid is constructed by Delaunay triangular grid method. The two aspects of study, mainly use the corresponding data information to complete the goal of building 3D scene automatically and quickly. © 2020 ACM.

关键词： Ships

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Three-Dimensional Optimal Trajectory Tracking control of Underactuated Autonomous Underwater Vehicles Using Double Closed-Loop control 5

Three-Dimensional Optimal Trajectory Tracking Control of Und...

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5th International Conference on Intelligent Autonomous Systems, ICoIAS 2022

作者： Gong, Huibin Joo, Meng Liu, Tianhe Zhao, Xudong Institute of Artificial Intelligence and Marine Robotics College of Marine Electrical Engineering Dalian Maritime University Dalian China Dalian University of Technology Key Lab. of Intelligent Control and Optimization for Industrial Equipment of Ministry of Education Dalian China

ISBN: (数字)9781665498388

ISBN: (纸本)9781665498388

In this paper, a double closed-loop control method is proposed for three-dimensional optimal trajectory tracking control of underactuated autonomous underwater vehicles (AUVs), Firstly, a five-degree-of-freedom mathematical model of under-Actuated AUV is established. Secondly, an output redefinition method is adopted to solve underactuated control problem. On this basis, a backstepping method is utilized to design the outer-loop controller where virtual velocity is derived using the error between input and output of the system. Next, an adaptive dynamic programming method is used to design the inner-loop controller, where the performance index function containing the disturbance upper bound is set, and a neural network is employed to solve the Hamilton-Jacobi-Bellman equation online. Finally, the Lyapunov theorem is used to establish that all signals of the closed-loop system are uniformly ultimately bounded. simulation results demonstrate the effectiveness of the proposed method. © 2022 IEEE.

关键词： Autonomous underwater vehicles

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