检索结果-内蒙古大学图书馆

Journal of Network Intelligence 2024年第4期9卷 2621-2641页

作者： Yan, Ren-Wu Fu, Fu-Wei Liu, Yun-Zhang Yu, Ning Zhang, Zhi-Hong College of Electronic Electrical and Physics Engineering Research Center for Smart Grid Simulation Analysis and Integrated Control Fujian University of Technology Fuzhou350118 China Department of Computing Sciences State University of New York Brockport College NY14420 United States

Currently, modular multilevel converter-based flexible direct current transmission technology (MMC-HVDC) is the prevalent method for connecting long-distance offshore wind farms (OWF) to large power grid systems. Due to unique meteorological conditions at sea and the utilization of substantial wind turbines, offshore doubly-fed wind turbines possess a higher axial elastic coefficient compared to their onshore counterparts. When linked to the grid via MMC-HVDC, two types of sub-synchronous oscillations oc-cur: natural torsional vibrations within the wind turbine shafting and sub-synchronous oscillations resulting from interactions between the wind turbine and devices in the MMC-HVDC converter control system. To address these issues, a MMC-HVDC grid connection model for offshore long-distance doubly-fed wind farms has been developed. A cloud computing platform-based wind farm data acquisition system is employed for remote wind turbine data collection. Eigenvalue analysis and participation factors are utilized to determine oscillation modes and corresponding strongly correlated state variables arising from interactions between wind turbine shaft torsional vibration and converter devices. Upon identifying the correlations of state variables, a suppression strategy involving a circulating current suppression DC control collaborative virtual resistance controller is proposed to mitigate sub-synchronous oscillations. The efficacy of the suggested suppression approach is validated using PSCAD/EMTDC electromagnetic transient simulation software. © 2024, Taiwan Ubiquitous Information CO LTD. All rights reserved.

关键词： Eigenvalues and eigenfunctions

来源：评论

学校读者我要写书评

暂无评论

Cascading Fault Prevention control Strategy Considering Safety and Economy Based on UPFC

Journal of Network Intelligence

引用

Journal of Network Intelligence 2025年第2期10卷 1209-1222页

作者： Deng, Hui-Qiong Cui, Jing-Hao Smart Grid Simulation Analysis and Integrated Control Fujian Province Engineering Research Center Fujian University of Technology Fuzhou350118 China

Aiming at the problem of cascading fault caused by branch circuit interruption in the power system, and considering the limitation of only adjusting the generator output to prevent cascading fault, a cascading fault prevention control strategy based on unified power flow controller (UPFC) is proposed, which considers safety and economy. First, a cascading fault prevention control model for power systems with UPFC is proposed by selecting the safety margin index of the system by combining the operating cost of power system generation, the investment cost of UPFC and the power flow model of UPFC. A method of UPFC siting considering cascading fault prevention is proposed. The voltage phase angle and amplitude increment expressed by the UPFC control target are derived by formula, and then the sensitivity of the safety margin index to the UPFC control variable is obtained. Based on this, the installation location of UPFC is selected. Finally, the IEEE-39 bus system data is selected in MATLAB software for simulation and analysis. The simulation results show the economy and effectiveness of the predictive control strategy. © 2025 J. Network Intell. All rights reserved.

关键词： MATLAB

来源：评论

学校读者我要写书评

暂无评论

analysis of synchronous oscillation of MMC-HVDC in offshore wind farm

Analysis of synchronous oscillation of MMC-HVDC in offshore ...

引用

2022 International Conference on Renewable Energy and Electrical Technology, ICREET 2022

作者： Yan, Renwu Fu, Fuwei College of Electronic Electrical and Physics Fujian Prov. Univ. Eng. Research Center for Smart Grid Simulation Analysis and Integrated Control Fujian University of Technology Fuzhou350118 China

Due to the special meteorological conditions of offshore wind power generation and the large wind turbines used, offshore doubly-fed wind turbines have larger shafting elastic coefficients than onshore doubly-fed wind turbines. When the offshore wind farm is connected to the grid through MMC-HVDC, two kinds of sub-synchronous oscillations are caused. One is the natural torsional vibration of the wind turbine shaft system, and the other is the sub-synchronous oscillation caused by the interaction between the wind turbine and the devices in the MMC-HVDC converter control system. In view of the above problems, the MMC-HVDC grid connection model of the offshore doubly-fed wind farm is established. The eigenvalue analysis method and participation factor are used to identify the oscillation mode of the interaction between the wind turbine shafting torsional vibration and the converter device, as well as the corresponding strong correlation state variables. According to the correlation of the state variables obtained, the parameter suppression strategy of the CCSC controller based on MMC valve optimization is proposed. The effectiveness of the proposed suppression strategy is verified by PSCAD/EMTDC electromagnetic transient simulation software. © Published under licence by IOP Publishing Ltd.

关键词： Offshore wind farms

来源：评论

学校读者我要写书评

暂无评论

Improved Droop control of Independent Optical Storage DC Microgrid 6

Improved Droop Control of Independent Optical Storage DC Mic...

引用

6th IEEE Conference on Energy Internet and Energy System Integration, EI2 2022

作者： Yan, Renwu Zhang, Fulin Jiang, Xueer Zheng, Yang Lin, Yihan Fujian University of Technology Smart Grid Simulation & Analysis and Integrated Control School of Electronic Electrical Engineering and Physics Fujian Colleges and Universities Engineering Research Center Fuzhou350118 China Fujian University of Technology School of Electronic Electrical Engineering and Physics Fuzhou350118 China

ISBN: (纸本)9798350347159

With the development of DC load, the DC microgrid is expected to become the mainstream topology of future distribution networks. To solve the problem of DC bus voltage stability of microgrid caused by complex disturbances such as intermittent energy and random load switching of photovoltaic DC microgrid, this paper first establishes the corresponding mathematical model based on the volt-ampere characteristics of DC microgrid and uses the characteristics of energy storage system to develop an adaptive droop control strategy to ensure that the bus voltage is constant. MATLAB / Simulink simulation examples and experimental tests verify the feasibility and effectiveness of the proposed method. © 2022 IEEE.

关键词： Energy storage

来源：评论

学校读者我要写书评

暂无评论

Migration and Reproduction Algorithm and Its Application in Hierarchical Coordinating Economic Dispatching of Multi-microgrid System 6

Migration and Reproduction Algorithm and Its Application in ...

引用

6th IEEE Conference on Energy Internet and Energy System Integration, EI2 2022

作者： Yan, Renwu Liu, Yunzhang FuJian University of Technology College of Electronic Electrical and Physics Fujian Provincial University Engineering Research Center for Smart Grid Simulation Analysis and Integrated Control Fuzhou350118 China FuJian University of Technology College of Electronic Electrical and Physics Fuzhou350118 China

ISBN: (纸本)9798350347159

The optimal operation of multi- microgrid system is the basis to ensure the economic and environmental benefits of microgrid operation. For diverse equipment and discrepant load in every micro-grid, the paper proposes a new versatile optimization called Migration and Reproduction Algorithm (MARA), which can be used to solve coordinated dispatching for multi-microgrids system. On the coordinated dispatching strategy model during off-peak periods for multi-microgrid system, simulation results showed that the proposed algorithm can realize that the multi-microgrids system coordinated dispatching more efficient and economic. Meanwhile, Compared with Grey Wolf Optimizer (GWO) and Harris hawks optimization (HHO), the proposed algorithm is proven with faster convergence speed and better optimization ability. © 2022 IEEE.

关键词： Electric load dispatching

来源：评论

学校读者我要写书评

暂无评论

Active Prevention and control Against Power grid Cascading Tripping Considering Pumped Storage Participation

SSRN

引用

SSRN 2024年

作者： Deng, Hui-Qing Wu, Hui Liang, Zhi-Wei Zheng, Pang-Rong Shen, Junfu School of Electronic Electrical Engineering and Physics Fujian University of Technology Fujian Province Fuzhou350118 China Fujian University Engineering Research Center for Simulation Analysis and Integrated Control of Smart Grid Fujian Province Fuzhou350118 China

The increase in risk factors for triggering cascading trips in new power systems dominated by clean renewable energy sources. Aiming at this problem, an active prevention and control against grid cascading tripping considering pumped storage participation is proposed. The pumped storage characteristics are utilized to cooperate with thermal power units to participate in system regulation and control to ensure the safe and reliable operation of the power grid. The proposed model consists of two phases: the first phase is the day-ahead decision-making phase, which synergistically optimizes thermal power units and pumped storage to improve the flexibility of grid operation;the second phase is the intra-day adjustment phase, which considers the uncertainty of the wind - photovoltaic and transmission line failure outage to enhance the robustness of the power system to cope with risky scenarios. This model employs a column and constraint generation algorithm to solve the two-phase, three-layer optimization problem to minimize the adjustment cost of the grid under the riskiest scenarios. © 2024, The Authors. All rights reserved.

关键词： Electric lines

来源：评论

学校读者我要写书评

暂无评论

Safety Optimal Scheduling of Wind-Pumped-Hydro-Thermal Based on Branch L-1

SSRN

引用

SSRN 2023年

作者： Deng, Huiqiong Wu, Hui Zhong, Yunheng Tong, Zhe Shen, Junfu School of Electronic Electrical Engineering and Physics Fujian University of Technology Fuzhou350118 China Fujian University Engineering Research Center for Simulation Analysis and Integrated Control of Smart Grid Fuzhou China

Aiming at the security problem of coordinated operation of multi-energy complementary systems in regional power grids, a coordinated scheduling strategy for wind, pumped storage, hydro, and thermal power is proposed to consider the power grid's security level. Firstly, from the security level, the coordinated scheduling model of wind, pumped storage, hydro, and thermal power is constructed to maximize clean energy consumption and optimize the smoothness and economy of thermal power units. Secondly, according to each power source's flexibility, cleanliness, and complementarity, a multi-objective solution strategy of "segmentation-sequence-security" is proposed to realize the optimal output of each energy source at each stage. Finally, the safety level of the grid under the initial fault scenario and the corresponding preventive control strategies are investigated to improve the overall safety margin of the system. The simulations under different methods, dispatch models, and periods show that the proposed model can optimize wind, pumped storage, hydro, and thermal power operating characteristics, effectively improve the grid's safety under the initial fault scenario, and maximize the comprehensive efficiency of multi-energy complementarity. © 2023, The Authors. All rights reserved.

关键词： Multiobjective optimization

来源：评论

学校读者我要写书评

暂无评论

research on Site Selection Method of Battery Energy Storage System Based on Critical CutSet Identification

Research on Site Selection Method of Battery Energy Storage ...

引用

2021 International Conference on Energy, Power and Electrical engineering, EPEE 2021

作者： Zeng, Jingjie Li, Peiqiang Zhang, Zhongkai Liu, Xinke Fujian University of Technology School of Electronic Electrical Engineering and Physics Fuzhou China Fujian Provincial University Engineering Research Center for Smart Grid Simulation Analysis and Integrated Control Fuzhou China

Under different operating conditions, the influence of energy storage battery on the power grid is different, and the location and capacity determination methods are also different. Therefore, how to scientifically and reasonably select the location is of great significance. This paper proposes a candidate set identification method for the most vulnerable branch and critical cut set of power system transient stability based on branch potential energy, and uses the improved comprehensive index to identify the critical cut set. This method does not need to wait for the end of time domain simulation to determine the most vulnerable lines and critical cut sets, thus providing the basis for the location of battery energy storage system (BESS). Through the power system comprehensive analysis program (PSASP) simulation, the accuracy of theoretical analysis and engineering practicability are verified. © 2021 Institute of Physics Publishing. All rights reserved.

关键词： Location

来源：评论

学校读者我要写书评

暂无评论

Safety analysis Method Considering Cascading Trips Based on Particle Swarm Optimization 3rd

Safety Analysis Method Considering Cascading Trips Based on ...

引用

3rd International Conference on Wireless Communications and Applications,ICWCA 2019

作者： Deng, Hui Qiong Lin, Xing-Ying Wu, Peng-Peng Li, Qin-Bin Li, Chao-Gang School of Information Science and Engineering Fujian University of Technology Fujian350118 China Fujian Provincial University Engineering Research Center of Smart Grid Simulation Analysis and Integrated Control Fujian350118 China

ISBN: (纸本)9789811556968

View of preventing cascading trips, this paper mainly studies the security level model of how to effectively prevent cascading failures in the system is studied. First of all, from the point of view of relay protection, we consider the case of backup protection for current protection, by judging the electrical distance between the operating parameters of the branch and the relay protection fixed value after the initial fault of the system, it can be judged whether the branch will undergo cascading trips or not. Then, considering the critical state of cascading trips in branch grids, a safety index is proposed to measure the shortest distance between the critical state of power grids and the current operation state, and the specific calculation method is given. Finally, an optimization model is given, which aims to find the nearest state on the boundary from the current operation state. Aiming at this model, this paper presents a solution method based on PSO algorithm, which is verified by simulation through an example analysis. © 2021, Springer Nature Singapore Pte Ltd.

关键词： Particle swarm optimization (PSO)

来源：评论

学校读者我要写书评

暂无评论

A Method for Restraining Cascading Trip Based on Node Power 3rd

A Method for Restraining Cascading Trip Based on Node Power

引用

3rd International Conference on Wireless Communications and Applications,ICWCA 2019

作者： Deng, Hui-Qiong Wu, Peng-Peng Lin, Xing-Ying Li, Qin-Bin Li, Chao-Gang Shi, Zhi-Han School of Information Science and Engineering Fujian University of Technology Fujian350118 China Fujian Provincial University Engineering Research Center of Smart Grid Simulation Analysis and Integrated Control Fujian350118 China Xiamen University of Technology Fujian361024 China

ISBN: (纸本)9789811556968

With the continuous development of the smart wireless communications, the importance of electric energy becomes increasingly evident. Intricately interconnected power grids will also suffer from the threats of blackouts caused by grid cascading failure while bringing convenience to the masses. The grid cascading trip is closely related to cascading failure. Generally, the cascading failure shows a cascading trip at early stage. Hence, the avoidance of occurrence of cascading trip at an early stage may restrain the occurrence of complex cascading failure, thereby avoiding the occurrence of the blackout. In this paper, the occurrence principle of the cascading trip is firstly analyzed from the perspective of relay protection. The output of the generator is taken as the optimization variable, and the optimization model for restraining the grid trip is presented. Finally, the example of IEEE14 node system is analyzed in this paper in combination with the particle swarm algorithm, which verifies the rationality of the proposed method. © 2021, Springer Nature Singapore Pte Ltd.

关键词： Relay protection

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：