检索结果-内蒙古大学图书馆

A distributed control method Based on a Voltage Sensitivity Matrix in DC Microgrids With Low-Speed Communication

IEEE TRANSACTIONS ON SMART GRID 2019年第4期10卷 3809-3817页

作者： Lee, Gi-Young Ko, Byoung-Sun Cho, Jintae Kim, Rae-Young Hanyang Univ Dept Elect & Biomed Engn Seoul 04763 South Korea Korea Elect Power Corp Smart Power Distribut Lab Res Inst Daejeon 34056 South Korea

A distributed control method is proposed to improve the power sharing performance of bidirectional distributed generators (BDGs) and the voltage regulation performance of a dc bus in a dc microgrid (MG). To analyze the structural characteristics of a dc MG, voltage sensitivity analysis based on power flow analysis is presented. Based on this, a distributed control method using a voltage sensitivity matrix is proposed. The proposed method uses information received through the communication line and performs the droop gain variation method and voltage shifting method without additional controllers. This approach achieves improved power sharing and voltage regulation performance without output transient states, even at slow communication speed. The proposed method is implemented through an experimental environment consisting of two BDGs, a load, and a non-dispatchable distributed generator in a four-bus ring type model. The experimental results demonstrate improved power sharing accuracy and voltage regulation performance.

关键词： DC microgrids distributed generator distributed control method voltage sensitivity matrix

来源：评论

学校读者我要写书评

暂无评论

Noncooperative Target Finite-Time Surrounding control of Spacecraft Formation

引用

Space(Science & Technology) 2024年第1期4卷 260-270页

作者： Lifan Zhou Yanning Guo Yu Zhang Panxing Huang Pengyu Wang School of Astronautics Harbin Institute of TechnologyHarbin 150001China Beijing Institute of Control Engineering Beijing 100190China National Key Laboratory of Science and Technology on Space Intelligent Control Beijing 100190China Korea Advanced Institute of Science and Technology Daejeon 34141Republic of Korea

This paper proposes a novel distributed control method for surrounding a noncooperative target that has maneuverability by spacecraft formation.A relative orbit error dynamic model between the target and the formation is established dependent on a reference spacecraft under the 2-body *** estimate and compensate for the target’s control input rapidly,a novel finite-time extended state observer is *** is stable in the sense of fast finite-time uniformly ultimately bounded stability.A fast terminal sliding mode controller is proposed for finite-time convergence of the *** examples are implemented to show the effectiveness of proposed algorithm.

关键词： finite time surrounding control distributed control method relative orbit error dynamic model reference spacecraft spacecraft formationa estimate compensate spacecraft formation noncooperative target

来源：评论

学校读者我要写书评

暂无评论

DC Microgrid Energy Management System Containing Photovoltaic Sources Considering Supercapacitor and Battery Storages 3

DC Microgrid Energy Management System Containing Photovoltai...

引用

3rd International Conference on Smart Energy Systems and Technologies (SEST)

作者： Jarrahi, Mohammad Amin Roozitalab, Farzad Arefi, Mohammad Mehdi Javadi, Mohammad Sadegh Catalao, Joao P. S. Shiraz Univ Sch Elect & Comp Engn Shiraz Iran Politecn Milano Univ Sch Ind & Informat Engn Milan Italy Inst Syst & Comp Engn Technol & Sci INESC TEC P-4200465 Porto Portugal Univ Porto FEUP Fac Engn P-4200465 Porto Portugal

ISBN: (纸本)9781728147017

The tendency to use renewable energies in DC microgrids (MGs) has been increased in the past decades. Due to the unpredictable behavior of renewable resources, it is vital to utilize energy storage resources in the MG structure. The generation sources and storages in DC MGs should be chosen in order to meet the maximum demand in both grid-connected and islanded mode. Also, penetration of power electronic based devices is essential to connect these resources to the network. The control of these devices are another challenge in this regard. So, a proper configuration along with an efficient control approach is needed for development of DC MGs. In this paper, a new structure for DC MG is presented which includes solar photovoltaic (PV) as generation sources and supercapacitor and battery as storages. Furthermore, an innovative control method based on voltage variations is introduced for the proposed structure. It is shown that simultaneous usage of battery and supercapacitor improves the performance of the MG in handling the abrupt load changes in the both grid-connected and islanded mode operations. To evaluate the performance of the proposed structure and control algorithm, different conditions are simulated in MATLAB/Simulink software and the results are presented. The results confirm a high degree of performance for proposed structure and control method.

关键词： DC Microgrid Energy Management distributed control method Battery Storage Supercapacitor

来源：评论

学校读者我要写书评

暂无评论

Fully distributed AC Optimal Power Flow

引用

IEEE ACCESS 2019年 7卷 97594-97603页

作者： Pourbabak, Hajir Alsafasfeh, Qais Su, Wencong Univ Michigan Dept Elect & Comp Engn Coll Engn & Comp Sci Dearborn MI 48128 USA Tafila Tech Univ Dept Elect Power & Mechatron Engn At Tafilah 66110 Jordan

Optimal generation dispatch is one of the challenging problems in the field of both market and system security due to its non-convexity and uncertainty. Many solutions have been proposed in recent years to solve it by convexification and linearization. Some of these methods fail to be practical, however, due to their specific assumptions. In this paper, a fully distributed algorithm is proposed for a complete optimal power flow without any convexification or linearization. A mathematical proof for its global optimality is provided for a simple version of the optimization problem;then it is extended to consider all constraints. Finally, two test power systems, a synthetic 37-bus case study and an IEEE 118-bus test feeder considering all equality and inequality constraints is simulated to evaluate the proposed algorithm's performance.

关键词： distributed control method consensus algorithm generation dispatch

来源：评论

学校读者我要写书评

暂无评论

Decentralised secondary voltage and frequency control scheme for islanded microgrid based on adaptive state estimator

引用

IET GENERATION TRANSMISSION & DISTRIBUTION 2017年第15期11卷 3683-3693页

作者： Lou, Guannan Gu, Wei Wang, Liufang Xu, Bin Wu, Ming Sheng, Wanxing Southeast Univ Sch Elect Engn Nanjing Jiangsu Peoples R China State Grid Anhui Elect Power Corp Res Inst Hefei Anhui Peoples R China China Elect Power Res Inst Beijing Peoples R China

This study proposes a decentralised secondary voltage and frequency control based on the state estimation principle and cooperative strategy in an islanded microgrid. Following the establishment of a large signal model of microgrid, an adaptive sliding mode observer is allocated to each distributed generation unit to estimate the transient responses of the other units based on the coupling of the physical system. In this way, the proposed secondary control is implemented in a fully decentralised structure such that each distributed generation requires its own information only;unlike conventional centralised or distributed control methods, this scheme obviates any requirement for communication network and remote measurements, which leads to improved system reliability, flexibility and scalability. Simulation results are presented to verify the effectiveness of the proposed secondary control for a typical microgrid system.

关键词： distributed power generation decentralised control voltage control frequency control observers transient response distributed control decentralised secondary voltage control scheme decentralised secondary frequency control scheme islanded microgrid adaptive state estimator cooperative strategy large-signal model adaptive sliding mode observer allocation distributed generation unit transient response estimation physical system coupling distributed control method communication network system reliability system flexibility system scalability

来源：评论

学校读者我要写书评

暂无评论

A distributed Voltage Balancing method for Modular Multilevel Converter 3

A Distributed Voltage Balancing Method for Modular Multileve...

引用

3rd IEEE International Future Energy Electronics Conference / Energy Conversion Congress and Exposition (ECCE) Asia

作者： Xia, Bing Li, Yaohua Li, Zixin Xu, Fei Wang, Ping Chinese Acad Sci Inst Elect Engn Key Lab Power Elect & Elect Drive Beijing Peoples R China Univ Chinese Acad Sci Beijing Peoples R China

ISBN: (纸本)9781509051571

The great number of power modules (PMs) imposes great computational challenge on the voltage balancing of modular multilevel converter (MMC) as the sorting of the PM capacitor voltages is usually adopted. This paper presents a distributed control method for PM capacitor voltage balancing in MMC. With this method, all PMs in one arm are grouped and the sorting algorithm of the voltage balancing in each group is implemented in decentralized control unit. To keep the voltage balancing among different groups, a close-loop control system is proposed, using the average capacitor voltage of each group as the feedback. With this method, the computational load is reduced compared to the conventional method while the voltage balancing effect and the switching frequency are almost the same. Real-time experimental results on a +/- 350 kV/1000 MW MMC based on RT-LAB (OP7020 and OP5607) verify the feasibility and effectiveness of the proposed method.

关键词： modular multilevel converter capacitor voltage balancing distributed control method

来源：评论

学校读者我要写书评

暂无评论

UAVs Fleet control Design Using distributed Particle Swarm Optimization : A Leaderless Approach

UAVs Fleet Control Design Using Distributed Particle Swarm O...

引用

International Conference on Unmanned Aircraft Systems (ICUAS)

作者： Belkadi, A. Ciarletta, L. Theilliol, D. Univ Lorraine CRAN UMR 7039 BP 70239 F-54506 Vandoeuvre Les Nancy France CNRS CRAN LAIR 7039 F-75700 Paris France Madynes Res Team Loria UMR 7503 Nancy France Univ Lorraine MinesNancy Vandoeuvre Les Nancy France

ISBN: (纸本)9781467393331

This paper concerns a distributed control approach of a fleet of Unmanned Aerial Vehicles (UAVs) based on a Leaderless strategy. The independent distributed particle swarm Optimization algorithms are used to develop this approach. The goal is to get a set of UAVs to fly on a 2D plane while converging to a predefined spatial configuration around a rendezvous point. The developed method would be applied to solve problems such as covering large search areas for surveillance, inspection and rescue. The method is tested in simulation on a fleet of UAVs. Test results for various cases are presented.

关键词： distributed control method PSO algorithm Leaderless strategy generating path

来源：评论

学校读者我要写书评

暂无评论

distributed Urban Traffic Signal control Based on Spontaneous Synchronization

Distributed Urban Traffic Signal Control Based on Spontaneou...

引用

IEEE International Conference on Intelligent Transportation Systems

作者： Jia WU Fei YAN Ping KUANG Sch. of Inf. & Software Eng. Univ. of Electron. Sci. & Technol. of China Chengdu China

ISBN: (纸本)9781479960798

This paper presents a distributed control method for traffic control at urban traffic network. This method is inspired from spontaneous synchronization. Synchronization is a prevalent phenomenon in nature that a group of objects spontaneously come into co-occurrence with a common rhythm by mutual interactions. The mechanism of synchronization allows controlling of complex processes by simple operations based on interactions between objects. Thus, each traffic signal system at intersections is modeled as a phase-oscillator. By synchronizing these oscillators, the desired global coordination can be achieved. The experiment results show that the proposed method is flexible, adaptive, and robust for the large-scale traffic control.

关键词： distributed control road traffic control synchronisation distributed control method distributed urban traffic signal control phase-oscillator model spontaneous synchronization synchronization phenomenon traffic signal system Conferences Intelligent transportation systems

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：