A decentralized control method for series connected PV battery hybrid microgrid

Author(s):  
Yiwei Pan ◽  
Chenghui Zhang ◽  
Shuai Yuan ◽  
Alian Chen ◽  
Jinwei He
Author(s):  
Quốc Dũng Phan ◽  
Phu Cong NGUYEN ◽  
Phuoc Hoa TRUONG ◽  
Dinh Tuyen NGUYEN ◽  
Duc Hung NGUYEN ◽  
...  

The interlinking converters is one of the important components in the hybrid mirogrid system, the study of structure and control method of the interlinking converters in hybrid mirogrid has been implemented and achieved positive results. This paper proposes an improved decentralized control of level-shifted carrier-based PWM for a modular multilevel interlinking converter (IC-MMC) in standalone hybrid microgrid (HMG-Hybrid Microgrid). Main research objectives is to study the capability of the decentralized control method proposed for the IC-MMC unit when performing the power exchange control task between the DC and AC bus in the HMG system, increased flexibility in controls. Furthermore, the proposed control method for IC-MMC for HMG is also verified in term of dynamically reconfiguration when changing the number of modules in the MMC when the improve of system reliability is needed. The feasibility of the carrier level shift control method for IC-MMC in HMG has been verified by simulation model on MATLAB/Simulink software to evaluate the ability to exchange power between the DC bus and the AC bus.


Robotica ◽  
2005 ◽  
Vol 24 (2) ◽  
pp. 229-237 ◽  
Author(s):  
Jae H. Chung ◽  
Changhoon Kim

This paper discusses the modeling and control of a robotic manipulator with a new deburring tool, which integrates two pneumatic actuators to take advantage of a double cutting action. A coordination control method is developed by decomposing the robotic deburring system into two subsystems; the arm and the deburring tool. A decentralized control approach is pursued, in which suitable controllers were designed for the two subsystems in the coordination scheme. In simulation, three different tool configurations are considered: rigid, single pneumatic and integrated pneumatic tools. A comparative study is performed to investigate the deburring performance of the deburring arm with the different tools. Simulation results show that the developed robotic deburring system significantly improves the accuracy of the deburring operation.


2013 ◽  
Vol 336-338 ◽  
pp. 595-598
Author(s):  
Xia Chen ◽  
Chong Zhang

Decentralized control method of multi-uav arriving at the same time is a typical control problem. This paper considers the above problem and presents a decentralized control method. Considering the dynamics and uncertainty of the battlefront, and the feature of the uav, according to the different starting point, flying orientation, and distance, established the algorithm model of the velocity and direction of uav under the influence of wind, presenting a decentralize control method of multi-uav arriving at the same time under the influence of wind. Simulation results are presented to demonstrate the effectiveness, robustness, flexibility of the approach.


2012 ◽  
Vol 182-183 ◽  
pp. 1200-1205
Author(s):  
Ye Nan Hu ◽  
Fu Chun Sun

A multi-objective robust decentralized control method is proposed for the interconnected fuzzy singularly perturbed models. Such decentralized controller can guarantee the whole closed-loop system is asymptotically stable even when the multi-time-scale subsystems are interactional. Besides, the disturbance attenuation performance, dynamic performance and control amplitude can be optimized synthetically. The simulations illustrate the effectiveness of the proposed method.


Author(s):  
Ahmad F. Taha ◽  
Ahmed Elmahdi ◽  
Jitesh H. Panchal ◽  
Dengfeng Sun

The network disturbance effect can be considered as either a perturbation or as a pure time delay for the exchanged signals. The network-induced time delay is one of the main challenges when a network is inserted in the feedback loops of a control system. In this paper, our objective is to improve the behavior of a Networked Control System (NCS) by analyzing the time-delay given that the decentralized control design method is adopted. First, we review an observer-based control method for decentralized control systems. Second, we establish a map between the decentralized non-networked system, and the typical NCS state-space representation. The main idea the mapping is to put the Decentralized Networked Control System (DNCS) in a general form and then map the resulting system to the typical NCS form. Third, we derive the global dynamics of the DNCS. Fourth, an upper bound for the time-delay is derived that guarantees the stability of LTI DNCSs. Finally, we present a numerical example that illustrates the applicability of the derived bound.


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