Power Optimizing of Solar Photovoltaic Systems

2012 ◽  
Vol 466-467 ◽  
pp. 272-276
Author(s):  
Dao E Qiao ◽  
Xiao Li Xu
Keyword(s):  
Control System ◽  
Distributed Control ◽  
Power Output ◽  
Reference Voltage ◽  
Energy Yield ◽  
Solar Photovoltaic ◽  
Distributed Control System ◽  
Monitoring And Control ◽  
Pv Systems ◽  
Pv Module

Efficient energy yield is a major concern in solar photovoltaic (PV) systems. This paper describes a distributed control system to optimize the power output of the PV systems. The PV systems contain many PV modules. And every PV module has a monitoring and control network node. The communication data are successfully transmitted using a low-cost ZigBee wireless network. The field conditions are monitored by voltage, current, irradiance, and temperature sensors. The power operating point tracking is implemented at the PV module level. The reference voltage is calculated based on a neural network model, which is used to identify maximum power point. And the output voltage is regulated by a digital controller in the integrated converter according to the reference voltage. Experiments show that the power output can be greatly increased with this distributed control system under many shadow conditions.

Serial Communication of PC and SCM in Distributed Control System

2012 ◽  
Vol 157-158 ◽  
pp. 1582-1585
Author(s):  
Lian Min Cao ◽  
Qing Liang Zeng ◽  
Xing Yuan Xiao ◽  
Xin Zhang
Keyword(s):  
Control System ◽  
Distributed Control ◽  
Low Cost ◽  
Serial Communication ◽  
Distributed Control System ◽  
Monitoring And Control ◽  
Collection System ◽  
Monitoring And Control System ◽  
Communication Method ◽  
And Control

The application of MSComm widget has achieved serial communication of personal computer and sing-chip micyoco in distributed control system. This communication method has the characteristics of low cost, simple hardware connecting and software designing and convenient operation. It can fulfil the need of serial communication. The serial communication has some valuable reference for monitoring and control system in industry and data collection system.

Capture Strategy Based on a Distributed Control System for a Large-scale Space End-Effector

ROBOT ◽  
2011 ◽  
Vol 33 (4) ◽  
pp. 434-439 ◽  
Author(s):  
Dangyang JIE ◽  
Fenglei NI ◽  
Yisong TAN ◽  
Hong LIU ◽  
Hegao CAI
Keyword(s):  
Control System ◽  
Distributed Control ◽  
Large Scale ◽  
Scale Space ◽  
Distributed Control System ◽  
End Effector

scholarly journals Structure of distributed control system in Seimei telescope

2021 ◽  
pp. 1-8
Author(s):  
Ichiro Jikuya ◽  
Daichi Uchida ◽  
Masaru Kino ◽  
Mikio Kurita ◽  
Katsuhiko Yamada
Keyword(s):  
Control System ◽  
Distributed Control ◽  
Distributed Control System

scholarly journals A Simple Mismatch Mitigating Partial Power Processing Converter for Solar PV Modules

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2308
Author(s):  
Kamran Ali Khan Niazi ◽  
Yongheng Yang ◽  
Tamas Kerekes ◽  
Dezso Sera
Keyword(s):  
Experimental Tests ◽  
Energy Yield ◽  
Power Electronic ◽  
Solar Pv ◽  
Partial Shading ◽  
Loss Analysis ◽  
Pv Systems ◽  
Pv Module ◽  
Pv Modules ◽  
In Series

Partial shading affects the energy harvested from photovoltaic (PV) modules, leading to a mismatch in PV systems and causing energy losses. For this purpose, differential power processing (DPP) converters are the emerging power electronic-based topologies used to address the mismatch issues. Normally, PV modules are connected in series and DPP converters are used to extract the power from these PV modules by only processing the fraction of power called mismatched power. In this work, a switched-capacitor-inductor (SCL)-based DPP converter is presented, which mitigates the non-ideal conditions in solar PV systems. A proposed SCL-based DPP technique utilizes a simple control strategy to extract the maximum power from the partially shaded PV modules by only processing a fraction of the power. Furthermore, an operational principle and loss analysis for the proposed converter is presented. The proposed topology is examined and compared with the traditional bypass diode technique through simulations and experimental tests. The efficiency of the proposed DPP is validated by the experiment and simulation. The results demonstrate the performance in terms of higher energy yield without bypassing the low-producing PV module by using a simple control. The results indicate that achieved efficiency is higher than 98% under severe mismatch (higher than 50%).

Fibre Optic Highway Based Distributed Control System

1993 ◽  
Vol 22 (2) ◽  
pp. 57-59
Author(s):  
S. C. Gupta ◽  
Atul Agarwal ◽  
K. N. Singh
Keyword(s):  
Control System ◽  
Distributed Control ◽  
Distributed Control System ◽  
Fibre Optic
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