Wind and Electricity Supplementary Actuation Desalination Control System Research

2014 ◽  
Vol 577 ◽  
pp. 390-394
Author(s):  
Chang Xuan Ma ◽  
Zhen Ping Sun
Keyword(s):  
Control System ◽  
Vertical Axis ◽  
Water Desalination ◽  
Electrical Network ◽  
System Research ◽  
Vertical Axis Wind Turbine ◽  
High Pressure Pump ◽  
Final Assembly ◽  
And Control ◽  
Turbine Impeller

This article is the windward electricity supplementary actuation desalination control system conducts the research, With the wind directly driven desalination high pressure pump, Complemented by electricity network as a supplementary, When the wind is great, Also may the back coupling electrical network, This system according to the amount of water desalination successively calculated, design, Select vertical-axis wind turbine impeller, the transmission system, desalination system and control system, final Assembly and test.

scholarly journals Design and Implementation of an Intelligent Blade Pitch Control System and Stability Analysis for a Small Darrieus Vertical-Axis Wind Turbine

Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 235
Author(s):  
Gebreel Abdalrahman ◽  
Mohamed A. Daoud ◽  
William W. Melek ◽  
Fue-Sang Lien ◽  
Eugene Yee
Keyword(s):  
Control System ◽  
Stability Analysis ◽  
Power Output ◽  
Pitch Angle ◽  
Vertical Axis ◽  
Prototype Model ◽  
Vertical Axis Wind Turbine ◽  
Pitch Control ◽  
Hybrid Controller ◽  
The Stability

A few studies have been conducted recently in order to improve the aerodynamic performance of Darrieus vertical-axis wind turbines with straight blades (H-type VAWTs). The blade pitch angle control is proposed to enhance the performance of H-type VAWTs. This paper aims to investigate the performance of an H-type VAWT in terms of its power output and self-starting capability using an intelligent blade pitch control strategy based on a multi-layer perceptron artificial neural network (MLP-ANN) method. The performance of the proposed blade pitch controller is investigated by adding a conventional controller (PID) to the MLP-ANN controller (i.e., a hybrid controller). The dynamics of an H-type VAWT is mathematically modeled in a nonlinear state space for the stability analysis in the sense of Lyapunov. The effectiveness of the proposed pitch control system is validated by building an H-type VAWT prototype model that is extensively tested outdoors under different conditions for both fixed and variable pitch angle configurations. Results demonstrated that the blade-pitching technique enhanced the power output of an H-type VAWT by approximately 22%. The hybrid controller that used a high percentage of the MLP-ANN controller achieved a better control performance by reducing the overshoot of the control response at high rotor speeds.

Design and Control System Research on Mating Device of Underwater Vehicle

2011 ◽  
Vol 486 ◽  
pp. 69-72
Author(s):  
Zhong Lin Zhang ◽  
Li Quan Wang
Keyword(s):  
Control System ◽  
Deep Ocean ◽  
Underwater Vehicle ◽  
Three Dimension ◽  
System Research ◽  
Scientific Observation ◽  
Working Space ◽  
Simulation Results ◽  
And Control ◽  
At Home

With the development and research on the ocean, underwater mating technique has received wide applications such as the exploration of ocean bed, the scientific observation, the deep ocean workstation, and the aided submarine lifesaving. By investigating the mating devices at home and abroad, a mating device of underwater vehicle was developed. Three-dimension assembly of the mating device indicated it can meet the working space of underwater vehicle passageway and there is no interference. It is analyzed that the device can meet the need of a bigger obliquity. Design and simulation on control system of mating device was conducted. The simulation results showed that the system is stable, and it lends itself to the design of the mating device of underwater vehicle.

scholarly journals Experimental analysis of vertical axis wind turbine active pitch control system with Permanent Magnet Synchronous Motor using MATLAB Simulink tools

Energetika ◽  
2016 ◽  
Vol 62 (1-2) ◽  
Author(s):  
Tomas Komass
Keyword(s):  
Control System ◽  
Wind Turbine ◽  
Permanent Magnet ◽  
Test Bench ◽  
Permanent Magnet Synchronous Motor ◽  
Vertical Axis ◽  
Vertical Axis Wind Turbine ◽  
Matlab Simulink ◽  
Pitch Control ◽  
Pitch System

Efficient vertical axis wind turbine (VAWT) technology is a key topic for the future wind energy market. At the moment, VAWTs are seldom used for electricity production. The development of new technologies for building a new generation of VAWTs, which will be more efficient, user-friendly, and with very low noise pollution levels is the target for many researchers. The goal of this research was to analyse an active pitch control system in an experimental setting through construction of an active pitch control system test bench using a Permanent Magnet Synchronous Motor (PMSM) and to develop new testing programmes for analytical system performance tests. The  current commercial turbines do not carry an active pitch system for a VAWT; however, the concept of an active turbine blade pitching opens new opportunities for boosting the efficiency, safety, and user-friendliness of VAWTs. The  research consists of the  mathematical model and control system operating in a simulation environment in a closed loop with the test bench setup consisting of an active pitch control system. By applying a specially developed VAWT simulation model implemented in MATLAB Simulink, an active pitch system was tested and analysed under various conditions, which were as close as possible to the real-world operating conditions. The results of the testing and analysis show that an active pitch system using the PMSM can be very efficient and fast-operating. An active pitch system is able to work on the needed conditions by using the PMSM. Analysis shows that while using the PMSM for a turbine active pitch system, certain conditions should be taken into account in order to achieve the best results and to reduce costs. Full and effective use of active pitch system components can improve VAWT performance.

Performance Predictions of a Circulation Controlled-Vertical Axis Wind Turbine With Solidity Control

2009 ◽  
Author(s):  
Jay P. Wilhelm ◽  
Emily D. Pertl ◽  
Franz A. Pertl ◽  
James E. Smith
Keyword(s):  
Wind Turbine ◽  
Vertical Axis ◽  
Speed Ratio ◽  
Vertical Axis Wind Turbine ◽  
Tip Speed Ratio ◽  
Vertical Axis Wind Turbines ◽  
Performance Predictions ◽  
Overall Performance ◽  
And Control ◽  
Selection Of

Conventional straight bladed vertical axis wind turbines are typically designed to produce maximum power at tip speed ratio, but power production can suffer when operating outside of the design range. These turbines, unless designed specifically for low speed operation, may require rotational startup assistance. Circulation control methods, such as using blowing slots on the trailing edge could be applied to a Vertical Axis Wind Turbine (VAWT) blade. Improvements to the amount of power developed at lower speeds and elimination or reduction of startup assistance could be possible with this lift augmentation. Selection of a beneficial rotor solidity and control over when to utilize the blowing slots for the CC-VAWT (Circulation Controlled-Vertical Axis Wind Turbine) appears to have a profound impact on overall performance. Preliminary performance predictions indicate that at a greater range of rotor solidities, the CC-VAWT can have overall performance levels that exceed a conventional VAWT. This paper describes the performance predictions and solidity selection of a circulation controlled vertical axis wind turbine that can operate at higher overall capture efficiencies than a conventional VAWT.

Numerical Control System Research and Development of Acrobatic Stage

2014 ◽  
Vol 598 ◽  
pp. 574-577
Author(s):  
Peng Xian Cao ◽  
Hong Bin Cui ◽  
Xin Yu Liu ◽  
Xue Song Yu ◽  
Chang Long Liu
Keyword(s):  
Control System ◽  
Research And Development ◽  
Numerical Control ◽  
Numerical Control System ◽  
System Research ◽  
Continuous Development ◽  
Strain Capacity ◽  
3D Space ◽  
And Control ◽  
Control Part

With the continuous development of CNC technology, its application is more and more extensive. In recent years, the application of CNC technology in the area of stage also made great achievements. This paper detailed a scientific and reasonable scheme of acrobatic stage machinery and its control part, using CNC technology in acrobatic stage, through the corresponding algorithm and software realizing the operation and control of any trajectory in 3D space, taking advantage of intelligent editing function of screen running track, and compared with the traditional acrobatic stage , it gets more flexible, stronger strain capacity.

Web-Based Heating Boiler Control System Research

2012 ◽  
Vol 198-199 ◽  
pp. 1774-1778
Author(s):  
Dong Song Luo ◽  
Ji Ying Tuo
Keyword(s):  
Control System ◽  
Human Resources ◽  
Control Systems ◽  
Mixed Mode ◽  
Control Strategies ◽  
Operating Costs ◽  
System Research ◽  
Web Based ◽  
And Control ◽  
Heating Boiler

Aiming at the defects of traditional heating boiler control systems, in Geographical limitations, waste of human resources etc. We combines Web technology with traditional heating boiler control strategies, developed a B/S,C/S mixed-mode control system, that allows workers look up data and control heating boilers from Website safely, no matter where the heating boiler located. Website is developed in ASP.NET, other programs are developed in VC++.NET. This system can improve management and production efficiencies, reduce human resources and operating costs.

CFD and Control Analysis of a Smart Hybrid Vertical Axis Wind Turbine

2018 ◽  
Author(s):  
Arian Hosseini ◽  
Navid Goudarzi
Keyword(s):  
Wind Turbine ◽  
Vertical Axis ◽  
Power Coefficient ◽  
Control Analysis ◽  
Vertical Axis Wind Turbine ◽  
Aerodynamic Properties ◽  
Switch Mechanism ◽  
Electro Magnetic ◽  
Operational Range ◽  
And Control

Wind energy has become a dominant source of renewable energy during the past decade. Current hybrid wind turbines are primarily designed and manufactured based on a combination of aerodynamic properties for both Darrieus and Savonius turbines. In this work, the aerodynamic performance characteristics of a smart vertical axis wind turbine (VAWT) with an electro-magnetic switch mechanism for dis-/engagement mechanism is studied analytically and numerically. The proposed novel VAWT offers a high start-up torque by a Savonius turbine and high power coefficient values by a Darrieus turbine. The switch mechanism can further improve the system efficiency by running the turbines together or independently. The proposed hybrid VAWT was modeled as a combined Savonius-type Bach turbine and a 3-bladed H-Darrieus turbine. The hybrid turbine has a self-startup feature and reaches a coefficient of power (Cp) of over 40%. The turbine is also estimated to cover a wide operational range up to TSR 6. The follow on research phases of the project include studying the proposed smart VAWT experimentally and validating the results with those obtained through computational analysis.

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