scholarly journals Fuzzy Logic System for Intermixed Biogas and Photovoltaics Measurement and Control

2018 ◽  
Vol 2018 ◽  
pp. 1-18 ◽  
Author(s):  
Liston Matindife ◽  
Zenghui Wang ◽  
Yanxia Sun
Keyword(s):  
Fuzzy Logic ◽  
Fault Detection ◽  
Embedded System ◽  
Controller Design ◽  
Field Studies ◽  
System Optimization ◽  
Generation Process ◽  
Control Methods ◽  
And Control ◽  
Measurement And Control

This study develops a new integrated measurement and control system for intermixed biogas and photovoltaic systems to achieve safe and optimal energy usage. Literature and field studies show that existing control methods on small- to medium-scale systems fall short of comprehensive system optimization and fault diagnosis, hence the need to revisit these control methods. The control strategy developed in this study is intelligent as it is wholly based on fuzzy logic algorithms. Fuzzy logic controllers due to their superior nonlinear problem solving capabilities to classical controllers considerably simplify controller design. The mathematical models that define classical controllers are difficult or impossible to realize in biogas and photovoltaic generation process. A microcontroller centered fuzzy logic measurement and control embedded system is designed and developed on the existing hybrid biogas and photovoltaic installations. The designed system is able to accurately predict digester stability, quantify biogas output, and carry out biogas fault detection and control. Optimized battery charging and photovoltaic fault detection and control are also successfully implemented. The system is able to optimize the operation and performance of biogas and photovoltaic energy generation.

Research of Plastic Material Dynamic High-Speed Tensile Machine’s Measurement and Control System Based on FPGA

2011 ◽  
Vol 335-336 ◽  
pp. 372-375 ◽  
Author(s):  
Xin Hu Xu ◽  
Gui Qin Li ◽  
Qing Guo ◽  
Feng Lin ◽  
Xin Cai
Keyword(s):  
Control System ◽  
Embedded System ◽  
High Speed ◽  
Plastic Material ◽  
Strain Rate Range ◽  
Servo Drive ◽  
Measurement And Control System ◽  
Control Response ◽  
And Control ◽  
Measurement And Control

This paper will give a solution of measurement and control system based on FPGA embedded system for the Plastic Material Dynamic High-speed Tensile Machine (PMDHTM) with 1-100s-1strain rate range. Using sub-modules design of Nios II soft-wore and SOPC to build measurement and control system. The state machine algorithm and servo drive device are applied to accomplish precise state control of the linear shaft motor. Collecting the stress data online and non-contacting strain measurement is adopted. The test result can well meet the linear motor control response demand below the 5Hz frequency. Compared with other control based on SCM, DSP and so on, it supplies an innovation way for the PMDHTM control.

Design According to the Measurement & Control Platform of the AT91RM9200 Embedded System

2012 ◽  
Vol 490-495 ◽  
pp. 475-480
Author(s):  
Pi Yan He ◽  
Jia Yang
Keyword(s):  
Embedded System ◽  
Test System ◽  
Test Functions ◽  
Modular Architecture ◽  
Hardware Platform ◽  
Test Function ◽  
Measurement Control ◽  
Task Processing ◽  
And Control ◽  
Measurement And Control

In this paper, the design scheme of a Measurement and Control(M&C) system based on AT91RM9200 is proposed. For expanding the test functions, based on the AT91RM9200 control platform the GPIB interface is added in the platform. With the EMAC interface, the automatic test function on multiple communication channels is realized on the GPIB test bus and Ethernet. In this paper, the Modular architecture is used to design the hardware platform. While in the design of the software, the real-time multitasking function of RTOS is combined with the task processing methods corresponding to the interruptions to make the design , building and reusing of tasks more convenient. So that the whole test system can be more common and scalable.

scholarly journals A Comparative Study of Formation Control at the Earth-Moon L₂ Libration Point

2021 ◽  
Author(s):  
Waqas A. Manzoor
Keyword(s):  
Formation Control ◽  
Controller Design ◽  
Libration Point ◽  
Control Strategies ◽  
Control Input ◽  
Control Methods ◽  
Space Applications ◽  
Affine Systems ◽  
The Earth ◽  
And Control

This thesis examines the performance of control methods that fall under the optimal, predictive and adaptive classifications, subjected to sensor/actuator faults, and presents approaches to apply them to non-affine systems utilizing single thruster and solar sail actuator configurations. The system of interest consists of a leader-follower satellite formation near the L2 point of the Earth-Moon system. The control methods studied here include those which are emerging in the space systems literature, and are evaluated in terms of their transient and steady state responses, and control input variation. Numerical simulation of faults affecting both sensor and propulsion actuator systems are conducted, along with an experiment to validate the results in a laboratory environment. The observed behavioral characteristics in the simulations match those demonstrated in the experiment. Alternative representations of dynamics were explored for controller design of non-affine systems. The research presented herein provides support for the usage of the proposed control strategies in future space applications.

scholarly journals A Comparative Study of Formation Control at the Earth-Moon L₂ Libration Point

2021 ◽  
Author(s):  
Waqas A. Manzoor
Keyword(s):  
Formation Control ◽  
Controller Design ◽  
Libration Point ◽  
Control Strategies ◽  
Control Input ◽  
Control Methods ◽  
Space Applications ◽  
Affine Systems ◽  
The Earth ◽  
And Control

This thesis examines the performance of control methods that fall under the optimal, predictive and adaptive classifications, subjected to sensor/actuator faults, and presents approaches to apply them to non-affine systems utilizing single thruster and solar sail actuator configurations. The system of interest consists of a leader-follower satellite formation near the L2 point of the Earth-Moon system. The control methods studied here include those which are emerging in the space systems literature, and are evaluated in terms of their transient and steady state responses, and control input variation. Numerical simulation of faults affecting both sensor and propulsion actuator systems are conducted, along with an experiment to validate the results in a laboratory environment. The observed behavioral characteristics in the simulations match those demonstrated in the experiment. Alternative representations of dynamics were explored for controller design of non-affine systems. The research presented herein provides support for the usage of the proposed control strategies in future space applications.

scholarly journals Modelling and Controller Design for Non- Linear Two Tank Interacting System

2020 ◽  
Vol 9 (6) ◽  
pp. 82-85
Keyword(s):  
Fuzzy Logic ◽  
Comparative Study ◽  
Mathematical Modelling ◽  
Pid Controller ◽  
Fuzzy Logic Controller ◽  
Controller Design ◽  
Linear Process ◽  
Matlab Simulink ◽  
Non Linear ◽  
And Control

This paper explains the mathematical modelling and controller design of Two Tank Interacting System (TTIS) for a non-linear process. To design the non-linear process using Matlab Simulink and control the process using conventional PID controller and Fuzzy Logic Controller (FLC). A comparative study was conducted extensively made to examine which controller suits well for the non-linear process through the response observed.

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