SCADA SYSTEM SIMULATION FOR A PHOTOVOLTAIC ROOFTOP SYSTEM (original) (raw)
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Design and Implementation of a Solar Panel Data Monitoring System Based on PLC S7-1200
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The thesis discusses the challenges faced by traditional solar panel monitoring systems. The thesis details the conceptualization and execution of two distinct architectures for PV applications. The first architecture focuses on a data monitoring apparatus for PV panels, utilizing a PLC S7-1200 programmable logic controller and incorporating five different data visualization methods. This system includes various sensors and instrumentation to monitor the performance of solar panels, such as temperature, current, voltage, and irradiance sensors. The second proposed architecture involves using the PLC S7-1200 to regulate a DC-DC boost converter while interfacing with the SCADA interface. The DC-DC converter transforms the variable voltage output from the PV array into a consistent voltage suitable for different applications. The system utilizes a PID controller and a PWM controller to continuously adjust the PWM duty cycle value of the boost converter based on feedback from sensors and predefined setpoints. The SCADA interface facilitates performance monitoring and provides a user-friendly interface for system control. The PLC S7-1200 serves as the central controller, programmed using the TIA Portal V17 software, and collects data from the solar panels through analog input modules. The collected data is processed, analyzed, and stored in a database for further exploration and visualization. The results highlight the system's effectiveness in real-time data acquisition, centralized monitoring and control, and closed-loop regulation of the boost converter's duty cycle.
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Conventional energy has been used from ancient times. Coal, natural gas, oil, uranium, and firewood are example of conventional source. These sources are consider the main source of air pollution. So, it is desired to use clean energy sources such as solar power, wind turbine, and hydro-electric power. We need to monitor and control parameters of clean energy sources when they are working as a power source. In this research, few low-cost Supervisory Control and Data Acquisition (SCADA) systems have been designed for a small photovoltaic system to save data in a text file and show it on monitor screen as a number or graph. The proposed system is designed using four methods. The first method, is based on low cost sensors, Arduino Uno, and Raspberry pi. These components are connected together to send data to web server on the internet (www.ubidots.com). Second method, is based on three things: low cost sensors, Arduino Uno, and free Reliance SCADA software. In this method, the data is ...
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SCADA (supervisory control and data acquisition) systems are currently employed in many applications, such as home automation, greenhouse automation, and hybrid power systems. Commercial SCADA systems are costly to set up and maintain; therefore those are not used for small renewable energy systems. This paper demonstrates applying Reliance SCADA and Arduino Uno on a small photovoltaic (PV) power system to monitor the PV current, voltage, and battery, as well as efficiency. The designed system uses low-cost sensors, an Arduino Uno microcontroller, and free Reliance SCADA software. The Arduino Uno microcontroller collects data from sensors and communicates with a computer through a USB cable. Uno has been programmed to transmit data to Reliance SCADA on PC. In addition, Modbus library has been uploaded on Arduino to allow communication between the Arduino and our SCADA system by using MODBUS RTU protocol. The results of the experiments demonstrate that SCADA works in real time and ca...
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The remote photovoltaic systems needs a simple, cheap, remote monitoring and remotely controlling devices. Supervisory Control and Data Acquisition (SCADA) systems based on PLCs are very complex, lower reliability, and require developed electronic industry in order to produce sophisticated PLC's. Information Technology (IT) industry requires simpler, cheap, no restrictions on software or hardware SCADA systems. This paper presents a new generation of Remote Terminal Unit (RTU) for SCADA system based on microcontroller for customer side distribution automation system. We have a common trend of attempting to lower SCADA costs on RTU side. Our paper goals are to go to deep in lowering the cost of RTU unit, freeing the software so lowering system cost, and to expand the open source technology culture away from the restricted one of the large companies. A proposed microcontroller-based SCADA system with an open source software and graphical user interface is introduced in this paper. Our proposed system cost lowering efforts depending on the simple remote terminal unit (RTU), and an open source software. The system is modular where the main terminal unit (MTU) with a human machine interface (HMI) can access many RTUs that can plug and play. The proposed system is designed, implemented and gave excellent results in collecting data, transmitting, monitoring, and applying system control as well. One of the most appropriate applications for SCADA is the remote area photovoltaic standalone systems. The SCADA is used as monitoring, control and management system.
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Supervisory Control and Data Acquisition (SCADA) systems based on PLCs are very complex, lower reliability, and require developed electronic industry in order to produce sophisticated PLC's. Information Technology (IT) industry requires simpler, cheap, no restrictions on software or hardware SCADA systems. This paper presents a new generation of Remote Terminal Unit (RTU) for SCADA system based on microcontroller for customer side distribution automation system. We have a common trend of attempting to lower SCADA costs on RTU side. Our paper goals are to go to deep in lowering the cost of RTU unit, freeing the software so lowering system cost, and to expand the open source technology culture away from the restricted one of the large companies. A proposed microcontroller-based SCADA system with an open source software and graphical user interface is introduced in this paper. Our proposed system cost lowering efforts depending on the simple remote terminal unit (RTU), and an open source software. The system is modular where the main terminal unit (MTU) with a human machine interface (HMI) can access many RTUs that can plug and play. The proposed system is designed, implemented and gave excellent results in collecting data, transmitting, monitoring, and applying system control as well. One of the most appropriate applications for SCADA is the remote area photovoltaic standalone systems. The SCADA is used as monitoring, control and management system.
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In order to analyze the performance of photovoltaic (PV) systems, we have developed a real-time expert system based on a central microcomputer used as a microserver and can be easily consulted from different automatic stations. The developed system is able to ensure the monitoring, supervision, and control of PV systems installed over a wide area, on one hand, and to create a general PV systems database, on the other. This paper presents a design of a universal data acquisition system with available components and which is easily accessible through a server. The hardware and software configuration of the expert system are described. Performance of this system are also presented when applied on PV systems.
Design visual studio based GUI applications on-grid connected rooftop photovoltaic measurement
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This article describes the design of a data system to integrate energy conversion from photovoltaic measurements connected to the power grid. The software used is visual studio, while the hardware uses polycrystalline photovoltaic (PV) with a capacity of 2.08 kW and several sensors that have been integrated into Arduino. Parameter data in measuring the performance of this PV system consists of temperature and humidity sensors to measure the panel surface, direct current (DC) current sensor, DC voltage sensor. To measure the current and voltage sourced from the electricity network, the module (PZEM-004T) is used. Measurements are designed using a graphical user interface (GUI) on a Visual Studio application that has been interfaced through Arduino programming. The data output on the sensor measurement will simultaneously record the circuit that has been connected to the solar panel and then display it visually in the form of tables and graphs in real time with a delay of 1 minute. The results of PV on grid measurements in sunny weather conditions obtained the maximum value of all measurements with a DC voltage of 221 V, while for an alternating current (AC) voltage of 231.60 V, the DC value reached 1827.17 W while the AC power was 1681 W.
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