Abstract
In this paper, a new smart monitor and control system has been designed for injected power application to grid from a three-phase photovoltaic inverter (a smart monitor and control system (SMCS)). The system consists two main units. Firstly, the control system unit: this unit connects directly to the inverter to measure the output voltage of three-phase photovoltaic inverter and the control circuit, It can turn the inverter ‘on’ or ‘off’ from a long distance. Secondly, the monitoring unit: this unit is designed to monitor the states of the photovoltaic inverter system from long distances. It has two monitoring options OLED and a smartphone monitoring application. LoRa technique (long range) used to send and receive data between controllers system and monitoring system. LoRa is a new type of wireless communication technology within the Internet of Things (IoT). The SMCS application has been designed by using open source software “MIT App Inventor 2”; this application is used to sends and receives the data from a control unit by using Bluetooth as a wireless communication in order to monitor and control the whole system. The main advantage of the SMCS that it can monitor and control three-phase photovoltaic inverters that have been installed in remote and rural areas.
Highlights
Due to the development of Internet of Things (IoT) technology and high-speed communication technologies, wireless communications provide people with a convenient, high speed and efficiency, and efficient way in which to control the electrical and electronic devices from long distances
LoRa is a new type of wireless communication technology within the Internet of Things (IoT)
Wireless communication has been widely used in medicine and industrial production, as well as in applications used by the public
Summary
Due to the development of Internet of Things (IoT) technology and high-speed communication technologies, wireless communications provide people with a convenient, high speed and efficiency, and efficient way in which to control the electrical and electronic devices from long distances. Wireless communication has been widely used in medicine and industrial production, as well as in applications used by the public. It is especially useful when transferring data from remote and dangerous areas [1]-[5]. Several methods are used to monitor and control the three-phase photovoltaic inverter systems with different types of wireless sensor networks (like Wi-Fi, ZigBee etc.).
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