tailieunhanh - The development of real-time communication network based on Zigbee and Ethernet for Photovoltaic systems

In the experiment prototype of this paper, we use the CC2530ZNP-Mini Kit to create a simple network includes one coordinate and one end device for the first step. The end device was configured to get current and voltage values from a 3-phase grid-connected solar inverter 800Wpk and then sends the values to the coordinate. | TAÏP CHÍ PHAÙT TRIEÅN KH&CN, TAÄP 17, SOÁ K1- 2014 The development of real-time communication network based on Zigbee and Ethernet for Photovoltaic systems • Phan Quoc Dung • Dao Ngoc Dat • Le Chi Hiep Power Electronics Research Lab, University of Technology, VNU-HCM (Manuscript Received on April 28h, 2014; Manuscript Revised August 13th, 2014) ABSTRACT: In a large system with a lot of distribution solar sources which are all connected to the national grid, a communication system becomes the important part for data acquisition in order to control the whole system stable and efficiency. To deal with this challenge, this paper presents a solution based on Zigbee and Ethernet communication standard. Zigbee standard was created to be a specification of a high level wireless communication protocol which is not only secure, reliable, simple but also low cost and low power. With Zigbee, we can create a communication network for hundreds to thousands of mini solar sources in a large scale of photovoltaic system. Ethernet is a high speed wired communication technology that is used widely in industrial and automatic applications. Together Zigbee and Ethernet bring to us a real-time communication solution for the system. In the experiment prototype of this paper, we use the CC2530ZNP-Mini Kit to create a simple network includes one coordinate and one end device for the first step. The end device was configured to get current and voltage values from a 3-phase grid-connected solar inverter 800Wpk and then sends the values to the coordinate. After the coordinate received data, it would send them to an Ethernet controller board. To display the data through Ethernet, we embedded a web server on the Ethernet controller board. By this way, the data was easy to visualize and supervised by using any web browser. Keywords: Zigbee, Ethernet, Web server, 3-phase grid-connected solar inverter. 1. INTRODUCTION As a result of the increasing integration of renewable energy sources

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