The Research Of Electronic Power ONU Based On The Ethernet Passive Optical Network

In recent years, with the development of communications technology, users on broadband technology and automation technology increasingly high demands of the power grid, and traditional power structures have been unable to meet the needs of users, users increasingly higher demands on power supply, national security, environmental protection and other policies on the construction and management of power grid sets even higher standards. Smart grid plan was first announced by the State grid Corporation of China on May21,2009, the smart grid is a set of communications, control, sensor and measurement technology as one of the new network, which include power generation, distribution, transmission, power distribution, power of five pillars, national grid this stage focused on the distribution part of the construction of the smart grid, the main research is located in the part of the distribution network of the device.For smart grid features, as well as to meet the national demand for power distribution automation, launching a smart grid solutions based on EPON technology and development, structure is a point to point of single fiber bi-directional optical access network. This thesis research smart grid system for power distribution network based on EPON technology--power is a key component of ONU (Optical Network Unit, optical network unit), different from the ordinary ONU, the ONU to power such as proprietary data communication and data collection network, you can implement a dual EPON fiber backup, connect power system capture device or meter Terminal serial port serial port data, reliable Exchange. This article mainly introduces the principle of this series of ONU hardware design, software design, testing, and application systems. The main contents include:the principle and development situation of EPON、 the study background and meaning of distribution network terminal ONU、the distribution of terminal ONU system design、the study distribution of terminal ONU hardware design and software design and a study of the test and distribution of terminal ONU system application. Intelligent power distribution network is an important hub connecting power and user, and distribution of the electricity is fed into millions of households of which key, can correspond to the access networks of the telecommunication network. Scientific economic planning of distribution network for distribution automation, can have rapid and adaptive ability of fault handling, providing more reliable and better power quality power supply. EPON technology as a sophisticated communications technology has been widely used in telecommunications, and has been recognized in national power grid as key technology for intelligent power distribution automation components. EPON access network distribution automation communication system has advantages such as low cost, easy to maintain, easy to extend. Now many manufacturers of telecommunications equipment have attached great importance to the development of the electricity market, began to develop their own power of EPON devices, smart grid is the construction of national infrastructure to achieve network convergence.