Implementation Of Double Network Interface For An E Nergy Remote Terminal Unit

After years of development and construction, power dispatching data network gradually as the main power system data transmission carrier technical support system this role, remote terminal, remote terminal electric energy, relay setting disposal, power plant environmental monitoring, OMS and the like are by virtue of the power plant end equipment dispatching data network access throughout the large electric power systems.Taking into account the reliability and stability of the network data transmission, to ensure safe and economic operation of power system, an important backbone for power plants and substations to configure a second plane data network. At the same time, access to important scheduling data network terminal device must also support dual-plane access. According to the national grid scheduling data network access network technical requirements, terminal equipment need to use two independent network channels respectively connected first and second plane, and concurrent operation. In order to achieve information access, some of the terminal device uses a serial-to- Ethernet converter expand the network channels, this scheme limits the throughput of network data transmission, but also reduces the reliability of information access.Core board electric energy remote terminal previously used this study has been discontinued, electronic stock, also taking into account the underlying core board comes to upgrade to Ethernet controller and application software drivers are not compatible, the entire device is not available Ethernet network interface. Task Force decided to establish a project to develop a multi-purpose motherboard with dual-NIC, respectively, network access the first plane and the second plane network, upgrading of equipment design.According to project requirements, this paper completed a multi- functional electric energy remote terminal motherboard design, and focuses on the two-plane card design and implementation of hardware and software. In this paper, a new generation of VDX-1070 microcontroller core design and implementation of the HT2000 e RTU hardware platform, and use standard rail mounting racks for process design. This article is designed e RTU anti-jamming capability, dual Ethernet ports to communicate, compact easy to install, use is even life long, has a high application value.Key research projects are: first, to meet two-sided card design flat network access requirements; secondly, upgrading of plant Shenmu biplane network.After completing the electrical energy remote terminal biplane network access platform design, first, for the corresponding commissioning tests test, to verify the card design features and performance and demand compliance. Finally, to complete the tasks in electrical power generation company Guohua Shenmu dispatching data network dual-plane transformation through acceptance testing, the current system is operating normally.