Soft-Switch Technology Application of Electric Power Communication Network

2013 ◽  
Vol 392 ◽  
pp. 553-556
Author(s):  
Jun Liu Zhang ◽  
Hong Tang ◽  
Gang Wang ◽  
Shao Hui Feng ◽  
Li Juan Xiong ◽  
...  

In China, more and more power communication network soft-switch transformation is proposed. In this context, the article analyzes the principle of the introduction of the soft-switch technology. Detailed design methods and strategies for the introduction of soft-switch technology. and compare these rehabilitation programs. Analysis application of soft-switch in Huizhou and Xianning.

2013 ◽  
Vol 380-384 ◽  
pp. 3633-3636
Author(s):  
Xiao Hui Cheng ◽  
Zuo Xun Wang ◽  
Yi Liu

The distribution grid communication network is an important part of electric power communication system. But it has became a limit of distribution network for the absence of effective communication method. This paper first introduces the characteristic and information requirement of smart distribution network, then makes a deep research and comparison on the communication technology such as PONWireless Network and PLC. Finally it presents a technology application scheme and system structure of distribution communication network.


2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Bo Hu ◽  
Xin Liu ◽  
Jinghong Zhao ◽  
Siya Xu ◽  
Zhenjiang Lei ◽  
...  

With the development of the energy Internet, power communication services are heterogeneous, and different power communication services have different business priorities. The power communication services with different priorities have different requirements for network bandwidth and real-time performance. For traditional unified service, a scheduling method cannot meet these service requirements at the same time, and electric power communication network cannot guarantee the quality of service. Therefore, how to make full use of the time-varying characteristics of communication resources to meet the business needs of different priorities and achieve the goals of high resource utilization and transmission quality has become one of the urgent problems in the power communication network. For this reason, in order to adapt to the real-time congestion of the network, we have designed a packet scheduling method based on the dynamic adjustment of service priority, which dynamically adjusts the priority of the power service on the node; in addition, an evaluation method for the trust value of wireless forwarding nodes is introduced to improve the security of data transmission; and finally, we valuate the channel quality to establish a reasonable and efficient packet scheduling mechanism for services of different priorities. Simulation results show that this method improves the communication performance of high-priority services and improves the spectrum resource utilization of the entire system.


Author(s):  
Zengo Aizawa ◽  
William Carberg

Combined cycle technology was successfully applied to the 2000 MW Tokyo Electric Power Co. (TEPCO) Futtsu Station. The fourteen 165 MW single shaft combined cycle Stages were commissioned between 1985 and 1988. Since that time, experience has been accumulated on these 2000 deg F (1100 deg C) class gas turbine based Stages. With the advent of 2300 deg F (1300 deg C) class gas turbines and dry low NOx technologies, an advanced combined cycle with substantially improved performance became possible. TEPCO commissioned General Electric, Toshiba and Hitachi to perform a study to optimize the use of these technologies. The study was completed and the participants are now doing detailed design of a plant consisting of eight 350 MW single shaft combined cycle Stages. The plant will be designated the Yokohama Thermal Power Station No. 7 and No. 8 Groups. This paper discusses experience gained at the Futtsu Station, the results of the optimization study for an advanced combined cycle and the progress of the design for Yokohama Groups No. 7 and No. 8.


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