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无需电源的无线通信技术的开发
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作者 魏文 《无线互联科技》 2013年第11期58-58,共1页
经济社会的飞速发展,为我们带来日新月日的生活变化,我们生活的这个时代称为"信息时代",无线通信技术的开发的出现解决了我们生活上很多问题,也越来越广泛的应用到了我们生活的每一个领域。本文就无需电源的无线通讯系统做了... 经济社会的飞速发展,为我们带来日新月日的生活变化,我们生活的这个时代称为"信息时代",无线通信技术的开发的出现解决了我们生活上很多问题,也越来越广泛的应用到了我们生活的每一个领域。本文就无需电源的无线通讯系统做了一个简要的分析。 展开更多
关键词 无需电源的无线通信 发展历程 意义
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一种基于主动电压扰动的直流微网负载均流控制策略 被引量:15
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作者 佟子昂 武建文 +2 位作者 马速良 蒋原 罗晓武 《电工技术学报》 EI CSCD 北大核心 2019年第24期5199-5208,共10页
随着新能源发电技术的快速发展,直流微网变换器并联导致的功率分配不均和母线电压控制问题引起了广泛关注。目前,直流微网的大部分均流策略依赖系统或级间通信,均流效果受通信系统的可靠性影响。该文提出一种面向多台直流变换器并联运行... 随着新能源发电技术的快速发展,直流微网变换器并联导致的功率分配不均和母线电压控制问题引起了广泛关注。目前,直流微网的大部分均流策略依赖系统或级间通信,均流效果受通信系统的可靠性影响。该文提出一种面向多台直流变换器并联运行,基于主动电压扰动的负载均流控制策略。无需通信,各直流变换器根据扰动前后本地的电气参数获取母线负载信息,据此实现多台直流变换器负载电流的均衡分配,同时将母线电压补偿至额定值;采用主动扰动方式,对电能质量影响小而可控。通过搭建仿真和实验平台,分析了在该文均流测量下负载突变后的均流效果,仿真及实验结果验证了文中均流策略的有效性。 展开更多
关键词 直流微网 主动电压扰动 负载均流 无需通信 母线电压控制
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Event-Oriented Dynamic Security Service for Demand Response in Smart Grid Employing Mobile Networks
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作者 GUO Longhua DONG Mianxiong +2 位作者 Kaoru Ota WU Jun LI Jianhua 《China Communications》 SCIE CSCD 2015年第12期63-75,共13页
Equipped with millions of sensors and smart meters in smart gird,a reliable and resilient wireless communication technology is badly needed.Mobile networks are among the major energy communication networks which contr... Equipped with millions of sensors and smart meters in smart gird,a reliable and resilient wireless communication technology is badly needed.Mobile networks are among the major energy communication networks which contribute to global energy consumption increase rapidly.As one of core technologies of smart grid employing mobile networks,Demand Response(DR) helps improving efficiency,reliability and security for electric power grid infrastructure.Security of DR events is one of the most important issues in DR.However,the security requirements of different DR events are dynamic for variousactual demands.To address this,an event-oriented dynamic security service mechanism is proposed for DR.Three kinds of security services including security access service,security communication service and security analysis service for DR event are composited dynamically by the fine-grained sub services.An experiment prototype of the network of State Grid Corporation of China(SGCC) is established.Experiment and evaluations shows the feasibility and effectiveness of the proposed scheme in smart grid employing mobile network. 展开更多
关键词 dynamically smart overhead infrastructure broadcast badly password electricity prototype authentication
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A Reliable and Secure Smart Grid Communication Network Using a Comprehensive Cost Function
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作者 Vahid Kouhdaragh 《Journal of Energy and Power Engineering》 2017年第2期115-126,共12页
SG (smart grids) is an intelligent power grid in which the diverse nodes should communicate different types of information which have different communication requirements with CS (control stations). There exist se... SG (smart grids) is an intelligent power grid in which the diverse nodes should communicate different types of information which have different communication requirements with CS (control stations). There exist several RATs (radio access technologies), with diversification in quality of service character which respect to the SG nodes communication requirements. On the other side, spectrum is becoming a rare source and its demands request is increasing exponentially. Therefore, resource allocation to support different types of SG nodes should be elaborated so that the resource efficiency is maximized while the SG communication requirements are respected. Using a CF (cost function) based on the SG node requirements and RATs characteristics to find the desirability value of every RATs for a certain node type accomplish this goal in combination with prioritizing the different SG nodes types based on SG goals by creating a priority table for RATs and different SG node types. The main node communication requirements are formulized to be used in the CF in this paper. The numerical results show that the proposed method defines the desirability value of each RAT for a certain SG node type that helps to make a priority table by using the SG node prioritization table. 展开更多
关键词 Smart grid node prioritization cost function communication requirements spectral efficiency heterogeneous network.
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