分布式电源的配电网潮流计算

分析了分布式发电系统的特点和发展状态,重点研究了分布式发电系统接入电网的数学模型,并对常见的几种分布式电源的节点类型进行了划分,归结为PQ节点、PV节点、PI节点和P-Q（V）节点。分别针对这些类型的节点的各自特点,提出了基于前推回代法的配电网三相不平衡潮流计算方法,并根据分布式电源对电压的调节和无功补偿能力,研究了不同类型电源对配电网电压的影响。     

分布式水文模型的图形用户界面开发--在黄河小花间的实例应用

分布式水文模型是当今水文模型发展的趋势 ,是研究变化环境下水文循环与水资源演化规律的理想工具。图形用户界面 (GUI)技术在分布式水文模型中的应用 ,不仅为模型提供了应用的平台 ,更重要的是使复杂的模型具有简单易用性 ,为非专业用户的使用提供了方便 ,分布式水文模型GUI的开发是一个必然的趋势。黄河小花间水文模型为一个松散藕合型、小时为时间尺度的分布式水文模型 ,针对该模型开发的GUI为模型提供数据管理、参数率定、模型运行和结果输出的整体功能。模拟结果表明 ,模型运转良好。     

智能合约技术在食用菌物流管理系统中的应用

为了提高食用菌物流效率,基于区块链中的智能合约技术,解决了食用菌物流管理中出现的合同签订、执行和监督的难题,建立了物流企业间的相互信任机制,并配合电子签名技术的应用。为食用菌物流管理提供了科学的管理手段,提高了物流管理效率。     

Application of Multi-agent Technology in Power System

Modern power system is a complex, open and distributed system. Multi-agent is a new technology of distributed artificial intelligence. It is easy to make the distributed systems run well. The basic principles and the applicable scopes of Multi-agent are described in this paper. Especially the various applications of Multi-agent in power system are introduced, such as security-defense system, secondary voltage control, electricity markets, EMS and power plant. The further studying works of Multi-agent are schemed. The the studying ways in control system, adaptive ability and foreground on wide control fields of power system. applications of the other fields in power system are described, intelligence, communications are pointed out and especially the foreground on wide control fields of power system.     

The Centralize-Distributed Structure Model of Electronic-Business that Based on the Concept of Field-Bus Control System

Electronic business is a model of automation business activities, so the concept of field bus control system that is the latest control technology in automation control domain could be transplanted into electronic business structure to optimize the performance of the electronic business. The author studied the model which had centralize distributed structure and built under the concept of FCS in the environment of electronic business. By analyzing the performance of shops online, authority center and logistics distribution center that have the centralize distributed structure, the conclusions could be drawn that the centralize distributed structure model of electronic business has the advantages of high reliability, rapid response, high expandability, easy to rebuild and high system efficiency that FCS has.     

Intrusion Detection Technology in Ad Hoc Network

With the rapid development of wireless network and mobile computing,the security of network becomes more important.As one of wireless mobile network,mobile Ad hoc network has new vulnerabilities that do not exist in a fixed wired network,and is susceptible to attacks.This paper introduces some methods which used in intrusion detection system and provides a new model of system based on multi-layer integrated distributed technology,especially recommend the protocol analyzing method in this system.     

Analysis of the Impact of DG on the Protection of Distribution System

The effects of DG on the protection of radial distribution system are discussed. With MATLAB/simulink software it builds distribution system model and DG model and calculates the current protection, according to the size and location of DG the effects on the short circuit current and protection of distribution system. The result shows the size of DG affects protection and makes it lose selectivity probably, DG upstream protection makes it amplify protection range, DG downstream protection makes it reduce protection range, and the original protections are necessary to install directional element.     

分布式WebGIS设计及在林权管理中的实现

结合分布式WebGIS技术,针对林权信息的公开发布、空间数据表达、远程传输特点,探讨分布式WebGIS技术在林权管理中的应用,设计林权管理的系统模型,较均衡的分散GIS功能,以提高系统整体性能,实现林权信息的在线发布、查询,提供一个方便的林权资讯平台.     

分布式并发软件生命周期模型研究

针对软件开发原有生命周期模型主要针对传统的顺序集中式开发、已无法适应新的开发需要的问题，提出了针对分布式并发软件开发的菱形软件生命周期模型．分析了传统软件生命周期的缺点，给出了新的生命周期模型定义，以及模型组件的相互关系，分析了模型组件间的有效关系和无效关系，探讨了新模型如何弥补传统软件生命周期模型的不足．该模型定义清晰，使用简单，便于分析分布式并发软件的开发过程．     

基于分布式结构的综合教务管理系统的研究

为实现高等院校管理现代化和信息化，构建校园信息系统，对基于校园网络结构的综合教务管理系统进行了研究，阐述了分布式结构、安全控制、proxy对象等技术在系统中的应用。