These changes cause a series of new technique problems . this paper is concerned with two aspects of transmission services cost of electricity market , transmission loss allocation and transmission cost allocation 本文着重从两个方面对电力市场环境下的输电服务费用问题进行了深入探讨：输电网损分摊和输电费用分配。
With the development of power system and the complexity of system structure , transmission network is more important in the whole system , so people pay more attention to reliability of power system 随着电力系统规模的扩大，结构越来越复杂，输电网络的地位在整个系统中的重要性愈加突出，电网的可靠性问题受到日益的关注。
Then the author discussed the general functions of information management systems in the electric grid and abstracted the common elements from them , then proposed the software architecture of the system 然后作者分析了输电网管理软件的各项功能结构，并对这些功能结构的共性加以概括，提出了三维输电网地理信息系统的一般性软件体系结构和开发模式。
In this thesis , the feature of fault information on hv transmission network has been firstly studied . a method of analysis and diagnosis on the network fault which based on fault recorder information associated with the network is proposed 本文首先研究了高压输电网故障信息的特点，提出了基于故障录波器故障录波信息联网组成的电网故障分析与诊断系统的方案。
Combining the operation model of the power market , we give four patterns of the monopoly mode , the pool purchase competition , the open transmission mode and the retail competition mode , and discuss the development prospect of power market in china 结合电力市场运营模型：垄断模式、发电竞争模式、输电网开放模式和零售竞争模式，探讨了我国电力市场发展的前景。
At last , the author gave an example to exhibit the process of software development and the usage of the system . in addition , the author introduced some problems in the system and some directions of deep research 最后，作者以某具体的三维输电网地理信息系统为例，详细介绍了三维输电网地理信息系统的数据处理、软件开发过程，展示了构建该系统的可操作性和应用前景。
In this paper , development of reliability theory and transmission network characteristic is described , principle and calculational methods of reliability evaluation is discussed , to analyze model and method of power network evaluation 本文讲述了可靠性理论的发展及输电网络的特点，对可靠性评估的基本理论与计算方法进行了讨论，分析了输电网络的可靠性的数学模型与算法。
Based on these models , two kinds of linearized simulink models and a nonlinear simulink model of simple hydro - electricity system are founded and the latter can simulate the variation of power transmission network before and after short - circuit happened 基于这些模型，建立了水电系统线性化simulink模型和具有模拟输电网络短路前后不同阶段网络结构变化功能的非线性simulink模型。
Besides , with the development of power electronics technology , control theory and microprocessor technology , a lot of new technology have appeared which impel the wind generating system using high voltage direct current transmission ( hvdc ) 同时,随着电力电子技术、控制技术和微处理器技术的飞跃发展,又有许多新技术出现,它们向风力发电提出了新的和高压直流输电网并网的要求。
Nearly four years ago , i submitted a comprehensive energy strategy that encourages conservation , alternative sources , a modernized electricity grid , and more production here at home - - including safe , clean nuclear energy . ( applause . ) （掌声）近四年以前，我提出了综合能源战略，鼓励节约，开发替代能源和现代化的输电网，以及促进国内能源生产包括安全、洁净核能的生产。
