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Based on graphic technique of GIS, it forms the platform for electric power system software, so that the operation and organization of equipment can be more intuitionist, and the net analysis program of electric power system can be more automatic and precise; At the aspect of power loss calculation, we can get active power and reactive power loss separately, or get each kind of element's attribute, loss, and etc.

它以地理信息系统的图形化技术为基础，为电力系统软件架设图形化平台，使设备的操作、管理更加直观，使电力系统的网络拓扑分析程序更加准确和自动化；在线损计算方面，可以从计算结果中分别统计有功损耗和无功损耗，也可以方便的在配网图上对各种元件进行属性查询，损耗查询等。

And the reasonable proposal for the construction the region electrical power system was put forwardThe power load forecast is the basis of the power system planning.With the actual planning of regional development,uses a scientific and effective load forecasting methods forecast plans the local load electric quantity,is an important work to the regional power system planning.This dissertation uses the BP algorithm, proposed a double hidden layer structure artificial neural network to the forecast ultra-short-term power system load.After the simulation with the actual data,the method which this dissertation proposed compared to the traditional linear extrapolation Prediction method average absolute percent error of 2.5 percentage points,ten minute load forecasts achieve the average absolute percentage error are smaller than 2.5%accuracy.

本文利用人工神经网络BP算法，提出了一种双隐层结构的电力系统超短期负荷预测方法，经过对实际数据的仿真实验，本文提出的神经网络超短期负荷预测方法比传统的线性外推法预测平均绝对百分误差降低2.5个百分点，十分钟负荷预测达到平均绝对百分误差小于2.5%的精度。

For increasing the electric power quality of power system,a power quality management system based on electric power Wide-area Net is established,which is a classified and destributed management system,divided into three layers,that is terminal layer;local net power quality data management system;and central data management system,the WAN is used as a communication medium between layers.

摘 要：为了提高电力系统供电的电能质量，江苏电网已建立了一套网络型电能质量管理系统。该系统是一个分层、分布管理系统，系统分成三层，即监测终端、地区电网电能质量数据管理系统和中心数据管理系统，以广域网为层间通信介质。

SD series power inverters for tale communication facilities are devices that invert mains supply and battery power into uninterrupted and filtered AC power to provide computer and other electric equipment with continuous power supply in the case of unstable mains supply and power failure.

SD系列通信逆变电源设备是一种将市电及电池的电能转化为不间断的、净化的交流电能的变换装置，用以给计算机和其他电气设备提供可使用的连续交流电源，以备市电的不稳定及断电。

For this purpose, the minimum modulus eigenvalue of power flow Jacobian matrix of AC/DC power system is researched; by means of the sensitivity index of nodal voltage to reactive power variation and combining with participating factor, the bus or region where the voltage instability could happen most possibly are judged to provide decision-making foundation for the configuration of reactive power compensation device in power system.

该方法研究了交直流系统潮流方程雅可比矩阵的最小模特征值，以节点电压对无功功率变化的灵敏度为指标，结合参与因子，判断全电网中最有可能发生电压不稳定的节点或者区域，从而为系统无功功率补偿装置的配置提供决策依据。

The authors research the algorithm for power system static voltage stability. Taking the modulus minimum eigenvalue of power flow Jacobian matrix as the criteria to weigh the weakness of power system, the active power injected into nodes equivalent is substituted by equivalent conductance to ground as well as the reactive power injected into nodes is substituted by equivalent susceptance to ground.

研究了电力系统静态电压稳定性算法，以潮流雅可比矩阵最小模特征值的大小作为衡量电网薄弱程度的标准，以等效对地电导代替节点注入有功功率，以等效对地电纳来代替节点注入无功功率。

The article presents the cause of the formation of market power in electric power market, the relation between scarcity and market power, and the analysis methods of market power, enumerates several mitigatory measures of market power and analyzes advantages and disadvantages of them.

对电力市场中市场势力的形成原因、市场势力与稀缺性的关系以及市场势力的分析方法进行了研究探讨，列举了几种平抑市场势力的方法，并对各种方法的优缺点进行了分析，为我国电力市场的规范发展提出了建

In recent years, SiC FET power transistor and GaN high electron movability power transistor represent the third generation semiconductor-wide bandgap semiconductor power devices, have advantages of high breakdown voltage, high power density, as well as high output power, high operation efficiency, high operation frequency, wide instant aneous bandwidth, operation in high temperature environment and strong ability of resisting radiation.

近年来以SiC场效应功率晶体管和GaN高电子迁移率功率晶体管为代表的第三代半导体－宽禁带半导体功率器件具有击穿电压高、功率密度高、输出功率高、工作效率高、工作频率高、瞬时带宽宽、适合在高温环境下工作和抗辐射能力强等优点。

Therefore, this thesis raises "commercial power and DC remote power supply" which is off-line power mode of Uninterruptible Power Supply to resolve the problems of PAS CS power failure.

为此本文提出以"市电+直流远程供电"离线式UPS电源，解决小灵通基站停电问题。

For the current situations that electrical power operation environment is more complex, the power organization reformconstantly, the electricity market is formed step by step, the current electrical equipment is outdate, and for the so many problems that lowenergy efficiency, poor power quality, less interaction between customers and power grid company, this paper defines the smart grid that is suited to China's power grid situation, and summarizes five features for the smart grid such as self-healing, interactive, optimization,compatibility, integration and the differences between smart grid and traditional grid, then introduces the four systems of smart grid and two foundations before building the smart grid, and finally concludes that smart grid is the inevitable result for the economical and technological development.

针对目前电力运行环境的日趋复杂、电力体制改革的不断前进、电力市场的逐步行成、现有的电力设备亟待更新、能源利用率低、电能质量差、用户与电网公司交互作用少等诸多问题，讨论了适合中国电网情况的智能电网的定义，总结出了智能电网自愈、互动、优化、兼容、集成五大特点，概括出了智能电网和传统电网的区别，并详细介绍了构成智能电网的四大体系和建立智能电网的两大基础，最后总结出智能电网是经济和技术发展的必然结果，我国应加快智能电网的研究发展。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。