电网

During the research on the planning of rural power total system, upbuilds the 0-1 integer-planning model, and improves Genetic Algorithm for solving the model.

在农村电网整体系统规划研究中，建立了农村电网规划的0-1整数规划模型，并对遗传算法的各个环节作部分改进用于问题的求解。

Based on the investigate and analysis for the distribution network of KaiFeng Power Bureau company, this paper does researches on the Distribution Management System.

本文针对开封供电区配电网现状进行了调查分析，在此基础上应用地理信息系统研究开发开封市电业局配电网管理信息系统。

In this paPer, after reading abundantrelevan literatUre, domestic and oversea, combing the character of QialluangDaoElectric Power Corporaion, based on Oacle7.3 database we designed a systemwhich ahas at the calculaton.

本文在分析国内外大量文献的基础上，以电网理论线损的计算、分析及预测为目标，并结合秦皇岛电力公司的特点，应用Powerbuilder6.5编程语言设计开发了基于Oracle7.3网络数据库的电网理论线损计算、分析及预测系统。

Moreover, this article anatomises the inner environmental conditions of the Grid Company including finance, organizing structure and human resources,marketing, quality of services and relations with clients, technology and innovating ability, analyses the resources be in possession of by the Grid Company and the superior and inferior position of the company.

本文还从财务、组织结构及人员素质、营销状况、服务质量及与客户关系，技术水平及创新能力等方面，对黑龙江省电网公司的内部条件进行了分析，确定了企业所拥有的资源和能力，提出黑龙江省电网公司所具备的竞争优势和劣势。

The real-time electric parameter measurements are very important to ensure the safety of power network and to carry out the attempered automatization of power network.

实时、准确的测量电力参数对保证电网安全、经济运行和实现电网调度的自动化具有非常重要的意义。

Research on intelligent protection and reliability of protection for complex power system in the factory is particularly important.

用户对电网系统的继电保护提出了更高的要求，特别是对大型企业复杂厂区电网继电保护智能化与可靠性的研究显得尤为重要。

Nowadays, fault current is increasing with the increasing of capacity in power system, and it is one of the serious problems, which must be solved.

近年来，随着电力系统容量的不断增加，电网的短路电流也随之增大，目前已成为制约电网运行和发展的一个重要因素。

Finally the flowcharts of the software are given on the basis of digital simulation of control strategy.

这样大的冲击电流会造成并网瞬间电网电压的突然下跌，威胁电网的稳定和安全。

According to the different grid voltage in many countries, a novel multiple output grid-connected inverter is proposed based on DSP control.

针对世界各国电网电压规格种类较多的情况，提出一种基于DSP控制的可输出多个国家电网电压规格的并网逆变器。

Besides, in order to eliminate the effect of grid voltage distortion or disturbance on output current, decoupling control is employed to further improve the quality of output current.

此外，为了消除电网电压畸变或扰动对逆变器输出电流的影响，系统中引入了电网电压前馈解耦控制，改善了系统输出电流的质量。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。