查询词典 power transmission network

For the ill conditioned load flow caused by the error produced in the transformation from electricity quantities to average power, direct current load flow and sensitivity vector are presented to find out the ill node, then by adjusting the load curve and generation curve in a certain principle, which is shown in detail with several flow charts, a new operation mode is reestablished to ensure the convergence of the calculation. Optimal multiplier method is proposed to work out the least square solution according to ill conditioned structural power network. The electricity quantities flow method enhances the reliability and accuracy of the calculation of the power transmission losses.

该方法可根据当前输电网中各个变电站24小时的电量记录，利用电量潮流计算对输电网总线损和各条线路损耗进行计算，使计算的精度满足降损措施分析和指标考核的要求；并且对于由负荷出力曲线转化成平均功率计算潮流时引入的误差，进而导致潮流计算不收敛的情况，采用直流潮流法，依据相角对有功功率的灵敏度向量判断出"网络异常点"，并且给出了解决此种情况的方法流程图；针对结构病态的电力系统潮流计算不收敛的情况，运用非线性约束优化方法中的最优乘子法求解潮流方程的最小二乘解，从而解决了电量潮流法计算理论线损时的收敛性问题，增强了该方法的适用性。

Once the surplus electricity on the island, but also through the 110 kilovolt submarine cable power transmission line and network to the mainland to be out.

岛上电力一旦过剩，又可通过海底电缆110千伏输变电线路，并网向大陆需出。

FACTS technology increases the capacity of the existing transmission network, allowing it to transport more electricity. It also damps power oscillations and reduces the need for new transmission towers and lines.

FACTS技术增加了现有输电网的电力容量，使其可以传输更多电力，还可减弱振动，降低新输电塔和输电线的需求。

In this thesis,we study the information fusion of intelligent garment oriented body area sensor network,aiming at establishing low-power flexible human life signal perception and transmission network,at exploring for medical,sports and other physical and psychological analysis application-specific information fusion methods,and at providing a powerful theoretical framework and system prototype platform for the key functions of intelligent garment technology.Intelligent garment,as cross-hot of many technology fields,has an important significance of application.The research of body area sensor network provides a viable and flexible information perception sensing tools and platform for information on clothing.

本文研究的面向智能服装的体域传感器网络信息融合课题旨在建立低功耗柔性人体生命信息感知和传输网络，并探索针对医学、运动生理和心理分析等特定应用的信息融合方法，为智能服装的关键技术和功能性研究提供一个有力的理论框架与系统原型平台。

With the rapid development of the electric power industry, the utilization of the continuously increased capacity of the generator units, the extraordinary large power grid, and the extra-high voltage transmission network etc., the operation and the management of power system is becoming more and more complex.

电力工业的飞速发展，单机容量的不断增加，电网规模的日益扩大，使得电力系统的运行和管理越来越复杂。

To achieve the circuit capacity of maximal power transmission and least return loss, impedance matching networks are generally inserted in the input and output ports,compnter simulation solves the problem of how to settle the impedance matching network composition and component parameters in high efficiency.

射频电路设计中为了达到最大功率传输、减少回波损耗等电路性能，一般在输入和输出端加入阻抗匹配网络来加以改善，计算机仿真高效地解决了确定阻抗匹配网络结构及各元件参数的问题，通过ADS仿真确定了射频电路中匹配网络的元件最佳参数。

Transmission network"s fault affects power system"s safe and reliable operation directly. Accurate judgement of fault locality and fault type can shorten the time in disposing fault, realize the power supplys quick resumption and lessen the economic losses because of fault.

输电网络故障直接影响电力系统的安全稳定运行，准确的故障区域、故障类型的判断能缩短故障处理的时间，实现故障后的快速恢复供电，减少因停电造成的经济损失。

Through the analysis of practical structure of network and character of generators, considering the generator unit's self-exciting and the overvoltage of the no-load circuit in course of power transmission, a counterplan of Black-Start is drafted out under emergency accident.

通过对这个地区的网架结构和机组特性的分析，并考虑了机组的自励磁问题和送电过程中空载线路的过电压问题，编制了巴盟地区电网的黑启动的预案。

Considering the generator unit's self-exciting, overvoltage of the no-load circuit in course of power transmission, the structure of network and load distribution situation in the area of Heilongjiang, the whole network is divided into four small systems: JingPo Lake, LianHua factory, FuEr factory and HarBin.

结合&黑启动&机组所在区域的电网结构和负荷分布情况，并考虑机组的自励磁问题和送电过程中空载线路的过电压问题，将整个黑龙江电网划分为4 个小系统，即镜泊湖、莲花厂、富二厂和哈尔滨小系统。

To improve the whole power lines transmission capability on the Qinghai-Xizang plateau railway, besides strengthening the structure of transmission network, it is necessary to increase the extendability and application for new transmit electricity technology.

为了提高青藏线输电线路的整体输电能力，除了不断加强电网结构外，还需要加大对输电新技术的推广应用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。