电网

Then these sections are replaced by some equivalent simple branches to form the simplified network model .

提出一种基于简化网络模型的复杂中压配电网可靠性评估算法。

Further more, in order to damp the resonance between the passive filter and the equivalent inductance of the power network an injection type of active power filter is adopted.

为了抑制无源支路跟电网等效电感产生的谐振以及改善无源滤波器的滤波性能，系统中采用了谐振注入式有源滤波拓扑。

The method of equivalent resistance based on the data of the SCADA and electric power management MIS was put forward according to the result of our research.

文章对该法进行详细的阐述并建立了配电网线损计算等值电阻法的计算模型。

A new robust estimation method against error in power system based on immune fuzzy clustering is presented.

提出了一种基于免疫进化模糊聚类算法的电网抗差状态估计方法。

To each scheme of DG's site and size generated by genetic algorithm, this paper considers the effect of DG on power flow and line loading ability of distribution network. After processing distribution network expansion planning using branch exchange based simulated annealing algorithm, every result of integrated DG and network scheme is judged by economic evaluation.

对于遗传过程中每个分布式电源位置和容量方案个体，考虑了分布式电源对配电网潮流和线路负载能力的影响，运用基于支路交换的模拟退火算法规划扩展网络，对分布式电源和网络的综合规划结果进行经济性评估以衡量个体方案的优劣。

In order to improve the reliability of the nuclear Generating Sets and the stabilization of the power system, prevent the long time low frequency oscillation caused by the disturbed of the outside electrical net, assured improving the stabilization margin of the nuclear generating sets in the precondition of enough transient stability, validate the sensitivity of the parameter to the damping of Generating Sets of the MEC5220 digital excitation adjustor produce in Japan that used in the Second Project of Qinshan Nuclear Power Plant, confirm the parameter rationality of the digital excitation adjustor, optimize the parameter of PSS, in this paper, we put up a in-depth study to the principle of MEC5220 digital adjustor produce in Japan by the PSS/E software that develop by the PTI Company in the USA, completed the modeling of the excitation adjustor, PSS, generator, excitor, described the performance of this excitation adjustor, analyzed the essential reason that caused the low frequency oscillation, illuminated the factor that influence the damping characteristic of the MEC5220 digital excitation adjustor. Based on model and emulate, this paper optimized the primary parameter of the excitation adjustor, make a reasonable regulation to the PSS parameter.

为提高核电机组的运行可靠性和接入系统的安全稳定性，防止在外电网的干扰下核电机组发生长时间的低频振荡，保证机组在暂态稳定的前提下提高其稳定裕度，验证秦山核电二期核电机组所配日产MEC5220型数字式励磁调节器参数对机组阻尼的灵敏性，确定数字式励磁调节器的参数的合理性，优化PSS整定参数，本文利用美国PTI公司研发的PSS／E软件对日产MEC5220型数字调节器的原理进行进行了深入细化的研究，完成了励磁调节器、PSS、发电机、励磁机的建模，描述了该型励磁调节器的性能，分析了产生低频振荡的根本原因，阐明了影响阻尼特性的因素。

With the rapid development of Tianjin, the reliability of distribution networks has become increasingly exigent.

随着天津城市的快速发展，对配电网的可靠性提出了越来越高的要求。

Moreover,the system is designed with the object-oriented technology,so it is general and readily expansible.

研究配电系统的可靠性和经济性，首先要有一套能有效计算配电网可靠性指标的办法。

The PMU-phasor measurement unit has been placed in the power system expansively, and the PMU measurements have become another important data source.

随着相量测量装置在电网中的推广应用，PMU量测已成为电力系统重要数据源之一。

The PMU-phasor measurement unit, has been placed in the power system expansively, and the PMU measurements have become another important data source.

随着相量测量装置（PMU—phasor meeasurement unit）在电网中的推广应用，PMU量测已成为电力系统重要的数据源之一。

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。