潮流

Therefore, it is important to research on unsolvable power flow , an.

因此，研究潮流无解问题，提出潮流无解调整方法具有重要的现实意义。

The voltage drops on two terminals and the total self-impedances of the feeder remain unvaried before and after using the T-BVDM.

文中给出了一些算例，并与严格潮流计算方法进行了比较，结果表明提出的简化方法的近似精度高，并且在应用到基于遗传算法和模拟退火算法等随机优化算法的配电网络重构时，可大大提高潮流计算效率。

A new optimal power flow model with reliability constraint is proposed to obtain an economic and secure operation schedule of the power system, where the reliability index constraint is constructed based on z transform theory to take the uncertainties of electric power system into account, and the objective aims at minimizing the total cost of the system to satisfy the expected loss of load probability.

提出一种考虑可靠性指标的最优潮流模型。该模型能考虑系统中的随机因素，通过z变换法构造电力系统的可靠性指标约束，将该约束添加到经典最优潮流模型中共同求解，从而使电为系统的调度或控制能在满足一定的失负荷概率指标的前提下实现最优运行。

Based on this work,the distribution of M2 tidal current ellipse,the cotidal current line and the horizontal structure of tide current field are studied.

在较准确地模拟了潮汐分布的基础上，研究了M2分潮流椭圆分布、最大流同时线分布以及潮流场结构。

Then, interruptible load is introduced into transmission congestion management in the paper. The paper discusses the application of interruptible load to transmission congestion management in power pool market. Market risk of evade is very important in transmission congestion management. The FGR, FTR, TO are introduced into transmission congestion management, its concept and implement in bilateral market are discussed in the paper. It provides the valid means of evadable price risk for the market participant. The reasonable allocation of congestion cost is very important in transmission congestion management. The paper proposed a novel methodology for allocation of congestion cost based on the line flow analysis.

然后，将可中断负荷引入到输电阻塞管理中，对其在电力联营体交易市场模式下输电阻塞管理中的应用进行了全面阐述；市场风险的规避是输电阻塞管理中需要考虑的重要内容，本文将基于潮流的输电权、金融型输电权及输电期权引入到输电阻塞管理中，阐述了其基本概念以及在双边交易市场模式下的具体实施，为市场参与者提供了规避价格风险的有效手段；阻塞费用的合理分摊是输电阻塞管理中的重要内容，本文提出了一种基于阻塞线路潮流组成分析的阻塞费用分摊新方法。

Facts have incontrovertibly proved that the decision to begin reform and opening up is vital to the destiny of contemporary China, that reform and opening up are the only way of developing socialism with Chinese characteristics and rejuvenating the Chinese nation, that only socialism can save China and that only reform and opening up can develop China, socialism and Marxism.

最根本的是，改革开放符合党心民心，改革开放符合党心民心，顺应时代潮流，方向和道路是完全正顺应时代潮流方向和道路是完全正确的，成效和功绩不容否定，确的，成效和功绩不容否定，停顿和倒退没有出路。

Different style, good quality and exquisite making are always Kobi's fashion pursues, in order to move with modern fashion and the latest fashion trends and to be a fashion leader, we are always renovating our thinkings in choosing materials, in designing and modeling.

款式风格多样，品质上乘，工艺精致。公司坚持走中高档的品牌路线，在面料选用，款式设计，制板等工艺方面都不断追求创新，紧贴时尚潮流，时刻把握服装的最新动态，成为时尚潮流的领头兵。

After flow and transient stability calculating of the 330kV grid, we got the over-load and hazard lines set. Then we gained the redundant network needed to be built according to the increasing power supply and load in 2010. Adopting regradation step-by-step algorithm by which we can improve the calculation efficiency , we compared the validity of every line, deleted lines with low validity until no redundant line is in the network. At last we got the target network framework adopting the improved ant colony algorithm. Flow distribution, construction investment assessment and target framework of Gansu long-term planning all be considered, from the viewpoint of to be economic and reliability the feasibility of the improved ant colony algorithm is discussed.

在对2006年该网架结构进行了潮流计算与暂态稳定计算分析后，得出了系统的过负荷与危险线路集，并针对2010年新增的电源和负荷点确定了冗余的待建网架，然后利用逐步倒推法比较各待选线路在系统中的有效性，逐步去除有效性低的线路，直到网络中没有冗余线路为止，以此来以提高优化算法的计算效率，最后利用改进后的蚁群算法确定优化后的目标网架结构，并从潮流分布、建设投资估算等方面与甘肃电网远期规划中确定的目标网架进行了比较，从可靠性和经济性角度论证了改进蚁群算法在网架优化中的可行性。

VARSDEN, a design derived from the trend of the British brand to the product of the immortal classic fashion - tannins at the core, our innovative approach, will be the trend to maximize Rhodanine cowboy, to perform a most unique "Rhodanine frenzy."

VARSDEN，一个设计源自英国的潮流品牌，以不朽的经典时尚产物--丹宁为核心，秉承创新的态度，将潮流丹宁牛仔发挥到极致，淋漓尽致地演绎了一场独特的&丹宁狂潮&。

While temporizing the tide, we should also face the problems hiding behind the tide and take some meditation.

在顺应时代发展潮流的同时，我们也不得不面对潮流背后所隐匿的问题而有所反思。

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。