小眼井最优水力学设计及分析

在充分考虑小眼井钻井特点和合理确定环空压耗的基础上，将喷射钻井理论和环空携岩理论有机结合起来，导出了在两种工作方式下优化设计小眼井钻井水力参数模型，并开发了应用软件。通过实例计算，提出了在小眼井最优水力学设计中采用最大水功率工作方式的重要性，并建议在大眼井的水力参数设计中考虑钻柱的偏心、旋转和钻杆接头对环空压耗的影响。     

Multiobjective dynamic load-dispatching method for optimal operation of power systems

A new practical method is proposed which gives a quasi-optimal solution of the dynamic load-dispatching problem formulated by a multiconstraint multiobjective optimization problem. Here, the multiple constraints are rate reserve constraints and power flow ones, and the multiple objectives are fuel cost and CO₂ emission. The proposed method is an integration of the following three techniques: (1) “Group Dispatch Scheme,” which is developed by the authors, is used to satisfy a violated constraint easily. This scheme consists of three steps. The first step is to classify all generators into two groups. One is the group which should be more loaded to satisfy the violated constraint, and the other is the should-be less loaded group. The second step is to add some load to the former group, and to subtract the same load from the latter. The third step is to dispatch each group load to each groups generators, respectively; (2) the dynamic load-dispatching algorithm is used which provides, in practical time, quasi-optimal generation trajectories; (3) the conventional weighting parametric method is used to obtain a Pareto optimal solution of multiobjective problems. The effectiveness of the method is clarified by a computer simulation on the actual power system of Kansai Electric Power Company.     

Expert system for dispatch control in restoration of ehv power system after complete blackout

Present-day power systems operate with high reliability, and it is rare that a blackout will extend over an entire system swiftly and securely. This paper considers automatic power supply to loads after a complete blackout of a system. First, taking into account characteristics of generators, loads, and initial power sources, a method is proposed of allocating several generators to each load in parallel to the system and supplying power to the load sequentially. Second, to remove the imbalance between supply and demand of power, a method is proposed of adjusting the amount of supply and generation according to a present imbalance and the sum of past ones. Third, to automatically issue orders for start-up, parallel, follow-up, stand-by, and stoppage of generators, several rules for each power station are set and an expert system is made based on them. Finally, the expert system is applied to a model power system, and it is verified that it can restore loads without any trouble for a complete blackout which occur at any time of a day and in any restoration pattern.     

A．MT．3000断面测量系统及其应用

Ａ．ＭＴ．３０００断面测量系统及其在二滩水电工程中的应用证明，该系统简比了断面测量方法，能有效地提高工作效率，在水电等工程建设中具有明显的经济效益。     

太钢3#高炉重力除尘器大件吊装

太钢3#高炉大修改造是集团公司重点外部工程项目之一，工程量大，工期紧，施工场地狭小，而质量要求较高。如何采取科学、经济的设备吊装方案，对整个项目经济指标的实现，意义重大。文章详细介绍了太钢3#高炉重力除尘器大件整体吊装方案。通过实际采用，取得良好的经济效果。     

本钢7号高炉中控室10kV供电系统技术分析及改进方案实施

根据7号高炉中控室供电状况，进行了供电平衡分析。调整两段负荷，使供电平衡安全。     

2005年日本爱知世界博览会的规划和展馆建筑

会期半年的2005年世界博览会已于3月25日在日本爱知县开幕。本文紧扣本届世博会“自然的睿智”这一主题，从世博会历史和本届世博会背景入手，通过对会场整体规划和一些有代表性的国家展馆进行分析和点评，阐明“减少环境负荷与可持续发展”的思想在建筑及规划上的具体体现，力求同读者共同探讨和领会世搏会场传递出的21世纪建筑的新思想、新方向。     

应力、强度呈非正态分布时可靠度公式的推导

介绍一种当应力、强度呈非正态分布时的可靠度的计算方法,以用来进行机械可靠性设计,并以一个地震载荷的直立压力容器为例加以说明。     

水轮机调速器与电网负荷频率控制

在现代电力系统中，水轮机调速器已成为水轮机控制系统的控制核心。文中叙述了水轮机调速器与电网负荷频率控制之间的关系，分析了调速器在电网一次调频、二次调频中的作用、静态特性和动态特性;通过建模、仿真及现场试验，提出了机组并联于大电网工况下的调速器PID参数整定范围和应有的机组功率控制模式。     

计算机模拟技术在小型梯级电站群中优化运行的研究

研究了渠道梯级电站群的运行特点，在分析基础上建立了这类电站群化高度的分解协调模型，并采用模拟和动态规划相结合的方法，求解了海南松涛灌区５级电站群的优化调度问题．且求解优化模型的基础上对渠道梯级电站群系统和站内运行提出了具体的调控规则．