| 1. | Optimal planning of high voltage distribution substations 高压配电变电站的优化规划 |
| 2. | Distribution substation is an important component part of distribution net ; therefore , the automation degree of distribution substation can directly reflect the level of distribution automation 配电变电站是配电网的重要组成部分,因此配电变电站的自动化程度的高低,直接反映了配电自动化的水平。 |
| 3. | Examples show that the algorithm proposed meets the requirement of engineering and it is an effective approach to settling the problem of optimal planning for high voltage distribution substations with fast speed 算例表明,该方法可以求得工程上的满意解,并且计算速度快,是求解高压配电变电站优化规划问题的有效方法。 |
| 4. | Electrical cad technology is a new technic of computer science compositive applications in electrical engineering design domain . it is not only very necessary but also fully possible to use the new computer technology to finish power supply and distribution substations design 电气cad技术是计算机技术在电气工程设计领域综合应用的新技术,利用计算机技术来完成供配电所的电气设计工作不仅十分必要,而且是完全可能的。 |
| 5. | The third chapter introduces the fundamental demand of distribution substation automation . the forth chapter introduces the design of circuit diagram of the automation equipment of distribution substation ? net instrument . it elaborates the function and composes of main parts 第二章介绍了配电自动化的主要内容;第三章为配电变电站自动化的基本要求;第四章给出了配电变电站自动化装置? ?网络仪表的硬件电路设计,阐述了主要电路的组成及功能;第五章为软件设计。 |
| 6. | Technical question of construction of electrical engineering graph and dynamic connection between graphics entity object and backend data are also solved . it has set up the total frame of intelligent power supply and distribution substations " primary cad system , which realized the integration of analysis , calculation , cartography and data processing 系统基于windows操作平台,采用可视化编程语言visualbasic . net和通用绘图软件autocad作为开发工具,运用专家系统支持的智能化技术、 activex二次开发autocad技术和数据库技术,实现了变电所一次回路的智能设计、数据处理和自动绘图一体化。 |
| 7. | Finally , some methods automatically select the optimal location of distribution substations without candidate substation location . and they may be optimal in a short term . but the substation location ca n ' t be optimal in a long range unless it is directed by the long term distribution planning 最后,在变电所选址过程中,虽然有些算法不需要候选所址,进行随机搜索确定变电所位置,但它们未考虑选址过程中电力规划专家的选择和判断所起的决定性作用,很难实现电力系统的长期最优。 |
| 8. | In order to ensure the whole system operate economically , power department equip transformer with onload tap changer and shunt capacitors for most distribution substations , according to the operating condition , adjusting the position of transformer taps and capacitors can control the variation of voltage and reactive power exchanger of distribution substations and power system in certain extent 为确保整个系统运行经济性,降低网损,电力部门在大多数变电站配置了有载调压变压器和并联补偿电容器组,根据运行情况适当调节变压器分接头的位置和投切并联补偿电容器组,可以降低电压变化和变电站与系统的无功交换控制在一定的范围内,确保供电质量和电网运行的经济性。 |
| 9. | This article has discussed the control problem in a distribution substation and on the distribution line respectively . reactive power / voltage control in a substation using general approach usually results in the voltage of the second side being too close to the boundary . it will make the ability of enduring the variation of load in a system decrease a lot and become the threat of the system 本文分别对配电系统中的变电站及配电线路的无功电压优化控制问题进行了研究,采用常规方法进行变电站电压无功控制时,往往使二次侧电压过于接近边界而导致系统承受负荷波动的能力大大下降,成为系统安全运行的隐患。 |