变电站外文翻译

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1、 Power System Substation is an important and indispensable component of the power it assumed the task of conversion and distribution of grid security and the economy play a decisive role in running is to contact the users power plants and intermediate links. With economic development, expanding grid

2、 capacity, reliability of operation of the power grid is getting higher and higher requirements. Development of science and technology, intelligent switches, photoelectric current and voltage transformer, a run-line state detection, training simulation Substation Operation matures, such as high-tech

3、, as well as fiber-optic technology, computer high-speed network system in the development of real-time applications, bound to the existing substation automation technology have a profound impact, all-digital substation automation system development trend. Power system is operated by the production,

4、 transmission, distribution and consumption of a variety of power linked to the composition of electrical equipment. As a result of a large number of power can not be stored, we must ensure that the production of electricity and energy balance. With the scientific and technological advances in the t

5、echnological development of our country has reached a certain level. Intelligent switches, photoelectric current and voltage transformer, a run-line state detection, training simulation Substation Operation matures, such as high-tech, as well as fiber-optic technology, computer high-speed network sy

6、stem in the development of real-time applications, significantly increase the transformation degree of automation. Design of our substation substation cable programs tend to be simple, many of the recent domestic new 220 k V substation and 110kV voltage levels of wiring without the use of dual-bus b

7、ypass bus. The use of GIS, the priority sub-bus single wire. Terminal Substation, the line as far as possible, such as transformer unit wiring. A large number of the introduction of new technology, transformer substation rising level of electrical equipment, power distribution devices from the tradi

8、tional form of moving toward oil-free, vacuum switches, SF6 switches and mechanical, electrical equipment combination of the development of small-scale integration. In recent years the world famous high-voltage electrical equipment companies have been developing, the development of the various types

9、 of 145-550 kV outdoor high-pressure and ultrahigh-pressure combination of electrical appliances, some high-voltage switchgear plant has also started production of 145 k V compact outdoor portfolio electrical appliances. Smart plug-in type outdoor switchgear is a more complete high-pressure and ultr

10、ahigh-pressure switch system, which includes electrical first and second equipment, as well as the associated fiber optic cable, such as plug-type compound. The entire distributed substation automation system； the introduction of advanced network technology； substation and the construction area cove

11、rs an area of reduced substation program to simplify wiring, switchgear, bus and steel pipes, such as the use of stents to substation layout is more simple, the abolition of the former station area and optimize the layout to make a substantial decline in an area substation. With technological advanc

12、es, the traditional relay protection devices are gradually being replaced by microprocessor-based protection. Microprocessor-based protection is referred to as the protection of PC computer, a digital relay protection, is based on the programmable digital circuit technology and real-time digital sig

13、nal processing technology of the Power System Protection. At present, both at home and abroad have been developed to 32-bit digital signal processor for hardware-based protection, control, measurement, and data communications integration of microprocessor-based protection control devices, and artifi

14、cial intelligence technology into a number of relay protection, such as artificial neural networks, fuzzy theory to determine the realization of fault type, fault location, the direction of protection, the main equipment and other new methods of protection. By means of wavelet analysis of the theory

15、 of digital signal failure of the entire frequency band information and to achieve fault detection. These artificial intelligence technology to improve the accuracy of failure to provide a means of identification, but also some single-frequency signal based on the traditional method difficult to ide

16、ntify the problems to be resolved. At present, the microprocessor-based relay protection is along the microprocessor-based protection network, and intelligent, adaptive and protection, control, measurement, signal, data communications integration direction. 译文： 变电站是电力系统中不可缺少的重要组成部分，它担负着电能转换和分配的任务，对电

17、网的安全和经济运行起着举足轻重的作用， 是联系发电厂和用户的中间环节 。 随着经济的发展，电网 容量不断扩大，对电网运行的可靠性要求也越来越高。 科学技术的发展、 智能化开关 ,光电式电流电压互感器 ,一次运行设备在线状态检测 ,变电站运行操作培训仿真等 高新 技术日趋成熟 ,以及 光纤技术、 计算机高速网络在实时系统中的开发应用 ,势必对 现 有的变电站自动化技术产生深刻的影响 ,全数字化的变电站自动化系统 成为发展的趋势。 电力系统是由生产、输送、分配和消费电能的各种电气设备连接在一起组成。由于电能无法大量储存，必须保证用电和电能生产的平衡。随着科学技术的不断进步，我们国家的技术发展已经达

18、到一定的水平。 智能化开关 ,光电式 电流电压互感器 ,一次运行设备在线状态检测 ,变电站运行操作培训仿真等 高新 技术日趋成熟 ,以及 光纤技术、 计算机高速网络在实时系统中的开发应用 ,大大的提高变电自动化程度。 我国变电站设计开始趋向于变电站接线方案简单，近期国内新建的许多变电站 220 k V 及 110kV 电压等级的接线采用双母线而不带旁路母线。采用 GIS 的情况下，优先采用单母线分段接线。终端变电站中，尽量采用线路变压器组接线等。大量采用新的技术，变电站电气设备档次不断提高，配电装置也从传统的形式走向无油化、真空开关、 SF6 开关和机、电组合一体化的小型设备 发展。近年来世界

19、各国著名的高压电气设备公司都相继开发、研制了各种类型的 145-550 kV 户外高压和超高压组合电器，国内一些高压开关厂也已经开始生产 145 k V 户外紧凑型组合电器。户外插接式智能型组合电器是一种功能更完备的高压和超高压开关系统，它内含电气一次、二次设备，以及相关连的插接式复合光缆等。全分散式变电站自动化系统；引入先进的网络技术；变电站占地及建筑面积减少，变电站接线方案的简化，组合电器、管母线及钢支架等的采用，使变电站布置更为简单，取消站前区和优化布置使变电站占地大幅度下降。 随着技术的进步 ，传统的继电保护装置正逐步被微机保护所取代。微机保护是微机计算机保护的简称，是一种数字式继电保护，是基于可编程数字电路技术和实时数字信号处理技术实现的电力系统继电保护。目前，国内外已经研制出以32 位数字信号处理器为硬件基础的保护、控制、测量、及数据通信一体化的微机保护综合控制装置，并将一些人工智能技术引入继电保护中，如用人工神经网络、模糊理论实现故障类型判断、故障测距、方向保护、主设备保护等新方法。用小波理论的数字手段分析故障产生信号的整个频带信息并用于实现故障检测。这些人工智能技术不仅为提高故障判别精度提 供了手段，而且使某些基于单一工