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本文(2019年海南小升初语文真题及答案 (1).doc)为本站会员(阿甘)主动上传,文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知文库网(发送邮件至13560552955@163.com或直接QQ联系客服),我们立即给予删除!

2019年海南小升初语文真题及答案 (1).doc

1、注重当前利益而忽视长远利益的做法,应提倡资产全寿命周期管理的理念,解决当前和长远利益权衡问题。 Distribution automation technology involves a wide range, large amount of investment, it is necessary to consider the future development needs of the enterprise, make full use of, and focusing on the existing system therefore, electric power enterprise

2、s from technology, management measures, prepares for the expansion and the functions of distribution automation system. In actual production, should be the development and utilization of system module and function management scalable advanced equipment and strong; and in the management process, to a

3、bandon the traditional focus only on immediate interests while ignoring the long-term interests, should be to promote the management of asset life cycle theory, solve the immediate and long-term interests weighing.三、配网自动化技术未来的发展趋势 Three, the future development trend of distribution automation techno

4、logy随着科技的发展,配电网自动化展现出配电系统的智能化、羟丙基甲基纤维素自动化,信息化和互动化的新特征。配电自动化技术的未来发展趋势体现在以下七个方面。 With the development of science and technology, the automation of distribution network show the intelligent, automatic power distribution system, the new characteristics of information and interaction of the. The future d

5、evelopment trend of distribution automation technology is embodied in the following seven aspects.1.配网自动化的综合型受控端 Integrated 1 Distribution Automation controlled end新型综合受控端基于高速SCADA系统,可以实现电网信息的快速采集和信号的综合处理,并且大大减少了受控端的数量,从而使系统的规模得到简化。这种受控端不仅具有以往终端所具有的功能,还可以实时监测系统的潮流分布、电压情况、系统是否产生震荡、频率是否满足要求等,将这些信息传递给主

6、控方,供进一步分析使用。同时,这些受控端之间还可以进行相互通信,进一步提高数据的精确程度。 A new integrated control end of high speed SCADA system based on the integrated treatment, fast acquisition and signal can realize the network information, and greatly reduced the number of controlled end, so that the scale of the system is simplified. T

7、he controlled end not only has the function of terminal, can be real-time monitoring system of power flow distribution, voltage, frequency, whether the system meets the requirements of, pass the information to the master, for further analysis of the use of. At the same time, communicate with each ot

8、her but also between these controlled terminal, further improve the accurate degree of data.2.配电线路载波通信技术和基于因特网的IP通信技术 2 distribution line carrier communication technology and IP communication technology based on Internet通信系统一直是配电网自动化的难点之一。在10kV及以下的配电系统里,由于受控端数目多,对通信的要求也显着提高。因此,如果要实现系统潮流实时监测、频率控制等需求,

9、稳定的大容量的高速载波通信系统是必备的。该系统不仅可以满足上述需求,还可以为客户提供更多的生活服务,如电力线上网等。另外,光纤通信具有容量大、可靠性高、传输速率高等优点,已成为主流通信系统的首选。随着成本的降低,采用光纤通信作为配电系统自动化的主干通信网已得到普遍共识。随着通信技术的进步,基于城市光纤网的IP通信技术充分利用了光纤通信技术抗干扰能力强、误码率低、传递快速和IP通信方式的通用兼容性接口等优越性,可望成为智能配电网自动化系统的前沿通信技术。 Communication system is always one of the difficulties of distribution

10、network automation. In the following 10kV and distribution systems, due to the controlled end number, the communication requirements are also significantly improved. Therefore, if we want to realize real-time monitoring, system load frequency control demand, high-speed carrier communication system w

11、ith large capacity and stable is necessary. The system can not only meet the above requirements, can also provide more service for customers, such as power line etc. In addition, optical fiber communication has a large capacity, high reliability, high transfer rate, has become a mainstream communica

12、tion system preferred. With lower costs, using optical fiber communication as the backbone communication network for distribution system automation has been a general consensus. With the progress of communication technology, the universal interface compatibility and advantages of IP communication te

13、chnology city of optical fiber network based on the full use of the optical fiber communication technology, strong anti-interference ability, low error rate, fast delivery and IP communication mode, is expected to become the automation system of intelligent distribution network of communication technology.3.定制电力技术 3 Custom Power Technology定制电力技术是柔性配电系统的实际应用,它将智能电网技术、柔性送电技术、云计算技术等高科技技术用于中低压配电网,用以消除谐波,防止

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