我国特高压直流输电技术的巴西本地化工程实施方案

发布时间：2018-04-05 02:21

本文选题：巴西美丽山输电　切入点：±kV特高压工程　出处：《电网技术》2017年10期

【摘要】：巴西美丽山±800k V特高压直流输电工程是中国首项海外特高压直流输电项目,对加快推进中国特高压技术和装备输出意义重大。分析中国和巴西管理和技术差异对工程实施的挑战,包括,巴西能源和负荷逆向分布、私有化电力管理体制、严密的环保征地监管体系、特许经营权运营模式、差异化技术标准体系、双回直流工程协同运行需求等,对比和借鉴中国长期特高压工程实践,研究提出若干工程优化方案:1)两回直流送端采用换流站同址布置和接地极互为备用技术,提高运行可靠性;2)提出受端交流线路同塔并架新方案,该方案既满足稳定要求,又节约线路走廊;3)里约换流站工程数据中心建设兼顾近期工程实施便利和远期扩建规划,技术经济优势明显;4)沿袭巴西未设置电力专用通信网情况下的当地工程惯例,建立主用和备用通信通道,建设调度数据网、综合数据网、会议电视系统等。上述研究成果和工程优化方案有利于中国特高压技术实现巴西工程本地化实施,并对其他国际工程具有借鉴意义。
[Abstract]:The 卤800kV UHVDC project in Meishan, Brazil, is the first overseas UHVDC project in China, which is of great significance for speeding up the export of UHV technology and equipment in China.This paper analyzes the challenges to project implementation caused by the management and technical differences between China and Brazil, including the reverse distribution of energy and load in Brazil, the privatized power management system, the strict regulatory system for environmental land expropriation, and the operating mode of franchise.The standard system of differential technology, the requirement of cooperative operation of double return DC project, etc., are compared and used for reference in China's long-term UHV project practice.In this paper, a number of engineering optimization schemes: 1) A new scheme of double DC transmission station with the same location arrangement of converter station and mutual ground pole as backup technology to improve the reliability of operation is put forward. The scheme meets the requirements of stability, and the new scheme is put forward for the same tower of the receiving AC line, which can meet the requirements of stability.Saving Line Corridor No. 3) the construction of the project data center of the Rio converter station takes into account the convenience of the recent project and the long-term expansion plan, with obvious technical and economic advantages. 4) following the local engineering practice in the absence of a special electric power communication network in Brazil.Establish main and standby communication channels, build dispatching data network, integrated data network, video conference system, etc.The above research results and engineering optimization scheme are beneficial to the localization of Chinese UHV technology in Brazil and can be used for reference in other international projects.
【作者单位】：国家电网巴西控股公司;
【分类号】：TM721.1

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