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名人名言:看见大佛朝上拜,看见小佛踢一脚 - 民谚
7、我国建设智能电网具有哪些有利条件?
答:多年来,我国电力行业大力加强电网基础建设,同时密切关注国际电力技术发展方向,重视各种新技术的研究创新和集成应用,自主创新能力快速提升,电网运行管理的信息化、自动化水平大幅提高,科技资源得到优化,建立了位居世界技术前沿的研发队伍和技术装备,为建设智能电网创造了良好条件。
(1)在电网网架建设方面,网架结构不断加强和完善,特高压交流试验示范工程和特高压直流示范工程成功投运并稳定运行;全面掌握了特高压输变电的核心技术,为电网发展奠定了坚实基础。
(2)在大电网运行控制方面,具有“统一调度”的体制优势和丰富的运行技术经验,调度技术装备水平国际领先,自主研发的调度自动化系统和继电保护装置获得广泛应用。
(3)在通信信息平台建设方面,建成了“三纵四横”的电力通信主干网络,形成了以光纤通信为主,微波、载波等多种通信方式并存的通信网络格局;SGl 86工程取得阶段性成果,ERP、营销、生产等业务应用系统已完成试点建设并开始大规模推广应用。
(4)在试验检测手段方面,已根据智能电网技术发展的需要,组建了大型风电并网、太阳能发电和用电技术等研究检测中心。
(5)在智能电网发展实践方面,各环节试点工作已全面开展,智能电网调度技术支持系统、智能变电站、用电信息采集系统、电动汽车充电设施、配电自动化、电力光纤到户等试点工程进展顺利。
(6)在大规模可再生能源并网及储能方面,深入开展了集中并网、电化学储能等关键技术的研究,建立了风电接入电网仿真分析平台,制定了风电场接入电力系统的相关技术标准。
(7)在电动汽车充放电技术领域,我国在充放电设施的接入、监控和计费等方面开展了大量研究,并已在部分城市建成电动汽车充电运营站点。
(8)在电网发展机制方面,我国电网企业业务范围涵盖从输电、变电、配电到用电的各个环节,在统一规划、统一标准、快速推进等方面均存在明显的优势。时,电网可综合利
8、什么是坚强智能电网?
答:坚强智能电网是以特高压为骨干网架、各级电网协调发展的坚强网强为基础,以通信信息平台为支撑,具有信息化、自动化、互动化特征,包含电力系统的发电、输电、变电、配电、用电和调度的各个环节,覆盖所有电压等级,实现“电力流、信息流、业务流”的高度一体化融合的现代电网。
9、为什么必须以坚强为基础来发展智能电网?
答:竖强的内涵是指具有坚强的网架结构、强大的电力输送能力和安全可靠的电力供应。坚强的网架结构是保障安全可靠电力供应的基础和前提,强大的电力输送能力,是与电力需求快速增长相适应的发展要求,是坚强的重要内容;安全可靠的电力供应是经济发展和社会稳定的前提和基础。足电网坚强内涵的具体体现。以坚强为基础来发展智能电网,可以提高电网防御多重故障、防止外力破坏和防灾抗灾的能力,能够增强电网供电的安全可靠性:可以提高电网对新能源的接纳能力,推动分布式和大规模新能源的跨越式发展;可以提高电网更大范围的能源资源优化配置能力,可充分发挥其在能源综合运输体系中的重要作用。所以,必须以坚强为基础来发展智能电网。
10、为什么要建设以特高压电网为骨干网架的坚强智能电网?
答:随着国民经济的持续快速发展和人民生活水平的不断提高,我国电力需求较快增长的趋势在较长时间内不会改变。同时,我国能源与生产力布局呈逆向分布,能源运输形势长期紧张。但目前我国电网发展相对滞后,在能源综合运输体系中的作用还不明显。这些在客观上要求加快转变电力发展方式,提升电网大范围优化配置能源的能力,建设以特高压电网
为骨干网架的坚强智能电网足满足这一要求的必然选择。
特高压输电具有远距离、大容量、低损耗、高效率的优势,建设以特高压电网为骨干网架的坚强智能电网,能够促进大煤电、大水电、大核电、大型可再生能源基地的集约化开发利用。同时,特高压电网可以提升电网抵御突发性事件和严重故障的能力,进一步提高电力系统运行的可靠性和稳定性,使坚强智能电网建设具备坚实的网架基础。
因此,在坚强智能电网建设中,必须以特高压电网为骨干网架,连接大型能源基地及主要负荷中心,以更好地保障国家能源供应和能源安全,满足经济社会快速发展的需要。
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