共查询到13条相似文献,搜索用时 78 毫秒
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为加快农村经济发展 ,切实减轻农民负担和扩大内需范围 ,国家投入巨资加大对农村电网的建设与改造力度。并通过改革农电管理体制 ,改造农村电网 ,使农网网架趋于合理 ,从而提高网络的供电可靠性 ,将电网损耗降到合理水平 ,以实现城乡用电同网同价的目标。随着经济的发展 ,农村用电负荷迅速增大 ,同时无功需求也不断加大。合理地进行无功补偿不仅可以解决无功不足的现象 ,而且也是提高电压质量 ,减少线损 ,增强供电可靠性的主要措施。本文结合湖北荆州电力局在农网改造中采取的无功优化方案简要地谈谈农网中的无功补偿。1 农网的现状及无功… 相似文献
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根据县城电网的特点,引出城网配电线路改造中存在的线径选取,负荷划块、电杆选型、环网化和绝缘化改造等一系列技术问题,根据实际工作中的具体做法,结合城网规划导则,提出了一套切实可行的解决办法。 相似文献
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世界电力工业改革模式及其启示 总被引:5,自引:2,他引:3
从结构、竞争、管理3方面总结了世界电力工业改革的几种主要模式,对这些模式进行了简单的评析,并总结出了对我国电力工业改革的几点启示。 相似文献
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This paper proposes a reasonable methodology for computing the service charges for reactive power support and control in an open-access environment. The proposed method consists of two parts: one is to recover the capital costs of installed reactive power facilities, and the other is to recover the operational costs involved in reactive power production. The capital costs are divided into used and unused components, based on capacity usage, and are then recovered by a reactive-power tracing algorithm and a postage stamp rule, respectively. The operational costs are computed using spot prices with an optimal power flow program. Sample studies verify that the proposed method exhibits good results in practice compared with the real-time pricing method only. Moreover, the trend of reactive power charges with capacity variations of capacitor banks would help to determine the size of capacitor banks at the planning stage. 相似文献
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Recent years have witnessed wide interest of the society in the problem of shale gas with its being discussed at different levels, up to political ones. The data on the shale gas resources worldwide and in individual regions are analyzed. The possibilities of shale gas production and prospects of using it for replacing the supplies of natural gas to Europe from Russia are evaluated. Matters concerned with the consumer properties of shale gas are considered. The likelihood of using shale gas in the thermal power industry of Russia is estimated. 相似文献
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低氮燃烧改造在电厂应用研究 总被引:1,自引:0,他引:1
为满足国家环保对火电厂氮氧化物排放要求,以及在运机组采用“先降后脱”的脱硝指导思想,利用3号机组大修,完成了低氮燃烧器改造。通过主喷嘴局部改造,增加燃尽喷嘴;可以有效降低NOx排放,保证锅炉效率。 相似文献
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