四川电力技术
四川電力技術
사천전력기술
SICHUAN ELECTRIC POWER TECHNOLOGY
2014年
6期
61-64
,共4页
并网%小电源%联切%解列%电力系统
併網%小電源%聯切%解列%電力繫統
병망%소전원%련절%해렬%전력계통
grid integration%small power supply%intertripping%off-the-line%power system
随着国家提倡对可再生能源和清洁能源的开发利用，各类以小型发电机组为独立系统的小电源得以快速发展，小电源的大量并网对电力系统带来的影响日益突出。在分析并网小电源对电网系统各类保护的影响的基础上，提出了各类保护及备自投装置联切并网小电源的技术原则，最后通过四川地区某110 kV变电站小电源联切方案验证了该联切原则的正确性，有利于电网的安全稳定运行。
隨著國傢提倡對可再生能源和清潔能源的開髮利用，各類以小型髮電機組為獨立繫統的小電源得以快速髮展，小電源的大量併網對電力繫統帶來的影響日益突齣。在分析併網小電源對電網繫統各類保護的影響的基礎上，提齣瞭各類保護及備自投裝置聯切併網小電源的技術原則，最後通過四川地區某110 kV變電站小電源聯切方案驗證瞭該聯切原則的正確性，有利于電網的安全穩定運行。
수착국가제창대가재생능원화청길능원적개발이용，각류이소형발전궤조위독립계통적소전원득이쾌속발전，소전원적대량병망대전력계통대래적영향일익돌출。재분석병망소전원대전망계통각류보호적영향적기출상，제출료각류보호급비자투장치련절병망소전원적기술원칙，최후통과사천지구모110 kV변전참소전원련절방안험증료해련절원칙적정학성，유리우전망적안전은정운행。
With the development and application of renewable energy and clean energy, a variety of small power supply which takes small generating set as the independent system has rapidly developed, so the influence brought by the integration of the large amount of small power supply on power system become increasingly outstanding.Based on the analysis of the influence of grid-connected small power supply on various protections, the technical principle is proposed, that is, the grid-connected small power supply is intertripped by various protections and automatic transfer switching equipment.Finally, the small power supply intertripping scheme for a 110 kV substation in Sichuan verifies the correctness of the proposed intertripping principle, which is beneficial to the safe and stable operation of power grid.
