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电网技术  2006 

广东电网区域负荷裕度分析

, PP. 30-34

Keywords: 电力系统,广东电网,静态电压稳定,电压稳定指标,区域负荷裕度,敏感性分析

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Abstract:

运用区域负荷裕度判别法研究了2005年丰大基本运行方式下广东电网的静态电压稳定性,定义了区域有功负荷裕度指标,并就广东电网500kV交流线路N-1开断、直流系统停运对该指标的影响进行了敏感性分析。结果表明,区域负荷裕度适于作为静态电压稳定的安全指标;珠江三角洲重负荷区域和粤东地区负荷裕度小,是静态电压安全的薄弱区域;影响负荷裕度较大的关键线路是西电馈入广东的联络线以及沙鹏线、岭东线、东惠线;直流系统停运导致负荷裕度下降较大,其中贵广直流系统产生的影响最大,天广和三广直流系统次之。运行人员应重点监控以上薄弱区域和关键线路。

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