张勇军;李启峰;梁锦照;

• 1:广东省绿色能源技术重点实验室(华南理工大学)
• 2:中山供电局

摘要(Abstract)：

建立了220/20 kV序列的电网模型,推导了变电站投资、网损费用及电网投资年费用关系式。引入精神磨损理论分析旧序列电网的隐形价值流失,通过比较新、旧电网年费用可制定合理的电网改造投资决策。分析了新建区域和旧网改造情况下220/110/10、220/110/20、220/20 kV 3个电压序列的技术经济性,建议新建区域考虑采用220/20 kV电压序列供电,投运时间超过15 a且负荷密度大于33 MW/km2时,将原电网220/110/10 kV电压序列改造为220/20 kV电压序列能取得良好的经济效益。

关键词(KeyWords)： 220/20kV;负荷密度;电网规划;精神磨损

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 张勇军;李启峰;梁锦照;

Email:

DOI: 10.13335/j.1000-3673.pst.2011.08.029

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