| 城网220kV长电缆对系统无功电压控制的影响研究 |
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| 引用本文： | 乐晓蓉.城网220kV长电缆对系统无功电压控制的影响研究[J].江苏电器,2016(5). |
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| 作者姓名： | 乐晓蓉 |
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| 作者单位： | 江苏省电力设计院,江苏 南京,210002 |
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| 摘 要： | 城市220 k V长电缆的大量应用造成电网无功电源容量过剩,导致系统电压过高,分析了高压电缆对电网产生的无功电压问题及系统无功电压调节方法,结合具体案例提出在附近变电站加装感性无功补偿装置、减少无功电源出力等措施来补偿电缆增加的充电功率,实际应用表明,该措施可对电网无功电压问题起到很好的治理效果,保障了电网安全稳定运行。
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| 关 键 词： | 高压长电缆 无功补偿 电压调节 低压关联电抗器 |
Study on Influence of 220 kV Long Cables on Reactive Power Voltage Control in Urban Power Grid |
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| Abstract: | Application of 220 kV long cables in quantities leads to surplus reactive generation capacity in grid and overhigh system voltage. This paper analyzed the reactive voltage problem from high voltage cables and system reactive voltage adjustment method. Combined with a concrete case, this paper proposed to install inductive reactive power compensation device and to reduce reactive power supply contribution to compensate battery charging power. The practical application shows that this measure has good governance effect for the problem of reactive voltage in grid, to guarantee grid safe and stable operation. |
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| Keywords: | high-voltage long cables reactive power compensation voltage control low-voltage shunt reactor |
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