【摘要】 分析了220 kV电网因结构不合理可能导致的减负荷问题,针对220 kV母线原因引起的减负荷及220 kV线路原因引起的减负荷2类变电站全站失电情况,给出了新建变电站与系统第3回联络线、将部分负荷转移到其他变电站、改造220 kV母线、将变电站与另1个由500 kV变电站供电的220 kV系统进行强联络等解决措施。对内蒙古某地区实际电网的减负荷隐患点进行了分析,提出了网架的优化措施,并对优化后的电网进行了潮流、暂态稳定及短路计算分析,验证了方案的可行性。更多还原

【Abstract】 Analysis of load reduction problems in the 220 kV grid due to the unreasonable structure was made.According to the 220 kV load reduction situation caused by the bus and the circuit,the paper gave the measures of constructing the third contact line between substation and system,transferring part of the load to the other stations,modifying 220 kV bus,setting strong contact between the 220 kV system of power supply substation and the other 500 kV substation.An actual power grid load reducing hazard points were analyzed,gave the optimization measures of the network,and the optimized network was calculated in analyzed current,transient stability and short circuit,verified the feasibility of the schemes.更多还原