【摘要】 系统电压水平一定时输电元件的长期有功载荷能力也一定，对这一能力进行修正可以显著提高最大可用输电能力的计算精度。文章通过修正元件容许的长期载荷能力，基于直流潮流及其分布因子实现了最大可用输电能力的快速计算。算例结果表明，该方法与其它方法相比能有效提高计算精度，且计算速度有明显的优势，适用于大电力系统。更多还原

【Abstract】 When power system voltage is a certain fixed value, the long term active load capability of the transmission components are correspondingly fixed, so the calculation accuracy of maximum available transfer capability can be improved by revising the long-term permissible active load capability. Here, on the basis of DC power flow and its distribution factors the fast calculation of maximum available transfer capability is implemented while the long-term permissible active load capability is revised. The results of calculation examples show that with the proposed method the calculation accuracy can be effectively improved as well as the calculation speed and the proposed method is available for large-scale power system.更多还原