设计了一种利用网络拓扑技术实时监视电网稳定断面运行方式的在线应用软件。根据电网不同的运行方式 ,自动选择合理的控制断面及其限值 ,并实时计算断面功率。如果满足运行方式的稳定断面重载或越限 ,可及时发送报警信息 ,使调度员能及时了解断面的运行状况并采取正确措施 ,消除电网安全运行隐患 ,确保电网的安全稳定运行 An online application software designed by using network topology technology to monitor the stable operation of power grid in real time is designed. According to the different operation modes of the power grid, the reasonable control section and its limit value are automatically selected and the section power is calculated in real time. If the operating mode of the stable cross-section overload or overrun, timely sending alarm information, so that dispatchers can keep abreast of the section of the operating conditions and take appropriate measures to eliminate the hidden dangers of the power grid to ensure safe and stable operation of the power grid