随着热电联产机组的不断投运，供热机组电负荷的调控以及在供热期内的调峰问题受到广泛关注，供热机组在线实时监测系统的应用有助于解决此问题。以吉林松花江热电厂供热机组在线实时监测系统为例，从系统组成、软件功能等方面对在线监测系统的设计与应用进行了详细介绍和分析，并提出了设计注意事项。

Along with the cogeneration units constantly put into operation, the problems of electric load control and peak-load regulation for heat supply unit during heating period have attracted a wide spread attention, and the online real-time monitoring system is helpful to solve these problems. Taking online real-time monitoring system in Jilin Songhua River Thermal Power Plant as an example, this paper investigated the design and application of this system, such as system composition, software function and so on, put forward the matters needing attention in the design as well.