基于Matlab的大型火电机组一次调频特性仿真

Matlab-Based Simulations of Primary Frequency Control for Large Thermal Generating Unit

大型发电机组的一次调频对保持电力系统频率稳定、防止因突发的负荷变动及发电机跳闸等功率突变造成的频率波动,引发连锁反应至关重要。为研究大型火电机组的一次调频特性建立了基于MatlabSimulink工具的仿真平台,并给出了利用此平台进行大型火电机组一次调频特性和影响因素研究的结果。该平台为大型火电机组机炉协调运行方式和参数整定等研究提供了定量分析手段。

The primary frequency control of large thermal generating unit is of crucial importance to power system frequency stability, prevention cascaded tripping caused by system frequency fluctuation due to sudden load variation and generator trip-out. To research the primary frequency control characteristic of large thermal generating unit, a simulation platform based on Matlab Simulink is built. Using this platform a research on primary frequency control characteristic of large thermal generating unit and its impacting factors are performed and the results of this research are given. The built simulation platform offers a quantitative analysis measure for research on boiler-turbine coordinated operation modes of large thermal generating units, parameter setting of speed governor and so on.