一种适用于超临界火电机组负荷适应及一次调频研究的数学模型

Mathematical Models Which Suit for Supercritical Unit Load Adaptation and Primary Frequency Regulation Research

随着电网自动化水平的提高,对单元机组的负荷适应能力、参与电网调频能力提出了更高的要求。为了反映、评估、改善当前国内单元机组负荷适应及参与电网调频的能力,根据集总参数法建立了超临界火电机组不同负荷下的数学模型。利用Simulink软件进行了超临界火电机组在不同负荷下负荷适应能力、参与电网调频能力仿真实验。结果表明:模型的正确性及有效性,为提高超临界火电机组在不同负荷下负荷适应能力、参与电网调频能力提供了平台,为实现负荷频率最优控制打下基础。

With the improvement of power grid automation,the demand is more higher tounit load adaptability and participating in primary frequency regulation ability. In order to reflect,evaluate and improve these abilities,we found mathematical models of supercritical thermal power unit under different loads,based on the lumped parameter method. We do the unit load a-daptability and primary frequency regulation dynamic simulation under different loads with Simulink. It demonstrates the mathematical models are correct and effective. These models provide a platform for improving unit load adaptability and primary frequency regulation ability so that laying a solid foundation for achieving the optimal control of load frequency.