Power-friendly Primary Frequency Control Method and System of Receiving-end Grid

2018 1st International Conference on Environment Prevention and Pollution Control Technology

生态环境科学

Li, Jun^1 ; Li, Wei Wei^2

State Grid Shandong Electric Power Research Institute, Ji'nann Shandong

250002, China^1

Network Center, Shandong University of Arts, Ji'nan, Shandong, 250014, China^2

关键词: Assessment system;    Interconnected power grid;    New energy sources;    Power fluctuations;    Power grid frequencies;    Primary frequencies;    Primary frequency control;    Thermal power units;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/199/5/052003/pdf
DOI  :  10.1088/1755-1315/199/5/052003

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

With the rapid development of new energy sources such as wind power and photovoltaics, and the intensification of interconnected power grids, power fluctuation problem brings adverse influence on power grid frequency control. The stability of power grid frequency mainly depends on primary frequency compensation (PFC) of thermal power units. How to control and improve the PFC ability is the precondition to realize the safe and stable operation of power grid. By analyzing the PFC assessment system and standard of power grid, the problems in the current unit's PFC were pointed out. By dynamically correcting the current rotation difference according to the actual main steam pressure measurement value of the unit, it can fully compensate the grid power gap by using the unit's heat storage. The application results show that the power-friendly PFC method and system of receiving-end grid can effectively control the thermal power units to achieve the stability of power grid frequency.