基于灵敏度分析的孤立电网频率控制方法

Frequency control method of isolated grids based on sensitivity analysis

利用实时仿真平台对某地区含高耗能电解铝负荷的孤立电网进行仿真研究,分析不同运行方式下系统的安稳控制策略,指出在极端情况下安稳控制策略动作后系统仍会存在不平衡功率,提出一种基于电压灵敏度分析的孤立电网频率控制方法,仿真结果验证了控制方法的有效性。

Based on the actual isolated power grid with high energy consumption load in a certain a re a , the simulation studies are conducted in the real-time digital simulation platform. The security and stability control strategy is analyzed under different operation mode. The analysis results point out that power imbalance still exists in the isolated power system after the security and stability control device acts successfully under the extreme conditions. A control method to eliminate the power imbalance based on the voltage sensitivity analysis is proposed. The simulation results verify the effectiveness of the proposed control method.