光储并网系统中采样时间间隔对容量配置的影响

Influence on Related Sensitive Factors of Grid-Connected Photovoltaic System to Capacity Allocation

分析了光储系统中用于平抑功率波动的一阶数字低通滤波控制策略中的频域特性,给出了截止频率下的采样间隔和截止频率的参考值。在此基础上分析了不同采样时间间隔对储能系统容量配置的影响。结果表明,在光储系统中进行储能系统容量配置时,应选择合理的采样间隔和滤波系数,同时可以产生减少储能系统频繁动作和降低储能系统的配置容量效果。

This paper analyzed the frequency characteristics in the first low-pass filter strategy to stabilize the fluctuation of power control in the optical storage system, and gave the sampling interval under the cut-off frequency and the reference value of the cut-off frequency. On this basis, this paper analyzed the influence of different sampling intervals on the capacity allocation of energy storage system. The analysis results show that when allocating the storage system capacity in the optical storage system, we should choose a reasonable sampling interval and filter coefficients,meanwhile,it can reduce the frequent movement in the energy storage system and lower the capacity allocation of the energy storage system.