Analysis of the Influence of Renewable Generator Frequency Endurance Capability on Low-Frequency Load Shedding: A Hunan Case Study

Table 4

Statistical analysis results of frequency endurance capability.

Round of actions	Foundation turn					Special turn
	I	II	III	IV	V	I	II	III
Action frequency (Hz)	49	48.75	48.5	48.25	48	49.25	49.25	49.25
Action delay (s)	0.15	0.15	0.15	0.15	0.15	10	15	20
Load reduction ratio at each level (%)	6.6	6.57	6.57	6.57	6.57	2.39	2.39	2.39