Research on Optimal Access Point and Capacity of Multiscenario Wind Turbine Based on Voltage Sag

Table 1

Nomenclature list.

CS	Trend similarity between two curves
	The probability of occurrence of each scene s
Pr(s)	The normalized probability for each scene
CH(+)	Ratio of within-class deviation to between-class deviation
	Trace of the between-class deviation matrix
	Trace of the within-class deviation matrix
	Voltage matrix when x-type short-circuit fault occurs
	Voltage major axis matrix when x-type short-circuit fault occurs
	Voltage minor axis matrix when x-type short-circuit fault occurs
	Voltage sag matrix when x-type short-circuit fault occurs
	Voltage sag depth matrix when x-type short-circuit fault occurs
	Failure probability of x-type short-circuit fault
	The total number of buses
	The depth indicator when x-type short-circuit fault occurs
	The average depth of voltage sag
	The total economic loss of sensitive load caused by voltage sag
	The total cost of wind turbine accessing
	The annual operation and maintenance cost of the wind turbine accessed to the node i
	The failure cost of the wind turbine accessed to the node i
	The network loss
	The total economic cost caused by network loss after considering multiscene