System Simulation and Implementation of SIPS in Taiwan

Table 4

Action table for area transfers and triggering actions.

(a)

ID: C4 A37		1-step  1-load shedding				2-step  2-load shedding and shunt trip actions
Central-to-n; orth transfer (MW)	South-to-; Central transfer (MW)
		Number of loads shed in north	MW load shedding in north	Number of loads shed in central	MW load shedding in central	Number of loads shed in north	MW load shedding in north	Number of loads shed in central	MW load shedding in north	Max. number of shunt trips in north	Max. number of shunt trips in central
4600	2600	6	424.14	13	1043.65	4	402.14			12	8
4600	2800	6	424.14	13	1043.65	5	529.88
4600	3000	6	424.14	13	1043.65	5	529.88
4800	1800	7	538.48			9	867.05
4800	2000	12	981.88			5	503.82

(b)

3-generator shedding; (Plant 1: combined-cycle units; Plant 2: coal units; Plant 3: LNG units)							4-bus-tie switching		5-postaction; Power flow violation
Plant 1		Plant 2		Plant 3			Bus-tie 1	Bus-tie 2	Voltage	Thermal
GT 1~4	GT 5~8	Unit 1	Unit 2	Unit 1	Unit 2	Unit 3
1	2	1	1						1
1	2	1	1	2
1	2	1	1	2
2		1	2
1		1	2