Transient Stability Improvement for Combined Heat and Power System Using Load Shedding

Table 1

Operation modes of CHP units.

Operation modes	GTG1 (MW)	GTG2 (MW)	GTG3 (MW)	STG (MW)	Total Gen (MW)	Total load (MW)
3G1S^*1	45	45	45	36.6	171.6	153.97
2G1S^*2	45	45	OFF	36.6	126.6	153.97
1G1S^*3	45	OFF	OFF	36.6	81.6	153.97

∗1Three gas turbine units and one steam turbine unit.
^*2Two gas turbine units and one steam turbine unit.
^*3One gas turbine unit and one steam turbine unit.