@thesis{thesis,
		author={Soewono  Soetjipto and SUTJIADI  ERICK},
		title ={PEMODELAN KONTROL FREKUENSI BEBAN DAN STRATEGI
PEMUTUSAN BEBAN PADA PEMBANGKIT LISTRIK TENAGA
GAS},
		year={2016},
		url={http://156.67.221.169/2098/},
		abstract={In a power system, load always changes; power flows to the system will be vary too. In the event of two interconnected power generations trip one of its
generators unit, there will be a change in frequency. In this discussion, PLN is connected to plant's power system, if one of its generations trips and lost its
synchronization then the entire power system fails. A model is developed to simulate the trip events, a model that represents gas turbine generator. GAST is
turbine model used to simulate unit's frequency response against load changes in the power system. Using SIMULINK, a simulation tool a model for multi area
is made. First model aims to distinct the response using the primary controller and secondary controller PID. PID control gain value Kp = -6.0889, Ki = -0.3792, Kd = -2.2244 provides better transient oscillation. Multi area control is a control that represents the real research object of this study in which there are two gas turbine generators parallel to PLN grid. Simulations are performed with
loading of 0.05 p.u from a base of 100 MVA, the simulation shows error of 0.05 p.u Hz at steady state, this is called as area control error (ACE). Tie line bias
control is used to zero frequency deviation in steady state. Multi-area simulation, also models mechanical power, tie line power of each load. The generator characteristics allows balanced load-sharing between the two control areas. The model is validated using the transfer function analysis and found similar results between calculation and simulation results. Thus it is worth to considered that the model is representative. There are two conditions were simulated, first when the PLN grid faults and fail the synchronization and the
second when one the generations falls within one control area. The simulation results showed the rapid falls of frequency for condition that one generation GT-
2 trips with rate of 0.022 Hz p.u / sec. As the frequency response is a function of load and time, it is possible to determine the strategy of two-stage load shedding of 10 MW and 11.5 MW in the period of 2.2 seconds. Load shedding can restore frequency back to its nominal. The simulation results can be made as a reference in load shedding relay configuration.}
		}