Tri Yuwono, Eko Aptono and Nurdin, Muhammad and Hariyanto, Nanang and Khairudin, Khairudin and Mitani, Yasunori (2014) OSCILLATION DAMPING WITH DIRECT LOAD CONTROL BASED ON PMU MEASUREMENT DATA. In: CEPSI 2014, 27-30 October 2014, Jeju, Korea.

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Abstract

To prevent loss of synchronism, power oscillations should be damped with an adequate damping torque so that system can regain a new equilibrium point. There are several methods that have been used to improve the damping such as using Power System Stabilizer (PSS), Flexible AC Transmission System (FACTS) device or HVDC Transmission system. The implementation of PSS needs valid and detail power system parameter data such as line data, generator data, etc. These data are required to get the correct setting of PSS. Un-proper PSS setting can lead to power system instability instead of strengthen the power system. In Indonesian power system, line data and transformer data can be easily collected but generator parameters data are very hard to obtain especially for old generator. The large number of generator installed in the system made the data collections took a lot of time. These conditions makes implementation of PSS is not a simple task in Indonesia The main principle of damping controller that is installed in the transmission line such as FACTS device is to control the power flows. Based on these principles, direct load control can be used to improve the power oscillation damping. Simulation using a simple Kundur’s two area power systems is conducted as model. Modal analysis and sensitivity analysis are used to identify the load that having significant effect to the power oscillations. Phase plane analysis is conducted to identify the switching time of the loads. Simulation shows with the proper switching time, power oscillations can be damped with direct load control. Loads in each area are switched off in particular order to control the power flows in transmission line. PMU measurement data are used as an input. This method can be used for temporary solution as long as damping controller with PSS has not implemented yet.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Fakultas Teknik (FT) > Prodi Teknik Elektro
Depositing User:	DR. Khairudin KHAIRUDIN
Date Deposited:	13 Apr 2017 04:32
Last Modified:	13 Apr 2017 04:32
URI:	http://repository.lppm.unila.ac.id/id/eprint/1514

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