Phase synchronous inverter for microgrid system

Rahman, Tawfikur and Motakabber, S. M. A. and Ibrahimy, Muhammad Ibn (2016) Phase synchronous inverter for microgrid system. In: 6th International Conference on Computer and Communication Engineering (ICCCE 2016), 25th-27th July 2016, Kuala Lumpur.

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Abstract

The synchronous inverter is an electrical inverter device which is synchronizing inverter phase into the microgrid phase at the same amplitude and frequency. A three phase phase synchronous inverter (PSI) is basically used in the high efficiency power supply systems. The inverter phase is depend on the controllers which are two level pulse width modulation (PWM) generator, phase lock loop (PLL) regulator, DC voltage regulator current regulator and Uref generator to get the reference input and output voltage and current for synchronizing the phase angle. An inverter using a three leg IGBT has been designed for microgrid systems and simulated by using MATLAB2014a. The input and output lowpass LC filters are used to synchronize the micro-grid phase. The controllers have generated PWM signal and a zero crossing sampling is used to precisely synchronize with microgrid line frequency. A balanced microgrid load of star configuration (00, 1200 and -1200 degree), and also the input DC voltage ± 250V are considered in this design. The overall conversion efficiency of the PSI is 97.62% and phase synchronization error for each phase is about 0.50, 1540 and 2650 degrees. The results show that the design has better performance and can be used efficiently in the micro-grid system.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	6791/52275
Uncontrolled Keywords:	three phase inverter; Synchronous inverter control; LC filter; micro-grid
Subjects:	T Technology > T Technology (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User:	Dr Muhammad Ibrahimy
Date Deposited:	14 Oct 2016 09:46
Last Modified:	28 Sep 2017 13:08
URI:	http://irep.iium.edu.my/id/eprint/52275

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